CN112856335A

CN112856335A - LED long afterglow composite luminous strip lens and luminous equipment containing LED long afterglow composite luminous strip lens structure

Info

Publication number: CN112856335A
Application number: CN202110344424.XA
Authority: CN
Inventors: 方显峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-05-28

Abstract

The LED long afterglow composite luminous strip lens comprises a lens body structure (1) and a long afterglow luminous forming body (2), wherein the lens body structure (1) comprises a strip-shaped middle light distribution optical main body part (11) and side wall parts (12) which are respectively arranged on two sides of the lens body structure and are connected with the outer side parts of the lens body structure, the middle part of the bottom of the middle light distribution optical main body part (11) is inwards sunken to form a strip-shaped accommodating groove (1A), an accommodating groove (1B) or a conjunction structure (1D) is arranged on the lens body structure (1) according to the area, the long afterglow luminous forming body (2) is combined on the lens body structure (1) through the accommodating groove (1B) or the conjunction structure (1D), and the combining surface of the long afterglow luminous strip lens is provided with a transparent light guide medium (3) to; can be combined with LEDs to produce various light emitting devices; the light distribution proportion of the light energy can be adjusted, the light distribution of the emergent light field is realized, the light coupling effect is realized between the emergent light field and the long afterglow light emitting forming body (2), and the emergent light of at least part of the LED light emitting body can be emergent according to the light path design while the advantage of afterglow light emission is kept.

Description

LED long afterglow composite luminous strip lens and luminous equipment containing LED long afterglow composite luminous strip lens structure

Technical Field

The invention relates to the field of light-emitting optical devices and light-emitting apparatuses, in particular to an LED long afterglow composite light-emitting strip-shaped lens and a light-emitting apparatus containing the LED long afterglow composite light-emitting strip-shaped lens structure.

Background

The long afterglow luminescent material, also called luminous material, is a photoluminescence material: under the excitation of a light source, visible light is emitted, part of the obtained light energy is stored, after the excitation is stopped, the energy is slowly released in the form of light, and the luminous brightness of the luminescent material is related to the performance of the luminescent material and the thickness of the long afterglow luminescent layer and the concentration of the long afterglow luminescent powder in the luminescent material; because of the continuous development and progress of the LED combined with the long afterglow technology, the luminous brightness of the long afterglow material is greatly improved, the material is gradually paid attention in the years, is applied to the field of various luminous devices, is popular with markets and consumers, forms the industry and local standards, and forms the industrialized development.

The existing photoelectric long afterglow luminophors mainly comprise the following three types:

one of them adopts coating method to set long afterglow luminescent material layer or cover luminescent film on the surface of luminophor, as represented by patent No. 100467938C, CN 204328843U, and uses electrolumiphor to excite long afterglow, and partial light is passed through the long afterglow to give out light, and because of the limit of production process, the thickness of the long afterglow luminescent material layer is generally less than 1mm, so that the afterglow brightness is too low, and it is difficult to meet the practical requirements of long afterglow luminescence;

one of them mixes the long afterglow luminescent powder with the light guiding medium and then makes them into the long afterglow luminescent face shell by extrusion or injection molding or die pressing process, represented by patent No. CN 101776213B, CN 205723621U, CN 104170103A, CN 206890416U, the method can make the long afterglow face shell reach enough thickness, although the long afterglow can be fully excited by the LED luminescent device in the face shell, because the light transmittance of the LED luminescent device in the long afterglow face shell is low, the brightness is too large, the original luminescent function is greatly weakened or even lost, and because of the matching of the excitation curve, the luminescent color of the original luminescent body is greatly limited, the diversity of the luminescent color of the LED long afterglow luminescent body is limited, and the luminescent mixed light with the afterglow luminescent light, the luminescent color product is deviated, the luminescent is impure, and the color difference is generated, and the manufacturing cost is high;

and the other type of the LED light source is formed by directly mixing long-afterglow luminescent powder and a light guide medium above a luminescent device such as an LED array lamp panel, then pouring and curing the mixture or pasting and compounding the mixture.

Finally, in the long afterglow photoelectric product in the prior art, the long afterglow material is basically arranged in a planar covering manner by combining with the LEDs, is mainly formed by liquid pouring and leveling, is mainly in a layered form, the LEDs are arranged below or inside the long afterglow material, the LEDs only have good light emitting effects of SMD type (surface mount type) LEDs, the light emitting effects of other packaging type LEDs are not ideal, and a part of products are also provided with a light-transmitting protection panel above the long afterglow light emitting layer; especially, the light-emitting effect of the arrangement mode of the long-afterglow material contacting with the LED is taken as the main point, when the LED emits light, a part of light energy excites the long afterglow, and a part of unconverted light energy is scattered and emitted by the long afterglow luminescent layer, so that the prior art product has the following defects:

1. the long afterglow luminescent layer is mainly excited by transmission, the current LED mainly comprises an SMD (surface mounted device), a COB (integrated device), an LAMP (direct plug-in type) or a lumen-imitating LAMP bead, the packaging mode, the product shape, the size specification, the luminescent performance and the welding mode of the LAMP bead are respectively different, the using side points are also different, part of the LED is packaged through once, particularly, the height (thickness) between the top of the LED luminous body and a circuit board layer is different, so the thickness of the long afterglow luminescent layer above the LED and the periphery of the LED is not uniform, the thickness of the long afterglow luminescent layer above the LED is smaller than that of the long afterglow luminescent layer at the periphery of the LED generally, the thickness of the long afterglow luminescent layer above the LED is easy to be too thin, the afterglow brightness is insufficient, or the thickness of the long afterglow luminescent layer at the periphery of the LED is too thick, the excitation of the long afterglow luminescent layer is; moreover, the long afterglow material of the existing LED long afterglow illuminant is difficult to be made into various three-dimensional shapes, and the three-dimensional luminous effect is not good, so that the luminous visual angle, particularly the luminous visual angle of lateral luminescence, is limited; in a word, the LED light energy utilization rate is low, and the light emitting effect and the LED light distribution emergent effect are poor.

2. Because the long-afterglow luminescent layer is arranged above the LED luminous body, the LED luminous body is absorbed and scattered by the long-afterglow powder when being emitted through the long-afterglow layer, which can cause the light intensity loss of the LED emergent light, the directivity is poor (the emergent light loses the directivity), the purpose of designing and emitting according to the light path [ being convenient for realizing parameters such as luminous angle, beam angle or light intensity distribution and the like, such as condensation, diffusion or deflection (emergent main beam and luminous main shaft are emitted in an acute angle) or polarization (sometimes called as light, the emergent light energy distribution of one side is larger than that of the other side) and the like ] is difficult to achieve, the requirements of fixed-point (area) light projection with illumination purpose or directional (angle) projection with indication purpose can not be met completely especially on the luminous equipment which needs the fixed-point (area) light projection with illumination purpose or the directional (angle) projection requirement with indication purpose, and the existing products have short luminous range and short sight distance and, the range of use is limited.

3. The long afterglow luminescent layer covers the LED luminophor, the luminescence of the LED luminophor penetrating through the long afterglow luminescent material is mixed-color luminescence with the long afterglow excited light, so that the luminescent color is impure, and the chromaticity is shifted, so that the influence and interference on the luminescent spectra of the LED luminescent device chromaticity, color temperature and the like are too large when the long afterglow excited light is caused, and the luminescent spectrum of the original LED is influenced: when a white light LED corresponding to the illumination purpose is used as an excitation light source, the spectrum quality of the white light is seriously influenced, and when excitation light sources of other colors are adopted, luminescent chromaticity is influenced, so that the application range of the luminescent chromaticity is limited.

In short, the long afterglow luminescent products in the prior art have the fatal defects and other defects, restrict the development of the products and become a difficult problem to be solved urgently in the industry.

Disclosure of Invention

Aiming at the problems, the technical problems to be solved by the invention are as follows:

the LED long afterglow light emitting device can distribute the light energy ratio of an emergent light part of an LED luminous body and an exciting light part for exciting long afterglow luminescence according to design requirements, has high light energy utilization rate, can select the advantages of emphasizing on utilizing the self luminescence of the LED and giving consideration to the long afterglow luminescence function, can also select the advantages of emphasizing on utilizing the long afterglow luminescence and giving consideration to the self luminescence function of the LED, has good luminescence effect (LED luminescence effect and long afterglow luminescence effect) and light distribution effect, has the double functions of LED light distribution function and long afterglow luminescence, can solve the defects of the existing LED long afterglow light emitting device, can be suitable for LEDs of various types and specifications, is convenient to produce, manufacture and mount and use at the later stage, can serve as an LED long afterglow light emitting lens structure of a general device, and solves the problem of industrial development;

particularly, the redistribution adjustment of the emergent light field can be realized, so that at least part of emergent main beams of the LED luminous body can be emergent according to the light path design [ parameters such as light-emitting angle, beam angle or light intensity distribution, such as light condensation, divergence or deflection (emergent main beams and a light-emitting main shaft form an acute angle), and the like ] can ensure that the emergent light meets the requirements of fixed-point light projection or directional (angle) projection of the main beams, and the influence of dark regions on illumination and projection caused by the shading of the long-afterglow luminous body can be eliminated or partially eliminated by enlarging the light-emitting angle (unilateral angle enlargement or bilateral angle enlargement and beam angle) of the emergent light;

the long afterglow luminous body is kept to emit light, and the LED emits light in the original color (the original luminous performance and the original luminous wavelength), so that the long afterglow luminous body is more suitable for a white light LED and a double-chip packaged LED or a multi-chip packaged LED (dual-color or multi-color light emission) with different luminous wavelengths, and the light interference (chromaticity shift and the like) caused by the long afterglow excited light to the LED is reduced.

The long afterglow mixed slurry can bring other advantages, such as strip-shaped accommodating grooves, convenient pouring and leveling of the long afterglow mixed slurry and simple manufacture; when long afterglow luminescence is realized, an afterglow brightening effect (generally in a strip shape) of superposed luminescence at adjacent parts of the long afterglow and a luminous virtual strip of afterglow luminescence formed at the light incident surface or the light emergent surface play a role in brightening; the micro-structure can be arranged on the lens, so that the incident light outside the lens generates a reflecting effect of a local angle on the light incident surface, the total reflection surface or the light emergent surface, and when the micro-structure is combined with the TIR lens, a better reflecting effect can be generated on the total reflection surface, so that the micro-structure has a back reflection function.

The LED long afterglow composite luminous strip-shaped lens has the advantages that the size can be large or small, the small LED long afterglow composite luminous strip-shaped lens can serve as a composite luminous lens of a single strip-shaped LED, and the large LED long afterglow composite luminous strip-shaped lens can serve as a lens for integrally packaging the LED or a lamp shell or a lamp surface of an LED luminous appliance; the long-afterglow LED non-imaging lens can be used as an LED non-imaging lens with the emphasis on the secondary light distribution application, and has long-afterglow luminescence, so that the lens has an afterglow luminescence function; the LED long afterglow composite luminous strip lens can also be used by focusing on a long afterglow luminous body with the long afterglow luminous application, and the long afterglow luminous body also has the light distribution function of the lens; the directional emission and the original luminous performance (conventional luminous performance such as luminous wavelength, chromaticity or color temperature) of the LED luminous device can be kept to the maximum extent through light distribution design, the LED luminous device can also have an afterglow luminous function with high brightness, the afterglow luminous brightening effect can also be achieved through the light distribution design, the design aim can be achieved through light field distribution of the emergent light, and the negative influence on the original LED long afterglow luminous body when the long afterglow luminous body is excited by the exciting light can be reduced [ the influence of a light projection dark area on illumination, projection and the like caused by the reduction of light intensity due to the afterglow shading (absorption and scattering) of the long afterglow luminous body can be eliminated or partially eliminated ]. The LED long-afterglow composite luminous strip lens can achieve the purposes of higher light energy utilization rate, better universality, more superior luminous performance, higher integration level and standardization level, high convenience degree and wider applicability through light distribution design, can meet the emphasis of various different luminous requirements, can be used for indicating the special luminous field with the main luminous or induced luminous application, and can also be used for the conventional luminous field with the main illumination.

The LED long afterglow composite luminous strip lens not only overcomes the defects of the existing long afterglow luminous equipment, but also increases the functions of the existing long afterglow luminous equipment, not only has the long afterglow luminous function, but also has the functions of light gathering, light scattering, deflection and the like to achieve light distribution emergence, can be used for fixed point (area) light projection or directional (angle) projection purposes, improves the comprehensive luminous performance, has application value in the field of security and protection luminescence, and expands the application and use fields. It is especially suitable for white light LED light source and other color light source, and may be used directly as lighting lamp casing or used as lighting fixture inside transparent protecting lamp casing, such as toughened glass casing or metal casing.

The lens can be combined with an LED to be made into an LED or an LED luminous body with an afterglow luminous function, such as a strip lamp, a panel lamp, a modeling lamp and the like, is more suitable for being made into an LED long afterglow luminous body with a three-dimensional luminous effect, and can be used as a local structure to be applied to various luminous devices or equipment or be made into various general luminous optical standard devices and equipment; the LED lamp can be directly used as a luminous lamp housing or used as an integrated luminous device or equipment, so that the LED lamp can be used in the fields of traffic, fire protection, emergency and the like, can be mounted on vehicles such as vehicles to play a role in displaying the outline of a vehicle body, can also be mounted on traffic facilities such as pavements, wall surfaces and guardrails to play a role in indicating lamps or contour lamps, can be expanded to the conventional luminous fields such as the conventional white light illumination field and the multicolor luminous field, and solves the difficulty in the prior art.

The light distribution principle of the light emission is as follows: according to the light emitting performance of the LED illuminant (the LED is generally lambertian, as shown in fig. 3), a lens body is used as a carrying substrate of the long afterglow illuminant, the proportion of the planar angle interval occupied by the long afterglow illuminant on the cross section is larger than the solid angle of the corresponding LED, the proportion of the light afterglow energy of the LED illuminant and the excitation light for exciting the long afterglow is distributed according to the solid angle of the LED and the volume or area corresponding to the solid angle direction, as shown in fig. 4:

the total luminous flux of the light emitted by the LED luminous body (Lambertian body) is about

Namely, it is

The luminous flux for exciting long afterglow in the emergent light of the LED luminous body (Lambert body) is about

Namely, it is

Where θ is the angle of the light-emitting direction from the light-emitting axis, and θ_1/2Phi is the angle of the bottom surface of the lens corresponding to the light emitting direction (polar coordinates are established on the bottom surface of the corresponding lens by taking the light emitting center as the origin), and I (theta) is the light emitting intensity of the LED luminous body in the theta angle direction.

Therefore, the ratio of the light energy of the emergent light part of the LED luminous body (Lambertian body) to that of the exciting light part for exciting the long afterglow luminescence

η＝φ’/φ；

The lens body structure functions as an LED light energy distributor, namely: the luminous intensity of the LED at the stereoscopic angle position where the long afterglow is positioned is used for exciting the long afterglow, the long afterglow is understood to be a non-directional scattering light source when excited by the exciting light, the exciting light of the long afterglow material and the LED are superposed to emit light at the moment, the rest part still follows the original directional light emission and light emission spectrum of the LED, the light energy distribution is completed on an LED lens, the original light emission and the light energy light distribution for exciting the long afterglow are realized, the total light energy utilization rate is high, the light emission effect (the LED light emission effect and the long afterglow light emission effect) and the light distribution emergent effect are good, and the requirements of multicolor light emission (even the full visible light spectrum section light emission can be realized) can;

the LED is small in size, the lens body is large in size, the light-emitting area of the LED can be enlarged through the lens body, or the light beam of the LED is enlarged to excite the long-afterglow light-emitting body with a corresponding large area, so that the light-emitting area is enlarged, the operation error is smaller, and the operation is easier;

the lens body can also serve as a secondary light distribution function of an LED emergent light field, especially has a light-gathering and emergent function along a light-emitting main shaft on the LED emergent by combining with TIR, also has a brightening function on long afterglow light, and further improves the light-emitting performance.

The design idea of the invention can be understood that because the LED luminous body is a Lambert body, the light intensity closer to the light-emitting main shaft is larger, and the light intensity farther away from the light-emitting main shaft is smaller; if the long afterglow luminous effect is emphasized, the long afterglow luminous forming body is close to the solid angle position of the luminous axis of the LED, so that the long afterglow luminous body is fully excited to improve the long afterglow luminous brightness, or/and the solid angle ratio or the area ratio of the long afterglow luminous forming body is increased to increase the luminous area of the long afterglow luminous forming body; in order to focus on the secondary light distribution emission effect of the LED, the long-afterglow luminescent molded body is preferably away from the solid angle position of the light emitting axis of the LED, the excitation light intensity of the long-afterglow luminescent body is reduced to properly reduce the long-afterglow luminescent brightness, or/and the solid angle ratio or the area ratio of the long-afterglow luminescent molded body is reduced to properly reduce the luminescent area of the long-afterglow luminescent molded body.

Furthermore, the strip-shaped accommodating groove with a downward opening is arranged at the bottom or the side part of the light-transmitting body close to the outer edge, and the strip-shaped long-afterglow light-emitting forming body is combined in the strip-shaped accommodating groove, so that light emitted by the LED light-emitting body can be totally reflected by the top surface or the outer wall of the side part to excite the backlight surface (facing an observer) of the long-afterglow light-emitting body, the problems that the backlight surface is not easy to be fully excited and the brightness is low when the long-afterglow light-emitting body is thick and the luminous intensity of an excitation light source is low are solved, the weak light excitation effect of; the long afterglow luminous body can also achieve the afterglow brightening effect (generally in a strip shape) of superimposed luminescence in the area between the adjacent luminous surfaces of the long afterglow luminous body during long afterglow luminescence, and the long afterglow luminous body can form a luminous profile after refraction and reflection on each surface of the lens body, so that the long afterglow luminous effect is better.

The technical scheme of the invention is as follows: an LED (but not limited to LED) long afterglow composite light emitting strip (including straight strip and curved strip) lens (herein, the lens is a lens which is a general lens including cylindrical lens, non-cylindrical lens, prism, or the above-mentioned combined lens, etc., and the size can be large or small, and the size can be small, and can be used as a composite light emitting lens of a single strip LED, and the size can be large, and can be used as a lens for integrally packaging LEDs or as a lamp surface or a lamp housing of an LED light emitting device), as shown in FIG. 1, the lens comprises a lens body structure (1) (sometimes called lens housing), and is combined (preferably bonded, cured and formed) by a liquid (preferably poured, sometimes called dripping or dispensing, extruded) or molten (preferably injected) mode (preferably bonded, cured and formed, generally by liquid pouring, extruding or molding, the long-afterglow light-emitting forming body (2) is injected or molded in a molten state, preferably poured or extruded in a liquid state) on a lens body structure (1), the lens body structure (1) comprises a long-afterglow light-emitting forming body (2) used for adjusting the light energy distribution ratio of LED emergent light and exciting light of the long-afterglow light-emitting forming body (2), plays a role in optical coupling and secondary light distribution of the LED emergent light, plays a role in an optical main body structure, extends into a strip-shaped and transparent middle light distribution optical main body part (11) along a certain direction (a straight strip shape along a vertical direction and a non-straight strip shape along a non-vertical direction) with the same cross section shape, and side wall parts (12) of the middle light distribution optical main body part (11) are respectively arranged at two sides of the middle light distribution optical main body part and are connected with the outer side parts of the middle light distribution optical main body part (the whole body part can be formed in a one time or the transparent, the lens is preferably transparent or partially transparent and mainly serves as a surrounding barrier, an inward-concave accommodating groove (1A) with a downward opening and capable of accommodating a strip-shaped LED (sometimes called a linear array LED or an LED light bar) is arranged at the central part or close to the central part of the bottom (bottom surface) of the middle light distribution optical main body part (11), and an accommodating groove (1B) or a fitting structure (1D) for combining the long-afterglow light-emitting forming body (2) is arranged on the lens body structure (1) according to the region; the long afterglow luminous forming body (2) is a strip-shaped solidified forming body formed by mixing long afterglow luminous powder and a liquid or molten state light transmitting mixed medium in proportion and then solidifying (wherein the light transmitting mixed medium and the transparent light guide medium (3) can be made of the same or different materials), a part (generally positioned at two sides of the central accommodating cavity (1A) or combined on the peripheral part (12) or combined at the top of the central accommodating cavity (1A) at a position between the side wall of the central accommodating cavity (1A) and the peripheral part (12) through an accommodating groove (1B) or a fitting structure (1D), wherein the transparent light guide medium (3) is arranged on a combining surface of the lens body structure (1) and the long afterglow luminous forming body (2), the combining surface is a light guide coupling surface (1e), at least part of light of a strip-shaped LED excites the long afterglow luminous forming body (2) through the light guide coupling surface (1e), the long afterglow luminescent forming body (2) guides light to emit light outwards through the light guide coupling surface (1 e);

the bottom (lower part) of the middle light distribution optical main body part (11) with the accommodating groove (1A) is a lighting part (namely the accommodating groove (1A) is partially surrounded by the lighting part), the bottom of the lighting part is provided with lighting part bottom surfaces (1b) which are arranged at two sides of the accommodating groove (1A) in parallel (the lighting part bottom surfaces play a role in supporting, structure transition, limiting or positioning (used for fixing a strip-shaped LED or a circuit board), auxiliary light guiding and the like, are generally flat surfaces, limiting grooves or brackets for accommodating the strip-shaped LED can be arranged on the lighting part bottom surfaces, and a light outlet part is arranged above the corresponding lighting part; as shown in fig. 2, the inner wall (but not limited to the inner wall) of the accommodating groove (1A) of the light-collecting part is a light-incident surface (1A), the top light-emitting surface (1f1) of the light-emitting part or/and the outer side surface of the side wall part (12) connected with the light-emitting part is a light-emitting surface (1f), at least a part of each of the light-incident surface (1A) and the light-emitting surface (1f) is correspondingly formed between the light-incident surface (1A) and the light-emitting surface (1f) to form a light-emitting channel which can make part of light beams emitted by the strip-shaped LED in or under the accommodating groove (1A) directly transmit outwards from the inside to the outside by the original light-emitting spectrum of the strip-shaped LED after being refracted or reflected by the light-incident surface (1A) in the lens body structure (1) and without passing through the light-guiding coupling surface (1e), and make part of the light emitted by the strip-shaped LED have a light-distributing function (a three- Angular light field secondary distribution) to achieve the purpose of fixed point (region) light projection or directional (angle) projection, a light excitation channel which can lead the light emitted by the strip-shaped LED to be transmitted to the long afterglow light-emitting forming body (2) through a light guide coupling surface (1e) is formed between the light incident surface (1a) and the long afterglow light-emitting forming body (2), a light-emitting channel which can lead the excited light of the long afterglow light-emitting forming body (2) to emit light outwards from the light-emitting surface (1f) through refraction or reflection by the light guide coupling surface (1e) when the strip LED emits light and a light-emitting channel which leads part of afterglow light to emit light outwards from the light-emitting surface (1f) through refraction or reflection by the light guide coupling surface (1e) after the strip LED is extinguished are formed between the long afterglow light-emitting forming body (2) and the light-emitting surface (1 f).

The LED long afterglow composite luminous strip lens can enable light emitted by the strip LED in the accommodating groove (1A) or below the accommodating groove to achieve light energy distribution through optical matching of an optical structure between the strip LED and the middle light distribution optical main body part (11), so that a part of light is incident on the long afterglow luminous forming body (2), and a part of light keeps the original luminous spectrum (mainly indicating luminous wavelength, chromaticity or color temperature such as white light) of the strip LED and is emitted outwards from the light emitting surface (1f) along a light emitting channel according to light distribution design, and especially can form directional emission.

When the strip-shaped LED emits light, part of the light keeps the original light-emitting spectrum of the strip-shaped LED according to the light energy ratio and is emitted from the light-emitting surface (1f) along the light-emitting channel according to the light-emitting field distribution requirement required to be met; meanwhile, the other part of light is transmitted to the long afterglow luminescent forming body (2) on the inner wall of the accommodating groove (1B) to ensure that the long afterglow luminescent forming body (2) is excited by the excitation light;

as shown in fig. 5, after the strip LED is extinguished, the long afterglow luminescence forming body (2) on the inner wall of the accommodating groove (1B) keeps afterglow luminescence in a brightness attenuation mode, and the emitted light emits outwards from the light emitting surface (1f) through the light guide coupling surface (1 e);

thereby forming a strip-shaped long afterglow luminous forming body (2) arranged at a local area, at least the optical main body part (11) is a transparent body, and after the light emitted by the strip-shaped LED is distributed through the lens, part of the light keeps the original light spectrum of the strip-shaped LED to be emitted from a light emitting surface (1f) through secondary light distribution (condensation, diffusion or deflection) along a light emitting channel and the light distribution of the strip-shaped LED excites the long-afterglow light emitting function (after the light emitted by the strip-shaped LED is distributed through a lens, when part of light is incident on the long afterglow luminescent molded body (2) and the long afterglow luminescent molded body (2) is excited to emit light and the strip LED is extinguished, the long afterglow luminous forming body (2) emits light outwards from the light emitting surface (1f) through the light guide coupling surface (1e), and the LED long afterglow composite luminous strip lens is generally used as a lens lampshade or a lamp shell. The lens has the effect of three-dimensional luminescence (enlarging the visual angle), and has afterglow brightening effect on a specific solid angle or a local area.

Furthermore, an accommodating groove (1B) which is inwards concave, has a certain shape, can be used for combining the strip-shaped long afterglow luminous forming body (2) and is parallel to the accommodating groove (1A) is arranged between the middle light distribution optical main body part (11) and the side wall part (12) (the position between the side wall of the central accommodating cavity (1A) and the peripheral part (12)), or the top of the accommodating groove (1A) is provided with an accommodating groove (1B) which is inwards concave, has a certain shape, can be used for combining the strip-shaped long afterglow luminous forming body (2) and is parallel to the accommodating groove (1A) (similar to a ditch (suitable for pouring or dripping liquid luminous slurry leveling) or a groove);

the long-afterglow luminous forming body (2) is a strip-shaped solidified forming body (characterized by a leveling surface) which is formed by directly pouring (sometimes, dripping) a long-afterglow luminous powder and a liquid light-transmitting mixed medium (such as transparent epoxy resin, transparent PU, transparent silica gel and the like) into a containing groove (1B) in a leveling and solidifying manner after being mixed in proportion, wherein the liquid light-transmitting mixed medium serves as a transparent light guide medium (3) and serves as a light guide medium for light energy transfer, the liquid light-transmitting mixed medium is combined on the inner wall of the containing groove (1B) in a shape complementary manner to form an integral structure with strip-shaped long-afterglow luminous forming bodies (2) at the two sides of a central containing cavity (1A) or at the top of the central containing cavity (1A), and the pouring contact surface of the integral structure is a light guide coupling surface (1.

Furthermore, a fitting structure (1D) for mutually combining the lens body structure (1) and the long-afterglow luminescent forming body (2) is arranged on the lens body structure;

the long-afterglow luminous forming body (2) is a strip-shaped preforming body (which can be in a three-dimensional structure, preferably injection-molded) (serving as a peripheral part or serving as a top part) formed by curing through a mold after long-afterglow luminous powder and a molten-state light-transmitting mixed medium are mixed in proportion, and the strip-shaped preforming body is bonded and cured on the lens body structure (1) through a transparent light guide medium (3) in a fit mode according to corresponding regions (at the moment, the transparent light guide medium (3) mainly plays roles in light guide or light coupling and bonding) to form two sides of a central accommodating cavity (1A) or form an integral structure with the strip-shaped long-afterglow luminous forming body (2) at the top part of the central accommodating cavity (1A); and a transparent light guide medium (3) (generally a transparent light guide medium (3) layer) is arranged on a combination surface of a combination part where the combination structure (1D) is positioned to form a light guide coupling surface (1e), a gap capable of containing the transparent light guide medium (3) is arranged on the optimal combination part or contact surface, and the transparent light guide medium (3) is arranged in the gap to form the light guide coupling surface (1 e).

The light energy distribution is adjusted through the matching of optical parameters of the lens and the strip-shaped LED, the three-dimensional angular position (corresponding part) of the long afterglow luminescent forming body (2) in the strip-shaped LED corresponding to the light intensity, the solid angle ratio or the area ratio, and the like, and the light energy distribution can be focused on the long afterglow luminescent application and the conventional luminescent application; focusing on the long-afterglow luminous effect or aiming at a low-power strip-shaped LED light source, the long-afterglow luminous forming body (2) is preferably close to the solid angle position of the luminous axis of the strip-shaped LED (because the light intensity of the part of the luminous axis of the common strip-shaped LED is higher, the long-afterglow luminous body is more favorably excited to emit light), or/and the solid angle ratio or the area ratio of the long-afterglow luminous forming body (2) is increased; aiming at the secondary light distribution emission effect of the strip-shaped LED or aiming at a high-power strip-shaped LED light source, the long-afterglow luminous forming body (2) is preferably away from the stereoscopic angle position of the luminous axis of the strip-shaped LED, or/and the solid angle occupation ratio or the area occupation ratio of the long-afterglow luminous forming body (2) is reduced.

Preferably, the ratio of emergent light energy of the strip-shaped LED is between 15 and 85 percent (both ends are included in the specification), the total projected area of the long-afterglow luminous formed body (2) along the vertical direction accounts for 15 to 85 percent of the projected area of the whole lens, or the ratio of the area of the light guide coupling surface (1e) to the area of the outer surface of the lens body structure (1) is between 15% and 100%, or the ratio of the area of the combined surface of the long afterglow luminous forming body (2) and the accommodating groove (1B) to the surface area of the inner wall of the accommodating groove (1B) is between 15 and 100 percent, or the thickness of the long-lasting phosphor-forming body (2) is between 15% and 85% of the total height of the lens, or the ratio of the accumulated vertical height of the long afterglow luminescent forming body (2) to the depth of the accommodating groove (1B) in the vertical direction is between 15 and 100 percent.

Furthermore, focusing on the long-afterglow luminous effect, the ratio of the total projected area of the long-afterglow luminous molded body (2) in the vertical direction to the projected area of the whole lens is 50-85%, or the ratio of the area of the joint surface of the long-afterglow luminous molded body (2) and the accommodating groove (1B) to the surface area of the inner wall of the accommodating groove (1B) is 50-100%, or the ratio of the thickness of the long-afterglow luminous molded body (2) to the height of the whole lens is 50-85%, or the ratio of the cumulative height of the long-afterglow luminous molded body (2) in the vertical direction to the depth of the accommodating groove (1B) is 50-100%, or the included angle between any point in the space region of the accommodating groove (1B) and the central position for arranging the strip-shaped LED (the included angle is generally positioned on the central vertical axis of the accommodating groove (1A) (corresponding to the axis passing through the central axis of the accommodating groove and perpendicular to the bottom surface of the lens housing) The included angle between the connecting line of the bottom surface (1b) of the lighting part at the bottom of the lighting part and the central vertical axis (corresponding to the axis passing through the containing groove and vertical to the bottom surface of the lens shell, generally corresponding to the LED light-emitting axis) of the containing groove (1A) is 0-45 degrees; the ratio of the total projected area of the long afterglow shaped luminescent body (2) along the vertical direction to the projected area of the whole lens is between 15% and 50% by emphasizing the secondary light distribution emergence effect of the strip LED, or the area of the combined surface of the long afterglow luminescent forming body (2) and the accommodating groove (1B) accounts for 15 to 50 percent of the surface area of the inner wall of the accommodating groove (1B), or the thickness of the long-afterglow luminescent molded body (2) accounts for 15 to 50 percent of the total height of the lens, or the ratio of the height of the long afterglow luminescent forming body (2) in the vertical direction to the accumulated depth of the accommodating groove (1B) in the vertical direction is between 10 and 50 percent, or the included angle between the connecting line of any point in the space zone bit of the accommodating groove (1B) and the central position for arranging the strip-shaped LED and the central vertical axis of the accommodating groove (1A) is 45-90 degrees. The long afterglow luminescent forming body (2) is preferably arranged from deep to shallow near the deepest part of the accommodating groove (1B).

Preferably, the long-afterglow luminescent molded body (2) is formed of SrAl₂O₄Long persistence luminous powder or Sr₄Al₁₄O₂₅Yellow green or blue-green aluminate long-afterglow luminescent powder represented by long-afterglow luminescent powder, or red or near-red long-afterglow luminescent powder represented by sulfide or nitride, and a liquid or molten transparent mixed medium, or the long-afterglow luminescent molded body (2) is a combination of two or more long-afterglow luminescent bodies with different main excitation band wavelengths or different luminescent main wavelengths, or the particle size of the long-afterglow luminescent powder in the long-afterglow luminescent molded body (2) is between 5 and 200 mu m, or the mass concentration of the long-afterglow luminescent powder in the long-afterglow luminescent molded body (2) (the mass ratio of the long-afterglow luminescent powder in the mixed cured molded body of the long-afterglow luminescent powder and the transparent medium (2)) is between 25 and 60 percent, or the mass ratio of the long-afterglow luminescent powder in the mixed cured molded body of the long-afterglow luminescent powder and the transparent medium (2) is 25 to 60 percentThe thickness of the afterglow luminescent molded body (2) is 1.5mm to 10 mm.

Further, the long afterglow luminescent forming body (2) is a forming body formed by pouring liquid mixed slurry of long afterglow luminescent powder and a liquid or molten transparent mixed medium onto the inner wall of the accommodating groove (1B) for leveling and curing.

Further, a strip-shaped accommodating groove (which can be used as the top of the accommodating groove (1A)) is arranged in the accommodating groove (1A) in parallel with the accommodating groove (1A), and a strip-shaped long-afterglow luminescent forming body (2) is combined in the strip-shaped accommodating groove in a liquid state curing mode or a molten state curing mode through a transparent light guide medium (3); or the light-emitting part is provided with a strip-shaped accommodating groove (1B), and the inner wall of the strip-shaped accommodating groove (1B) is combined with a strip-shaped long afterglow luminescent forming body (2) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode.

Further, a strip-shaped containing groove (1B) which is arranged in parallel with the containing groove (1A) is arranged on the lens body structure (1), and the long-afterglow luminescent forming body (2) is combined on the inner wall of the strip-shaped containing groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode to form a connected strip-shaped long-afterglow luminescent forming body; or the lens body structure (1) is provided with strip-shaped accommodating grooves (1B) which are arranged in parallel with the accommodating grooves (1A) and are separated by a transparent body, and the long-afterglow luminous forming body (2) is combined on the inner wall of the strip-shaped accommodating groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode to form a segmented strip-shaped long-afterglow luminous forming body (2).

Furthermore, two or more parallel strip-shaped accommodating grooves (1B) are arranged on the lens body structure (1), and strip-shaped long afterglow luminescent forming bodies (2) are respectively combined on the inner walls of the accommodating grooves (1B) through transparent light guide media (3) in a liquid state curing mode or a molten state curing mode.

Furthermore, the accommodating groove (1B) is narrow at the top and wide at the bottom (thin at the top and thick at the bottom), so that the long-afterglow luminescent forming body (2) has a large emergent angle range or a large visual angle range, and is convenient for demoulding and other production processes; or the side wall light incident surface (1a2) is a cylindrical surface or a parabolic cylindrical surface or an elliptic cylindrical surface, so that the production processes such as extrusion and the like are facilitated; or the cross section of the top of the accommodating groove (1B) is U-shaped, V-shaped or W-shaped; or the cross section of the light guide coupling surface (1e) is U-shaped, V-shaped or W-shaped, so that the strip-shaped LED light can be conveniently emitted, and the excitation and the light emission of the long afterglow luminous body are facilitated.

Further, the lens body structure (1) is a linear LED long afterglow composite luminescent lens which is bilaterally symmetrical along a vertical plane passing through the bottom surface of the central axis of the accommodating groove (1A), the strip-shaped accommodating grooves (1B) are symmetrically arranged at the left side and the right side of the accommodating groove (1A), and the strip-shaped long afterglow luminescent forming body (2) is symmetrically combined on the inner walls of the strip-shaped accommodating grooves (1B) at the two sides of the accommodating groove (1A) in a liquid state curing mode or a molten state curing mode through the transparent light guide medium (3).

Further, the light incident surface (1A) is asymmetric (generally, non-bilaterally symmetric) or the light emitting surface (1f) is asymmetric or the central accommodating cavity (1A) is asymmetric or the accommodating groove (1B) is asymmetric, so that an optical structure having functions of polarized light (sometimes also called polarized light) which can be emitted with higher light intensity along a certain angle or a certain side or projected with higher light intensity to a certain local area is formed between the light incident surface (1A) and the light emitting surface (1f), as shown in fig. 21, the strip-shaped accommodating groove (1B) is non-bilaterally symmetric or the strip-shaped accommodating groove (1B) is arranged to be biased to one side (left side or right side) or the strip-shaped LED is arranged to be biased to one side (left side or right side); or the long afterglow luminescent forming body (2) on the inner wall of the accommodating groove (1B) is asymmetric, if the accommodating groove (1B) is asymmetrically arranged, the long afterglow luminescent forming body (2) is only combined on one side of the accommodating groove (1A), and the long afterglow luminescent forming body (2) is not arranged on the other side, so that the long afterglow luminescent forming body can be designed as required and has different side-focusing requirements on vehicle drivers and pedestrians; alternatively, the optical main body portion (11) has an asymmetric structure, or the peripheral portion (12) has an asymmetric structure.

Furthermore, the light-emitting surface (1f) is an inclined surface with a certain inclination angle or a free-form surface with a certain inclination angle and a convex central part, or a plurality of inclined refraction surfaces are arranged on the light-emitting surface (1 f); at least one part between the light incident surface (1A) and the light emergent surface (1f) forms an optical structure which can lead the emergent main light beam of the strip-shaped LED in the central accommodating cavity (1A) to be emergent in an acute angle direction with the main light emitting shaft.

Preferably, the light-emitting part is a strip-shaped light-emitting part protruding upwards, a strip-shaped lighting part connected with the light-emitting part is correspondingly arranged below the upward protruding part of the light-emitting part, and the center of the bottom of the lighting part is provided with a strip-shaped accommodating groove (1A) which is concave upwards, has a downward opening and is used for accommodating a strip-shaped LED; the side wall part (12) is turned upwards, and a strip-shaped accommodating groove (1B) with an upward opening is formed between the outer side walls of the two sides of the light outlet part and the inner side wall of the side wall part (12); the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode.

Preferably, the lighting part is a downward-protruding strip-shaped lighting part, the center of the bottom of the lighting part is provided with an upward-recessed strip-shaped accommodating groove (1A) with a downward opening and used for accommodating a strip-shaped LED, the inner wall of the groove is a light incident surface, the top wall forms a top wall light incident surface (1A1), and the side wall forms a side wall light incident surface (1A2) which is connected with the top wall light incident surface (1A1) into a whole; the side wall part (12) is turned downwards, and a strip-shaped accommodating groove (1B) with a downward opening is formed between the outer side walls of the two sides of the lighting part and the inner side wall of the side wall part (12); the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode.

Preferably, the lens body structure (1) is made of transparent PC, acrylic, PMMA, PS, epoxy resin or glass with the refractive index n1 of 1.4-2.2, and the liquid or molten state transparent light guide medium (3) is made of epoxy resin, silica gel or PU with the refractive index n2 of 1.4-2.2.

Further, the light-emitting part, the lighting part and the side wall part (12) of the lens body structure (1) are integrally formed or formed in a split combined manner or formed in a plurality of times (preferably, a liquid curing manner or a molten curing manner (such as light guide glue) glue forming manner is adopted through the transparent light guide medium (3)); or the light outlet part and the lighting part of the lens body structure (1) are integrally formed and are glued with the side wall part (12) connected with the transparent top cover into a whole in a liquid state solidification mode or a molten state solidification mode through the transparent light guide medium (3); or the light outlet part and the side wall part (12) of the lens body structure (1) are integrally formed and are glued with the light collecting part into a whole in a liquid state solidification mode or a molten state solidification mode through the transparent light guide medium (3).

Furthermore, the bottom surface of the side wall part (12) is higher than the bottom surface (1b) of the lighting part at the bottom of the lighting part, or the bottom surface of the side wall part (12) is lower than the bottom surface (1b) of the lighting part at the bottom of the lighting part.

Furthermore, a transparent top cover or a transparent protective layer is arranged at the top of the lens body structure (1).

Further, a transparent protective layer is arranged on or above the outer surface of the long afterglow luminescent forming body (2); or the surface of the long afterglow luminescent forming body (2) is provided with a light diffusion layer, a light guide layer or a reflecting layer.

Furthermore, the lens body structure (1) is also provided with a structure accessory (13), the structure accessory (13) is a limiting supporting structure (131) which is connected with the lens body structure (1) and is used for assembling the strip-shaped LED and a circuit board, or an outward-expanding bottom edge (132) which is connected with the side wall part (12) (preferably the bottom part thereof) and is used for installation and fixation, or a fastening structure (such as a screw hole, a nut, a socket or a plug and the like) or a conjunction structure (such as an inverted buckle or interference fit and the like) (133), or a waterproof sealing rubber ring structure (134) or a wire outlet groove (135), or a positioning component (such as a positioning support column, a positioning step and the like) or a conjunction structure or a support piece of the bottom surface (1b) of the lighting part at the bottom part, or a conjunction structure or a fixing structure of the edge of the light outlet part. The lens module has the effects of fitting (serving as an accessory, facilitating assembly or combination with other components), fixing (facilitating fixation with a bar-shaped LED, a circuit board and the like or a base, such as a screw hole or a bracket and the like), packaging (facilitating glue pouring and the like), mounting (serving as a component or equipment for mounting and fixing at the later stage) or the like, and forms the lens module. The structural attachment (13) may be a non-transparent material, or may even be a metal part such as a cap ring, or may be a secondary assembly part.

Preferably, plugs (4) (transparent or non-transparent, in particular to pour long-afterglow liquid resin, the LED long-afterglow composite luminous strip lens is generally provided with the plugs) are also arranged at two ends of the LED long-afterglow composite luminous strip lens. The plug (4) can be integrally formed with the lens body structure (1), for example, by adopting an injection molding process; or the lens body structure (1) and the plug (4) can be secondarily combined into an integral structure, for example, the lens body structure (1) adopts the molding process of extrusion and the like, and then the plug (4) is secondarily installed at the two ends of the lens body structure (1).

Further, the LED long afterglow composite light emitting strip lens comprises a straight middle light distribution optical main body part (11) which extends along the vertical direction with the same cross section shape and is in a straight line shape, the bottom of the lighting part of the middle light distribution optical main body part (11) is provided with a straight line shape accommodating groove (1A) which is concave inwards, has a downward opening and can accommodate the strip LED, the corresponding light incoming surface (1A) and light outgoing surface (1f) are cylindrical surfaces, an optical structure which has the function of a secondary light distribution strip (column) lens along the vertical cross section of the extending direction of the accommodating groove (1A) is formed between the straight middle light distribution optical main body part and the straight line shape accommodating groove, two sides of the middle light distribution optical main body part (11) are provided with side wall parts (12) which are connected with the middle light distribution optical main body part (11) (generally parallel to the extending direction of the accommodating groove (1A)), and the straight line shape accommodating groove (1A, preferably extruded or injection molded or compression molded), and the long-afterglow luminescent molded body (2) is combined on the inner wall of the linear accommodating groove (1B) in a liquid state curing mode or a molten state curing mode in a whole section or in a subsection mode through the transparent light guide medium (3) to form the linear LED long-afterglow composite luminescent lens with the linear long-afterglow luminescent molded body which is arranged in parallel with the linear accommodating groove (1A). And preferably, extrusion (including co-extrusion and other forming modes) or injection (including secondary encapsulation and injection and other forming modes) and other forming processes.

Furthermore, the LED long afterglow composite luminous strip lens comprises a middle light distribution optical main body part (11) which extends along the non-vertical direction (or deflects with a certain angle) in the same cross section shape to form a curve or a fold line shape and extends along the curve or the fold line to form a certain non-closed shape or a closed shape (fold line or/and curve, head-to-tail connection), the bottom of the lighting part of the middle light distribution optical main body part (11) is provided with an inward concave curve or fold line-shaped accommodating groove (1A) with a downward opening and capable of accommodating the strip LED, an optical structure with the function of a secondary light distribution strip lens along the vertical cross section of the extending direction of the accommodating groove (1A) is formed between the corresponding light incident surface (1A) and the light emergent surface (1f), two sides of the middle light distribution optical main body part (11) are provided with side wall parts (12) connected with the middle light distribution optical main, a curve or zigzag-shaped containing groove (1B) which is arranged in parallel with the containing groove (1A) is arranged between the middle light distribution optical main body part (11) and the side wall part (12), and the long afterglow luminescent forming body (2) is integrally or sectionally combined on the inner wall of the curve or zigzag-shaped containing groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode to form a curve or zigzag LED long afterglow composite luminescent lens. Preferably by injection molding.

Furthermore, the LED long afterglow composite luminous strip lens comprises a plurality of strip-shaped extending middle light distribution optical main body parts (11) which are arranged in parallel, wherein the accommodating grooves (1A) and the accommodating grooves (1B) are arranged in parallel with the middle light distribution optical main body parts (11), and the long afterglow luminous forming bodies (2) are combined on the inner wall of the accommodating groove (1B) in a liquid state solidification mode or a molten state solidification mode through the transparent light guide medium (3) to form corresponding strips.

Further, the light incident surface (1a) and the light emitting surface (1f) form a cylindrical lens or a partial cylindrical lens, a non-cylindrical lens or a partial non-cylindrical lens, a total reflection lens or a partial total reflection lens, a prism or a partial prism, or an optical structure of a combination of two or more of the above (for convenience of description, collectively referred to as a lens).

Furthermore, the inner wall of the accommodating groove (1A) of the lens body structure (1) is a light incident surface (1A); the top wall of the accommodating groove (1A) is a top wall light incident surface (1A1) (upward light incident surface), the side wall of the accommodating groove (1A) is a side wall light incident surface (1A2) (lateral light incident surface), and the top wall light incident surface (1A1) and the side wall light incident surface (1A2) are connected into a whole.

Furthermore, the top light-emitting surface (1f1) of the light-emitting part of the lens body structure (1) or/and the outer side surface of the side wall part (12) connected with the light-emitting part are light-emitting surfaces (1 f); the top light-emitting surface (1f1) of the light-emitting part is a top light-emitting surface (1f1), the outer side surface of the side wall part (12) is a side light-emitting surface (1f2), and the top light-emitting surface (1f1) and the side light-emitting surface (1f2) are connected into a whole; or, the top light-emitting surface (1f1) of the light-emitting part is a top light-emitting surface (1f1), the outer side surface of the side wall part (12) is a side light-emitting surface (1f2), the top light-emitting surface (1f1) and the side light-emitting surface (1f2) are connected into a whole, and a transition surface (1f3) (generally a curve fitting surface, preferably an arc surface) is further arranged between the top light-emitting surface (1f1) and the side light-emitting surface (1f2) so as to facilitate the light-emitting effect and enlarge the light-emitting angle.

Furthermore, an optical structure which is provided with a convex lens or a local convex lens or a similar convex lens with a thick middle periphery or a similar convex lens with a thin local middle periphery and a thick middle periphery and meets the function of condensing and emitting (vertical direct lighting) at least part of light of the strip-shaped LED in the accommodating groove (1A) along the vertical section of the extending direction of the accommodating groove (1A) is formed between the light inlet surface (1A) and the light outlet surface (1f), or a coated reflecting layer with the function of condensing light along the vertical section of the extending direction of the accommodating groove (1A) is arranged below the lighting part;

the lens can enable light emitted by the strip-shaped LED to enter from the light inlet surface (1A) when being electrified, wherein a part of the light passes through the lens body and then keeps the original spectral characteristic to be condensed and emitted along the vertical section of the extension direction of the accommodating groove (1A), a part of the light is directly transmitted to the long afterglow luminous forming body (2) through the transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode and excites the long afterglow luminous forming body (2) to emit light, the light emitted by the power-off long afterglow luminous forming body (2) passes through the transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode and passes through the light guide coupling surface (1e) to emit light outwards from the light outlet surface (1f), and the high afterglow brightness of the light can be kept.

Preferably, the middle parts of the light incident surface (1a) and the light emitting surface (1f) are mutually plane and convex free light condensing curved surfaces, or mutually biconvex free light condensing curved surfaces, or the light emitting surface (1f) is provided with a convex free light condensing curved surface, or the top wall light incident surface (1a1) is a convex free light condensing curved surface.

Preferably, the lighting part protrudes downwards, the bottom surface (1b) of the lighting part at the bottom of the lighting part extends outwards and upwards to form an outer side surface, and at least a total reflection (TIR) surface (1c) meeting the condition that partial incident light emitted by the strip-shaped LED in or below the accommodating groove (1A) generates total reflection (TIR) towards the upper part or the side upper part of the inside of the lens along a vertical section of the extending direction of the accommodating groove (1A) is formed on the outer side surface close to the bottom surface (1b) of the lighting part; therefore, the light-condensing and reflecting function of the long-afterglow luminescent molded body (2) along the vertical section of the extension direction of the accommodating groove (1A) and the light-condensing and reflecting function of the long-afterglow luminescent molded body (2) along the vertical section of the extension direction of the accommodating groove (1A) are combined, and the long-afterglow luminescent molded body (2) has a superimposed luminescent effect on the vertical section of the extension direction of the accommodating groove (1A).

Further, an optical microstructure is arranged on the TIR total reflection surface (1c), and the optical microstructure is a microstructure prism unit array or a microstructure lens unit array (such as a scaly optical array structure or a patterned optical array structure or a compound eye optical array structure or a microprism reflective array structure).

Further, a TIR structure with two or more levels is arranged on the TIR total reflection surface (1 c); or a TIR total reflection surface (1c) is provided with two or more than two TIR structures, a strip-shaped holding groove (1B) is arranged between the two adjacent TIR structures, and the inner wall of the strip-shaped holding groove (1B) is combined with a strip-shaped long afterglow luminous forming body (2) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode.

Furthermore, an optical structure which is provided with a concave lens or a local concave lens or a similar concave lens with a thin middle and a thick periphery and meets the function of leading at least part of light of the strip-shaped LED in the accommodating groove (1A) to diverge and emit (emit light laterally) away from the light-emitting main shaft along the vertical section of the extending direction of the accommodating groove (1A) is formed between the light-in surface (1A) and the light-out surface (1f),

the lens can enable light emitted by the strip-shaped LED to enter from the light inlet surface (1A) when being electrified, wherein a part of the light passes through the lens body and keeps the original spectral characteristic to be diverged and emitted along the vertical section of the extension direction of the accommodating groove (1A) and is far away from the light-emitting main shaft, a part of the light is directly transmitted to the long afterglow light-emitting forming body (2) and excites the long afterglow light-emitting forming body (2) to emit light in a liquid curing mode or a molten state curing mode through the transparent light guide medium (3), and the light emitted by the power-off long afterglow light-emitting forming body (2) passes through the light guide coupling surface (1e) through the transparent light guide medium (3) in a liquid curing mode or a molten state curing mode to emit light outwards from the light outlet surface (1 f).

Furthermore, the middle parts of the light incident surface (1a) and the light emitting surface (1f) are mutually plane and concave divergent free-form surfaces, or mutually double concave divergent free-form surfaces, or the light emitting surface (1f) corresponding to the upper part of the light incident surface (1a) is a free-form surface with a concave center.

Furthermore, the curvature of the top wall light incident surface (1a1) is greater than that of the side wall light incident surface (1a2), and the curvature of the top wall light incident surface (1a1) is greater than that of the corresponding top light emergent surface (1f 1); or the cross section of the side wall where the side light-emitting surface (1f2) or the transition surface (1f3) is located is in a shape with a narrow top and a wide bottom (similar to the refraction of a strip prism), so that the light can be emitted towards two sides; or the top wall light incident surface (1a1) is convex downwards, and the lower convex body is provided with a scattering microstructure.

Furthermore, the light-emitting surface (1f) is provided with an optical structure (which can be refracted or reflected once or more times) which can enable part of light of the strip-shaped LED in the accommodating groove (1A) to meet the condition of total reflection towards the lower part or the lateral lower part inside the lens, so that part of light can pass through the combined surfaces (1e1, 1e2 and 1e3 light-guiding coupling surfaces) of the long-afterglow light-emitting formed body (2) and the accommodating groove (1B) to excite the long-afterglow light-emitting formed body to emit light.

Preferably, the light-emitting part protrudes upwards, a strip-shaped light-collecting part which is connected with the light-emitting part and is parallel to the accommodating groove (1A) is correspondingly arranged below the upward protruding part of the light-emitting part, the center of the bottom of the light-collecting part is provided with the accommodating groove (1A) which is concave upwards and is provided with a downward opening and is used for accommodating the strip-shaped LED, and strip-shaped accommodating grooves (1B) which are concave upwards, are parallel to the accommodating groove (1A), are open downwards and are used for accommodating the strip-shaped long afterglow luminous forming body (2) are arranged on two sides of the bottom of the light-collecting part; the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode;

the curvature of the top wall light incident surface (1A1) is larger than that of the light emergent surface (1f) corresponding to the light emergent part, and an optical structure which enables at least part of light of the strip-shaped LED to be divergently emitted (emitted laterally or horizontally) along the vertical section of the extension direction of the accommodating groove (1A) and away from the light emitting main shaft is formed between the light incident surface (1A) and the light emergent surface (1 f);

the lens can enable light emitted by the strip-shaped LED to enter from the light incident surface (1A) when being electrified, wherein part of the light enters from the top wall light incident surface (1A1) and then keeps the original light spectrum to be diverged and emitted away from a light emitting main shaft along the vertical section of the extension direction of the accommodating groove (1A), part of the light is directly transmitted to the long afterglow light emitting forming body (2) through the transparent light guide medium (3) in a liquid curing mode or a molten curing mode and excites the long afterglow light emitting forming body (2) to emit light, and the light emitted by the power-off long afterglow light emitting forming body (2) passes through the transparent light guide medium (3) and the light guide coupling surface (1e) in a liquid curing mode or a molten curing mode to emit light outwards, so that the high afterglow brightness can be kept.

Preferably, the light-emitting part protrudes upwards, a strip-shaped light-emitting part which is connected with the light-emitting part and is parallel to the accommodating groove (1A) is correspondingly arranged below the upper protruding part of the light-emitting part, the center of the bottom of the light-emitting part is provided with an upwards-concave strip-shaped accommodating groove (1A) with a downward opening and used for accommodating a strip-shaped LED, and the strip-shaped long afterglow luminous forming body (2) is combined on the top wall of the accommodating groove (1A) in a liquid curing mode or a molten curing mode through a transparent light guide medium (3);

the curvature of the top wall light incident surface (1A1) is larger than that of the light emergent surface (1f) corresponding to the light emergent part, an optical structure which enables at least part of light of the strip-shaped LED to be divergently emitted (emitted laterally or horizontally) along the vertical section of the extension direction of the accommodating groove (1A) and away from the light emitting main shaft is formed between the light incident surface (1A) and the light emergent surface (1f), and the side wall of the lens body structure (1) is thin at the top and thick at the bottom;

the lens can enable light emitted by the strip-shaped LED to enter from the light incident surface (1A) when being electrified, wherein part of the light can keep the original vertical section of the light spectrum vertical to the extending direction of the accommodating groove (1A) to be emitted and emitted away from a light emitting main shaft after entering from the light incident surface (1A2) of the side wall, part of the light is directly emitted or passes through the lens body and can be transmitted to the long afterglow light emitting forming body (2) through the transparent light guide medium (3) in a liquid curing mode or a molten curing mode and excite the long afterglow light emitting forming body (2) to emit light, at least part of the light emitted by the long afterglow light emitting forming body (2) during power failure passes through the transparent light guide medium (3) in a liquid curing mode or a molten curing mode and passes through the light guide coupling surface (1e) to emit light outwards, and the light can keep.

Furthermore, an optical microstructure is arranged on the light incident surface (1a) or the bottom surface (1b) of the light collecting part at the bottom of the light collecting part or the outer side surface or the light emergent surface (1f) of the light collecting part, and the optical microstructure is a microstructure prism unit array or a microstructure lens unit array (such as a squama optical array structure or a pattern optical array structure or a compound eye optical array structure or a microprism reflective array structure, so as to increase the effects of light diffusion, reflection, refraction, light equalization and the like: 1. the strip-shaped LED light-emitting device has the advantages that the strip-shaped LED light-emitting device has the light distribution effect of light field distribution, 2, when the strip-shaped LED light-emitting device emits light with long afterglow, the light-emitting outline brightening effect is formed on the light-entering surface (1a), the bottom surface (1b) of a light-collecting part or the light-emitting surface (1f), 3, the view field is enlarged, the light-emitting visual effect of the long afterglow is better, 4, the strip-shaped LED light-emitting device has the light reflecting effect on external incident light and; or; or a plurality of cutting surfaces (similar to diamond cutting surfaces) or prism stripes are arranged on the light incident surface (1a) or the outer side surface or the light emergent surface (1f) of the lighting part so as to increase the refraction or reflection effect; or the lens body structure (1) is provided with a light diffusion microstructure or a light equalizing microstructure, so that the strip-shaped LED can be prevented from emitting light and dazzling; or a reflecting layer, preferably a film-coated reflecting layer, is arranged on the bottom surface of the lighting part or the bottom surface of the peripheral part of the lens body structure (1) to increase the effect of the afterglow of the long-afterglow luminous body to emit light outwards, thereby further brightening the light.

Furthermore, a microprism reflecting structure is arranged on the outer side part or the outer periphery (outer extension part or outer extension part) of the middle light distribution optical main body part (11), or a microprism reflecting structure is arranged on the side part or the side periphery of the side wall part (12).

Preferably, the top light-emitting surface (1f1) of the light-emitting part of the lens body structure (1) is a plane or a convex surface, the lighting part is a downward-protruding strip-shaped structure with a large upper part and a small lower part and an inverted trapezoid or similar inverted trapezoid cross section, the top wall light-incident surface (1A1) is a plane or a convex surface or a concave surface, a light-condensing structure or a diverging structure with a vertical cross section along the extension direction of the accommodating groove (1A) is formed between the light-incident surface (1A) and the corresponding light-emitting surface (1f), a strip-shaped accommodating groove (1B) parallel to the accommodating groove (1A) is formed between the outer side surface of the lighting part and the inner side surface of the side wall part (12), and the inner wall of the accommodating groove (1B) is combined with the strip-shaped long-afterglow light-emitting molded; the lens body structure (1) and the long afterglow luminescent forming body (2) are combined into the LED long afterglow composite luminescent strip lens which can enable part of light emitted by the strip LED to be condensed and emitted or diverged and emitted along the vertical section of the extension direction of the accommodating groove (1A) according to the original spectrum and has the afterglow luminescent function through the transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode.

Preferably, as shown in fig. 2, the top surface of the light-emitting portion is a plane or an outward convex light-gathering free-form surface, the light-gathering portion is a downward convex, large-top and small-bottom strip-shaped structure with an inverted trapezoid-shaped or similar inverted trapezoid-shaped cross section, the bottom surface (1B) of the light-gathering portion at the bottom of the light-gathering portion extends outwards and upwards to form an outer side surface of the outward convex free-form surface, a total reflection surface (1c) which can enable part of incident light emitted by the strip-shaped LED in the accommodating groove (1A) to be subjected to total reflection (TIR) is formed at least on the outer side surface close to the bottom surface (1B) of the light-gathering portion, the top wall light-incident surface (1A1) is an outward convex light-gathering free-form surface, and a light-gathering structure which is perpendicular to the cross section along the extending direction of the accommodating groove (1A) is formed between the top light-emitting surface (1f1) and the top light-gathering portion and the side wall The long afterglow luminous forming body (2) is a forming body which is formed by pouring mixed slurry of long afterglow luminous powder and a liquid or molten state transparent mixed medium onto the inner wall of the accommodating groove (1B) to flow and solidify after the lens body structure (1) is turned over, and the height of the long afterglow luminous forming body (2) is generally larger than the width of the long afterglow luminous forming body.

The lens can enable light emitted by the strip-shaped LED to enter from the light inlet surface (1A) when the power is on, wherein a part of the light passes through the lens body and keeps the original light spectrum to be condensed and emitted along the vertical section of the extension direction of the accommodating groove (1A), a part of the light passes through the lens body and can be transmitted to the long afterglow light emitting forming body (2) through the transparent light guide medium (3) in a liquid curing mode or a molten state curing mode and excite the long afterglow light emitting forming body (2) to emit light, at least a part of the light emitted by the long afterglow light emitting forming body (2) passes through the transparent light guide medium (3) in a liquid curing mode or a molten state curing mode and passes through the light guide coupling surface (1e) to emit light outwards, and the high afterglow brightness of the light can be kept.

As shown in fig. 6 and 7, the lens can be combined with a strip-shaped LED light emitting device or the like to form a light emitting device.

As shown in fig. 8, the lens units may be arranged in a certain regular pattern (e.g., parallel arrangement) to form a lens array, as shown in fig. 9, having the above-mentioned light splitting and distributing functions, and as shown in fig. 10, the lens array may be combined with LED light emitting devices to form a light emitting device.

Preferably, as shown in fig. 11, the top of the light-emitting portion is integrally raised, the top surface of the light-emitting portion is depressed, or the top surface of the light-emitting portion is a convex free-form surface with a flat surface or a small curvature, the light-collecting portion is a strip-shaped structure with an inverted trapezoid or similar inverted trapezoid cross section, the top wall light-incident surface (1A1) is a concave free-form surface with a large curvature, and a vertical cross section far from the light-emitting main shaft diverging structure along the extension direction of the accommodating groove (1A) is formed between the top wall light-incident surface and the corresponding top light-emitting surface (1f1), a strip-shaped accommodating groove (1B) (which can be arranged on both sides or on one side) is arranged between the light-collecting portion and the side wall portion (12), as shown in fig. 20, so as desired, and having different requirements on the side points for drivers and pedestrians, a strip-shaped long-afterglow light-emitting molded body (2) is combined on the, the long afterglow luminous forming body (2) is formed by pouring mixed slurry of long afterglow luminous powder and a liquid or molten state transparent mixed medium onto the inner wall of the accommodating groove (1B) after the lens body structure (1) is turned over, leveling and curing, and the width of the long afterglow luminous forming body (2) is generally larger than the height of the long afterglow luminous forming body;

as shown in FIG. 12, the LED long persistence composite light-emitting strip lens enables the light emitted by the strip LED to enter from the top wall light incident surface (1a1) or the side wall light incident surface (1a2), wherein, a part of light keeps the original luminescence spectrum to be dispersed away from the luminescence axis along the vertical section of the extension direction of the accommodating groove (1A) and is emitted laterally after passing through the lens body, a part of light can be transmitted to the long afterglow luminescence forming body (2) through the transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode and excites the long afterglow luminescence forming body (2) to emit light, at least a part of light emitted by the power-off long afterglow luminescence forming body (2) passes through the transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode and passes through the light guide coupling surface (1e) to emit light outwards from the light emitting surface (1f), and the high afterglow brightness can be kept.

As shown in fig. 13, the lens may be combined with an LED light emitting device or the like to form a light emitting device.

Preferably, as shown in fig. 14, the top light-emitting surface (1f1) of the light-emitting portion of the lens body structure (1) is an outward convex arc surface with a smaller curvature, the top wall light-entering surface (1A1) is an inward concave arc surface with a larger curvature, a divergent structure is formed between the two surfaces, the side wall of the lens body structure (1) is thin at the top and thick at the bottom, the bottom of the light-emitting portion can be provided with grooves or reflective lines, and the top wall of the accommodating groove (1A) is combined with the strip-shaped long-afterglow light-emitting molded body (2) through the transparent light-guiding medium (3) in a liquid state curing manner or a; the long afterglow luminescent forming body (2) is a forming body which is poured into a holding tank (1A) for horizontal solidification after the lens body structure (1) is turned over and liquid mixed slurry of long afterglow luminescent powder and a liquid or molten state transparent mixed medium is poured;

as shown in fig. 15 and 16, the LED long afterglow composite light emitting strip lens can make a part of light emitted by a strip LED enter from the side wall light incident surface (1A2), keep the original spectrum after passing through the lens body and diverge and exit (laterally or horizontally exit) along the vertical section of the extension direction of the accommodating groove (1A) away from the light emitting main shaft, a part of the light upwards enters the long afterglow light emitting forming body (2) and excites the long afterglow light emitting forming body (2) to emit light, at least a part of the light emitted by the power-off long afterglow light emitting forming body (2) passes through the light guide coupling surface (1e) through the transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode to emit light from the light emitting surface (1f) and make the light emit light with high brightness. The lens can be combined with an LED light-emitting component and the like to form a light-emitting device.

As shown in fig. 17, the lens units may be arranged in a certain rule to form a lens array module, as shown in fig. 18, having the above-mentioned light splitting and distributing functions, and as shown in fig. 19, the lens array may be combined with LED light emitting devices to form light emitting devices.

Preferably, the light emitting portion of the middle light distribution optical main body portion (11) protrudes upwards, a strip-shaped accommodating groove (1A) into which light rays of the linear light source can be incident is arranged in the center of the bottom of the middle light distribution optical main body portion (11), a top wall light incident surface (1A1) of the strip-shaped accommodating groove (1A) is a plane, a top light emitting surface (1f1) is a plane, and a shape (similar to strip prism refraction) with a narrow upper portion and a wide lower portion in cross section is formed between the side wall light incident surface (1A2) and the side light emitting surface (1f2) or the transition surface (1f3) so as to facilitate emission to the.

When the strip-shaped LED (5) emits light, the light is mainly divided into two paths. The first path directly irradiates on the long afterglow luminescent forming body (2) at the top of the accommodating groove (1A), and light emitted by the long afterglow luminescent forming body (2) is scattered and emitted from a light emitting surface (1f) after passing through a lens; the light rays of the second path are incident on the side wall light incident surface (1a2), are refracted by the side wall, are displaced upwards and are emitted towards the side direction (horizontally emitted).

Further, as shown in fig. 6 and 7, a bar-shaped LED (5), a circuit board layer (6) and a packaging layer (7) thereof are correspondingly arranged in the containing groove (1A) of the LED long afterglow composite light emitting bar lens or below the containing groove (1A), the circuit board layer (6) is arranged at the bottom of the LED long afterglow composite light emitting bar lens through packaging glue or a fit structure or a fastening structure and forms a sealed air layer with the inner wall of the LED long afterglow composite light emitting bar lens, the bar-shaped LED (5) is arranged in the air layer without contacting with the containing groove (1A), the circuit board layer (6) is further connected with an external electrical connecting wire or a connecting port (8), and the packaging layer (7) is arranged below the circuit board layer (6) to package each element into an illuminant integrally formed with the LED lens structure; or a transparent light guide medium (3) layer is arranged between the circuit board layer (6) and the inner wall of the LED long afterglow composite luminescent lens, and the strip-shaped LED (5) is fixed in the accommodating groove (1A) in a liquid state solidification mode or a molten state solidification mode through the transparent light guide medium (3).

Furthermore, a reflecting layer (preferably a film coating layer) or a reflector (preferably a reflecting cup or a reflecting cup array) is arranged on the circuit board layer (6) so as to be beneficial to improving the luminous efficiency of the strip-shaped LED and the luminous efficiency of the long afterglow luminous body.

Further, a second light distribution LED (a strip LED (5) which is arranged in the accommodating groove (1A) or below the accommodating groove (1A) and used for exciting the long-afterglow light-emitting forming body (2) to emit light is also arranged between the middle light distribution optical main body part (11) and the side wall part (12) of the LED long-afterglow composite light-emitting strip lens, and can be called a first light distribution LED, so that the effect of brightening is achieved or the effect of multi-color light emission is achieved.

Furthermore, a containing groove capable of containing the strip-shaped LED is further arranged below the long afterglow luminous forming body (2) on the inner wall of the containing groove (1B), and the strip-shaped LED (5) is arranged in the containing groove.

Preferably, the strip LED (5) is a strip LED light source with the wavelength range of the light emission spectrum in the wavelength range of the excitation spectrum of the long afterglow light emitting molded body (2) or the wavelength range of the light emission spectrum of the long afterglow light emitting molded body (2) intersecting or overlapping or covering, or a bar-shaped LED which at least comprises more than two light-emitting diodes and respectively has mixed light of two or more than two main light-emitting wavelengths, or a visible light strip-shaped LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous forming body (2), or a plurality of RGB LEDs which are integrally packaged, or a plurality of RGBW LEDs which are integrally packaged, or a plurality of integrally packaged RGB UV LEDs, or a plurality of integrally packaged RG UV LEDs, or a COB-packaged bi-color or multi-color bar LED luminous body.

Furthermore, the circuit board layer (6) is also connected with an external connecting wire or an electrode or a control circuit; or a bottom support or a bottom plate is arranged below the circuit board layer (6) and is used for packaging, protecting, radiating, installing or fixing; or a bottom support or a chassis or a bracket is arranged below the circuit board layer (6) and is used for packaging, protecting, radiating, installing or fixing. The LED lens can be directly packaged by a bottom support or a chassis through secondary injection molding and the like, or the bottom support or the chassis or a bracket is fixed at the bottom of the packaged LED lens for installation and fixation.

Furthermore, a retro-reflective material or a retro-reflective structure is further arranged on the light emitting device with the LED long afterglow composite light emitting strip-shaped lens structure, the retro-reflective material is preferably a lattice type retro-reflective material, and the retro-reflective structure is preferably a micro-prism type retro-reflective structure.

Further, the strip-shaped LED (5) is controlled to emit light in a stroboscopic mode at a certain period and duty ratio and excites the long-afterglow light-emitting forming body (2) to emit light, and the light-emitting device containing the LED long-afterglow composite light-emitting strip-shaped lens structure is a light-emitting device controlled in a stroboscopic light-emitting mode; or the strip-shaped LED (5) is two or more LEDs, is controlled to emit light according to a certain period and duty ratio and time sequence and excites the long-afterglow light-emitting forming body (2) to emit light, and the light-emitting device containing the LED long-afterglow composite light-emitting strip-shaped lens structure is a light-emitting device controlled in a time sequence light-emitting mode; or the strip-shaped LED (5) is also connected with an energy storage element; or the strip-shaped LED (5) is also connected with a solar photovoltaic device, and the light-emitting device containing the LED long afterglow composite light-emitting strip-shaped lens structure is a light-emitting device powered by solar energy.

Lens body structure (1):

the lens body structure (1) can be made of organic materials or a combination of organic materials and inorganic materials as required, can be fully transparent or partially transparent, preferably transparent PC, PMMA or transparent epoxy resin, adopts the forming processes of extrusion, injection molding or die pressing and the like, mainly plays the roles of light transmission, light distribution, protection, support, coating, accommodation, fixation, circuit connection, installation and the like, and can distribute the light energy proportion of the emergent light part of the LED luminous body and the exciting light part for exciting long-afterglow luminescence and the secondary light field light distribution function of the emergent light according to the design requirement. Long afterglow luminescent molded article (2):

the long afterglow luminescent forming body (2) is a solidified forming body formed by mixing long afterglow luminescent powder and a liquid or molten transparent mixed medium and then carrying out heating solidification or reaction solidification or processes such as injection molding or mould pressing and the like; wherein the long afterglow luminescent powder is an energy storage luminescent material, and preferably selects rare earth-doped alkaline earth aluminate or silicate with good luminescent property, such as blue-green light-emitting Sr₄Al₁₄O₂₅Or yellow-green light SrAl₂O₄Or mixing the two according to a certain proportion.

The long afterglow luminous forming body (2) can be formed in advance and is combined in a cavity of the lens body structure (1) in a liquid state curing mode or a molten state curing mode through the transparent light guide medium (3); or can be directly poured into the cavity of the lens body structure (1) for solidification molding by mixing the long afterglow luminescent powder and the liquid or molten state transparent mixed medium,

the transparent light guide medium (3) and the light-transmitting mixed medium:

the transparent light guide medium (3) mainly serves as a light guide medium or is mainly a light guide glue, can be used for bonding and fixing various materials or components, and plays a role in guiding light. Such as for bonding between the long-lasting phosphor molded body (2) and the lens body structure (1).

The transparent mixed medium mainly serves as a curing and forming medium mixed with the luminescent powder, and is a transparent or transparent organic medium or inorganic medium which can be in a liquid state or a molten state under certain conditions, can be mixed with solid powder and can be cured and formed under certain conditions [ generally, a mixture. Some are liquid and some are solid at normal temperature. The transparent light-guiding medium (3) in a solid state or a molten state can be changed into a liquid state or a molten state by heating or the like. The transparent adhesive is generally a liquid transparent adhesive, or a liquid or solid transparent resin, and includes a main material and its related auxiliary agents (curing agent, accelerator, fluxing agent, dissolving solution, stabilizer, dispersant, thickener, antioxidant, leveling agent, defoaming agent, etc.), wherein the main material of the organic medium is generally epoxy resin, silica gel resin, polyurethane resin, PVC resin, PET resin, acrylic resin, fluorocarbon resin, etc., and the main material of the inorganic medium is generally glass, quartz, etc.).

The transparent light guide medium (3) and the light-transmitting mixed medium may be made of the same material and may be used instead of each other, or may be made of different materials and may not be used instead of each other. For example: when the long-afterglow luminous forming body adopts a liquid pouring process, the light-transmitting mixed medium serves as a transparent light guide medium (3), the two are made of the same material, when the long-afterglow luminous forming body adopts processes such as injection molding, the light-transmitting mixed medium is a curing forming medium mixed with the luminous powder, the transparent light guide medium (3) can adopt different transparent light guide glue, for example, the light-transmitting mixed medium is a transparent PMMA or PC material, the transparent light guide medium (3) can adopt a transparent epoxy material, and the two materials are different.

Plug (4):

sometimes called as end head, end socket, cover head, etc., and is combined on two ends of the LED long afterglow composite luminous strip lens through a fitting structure or a fastening structure or packaging glue, so as to play the roles of packaging, water proofing, convenient pouring of liquid long afterglow mixed slurry, etc., and a threading hole can be arranged on the LED long afterglow composite luminous strip lens, so as to be convenient for being electrically connected with the outside.

Strip-shaped LED (5):

the strip-shaped LED (5) is a linear array LED or an LED lamp strip formed by a plurality of LEDs or LED units, is a strip-shaped LED light source with the wavelength range of the luminous spectrum in the wavelength range of the excitation spectrum of the long-afterglow luminous forming body (2) or crossed or overlapped or covered with the wavelength range of the excitation spectrum of the long-afterglow luminous forming body (2), or a bar-shaped LED which at least comprises more than two light-emitting diodes and respectively has mixed light of two or more than two main light-emitting wavelengths, or a visible light strip-shaped LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous forming body (2), or an integrally packaged RGB strip-shaped LED luminous body, an RGBW strip-shaped LED luminous body or an RGB UV strip-shaped LED luminous body or an RG UV strip-shaped LED luminous body, or a COB-packaged double-color or multi-color strip-shaped LED luminous body can be a surface-mounted LED or a direct-insertion LED arranged in a linear array and welded on the strip-shaped circuit board.

Circuit board layer (6):

the circuit board layer (6) can be a flexible or rigid circuit board and can be connected with external connecting wires or electrodes or a control circuit.

At its simplest, the circuit board layer (6) may act as an encapsulation layer (7).

The LED long afterglow composite luminous strip lens and the luminous equipment containing the LED long afterglow composite luminous strip lens structure have the main advantages that:

1. the ratio of the light energy of the emergent light part of the LED luminous body to the light energy of the exciting light part for exciting the long afterglow luminescence can be distributed according to the design requirement, so that the long afterglow can be fully excited, the supersaturation of the exciting light energy of the long afterglow luminous body can be avoided as much as possible, and the unnecessary light energy waste is reduced;

2. the secondary light distribution function of the emergent light field can be realized, the bar-shaped LED can be emergent according to the design directivity of the preset light distribution, the long afterglow can be emitted in a non-directional scattering mode according to the design directivity of the preset light distribution, and the negative influence on the original bar-shaped LED during the long afterglow emission can be reduced through the light field distribution of the emergent light.

3. Can maintain the original luminescence property (conventional luminescence properties such as luminescence wavelength, chromaticity or color temperature) of the LED luminescence device to the maximum extent, has afterglow luminescence function of high brightness, and can emit light in multiple colors.

4. Because the LED volume is relatively small, there will be large errors in light source distribution and arrangement of the long-afterglow luminous bodies. Thus, the light source is easily distributed unreasonably, which causes light energy waste and fails to achieve the original design purpose. If the long afterglow luminous body is arranged far away from the LED luminous body, although the error can be reduced, the long afterglow luminous body can not be excited fully because the excitation light illumination of the LED luminous body is reduced along with the distance, thereby not achieving the expected long afterglow luminous brightness effect. The lens body of the invention takes the long afterglow luminous body as a transmission carrier of a space carrier and a light path, so that the operation can be simplified and the matching error can be reduced by the ratio of the part of the long afterglow luminous body on the lens body where the light path passes and the light emitting area, for example, the lens body can realize accurate control by adjusting the height, the width, the depth and the like of the long afterglow luminous body, and can be well realized by means of simulation software such as Lighttols, solidwork, tracepro and the like.

5. The accommodating groove (1B) is strip-shaped, so that the long afterglow mixed slurry can be poured and leveled conveniently, and the manufacturing is simple; the lens and the long afterglow illuminant are integrated, so that the integration level is higher and the service performance is wider; the modular or standard component type can control the product performance quality, reduce the production cost and the use cost, facilitate the improvement of the production efficiency, facilitate the industrialization and promote the industry development.

Drawings

FIG. 1 is a schematic cross-sectional structure diagram of an LED long afterglow composite light-emitting strip lens with a TIR total reflection light-gathering structure;

FIG. 2 is a schematic light distribution diagram of an LED long afterglow composite light emitting strip lens with a TIR total reflection light gathering structure;

FIG. 3 is a schematic diagram of LED light energy distribution;

FIG. 4 is a schematic diagram of LED light energy distribution of an LED long afterglow composite light-emitting strip lens with a TIR total reflection light-gathering structure;

FIG. 5 is a schematic diagram of afterglow luminescence of an LED long afterglow composite luminescence strip lens with a TIR total reflection light-gathering structure;

FIG. 6 is a schematic cross-sectional three-dimensional structure of an LED long afterglow composite light-emitting strip lens with a TIR total reflection light-gathering structure and a light-emitting device combined with an LED;

FIG. 7 is a schematic cross-sectional structure diagram of a light emitting device with an LED long persistence composite light emitting strip lens having a TIR total reflection light gathering structure and incorporating an LED;

FIG. 8 is a schematic cross-sectional structure view of a multi-line array LED long afterglow composite light emitting strip lens module with a TIR total reflection light gathering structure;

FIG. 9 is a schematic light distribution diagram of a multi-line array LED long afterglow composite light emitting strip lens module with a TIR total reflection light gathering structure;

FIG. 10 is a schematic cross-sectional view of a multi-line array LED long afterglow composite light emitting strip lens module with a TIR total reflection light gathering structure and a light emitting device combined with an LED;

FIG. 11 is a schematic cross-sectional structure view of an LED long-afterglow composite light-emitting strip lens with a divergent structure;

FIG. 12 is a schematic light distribution diagram of an LED long afterglow composite light emitting strip lens with a divergent structure;

FIG. 13 is a schematic cross-sectional view of a light emitting device with a diverging structure LED long persistence composite light emitting strip lens in combination with an LED;

FIG. 14 is a schematic cross-sectional structure view of an LED long persistence composite light-emitting strip lens with a divergent structure;

FIG. 15 is a schematic light distribution diagram of an LED long afterglow composite light emitting strip lens with a divergent structure;

FIG. 16 is a schematic diagram of afterglow luminescence of an LED long afterglow composite luminescence strip lens with a divergent structure;

FIG. 17 is a schematic cross-sectional structure view of a multi-line array LED long-afterglow composite light-emitting strip lens module with a divergent structure;

fig. 18 is a schematic light distribution diagram of a multi-line array LED long-afterglow composite light-emitting strip lens module with a divergent structure;

FIG. 19 is a schematic cross-sectional view of a multi-line array LED long persistence composite light-emitting strip lens module with a divergent structure and a light-emitting device combined with an LED;

FIG. 20 is a schematic cross-sectional view and light distribution diagram of an LED long afterglow composite light-emitting strip lens with a divergent structure;

FIG. 21 is a schematic cross-sectional view and a light distribution diagram of an LED long afterglow composite light-emitting strip lens with a polarization structure;

FIG. 22 is a schematic cross-sectional perspective view of a light-emitting device incorporating an LED with a long-persistence composite light-emitting strip lens having a light-gathering structure according to an embodiment;

FIG. 23 is a schematic cross-sectional view of an LED long-afterglow composite light-emitting strip lens with a two-stage TIR total reflection surface light-gathering structure according to a first embodiment;

fig. 24 is a light distribution schematic diagram of an LED long-afterglow composite light-emitting strip lens with a two-stage TIR total reflection surface light-gathering structure according to the first embodiment;

FIG. 25 is a schematic cross-sectional view of a light-emitting device incorporating an LED long persistence composite light-emitting strip lens with a two-stage TIR total reflection surface light-gathering structure according to an embodiment;

fig. 26 is a schematic cross-sectional structure view of a multi-line array LED long-afterglow composite light-emitting strip lens module with a two-stage TIR total reflection surface light-gathering structure according to an embodiment;

fig. 27 is a schematic light distribution diagram of a multi-linear array LED long-afterglow composite light-emitting strip lens module with a two-stage TIR total reflection surface light-gathering structure according to an embodiment;

fig. 28 is a schematic cross-sectional structure view of a light-emitting device of a multi-linear array LED long-afterglow composite light-emitting strip lens module with a two-stage TIR total reflection surface light-gathering structure and combined with an LED according to an embodiment;

FIG. 29 is a schematic cross-sectional view of a long-afterglow composite light-emitting strip lens with a divergent structure according to a second embodiment;

fig. 30 is a schematic light distribution diagram of an LED long-afterglow composite light-emitting strip lens with a divergent structure according to a second embodiment;

fig. 31 is a schematic cross-sectional view of a light-emitting device in combination with an LED long-afterglow composite light-emitting strip lens having a divergent structure according to a second embodiment;

fig. 32 is a schematic cross-sectional structure view of a multi-line array LED long-afterglow composite light-emitting strip lens module with a divergent structure according to a second embodiment;

fig. 33 is a schematic light distribution diagram of a multi-linear array LED long-afterglow composite light-emitting strip lens module with a divergent structure according to a second embodiment;

fig. 34 is a schematic cross-sectional structure view of a lighting fixture in combination with an LED and a multi-linear array LED long-afterglow composite lighting strip lens with a divergent structure according to a second embodiment;

fig. 35 is a schematic cross-sectional structure view of an LED long-afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle exit structure according to a third embodiment;

fig. 36 is a schematic light distribution diagram of an LED long-afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle exit structure according to the third embodiment;

fig. 37 is a schematic cross-sectional structure view of an LED long-afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle exit structure and a light-emitting device combined with an LED according to a third embodiment;

FIG. 38 is a schematic perspective view of a strip lamp with a light-condensing structure and an LED long-afterglow composite light-emitting strip lens structure according to a fourth embodiment;

FIG. 39 is a schematic diagram of a top perspective view of a strip lamp with a light-condensing structure and an LED long-afterglow composite light-emitting strip lens structure according to a fourth embodiment;

fig. 40 is a schematic perspective structural view of a strip lamp with an LED long-afterglow composite light-emitting strip lens structure having a light-focusing structure according to a fourth embodiment;

FIG. 41 is a schematic sectional view of a strip-shaped lamp with a long-afterglow composite light-emitting strip-shaped lens structure of an LED according to a fourth embodiment;

FIG. 42 is a schematic diagram of a perspective structure of a strip lamp with a diverging structure and a LED long-afterglow composite light-emitting strip lens structure according to a fourth embodiment;

FIG. 43 is a schematic sectional view taken along line A1-A1 of a bar lamp with a diverging structure and a long-afterglow composite light-emitting bar lens structure of an LED according to a fourth embodiment;

FIG. 44 is a schematic diagram of a perspective structure of a strip lamp with a polarized light structure and an LED long-afterglow composite light-emitting strip lens structure according to a fourth embodiment;

FIG. 45 is a schematic sectional view taken along line A2-A2 of a bar lamp with a polarization structure and an LED long-afterglow composite light-emitting bar lens structure according to a fourth embodiment;

FIG. 46 is a schematic diagram of a perspective structure of a strip lamp with a polarizing structure and an LED long-afterglow composite light-emitting strip lens structure according to a fourth embodiment;

FIG. 47 is a schematic sectional view taken along line A3-A3 of a bar lamp with a polarization structure and an LED long-afterglow composite light-emitting bar lens structure according to a fourth embodiment;

FIG. 48 is a schematic bottom view of a lens of a modeling luminescent lamp with an LED long-afterglow composite luminescent strip lens structure having a light collecting structure according to a fifth embodiment;

FIG. 49 is a schematic diagram of a top perspective view of a modeling light-emitting lamp with a long-afterglow composite light-emitting strip lens structure of an LED having a light-focusing structure in accordance with the fifth embodiment;

FIG. 50 is a schematic sectional view taken along line A4-A4 of a modeled light-emitting lamp with a long-afterglow composite light-emitting strip lens structure of an LED having a light-focusing structure in accordance with example V;

FIG. 51 is a schematic bottom view of a lens of a modeling light-emitting lamp with a diverging structure and a LED long-afterglow composite light-emitting stripe lens structure in accordance with the fifth embodiment;

FIG. 52 is a schematic top perspective view of a modeling luminescent lamp with a diverging LED long persistence composite luminescent stripe lens structure in accordance with the fifth embodiment;

FIG. 53 is a schematic sectional view taken along line A5-A5 of a modeled light-emitting lamp with a diverging structure and a long-afterglow composite light-emitting strip lens structure of an embodiment V;

FIG. 54 is a schematic diagram of a top perspective view of a modeling luminescent lamp with a diverging structure LED long persistence composite luminescent stripe lens structure in accordance with the fifth embodiment;

fig. 55 is a schematic top perspective view of a signboard with a multi-line array LED long-afterglow composite light-emitting strip lens structure according to the sixth embodiment;

fig. 56 is a schematic front perspective structure view of the signboard with a multi-line array LED long-afterglow composite light-emitting strip lens structure in the sixth embodiment.

Fig. 57 is a schematic perspective structural view of a signboard with an LED long-afterglow composite light-emitting strip lens structure according to a sixth embodiment;

fig. 58 is a schematic top perspective view of a signboard with an LED long persistence composite light emitting stripe lens structure according to a sixth embodiment.

Detailed Description

Based on the spirit of the present invention, various embodiments can be formed according to various shapes and structures or by combination or arrangement according to actual needs, and the examples herein only exemplify a typical case of an LED long-afterglow composite light emitting strip lens and a lens module thereof, or a lamp housing or a device containing the lens structure and the lens module structure, and a light emitting device using the lens structure or the lamp housing and the strip LED, but are not limited to the examples herein, and the examples of the present invention are described below with reference to the accompanying drawings.

Example one

The first embodiment of the invention providesAn LED long afterglow composite luminous strip lens with a light gathering structure is disclosed, as shown in FIG. 22, comprising a lens body structure (110), wherein a central optical main body part is a strip structure with a gradually increasing size of a cross section from bottom to top, a holding tank (110A) capable of allowing strip light source light to irradiate is arranged in the center of the bottom of the central optical main body part, the inner wall of the holding tank (110A) is a parabolic cylinder, two sides of the lens body structure (110) are provided with a transparent surrounding edge which is connected with a middle light distribution optical main body part (1110), arranged in parallel along the middle light distribution optical main body part (1110), and turned downwards and serves as a side surrounding part (1120), a holding groove (110B) along the extending direction of the holding tank (110A) is arranged between the middle light distribution optical main body part (1110) and the side surrounding part (1120) (can be arranged on two sides or one side), and a long afterglow luminous molded body, long persistence luminescent powder (generally rare earth doped alkaline earth aluminate long persistence luminescent powder, such as SrAl emitting yellow green light)₂O₄Quasi-long persistence luminescent powder or Sr capable of emitting blue and green light₄Al₁₄O₂₅Quasi-long afterglow luminescent powder and the like) and a light guide medium (such as transparent epoxy resin and the like) are poured into the accommodating groove (110B) for flat curing and molding, and a transparent protective layer can be poured and leveled on the outer surface of the long afterglow luminescent molded body (120). The top surface light-emitting surface (110f1) of the lens body structure (110) is generally designed to be a plane, and the top surface light-emitting surface (110f1) can also be designed to be a convex cambered surface according to the requirement of special light-gathering degree, and an optical structure which can make at least part of light of the strip-shaped LED in the accommodating groove (110A) gather and emit along the vertical section of the extending direction of the accommodating groove (110A) is formed between the light-entering surface (110A) and the light-emitting surface (110f 1);

the lens can enable light emitted by the strip-shaped LED in the accommodating groove (110A) to enter from the light inlet surface (110A) when the lens is powered on, wherein a part of the light can be emitted from the top light outlet surface (110f1) after passing through the lens body, so that part of light rays can be condensed and emitted along the vertical section of the extending direction of the accommodating groove (110A) while the strip-shaped LED arranged in the accommodating groove (110A) emits light while maintaining the original spectral characteristics, and a part of light can be directly transmitted to the long afterglow light emitting molded body (120) through the liquid or molten transparent light guide medium (130) and can excite the long afterglow light emitting molded body (120) to emit light;

or after the lens body structure (110) is turned over, the liquid mixed slurry of the long-afterglow luminescent powder and the light guide medium is poured onto the inner wall (generally the top wall) of the accommodating groove (110A) to a certain depth (so that a part of the space of the accommodating groove (110A) is reserved for arranging the strip-shaped LED) and is molded by leveling and curing.

Further, the lens body structure (110) may be a bar-shaped hard lamp housing (hard lamp strip, generally corresponding to LED lamp strip below) formed by PC or PMA extrusion molding, or a bar-shaped soft lamp housing (soft lamp strip, generally corresponding to LED lamp strip below) formed by transparent silica gel, PU, PVC extrusion molding, or a lamp housing formed by acrylic or PC injection molding.

The transparent medium of the long afterglow luminescent forming body can be selected according to the material of the lens body as required: if the material of the lens body is flexible, the transparent medium of the long afterglow luminescent forming body can be selected to ensure that the cured long afterglow luminescent forming body is also flexible (bendable or bendable), which is beneficial to manufacturing various flexible luminescent devices; the transparent medium of the long-afterglow luminescent molded body may be selected so that the cured long-afterglow luminescent molded body is rigid.

Preferably, the light incident surface (110a), the light collecting bottom surface (110b) of the light emergent portion, and the light emergent surface (110f) are provided with optical microstructures, the optical microstructures are a microstructure prism unit array or a microstructure lens unit array (a scaly optical array structure or a patterned optical array structure or a fly eye optical array structure or a microprism reflective array structure), and at this time, the lens body structure (110) is generally formed by injection molding.

Preferably, the lens body structure (110) is further provided with a structural attachment (1130), the structural attachment (1130) is a limiting support structure (1131) connected with the lens body structure (110) and used for assembling the strip-shaped LED and the circuit board, or an expanded bottom edge or a chassis (1132) connected with the side wall portion (1120) (preferably the bottom portion) for installation and fixation, or a fastening structure (a screw hole, a nut, a socket or a plug) or a fitting structure (an inverted buckle or interference fit, etc.) or a waterproof sealing rubber ring structure or an outlet groove, or a positioning member (such as a positioning support, a positioning step, etc.) or a fitting structure at the bottom of the lighting portion, or a fitting structure or a fixing structure at the edge of the light outlet portion. The lens module has the effects of fitting (serving as an accessory, being convenient for being assembled or combined with other components), fixing (being convenient for being fixed with a bar-shaped LED, a circuit board and the like or being fixed with a base, a screw hole or a support and the like), packaging (being convenient for a waterproof structure with functions of glue pouring, a sealing ring, waterproofing (a circuit board or a wire) and the like) or installing (being installed and fixed as components or equipment in the later period) and the like, and the lens module is formed.

A circuit board (160) of a strip-shaped LED (150) is fixed at the bottom of the LED long-afterglow composite luminous strip-shaped lens through a positioning structure, a gap between the circuit board (160) and the LED long-afterglow composite luminous strip-shaped lens is sealed by packaging glue, the strip-shaped LED (150) is fixed in an air layer of the accommodating groove (110A), and the bottom of the air layer is sealed by the packaging glue to form the luminous module.

Preferably, the strip-shaped LED (150) can adopt different types or specifications of LEDs, such as strip-shaped light sources formed by arranging 5050 patch LEDs and the like, or strip-shaped light sources formed by connecting F5/F8 straw hat lamp beads or lumen-imitating lamp beads in series or in parallel, or COB-packaged LED strip-shaped light sources can be selected; the luminous color of the LED can be white according to requirements, so that long-afterglow luminescence can be effectively excited, high luminous brightness is achieved, a combination of red and blue can be selected, wherein the red light is condensed by a lens and then is emitted, a warning effect is mainly achieved, and the blue light is mainly used for exciting the long-afterglow luminescence.

Further, the bar-shaped LED (150) can be a bar-shaped LED composed of a plurality of integrally packaged RGB LEDs, or a bar-shaped LED composed of a plurality of integrally packaged RGBW LEDs, or a bar-shaped LED composed of a plurality of integrally packaged RGB UV LEDs, or a bar-shaped LED composed of a plurality of integrally packaged RG UV LEDs, or a bi-color or multi-color bar-shaped LED packaged by COB, and can meet the requirement of multi-color light emission.

Preferably, the middle light distribution optical main body part (1110) of the LED long afterglow composite light emitting strip lens extends in a straight strip shape; or the middle light distribution optical main body part (1110) of the LED long afterglow composite light emitting strip lens extends in a bent strip shape and is closed to form a ring shape, at the moment, the central part enclosed by the middle light distribution optical main body part (1110) 1 can be hollow, so that materials are saved; 2. a reverse reflector may be provided on the surface of the intermediate light distribution optical main body portion (1110) surrounding the central portion; 3. or the top surface of the central part surrounded by the middle light distribution optical main body part (1110) can be made into a connected light-transmitting plate, and LEDs with different light-emitting colors are arranged below the light-transmitting plate to realize the combined light-emitting function; 4. or a control circuit or a battery assembly is arranged in an inner cavity surrounded by the middle light distribution optical main body part (1110) to form a central part and is connected into a circuit by a lead to control the strip-shaped LED (150) to emit light at a certain regular rule (for example, stroboscopic light emission at a certain period and a certain duty ratio or dynamic light emission according to a time sequence); 5. the top surface of the central part surrounded by the middle light distribution optical main body part (1110) can be made into a connected light-transmitting plate, and a solar photovoltaic device and the like are arranged below the light-transmitting plate, so that the light-emitting function of solar power supply is achieved.

Optimized scheme, LED long afterglow composite luminous strip lens with secondary TIR total reflection surface light-gathering structure

As shown in fig. 23, secondary TIR total reflection surfaces (110C1), (110C2) are sequentially arranged on the outer side wall of the lighting part surrounding the accommodating groove (110A) from inside to outside, a first strip-shaped groove (110B1) is arranged between the first stage TIR total reflection surface (110C1) and the second stage TIR total reflection surface (110C2), two sides of the strip-shaped central optical main body part are downward-turned transparent surrounding edges as side wall parts (110B), a second strip-shaped groove (110B2) is arranged between the outer side wall of the lighting part and the inner side wall of the transparent surrounding edges, and after the lens body structure (110) is turned over, the long-afterglow luminescent body (120) is long-afterglow luminescent powder (generally rare earth doped alkaline earth aluminate long-afterglow luminescent powder, such as yellow-green-emitting SrAl₂O₄Quasi-long persistence luminescent powder or Sr capable of emitting blue and green light₄Al₁₄O₂₅The similar long afterglow luminescent powder) and the liquid mixed slurry of the light guide medium (130) (such as transparent epoxy resin) are respectively poured into the first accommodating groove (110B1) and the second accommodating groove (110B2) to be horizontally cured and molded to form a first long afterglow luminescent molded body (121) and a second long afterglow luminescent molded body (122), and the upper part of the lens body structure (110) is integrally molded.

Further, the first long afterglow luminescent molded body (121) and the second long afterglow luminescent molded body (122) may emit monochromatic light or may be combined with two-color light emission.

Preferably, a downward convex shining curve cambered surface is arranged on the inner wall of the top of the accommodating groove (110A).

Preferably, the first-stage TIR total reflection surface (110C1) is a spline curve extension arc surface or a cylindrical surface formed by coextending a plurality of tangent circular arcs.

When the lens is used for an LED light-emitting device, as shown in fig. 25, a strip-shaped LED (150) is arranged at the lower port of the accommodating groove (110A), preferably a linear array LED light source is fixed at the bottom of the LED long afterglow composite light-emitting strip-shaped lens through a positioning structure, a gap between the LED long afterglow composite light-emitting strip-shaped lens and the LED long afterglow composite light-emitting strip-shaped lens is sealed by packaging glue, and then the bottom of the LED long afterglow composite light-emitting strip-shaped lens is sealed; as shown in fig. 24, the light of the bar-shaped LED (150) is mainly divided into five paths: the first path of light directly irradiates the lower part of the inner side wall of the accommodating groove (110A), irradiates a first-stage TIR total reflection surface (110C1) after being refracted by the inner side wall of the accommodating groove (110A), and is reflected by the first-stage TIR total reflection surface (110C1) and then emitted from a light emitting surface (110f) of the lens; the second path of light directly irradiates the upper part of the inner top side wall of the accommodating groove (110A), irradiates the light-emitting surface (110f) of the lens after refraction, then a part of light penetrates through the light-emitting surface (110f) to be emitted upwards, a part of light is reflected to the light coupling surface which is positioned above and adjacent to the second-level TIR total reflection surface (110C2), is transmitted to the long afterglow luminescent forming body (122) in the accommodating groove (110B2) through the liquid or molten transparent light guide medium (130) and excites the long afterglow luminescent forming body (122) to emit light, a part of light is reflected to the second-level TIR total reflection surface (110C2), and penetrates through the light-emitting surface (110f) to be emitted upwards after reflection of the second-level TIR total reflection surface (110C 2); the third path of light rays directly irradiate on the shading arc surface at the top of the accommodating groove (110A), and are refracted by the shading arc surface and then directly emitted from the light emitting surface (110f) of the lens main body; the fourth path of light also directly irradiates on the shading arc surface at the top of the accommodating groove (110A), then is reflected to the upper part of the inner side wall of the accommodating groove (110A), then follows a path similar to the second path of light, and finally is emitted from the light emitting surface (110f) of the lens; the light of the fifth path directly irradiates the middle part of the inner side wall of the accommodating groove (110A), irradiates a light coupling surface which is positioned above the first stage TIR total reflection surface (110C1) and is adjacent to the first stage TIR total reflection surface after being refracted by the inner side wall of the accommodating groove (110A), is transmitted to the long afterglow luminous forming body (121) in the accommodating groove (110B1) through the liquid or molten transparent light guide medium (130), and excites the long afterglow luminous forming body (121) to emit light. The increase of shining line cambered surface reflectivity through shining the line processing can increase the quantity of fourth way light, and then improves the luminance of the light that lens play plain noodles edge jetted out, avoids light to concentrate on the center of light ring, is favorable to improving the quality of illumination. With the multi-stage reflection structure for realizing the second path of light and the fourth path of light, the lens can be made very thin under the condition that the diameter of the light emitting surface (110f) of the lens is not changed, and the weight of the lens is reduced.

As shown in fig. 26, the lens units may be arranged in a certain rule (e.g., a plurality of parallel straight bars) to form a lens array module, as shown in fig. 27, which has the above-mentioned light splitting and distributing functions, and as shown in fig. 28, the lens array may be combined with LED light emitting devices to form a light emitting device.

The LED long afterglow composite luminous strip lens with the light gathering structure has a strip LED light gathering function and a long afterglow luminous function, and can meet the side key point required by actual luminescence according to the light energy ratio of selectively distributing excitation light and emergent light; the LED light source can be used as a light distribution component or a light distribution assembly or a light emitting component or a light emitting assembly to be used for manufacturing various strip-shaped light emitting devices, can be used as a local structure to be combined with other optical components or light emitting assemblies to be used for designing and manufacturing various light emitting devices, assemblies or equipment, such as LED light bars, character or letter or symbol light emitting modules, multifunctional lamps, light emitting signboard, contour lamps or outline signs, floor lamps and the like, has conventional illumination purposes, has a long afterglow light emitting function and a wider application range.

Example two

The second embodiment of the invention provides an LED long afterglow composite luminous strip lens with a divergent structure, as shown in fig. 29, the lens comprises a lens body structure (210), the edge of the lens body structure (210) has an upturned transparent surrounding edge serving as a side wall portion (2120), the cross section of the central optical main body portion (2110) is in a raised arch shape, the bottom center of the central optical main body portion (2110) is provided with a receiving groove (210A) into which the light of the strip-shaped light source can enter, the top wall light incident surface (210A1) of the receiving groove (210A) is in an upwardly concave arc surface, and the curvature of the top wall light incident surface (210A1) is larger than that of the corresponding part of the light emergent surface (210f), an accommodating groove (210B) parallel to the accommodating groove (210A) is arranged between the middle light distribution optical main body part (2110) and the side wall part (2120), and the long afterglow luminescent forming body (220) is formed by pouring the long afterglow luminescent powder and liquid mixed slurry of the light guide medium into the accommodating groove (210B) for horizontal curing. The outer surface of the long afterglow luminous forming body (220) can also be cast and leveled with a transparent protective layer (230).

Furthermore, the radial section of the accommodating groove (210A) is circular, and the diameter of the section gradually decreases along the direction from the bottom surface to the top surface until the top end shrinks to be the top point of the accommodating groove (210A), and the side wall light incident surface (210A2), the top wall light incident surface (210A1) and the light emitting surface (210f) are mutually matched to adjust the light emitting angle.

Preferably, the bottom surface (210b) of the lighting part is provided with a light reflecting or diffusing structure.

When the invention is used for an LED light-emitting device, as shown in fig. 31, a strip LED (250) is arranged at the lower port of an accommodating groove (210A), preferably a linear array LED light source is fixed at the bottom of an LED long afterglow composite light-emitting strip lens through a positioning structure, a gap between the strip LED light source and the LED long afterglow composite light-emitting strip lens is sealed by packaging glue, and then the bottom of the strip LED light source is sealed by the packaging glue; the light of the bar LED (250) is mainly divided into three paths, as shown in fig. 30: the first path of light directly irradiates the lower part of the inner side wall of the accommodating groove (210A), irradiates a light coupling surface (210e1) after being refracted by the inner side wall of the accommodating groove (210A), is conducted to the long afterglow luminescent forming body (220) in the accommodating groove (210B) through the liquid or molten transparent light guide medium (230) and excites the long afterglow luminescent forming body (220) to emit light; the second path of light directly irradiates on the top wall light incident surface (210A1) of the accommodating groove (210A), and directly diverges and exits from the light emergent surface (210f) of the lens main body; the third path of light directly irradiates on the upper part of the inner side wall of the accommodating groove (210A), irradiates on the light-emitting surface (210f) of the lens after being refracted by the inner side wall of the accommodating groove (210A), then part of the light passes through the light-emitting surface (210f) and is emitted upwards, part of the light is reflected to the bottom surface (210B) of the lighting part, part of the light is irradiated on the light coupling surface (210e1) after being reflected by the bottom surface (210B) of the lighting part, and is transmitted to the long afterglow light emitting forming body (220) in the accommodating groove (210B) through the liquid or molten transparent light guide medium (230) and excites the long afterglow light emitting forming body (220) to emit light, and part of the light passes through the light-emitting surface (210 f).

As shown in fig. 32, the lens units may be arranged in a certain regular pattern (e.g., a plurality of parallel straight bars) to form a lens array module, as shown in fig. 33, which has the above-mentioned light splitting and distributing functions, and as shown in fig. 34, the lens array may be combined with LED light emitting devices to form a light emitting device.

The LED long afterglow composite luminous strip lens with the divergent structure has the strip LED divergent function and the long afterglow luminous function, and can meet the side key point required by actual luminescence according to the light energy ratio of selectively distributing excitation light and emergent light; the LED light source can be used as a light distribution component or a light distribution assembly or a light emitting component or a light emitting assembly to be used for manufacturing various strip-shaped light emitting devices, can be used as a local structure to be combined with other optical components or light emitting assemblies to be used for designing and manufacturing various light emitting devices, assemblies or equipment, such as LED light bars, character or letter or symbol light emitting modules, multifunctional lamps, light emitting signboard, contour lamps or outline signs, floor lamps and the like, has conventional illumination purposes, has a long afterglow light emitting function and a wider application range.

EXAMPLE III

The third embodiment of the invention provides an LED long-afterglow composite light-emitting strip lens with a TIR total reflection structure combined with a prism directional angle emission structure, as shown in fig. 35, the LED long-afterglow composite light-emitting strip lens comprises a strip lens body structure (310), the lens body structure (310) is a strip structure with transparent surrounding edges, the size of the central optical body part is gradually increased from bottom to top, the bottom center of the central optical body part is provided with an accommodating groove (310A) into which strip light source light can be incident, two sides of the lens body structure (310) are provided with transparent surrounding edges which are connected with the middle light distribution optical body part (3110), arranged in parallel with the middle light distribution optical body part (3110), and turned down and serve as side wall parts (3120), an accommodating groove (310B) (which can be arranged bilaterally or unilaterally) along the extending direction of the accommodating groove (310A) is arranged between the middle light distribution optical body part (3110), after the lens body structure (310) is turned over, the long afterglow luminescent forming body (320) is poured into the containing groove (310B) for flat solidification and forming through liquid mixed slurry of the long afterglow luminescent powder and the light guide medium, and a transparent protective layer can be further poured and leveled on the outer surface of the long afterglow luminescent forming body (320). The upper part of the lens body structure (310) is integrally formed, a plurality of parallel and inclined stripe patterns are arranged on the light emergent surface (310f), and polarized light emergent is realized by arranging the inclined stripe patterns.

Preferably, the included angle between the plane of the strip lines and the horizontal plane is 10-80 degrees. That is, the stripes are not parallel to the horizontal plane, but form an acute angle, and the inclined structure can realize the emergent light-gathering polarization. The angles are different, the polarization angles are also different, and the required angles can be set according to actual needs.

The adjacent strip grains are connected through connecting surfaces, and the included angle between the connecting surfaces and the plane where the strip grains are located is 10-80 degrees. Because the ribs are slanted and adjacent ribs do not share edges with each other, a connecting surface is needed to connect adjacent ribs. The reason why the included angle between the connecting surface and the plane of the stripe is an acute angle is that if the included angle is an obtuse angle, a blank area without the stripe exists in the top view, which is not favorable for improving the utilization rate of light.

In the vertical direction, the heights of the lengthwise ends of the stripes are the same, that is, the inclination direction of the stripes is not inclined from one end to the other end in the lengthwise direction thereof, but is inclined from one end to the other end in the widthwise direction of the stripes.

Each strip-shaped pattern is provided with a plurality of arc-shaped arches which are parallel to each other. The arc-shaped arches are long strips, and the radian of the cross section of the arc-shaped arches is 0.45-1.20.

The connecting surface is a smooth plane, so that the processing procedure is simplified, and the processing cost is reduced.

Preferably, the top inner wall of the accommodation groove (310A) is a plane, and a total reflection surface (310c) is provided on the outer side wall of the lighting part surrounding the accommodation groove (310A).

In a word, the light-emitting surface (310f) is provided with the plurality of mutually parallel inclined strip-shaped grains, so that polarization with a larger angle can be realized, the utilization rate of light is improved, the LED light-emitting device can realize a good light distribution effect without increasing an elevation angle, the structure is simplified, and the cost is reduced.

When the invention is used for an LED light-emitting device, as shown in fig. 37, a strip LED (350) is arranged at the lower port of an accommodating groove (310A), preferably a linear array LED light source is fixed at the bottom of an LED long afterglow composite light-emitting strip lens through a positioning structure, a gap between the strip LED light source and the LED long afterglow composite light-emitting strip lens is sealed by packaging glue, and then the bottom of the strip LED light source is sealed by the packaging glue; the light of the bar LED (350) is mainly divided into three paths, as shown in fig. 36: the first path of light directly irradiates the lower part of the inner side wall of the accommodating groove (310A), irradiates a total reflection surface (310c) after being refracted by the inner side wall of the accommodating groove (310A), and is reflected by the total reflection surface (310c) and then is polarized and emitted from a light emitting surface (310f) of the lens; the second path of light directly irradiates on the top wall light incident surface (310A1) of the accommodating groove (310A), and is polarized and emitted from the light emitting surface (310f) after passing through the lens; the third path of light directly irradiates the upper part of the inner side wall of the accommodating groove (310A), irradiates a light coupling surface (310e1) which is positioned above the total reflection surface (310c) and adjacent to the total reflection surface after being refracted by the inner side wall of the accommodating groove (310A), is transmitted to the long afterglow luminescent forming body (320) in the accommodating groove (310B) through the liquid or molten transparent light guide medium (330), and excites the long afterglow luminescent forming body (320) to emit light.

The LED long-afterglow composite light-emitting strip lens with the TIR total reflection structure and the prism directional angle emitting structure has a strip LED light-gathering polarization function and a long-afterglow light-emitting function, and can meet the side key points required by actual light emission according to the light energy ratio of selectively distributed excitation light and emergent light; the LED light source can be used as a light distribution component or a light distribution assembly or a light emitting component or a light emitting assembly to be used for manufacturing various strip-shaped light emitting devices, can be used as a local structure to be combined with other optical components or light emitting assemblies to be used for designing and manufacturing various light emitting devices, assemblies or equipment, such as LED light bars, character or letter or symbol light emitting modules, multifunctional lamps, light emitting signboard, contour lamps or outline signs, floor lamps and the like, has conventional illumination purposes, has a long afterglow light emitting function and a wider application range.

Example four

The fourth embodiment of the invention provides a strip lamp with an LED long afterglow composite light emitting strip lens structure, wherein the lens structure is a strip hard lamp shell (a hard lamp strip, the lower surface of the strip hard lamp shell corresponds to an LED lamp strip generally) formed by extruding PC or PMA, or a strip soft lamp shell (a soft lamp strip, the lower surface of the strip soft lamp strip generally corresponds to an LED lamp strip) formed by extruding transparent silica gel, PU and PVC, or a lamp shell formed by injection molding acrylic or PC, the middle light distribution optical main body part is a single strip extending straight line, the bottom of the middle light distribution optical main body part is provided with a linear accommodating groove which is sunken inwards and has a downward opening and is used for arranging a strip LED, the cross section of the outer side wall of the middle light distribution optical main body part is a parabola and serves as a total reflection surface, the corresponding light incident surface is a downward convex cambered surface, the light emergent surface is a plane, an optical structure with the function of a condensing lens is formed between The long afterglow luminous forming body is used as a side wall part, a linear containing groove which is arranged in parallel with the containing groove is arranged between the middle light distribution optical main body part and the side wall part, and the long afterglow luminous forming body (420) is mixed with the light guide medium (430), is reversely poured into the linear containing groove and is horizontally solidified to form the linear long afterglow luminous forming body.

When manufacturing the strip-shaped lamp, as shown in fig. 38-41, the strip-shaped LED (450) adopts a linear array LED light source, the linear array LED is fixed at the bottom of the LED long afterglow composite light emitting strip-shaped lens through a positioning buckle, a gap between the linear array LED and the LED long afterglow composite light emitting strip-shaped lens is sealed by packaging glue, then two ends of the linear array LED are sealed by plugs (440), and the bottom of the linear array LED is sealed by packaging glue.

The light of the bar LED (450) is mainly divided into three paths: the first path of light directly irradiates the lower part of the inner side wall of the accommodating groove, irradiates the total reflection surface after being refracted by the inner side wall of the accommodating groove, and is emitted from the light emitting surface of the lens after being reflected by the total reflection surface; the second path of light rays directly irradiate on the top wall light incident surface, and are emitted from the light emitting surface of the lens main body after being condensed and emitted by the lens; the third path of light directly irradiates on the upper part of the inner side wall of the accommodating groove, irradiates on a light coupling surface which is positioned above the total reflection surface and adjacent to the total reflection surface after being refracted by the inner side wall of the accommodating groove, is transmitted to the long afterglow luminescent forming body (420) in the accommodating groove through the liquid or molten transparent light guide medium (430) and excites the long afterglow luminescent forming body (420) to emit light. The height of the top of the strip-shaped LED (450) from the top wall of the accommodating groove can be adjusted as required to achieve the required light-emitting effect.

It is also possible to use the lens structure of the second or third embodiment to produce a strip lamp with a diverging or deflecting structure. As shown in fig. 42 and 43, a strip lamp with a diverging structure LED long afterglow composite luminous strip lens structure, the LED long afterglow composite luminous strip lens is a strip hard lamp shell (a hard lamp strip, generally corresponding to an LED lamp strip below) extruded and molded by PC or PMA, or a strip-shaped soft lamp shell (a soft lamp strip, generally corresponding to the LED lamp strip below) formed by extruding transparent silica gel, PU and PVC, or a lamp shell formed by injection molding acrylic or PC, the intermediate light distribution optical main body part is single, extends in a strip shape and is in a straight line, the light-emitting part protrudes upwards, a lighting part which is connected with the light-emitting part and extends in a strip shape along the accommodating groove is correspondingly arranged below the protruding part of the light-emitting part, the accommodating groove which is sunken upwards, has a downward opening and is used for accommodating the strip-shaped LED is arranged in the center of the bottom of the light-emitting part, and the long afterglow luminous forming body (420) and the light guide medium (430) are mixed and then are reversely poured into the accommodating groove to a proper depth and are leveled and cured to form a strip-shaped long afterglow luminous;

the curvature of the top wall light-in surface is larger than that of the light-out surface corresponding to the light-out part, an optical structure which enables at least part of light of the strip-shaped LED to be diverged and emitted is formed between the light-in surface and the light-out surface, and the thickness of the side wall of the lens body structure (410) is thin at the top and thick at the bottom;

when the strip-shaped LED is powered on, emitted light enters from the light incident surface, part of the light can exit from the light exiting surface after entering from the light incident surface of the side wall, so that part of light can keep the original light spectrum to be dispersed and exit laterally in a direction perpendicular to the extension direction of the accommodating groove when the strip-shaped LED emits light, part of the light is directly emitted or passes through the lens body and can be conducted to the long afterglow light emitting forming body (420) through the liquid or molten transparent light guide medium (430) and excite the long afterglow light emitting forming body (420) to emit light, at least part of the light emitted by the long afterglow light emitting forming body (420) passes through the light guide coupling surface through the liquid or molten transparent light guide medium (430) and emits light outwards from the light exiting surface, and the long afterglow light emitting forming.

The middle light distribution optical main body part of the LED long afterglow composite light-emitting strip lens is a single strip-shaped extension straight line, the top light-emitting surface of the light-emitting part is integrally protruded, the top center of the light-emitting part is relatively inwards sunken, the bottom center of the light-emitting part is provided with an upwards sunken accommodating groove with a downward opening and used for accommodating a strip-shaped LED, the top wall light-in surface of the light-emitting part is an inwards concave arc surface, and a divergent structure is formed between the top wall light-in surface and the corresponding light-emitting surface, the two sides of the central optical main body part are provided with downwards turned transparent surrounding edges serving as side wall parts, the accommodating groove is arranged between the light-emitting part and the side wall parts and can be arranged on two sides or on one side, as shown in figures 44-.

When the strip-shaped lamp is manufactured, the strip-shaped LED (450) adopts a linear array LED light source, the linear array LED is fixed at the bottom of the LED long afterglow composite luminous strip-shaped lens through a positioning buckle, and a gap between the linear array LED and the LED long afterglow composite luminous strip-shaped lens is sealed by packaging glue; finally, sealing the bottom of the container with packaging glue, as shown in FIG. 46; or sealed again at both ends with plugs (440), as shown in fig. 44, and finally sealed at the bottom with potting compound.

The strip-shaped lamp can also be fixed in a metal casing (such as an aluminum alloy casing) with a strip-shaped cavity, and light-transmitting tempered glass (having the functions of light transmission and protection) is arranged on a light-emitting surface (generally the top surface) of the strip-shaped lamp to manufacture the strip-shaped lamp with the metal casing.

Further, the circuit board may be connected to an external connection wire or electrode, or to a control circuit, and the bar-shaped LEDs (450) may emit light by a strobe preset at a certain period and duty ratio, or wherein each LED emits light in time sequence at a certain period and duty ratio. The radiator is further arranged below the circuit board layer, and when the strip-shaped lamp is fixed in the metal shell, the metal shell acts as the radiator.

The strip-shaped lamp has the emitting function of a conventional strip-shaped LED and the long-afterglow light emitting function, and can meet the side key point required by actual light emitting according to the light energy ratio of selectively distributed excitation light and emergent light; the LED linear strip-shaped lamp can be used as a linear strip-shaped lamp, can also be used as a traffic, fire-fighting and emergency sign and the like, and can also be used as a landscape decorative lamp.

EXAMPLE five

The fifth embodiment of the invention provides a modeling light-emitting lamp with an LED long afterglow composite light-emitting strip-shaped lens structure, wherein a lamp shell is a lamp panel shell formed by injection molding of transparent epoxy resin, a middle light distribution optical main body part can adopt the lens structure with the light-gathering function of the first embodiment as required, the middle light distribution optical main body part extends in a strip shape (curve or broken line) and is connected end to form a ring shape, such as a circular ring, a square ring or a polygonal ring (such as a hexagonal ring, see fig. 48-50), the bottom of the middle light distribution optical main body part is provided with an inwards concave strip-shaped accommodating groove with a downward opening and used for arranging a strip-shaped LED, the cross section of the outer side wall of the middle light distribution optical main body part is a parabola and serves as a total reflection surface, a corresponding light incoming surface is a downward convex cambered surface, a light outgoing surface is a plane, an optical structure with the light-gathering lens function is formed between the light incoming An annular accommodating groove arranged in parallel with the accommodating groove is formed between the middle light distribution optical main body part and the side wall part (on one side, such as the outer side or two sides), and the long afterglow luminous forming body (520) is mixed with the light guide medium (530), reversely poured into the strip-shaped accommodating groove and horizontally solidified to form an annular long afterglow luminous forming body;

when the modeling luminescent lamp is manufactured, the strip-shaped LED (550) adopts an annular LED light source (a plurality of strip-shaped or strip-shaped LED light sources can be wound into an annular shape and spliced end to form an annular shape), the annular LED light source is fixed at the bottom of the lamp housing lens structure through the positioning buckle, a gap between the annular LED light source and the lamp housing lens structure is sealed by packaging glue, and the bottom of the annular LED light source is sealed by the packaging glue.

The lens structure with the diverging function of the second embodiment can also be adopted, and the lens structure is extended in a strip shape (curve or broken line) and is connected end to form various closed ring shapes, so that the circular ring-shaped light-emitting lamp shown in fig. 51-53 is manufactured; or the lens structure with the polarization function of the third embodiment is adopted.

The central part surrounded by the middle light distribution optical main body part can be hollow so as to save materials; a reverse reflector may be provided on the surface of the central portion surrounded by the intermediate light distribution optical main body portion; the top surface of the central part surrounded by the middle light distribution optical main body part can be made into a connected light transmitting plate, the lower part of the connected light transmitting plate is provided with an LED array surface light source or a COB surface light source with different light emitting colors to serve as a second light distribution LED (552), and an annular LED light source in or below the accommodating groove serves as a strip-shaped LED (551) to realize the combined light emitting function; or a control circuit or a battery assembly is arranged in an inner cavity of the central part surrounded by the middle light distribution optical main body part and is connected into a circuit by a lead to control the LED to emit light at a certain rule (for example, stroboscopic light emission at a certain period and duty ratio or dynamic light emission according to time sequence); a top surface of the central portion surrounded by the intermediate light distribution optical main body portion may be a connected light transmitting plate, and a solar photovoltaic device or the like may be provided below the light transmitting plate, as shown in fig. 54, so that the light emitting device has a light emitting function of solar power supply.

The modeling luminescent lamp with the LED long afterglow composite luminescent strip lens structure has the functions of emitting the conventional strip LED and emitting the long afterglow, and can meet the side key points required by actual luminescence according to the light energy ratio of selectively distributing excitation light and emergent light; can be made into various shapes according to requirements, can be used for manufacturing character or letter or symbol light-emitting modules, multifunctional lamps, light-emitting signboard, contour light or outline sign, floor light and the like, and has wide application range.

EXAMPLE six

The sixth embodiment of the invention provides a signboard with an LED long-afterglow composite light-emitting strip lens structure of a light-gathering structure, wherein the waterproof strip lamp of the third embodiment can be implanted into a substrate through a hole as required, or can be embedded into or fixed on the surface of the substrate by a structural member, the top of each strip lamp protrudes out of the surface of the substrate and is arranged in a certain shape, as shown by parallel straight lines (as shown in fig. 55 and 56), wherein each strip lamp can be provided with a strip long-afterglow light-emitting formed body (620) or provided with strip long-afterglow light-emitting formed bodies (620) at intervals to achieve a mixed light-emitting effect, or is in an arrow shape (as shown in fig. 57 and 58), each strip lamp is electrically connected with an external wire from the bottom, and the rest part of the surface of the metal substrate can be pasted with a light-reflecting film.

The waterproof strip-shaped lamp can be packaged and then implanted into the substrate, the strip-shaped lens body structure (610) can also be implanted into the substrate, and then strip-shaped LEDs (651) (652) (lamp strips or lamp strips) are installed below the waterproof strip-shaped lamp body structure and sealed by the bottom plate and packaging glue.

The signboard with the LED long afterglow composite luminous strip lens structure of the light gathering structure can be used as a traffic luminous signboard, for example, the signboard is used as an arrow mark and is arranged on a road or a vertical surface (such as a tunnel side wall or a wall surface of an underground parking lot) in a direction opposite to the advancing direction of vehicles or pedestrians, the original luminous quality of a conventional arrow mark is kept, the conventional luminous effect can be realized, the luminous function of a long afterglow luminous body is realized, the retroreflection function is realized, the respective requirements of the vehicles and the pedestrians can be met, and the signboard has good practical value.

The invention is not to be considered as limited to the particular embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a compound luminous bar lens of LED long persistence, includes lens body structure (1), combines long persistence luminous formed body (2) on lens body structure (1) through transparent leaded light medium (3) with liquid solidification mode or molten state solidification mode, its characterized in that: the lens body structure (1) comprises a light energy distribution proportion used for adjusting light energy of LED emergent light and exciting light of the long afterglow light emitting forming body (2), a transparent middle light distribution optical main body part (11) which has a light coupling effect with the long afterglow light emitting forming body (2) and a secondary light distribution effect on the LED emergent light and has an optical main body structure effect, a strip-shaped and transparent middle light distribution optical main body part (11) which extends along a certain direction in the same section shape, and side wall parts (12) which are respectively arranged on two sides of the middle light distribution optical main body part (11) in parallel and are connected with the outer side parts of the middle light distribution optical main body part, an accommodating groove (1A) which is inwards sunken, downward in opening and can accommodate the strip-shaped LED is arranged at the middle part or close to the middle part of the bottom of the middle light distribution optical main body part (11), an accommodating groove (1B) or a conjunction structure (1D) used for combining the, the long afterglow luminous forming body (2) is a strip-shaped solidified forming body formed by mixing long afterglow luminous powder and a light transmitting mixed medium in proportion and forming the mixture in a liquid state or a molten state, and is combined at the position between the side wall of the central accommodating cavity (1A) and the peripheral part (12) through an accommodating groove (1B) or a fitting structure (1D), or is combined on the peripheral part (12), or is combined at the top of the central accommodating cavity (1A), wherein a transparent light guide medium (3) is arranged on the combining surface of the lens body structure (1) and the long afterglow luminous forming body (2), and the combining surface is a light guide coupling surface (1 e);

the bottom of the middle light distribution optical main body part (11) with the accommodating groove (1A) is a lighting part, the bottom of the lighting part is provided with lighting part bottom surfaces (1b) which are arranged on two sides of the accommodating groove (1A) in parallel, and a light outlet part is arranged above the corresponding lighting part; the inner wall of the accommodating groove (1A) of the lighting part is a light inlet surface (1A), the outer side surface of the top light outlet surface (1f1) of the light outlet part or/and the side wall part (12) connected with the light outlet part is a light outlet surface (1f), at least one part of the light inlet surface (1A) and the light outlet surface (1f) are correspondingly provided with a light outlet channel which can enable part of light beams emitted by the strip-shaped LED in the accommodating groove (1A) or below to be refracted or reflected in the lens body structure (1) through the light inlet surface (1A) and not pass through the light guide coupling surface (1e) and enable the original light spectrum of the strip-shaped LED to be transmitted outwards from the light outlet surface (1f) through the light inlet surface (1A), and enable part of emergent light of the strip-shaped LED to have the light distribution emergent function of the vertical section along the extension direction of the accommodating groove (1A), and an optical structure which can enable the light emitted by the strip-shaped LED to be conducted to the long afterglow A light excitation channel of the forming body (2), a light emitting channel which can enable excited light of the long afterglow light emitting forming body (2) to emit light outwards from the light emitting surface (1f) through refraction or reflection by the light guide coupling surface (1e) when the strip LED emits light and a light emitting channel which enables a part of afterglow light to emit light outwards from the light emitting surface (1f) through refraction or reflection by the light guide coupling surface (1e) after the strip LED is extinguished are formed between the long afterglow light emitting forming body (2) and the light emitting surface (1 f); an LED long afterglow composite luminous strip lens which is provided with a strip long afterglow luminous forming body (2) at a local area, at least the middle light distribution optical main body part (11) is a transparent body and has strip LED light distribution and long afterglow luminous functions is formed.

2. The LED long afterglow composite light emitting strip lens according to claim 1, wherein: an accommodating groove (1B) which is inwards concave, has a certain shape, can be used for combining the strip-shaped long afterglow luminous forming body (2) and is parallel to the accommodating groove (1A) is arranged between the middle light distribution optical main body part (11) and the side wall part (12), or the top of the accommodating groove (1A) is provided with an inwards concave strip-shaped accommodating groove (1B) which is inwards concave, has a certain shape, can be used for combining the strip-shaped long afterglow luminous forming body (2) and is parallel to the accommodating groove (1A);

the long afterglow luminous forming body (2) is a strip-shaped solidified forming body which is formed by directly pouring long afterglow luminous powder and a liquid transparent mixed medium into the containing groove (1B) for flat solidification after being mixed according to a proportion, the long afterglow luminous forming body is combined on the inner wall of the containing groove (1B) in a shape complementary form to form two sides of a central containing cavity (1A) or the integral structure of the strip-shaped long afterglow luminous forming body (2) is arranged at the top of the central containing cavity (1A), and the pouring contact surface is a light guide coupling surface (1 e).

3. The LED long afterglow composite light emitting strip lens according to claim 1, wherein: a fitting structure (1D) for mutually combining the lens body structure (1) and the long-afterglow luminescent forming body (2) is arranged on the lens body structure;

the long afterglow luminous forming body (2) is a strip-shaped preforming body formed by mixing long afterglow luminous powder and a molten transparent mixed medium in proportion and then curing the mixture through a mold, and is bonded and cured on the lens body structure (1) in a fit mode by virtue of a transparent light guide medium (3) according to corresponding areas to form an integral structure of the strip-shaped long afterglow luminous forming body (2) at two sides of a central accommodating cavity (1A) or at the top of the central accommodating cavity (1A); a transparent light guide medium (3) is arranged on the combination surface of the combination part where the combination structure (1D) is positioned to form a light guide coupling surface (1 e).

4. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the ratio of the emergent light energy of the strip-shaped LED is between 15% and 85%, or the ratio of the total projection area of the long afterglow luminous forming body (2) along the vertical direction to the projection area of the whole lens is between 15% and 85%, or the ratio of the area of the light guide coupling surface (1e) to the area of the outer surface of the lens body structure (1) is between 15% and 100%, or the ratio of the thickness of the long afterglow luminous forming body (2) to the height of the whole lens is between 15% and 85%.

5. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the long afterglow luminescent forming body (2) is SrAl₂O₄Long persistence luminous powder or Sr₄Al₁₄O₂₅The long-afterglow luminescent powder is a mixed solidified product of yellow-green or blue-green aluminate long-afterglow luminescent powder represented by type long-afterglow luminescent powder, or red or near-red long-afterglow luminescent powder represented by sulfide or nitride and a liquid or molten transparent mixed medium, or the long-afterglow luminescent molded body (2) is a combination of two or more long-afterglow luminescent bodies with different main excitation band wavelengths or different main luminescent wavelengths, or the grain diameter of the long-afterglow luminescent powder of the long-afterglow luminescent molded body (2) is between 5 and 200 mu m, or the proportion of the long-afterglow luminescent powder in the long-afterglow luminescent molded body (2) is between 20 and 60 percent, or the thickness of a preformed object of the long-afterglow luminescent molded body (2) is between 1.5 and 10 mm.

6. The LED long afterglow composite light emitting strip lens according to claim 1, wherein: the light incident surface (1A) is asymmetric, or the light emergent surface (1f) is asymmetric, or the central accommodating cavity (1A) is asymmetric, or the long afterglow luminescent forming body (2) is asymmetric, or the optical main body part (11) is asymmetric, or the peripheral part (12) is asymmetric.

7. The long-afterglow composite luminous strip lens comprising the LED according to any one of claims 1 to 3, wherein: the lens body structure (1) is made of PC, acrylic, PMMA, PS, epoxy resin or glass with the refractive index n1 between 1.4-2.2, and the liquid or molten state transparent light guide medium (3) is made of epoxy resin, silica gel or PU with the refractive index n2 between 1.4-2.2.

8. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the lens body structure (1) is integrally formed or formed in a split combined mode or formed in multiple times; or the light-emitting part, the lighting part and the side wall part (12) of the lens body structure (1) are integrally formed; or the light outlet part and the lighting part of the lens body structure (1) are integrally formed and glued with the side wall part (12) connected with the transparent top cover into a whole in a liquid state curing mode or a molten state curing mode through the transparent light guide medium (3); or the light outlet part and the side wall part (12) of the lens body structure (1) are integrally formed and are glued with the light collecting part into a whole in a liquid state curing mode or a molten state curing mode through the transparent light guide medium (3); or the bottom surface of the side wall part (12) is higher than the bottom surface (1b) of the lighting part at the bottom part of the lighting part, or the bottom surface of the side wall part (12) is lower than the bottom surface (1b) of the lighting part at the bottom part of the lighting part.

9. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the top of the lens body structure (1) is also provided with a transparent top cover or a transparent protective layer; or a transparent protective layer is arranged on or above the outer surface of the long afterglow luminescent forming body (2); or the surface of the long afterglow luminescent forming body (2) is provided with a light transmitting diffusion layer, a light guiding layer or a reflecting layer.

10. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the lens body structure (1) is also provided with a structure accessory (13); the structure accessory (13) is a limiting supporting structure (131) which is connected with the lens body structure (1) and used for assembling the LED and the circuit board, or a bottom edge (132) which is connected with the side wall part (12) and used for installing and fixing the outer expansion, or a fastening conjunction structure (133), or a waterproof sealing rubber ring structure (134), or an outlet groove (135), or a positioning component or a conjunction structure or a supporting piece on the bottom surface (1b) of the lighting part at the bottom of the lighting part, or a conjunction structure or a fixing structure at the edge of the lighting part.

11. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: plugs (4) are arranged at two ends of the LED long afterglow composite light-emitting strip-shaped lens; the lens body structure (1) and the plug (4) are integrally formed or formed in a split combination mode.

12. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the light incident surface (1a) and the light emergent surface (1f) form a cylindrical lens or a local cylindrical lens, a non-cylindrical lens or a local non-cylindrical lens, a total reflection lens or a local total reflection lens, a prism or a local prism, or an optical structure formed by combining two or more of the above two.

13. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the inner wall of the accommodating groove (1A) of the lens body structure (1) is a light incident surface (1A); the top wall of the accommodating groove (1A) is a top wall light incident surface (1A1), the side wall of the accommodating groove (1A) is a side wall light incident surface (1A2), and the top wall light incident surface (1A1) and the side wall light incident surface (1A2) are connected into a whole.

14. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the top light-emitting surface (1f1) of the light-emitting part of the lens body structure (1) or/and the outer side surface of the side wall part (12) connected with the light-emitting part are light-emitting surfaces (1 f); the top light-emitting surface (1f1) of the light-emitting part is a top light-emitting surface (1f1), the outer side surface of the side wall part (12) is a side light-emitting surface (1f2), and the top light-emitting surface (1f1) and the side light-emitting surface (1f2) are connected into a whole; or, the top light-emitting surface (1f1) of the light-emitting part is a top light-emitting surface (1f1), the outer side surface of the side wall part (12) is a side light-emitting surface (1f2), the top light-emitting surface (1f1) and the side light-emitting surface (1f2) are connected into a whole, and a transition surface (1f3) is arranged between the top light-emitting surface (1f1) and the side light-emitting surface (1f 2).

15. The LED long afterglow composite light emitting strip lens according to claim 1, wherein: an optical structure which is provided with a convex lens or a local convex lens or a similar convex lens with thick middle and thin periphery and meets the requirement that at least part of light of the strip-shaped LED in the accommodating groove (1A) can condense and emit along the vertical section of the extending direction of the accommodating groove (1A) is formed between the light inlet surface (1A) and the light outlet surface (1f), or a coated reflecting layer with the condensing function along the vertical section of the extending direction of the accommodating groove (1A) is arranged below the light collecting part.

16. The LED long afterglow composite light emitting strip lens according to claim 1, wherein: an optical structure which is provided with a concave lens or a local concave lens or a similar concave lens with a thin middle part and a thick periphery and meets the requirement that at least part of light of the strip-shaped LED in the accommodating groove (1A) is diverged and emitted away from the light-emitting main shaft along the vertical section of the extending direction of the accommodating groove (1A) is formed between the light inlet surface (1A) and the light outlet surface (1 f).

17. The LED long persistence compound lens of any one of claims 1 to 3, wherein: an optical microstructure is arranged on the light incident surface (1a) or the bottom surface (1b) of the light collecting part at the bottom of the light collecting part or the outer side surface or the light emitting surface (1f) of the light collecting part, and the optical microstructure is an array formed by a plurality of microstructure prism units or an array formed by a plurality of microstructure lens units; or a plurality of cutting surfaces or prism stripes are arranged on the light incident surface (1a) or the outer side surface or the light emergent surface (1f) of the lighting part; or the lens body structure (1) is provided with a light diffusion microstructure or a light homogenizing microstructure; or a reflecting layer is arranged on the bottom surface (1b) of the lighting part or the bottom surface of the periphery part of the lens body structure (1).

18. The LED long persistence composite luminescence strip lens of any one of claims 1 to 3, wherein: the outer side part or the outer periphery of the middle light distribution optical main body part (11) is also provided with a micro-prism type reflection structure, or the side part or the side periphery of the side wall part (12) is also provided with a micro-prism type reflection structure.

19. A lighting fixture containing the LED long persistence composite lighting strip lens structure of claim 1, wherein: the strip-shaped LED (5), the circuit board layer (6) and the packaging layer (7) are correspondingly arranged in the accommodating groove (1A) of the LED long-afterglow composite luminous strip-shaped lens or below the accommodating groove (1A); the circuit board layer (6) is arranged at the bottom of the LED long afterglow composite light-emitting strip lens through packaging glue or a fit structure or a fastening structure and forms a sealed air layer with the inner wall of the LED long afterglow composite light-emitting strip lens, the strip LED (5) is arranged in the air layer without contacting with the accommodating groove (1A), the circuit board layer (6) is also connected with an external electrical connecting wire or a connecting port (8), and the packaging layer (7) is arranged below the circuit board layer (6) to package all elements into a whole to form a luminous body containing the LED lens structure; or a transparent light guide medium (3) layer is arranged between the circuit board layer (6) and the inner wall of the LED long afterglow composite luminescent lens, and the strip-shaped LED (5) is fixed in the accommodating groove (1A) in a liquid state solidification mode or a molten state solidification mode through the transparent light guide medium (3).

20. The LED long persistence composite luminescence strip lens of claim 2, wherein: the LED long afterglow composite luminous strip lens comprises a middle light distribution optical main body part (11) which extends in the vertical direction along the same cross section shape and is in a straight line shape, the bottom of a lighting part of the middle light distribution optical main body part (11) is provided with a straight line-shaped accommodating groove (1A) which is sunken inwards, has a downward opening and can accommodate a strip LED, the corresponding light incoming surface (1A) and light outgoing surface (1f) are cylindrical surfaces, an optical structure which has the function of a secondary light distribution strip lens along the vertical cross section of the extending direction of the accommodating groove (1A) is formed between the straight line-shaped accommodating groove and the straight line-shaped accommodating groove, the straight line-shaped accommodating groove (1B) is arranged between the middle light distribution optical main body part (11) and the straight line-shaped accommodating groove (1A) in parallel, the long afterglow luminous forming body (2) is combined on the inner wall of the linear containing groove (1B) in a liquid state curing mode or a molten state curing mode in a whole section or in a subsection mode through the transparent light guide medium (3) to form the linear LED long afterglow composite luminous lens.

21. The LED long persistence composite luminescence strip lens of claim 2, wherein: the LED long afterglow composite luminous strip lens comprises a middle light distribution optical main body part (11) which extends along the non-vertical direction with the same section shape or deflects with a certain angle to form a curve or a zigzag shape, a curve or zigzag shape containing groove (1A) which is sunken inwards, has a downward opening and can contain a strip LED is arranged at the bottom of the lighting part of the middle light distribution optical main body part (11), an optical structure which has the function of a secondary light distribution strip lens along the vertical section of the extending direction of the containing groove (1A) is formed between the corresponding light incident surface (1A) and light emergent surface (1f), side wall parts (12) which are connected with the middle light distribution optical main body part (11) are arranged at two sides of the middle light distribution optical main body part (11), a curve or zigzag shape containing groove (1B) which is arranged in parallel with the containing groove (1A) is arranged between the middle light distribution optical main body part (11) and the side wall, the long afterglow luminous forming body (2) is combined on the inner wall of the curve or fold line shaped containing groove (1B) in a liquid state solidification mode or a molten state solidification mode in a whole section or in a subsection mode through the transparent light guide medium (3) to form the curve or fold line shaped LED long afterglow composite luminous lens.

22. The LED long persistence composite luminescence strip lens of claim 2, wherein: the LED long afterglow composite luminous strip lens comprises a plurality of strip-shaped middle light distribution optical main body parts (11) which are arranged in parallel, wherein an accommodating groove (1A) and an accommodating groove (1B) of the LED long afterglow composite luminous strip lens are arranged in parallel with the middle light distribution optical main body parts (11), and a long afterglow luminous forming body (2) is combined on the inner wall of the accommodating groove (1B) in a liquid state curing mode or a molten state curing mode through a transparent light guide medium (3) to form a corresponding strip shape.

23. The LED long persistence composite luminescence strip lens of claim 2, wherein: the proportion of the total projected area of the long-afterglow luminous forming body (2) along the vertical direction to the projected area of the whole lens is 50-85%, or the proportion of the area of the combined surface of the long-afterglow luminous forming body (2) and the accommodating groove (1B) to the surface area of the inner wall of the accommodating groove (1B) is 50-100%, or the proportion of the thickness of the long-afterglow luminous forming body (2) to the height of the whole lens is 50-85%, or the proportion of the accumulated height of the long-afterglow luminous forming body (2) in the vertical direction to the depth of the accommodating groove (1B) is 50-100%, or the included angle between the connecting line of any point in the space of the accommodating groove (1B) and the central vertical axis of the accommodating groove (1A) and the central position for arranging the strip-shaped LED is 0-45 degrees; or the proportion of the total projected area of the long-afterglow luminous molded body (2) along the vertical direction to the projected area of the whole lens is between 15 and 50 percent, or the area of the combined surface of the long afterglow luminescent forming body (2) and the accommodating groove (1B) accounts for 15 to 50 percent of the surface area of the inner wall of the accommodating groove (1B), or the thickness of the long-afterglow luminescent molded body (2) accounts for 15 to 50 percent of the total height of the lens, or the ratio of the accumulated height of the long afterglow luminescent forming body (2) in the vertical direction to the depth of the accommodating groove (1B) in the vertical direction is between 10 and 50 percent, or the included angle between the connecting line of any point in the space zone bit of the accommodating groove (1B) and the central position for arranging the strip-shaped LED and the central vertical axis of the accommodating groove (1A) is 45-90 degrees.

24. The LED long persistence composite luminescence strip lens of claim 2, wherein: the long afterglow luminescent forming body (2) is combined on the inner wall of the strip-shaped accommodating groove (1B) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode to form a connected strip-shaped long afterglow luminescent forming body; or the holding groove (1B) is a strip-shaped holding groove (1B) separated by a transparent body, and the long-afterglow luminescent forming body (2) is combined on the inner wall of the holding groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode to form a segmented strip-shaped long-afterglow luminescent forming body (2);

or two or more parallel strip-shaped accommodating grooves (1B) are arranged on the lens body structure (1), and strip-shaped long afterglow luminescent forming bodies (2) are combined on the inner wall of each accommodating groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode;

or the accommodating groove (1B) is narrow at the top and wide at the bottom; or the side wall light incident surface (1a2) is a cylindrical surface; or the cross section of the accommodating groove (1B) is U-shaped, V-shaped or W-shaped; or the cross section of the light guide coupling surface (1e) is U-shaped, V-shaped or W-shaped.

25. The LED long persistence composite luminescence strip lens of claim 2, wherein: the lens body structure (1) is a linear LED long afterglow composite light emitting lens which is bilaterally symmetrical along a bottom surface vertical surface passing through the central axis of the accommodating groove (1A), the strip-shaped accommodating grooves (1B) are symmetrically arranged at the left side and the right side of the accommodating groove (1A), and the strip-shaped long afterglow light emitting forming body (2) is symmetrically combined on the inner walls of the strip-shaped accommodating grooves (1B) at the two sides of the accommodating groove (1A) in a liquid curing mode or a molten state curing mode through the transparent light guide medium (3).

26. The LED long persistence composite luminescence strip lens of claim 2, wherein: the light-emitting part is a strip-shaped light-emitting part protruding upwards, a strip-shaped lighting part connected with the light-emitting part is correspondingly arranged below the protruding part of the light-emitting part, and a strip-shaped accommodating groove (1A) which is sunken upwards, has a downward opening and is used for accommodating a strip-shaped LED is arranged in the center of the bottom of the lighting part; the side wall part (12) is turned upwards, and a strip-shaped accommodating groove (1B) with an upward opening is formed between the outer side walls of the two sides of the light outlet part and the inner side wall of the side wall part (12); the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode.

27. The LED long persistence composite luminescence strip lens of claim 2, wherein: the lighting part is a downward-protruding strip-shaped lighting part, the center of the bottom of the lighting part is provided with an upward-recessed strip-shaped accommodating groove (1A) with a downward opening and used for accommodating a strip-shaped LED, the inner wall of the lighting part is a light incident surface, the top wall forms a top wall light incident surface (1A1), and the side wall forms a side wall light incident surface (1A2) which is connected with the top wall light incident surface (1A1) into a whole; the side wall part (12) is turned downwards, and a strip-shaped accommodating groove (1B) with a downward opening is formed between the outer side walls of the two sides of the lighting part and the inner side wall of the side wall part (12); the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode.

28. The LED long persistence composite luminescence strip lens of claim 2, wherein: a strip-shaped long afterglow luminescent forming body (2) is combined in the accommodating groove (1A) in a liquid state solidification mode or a molten state solidification mode through a transparent light guide medium (3); or the light-emitting part is provided with a strip-shaped accommodating groove (1B), and the inner wall of the strip-shaped accommodating groove (1B) is combined with a strip-shaped long afterglow luminescent forming body (2) through a transparent light guide medium (3) in a liquid state solidification mode or a molten state solidification mode; or two or more strip-shaped accommodating grooves (1B) are arranged on the lens body structure (1), and strip-shaped long afterglow luminescent forming bodies (2) are respectively combined on the inner walls of the accommodating grooves (1B) through transparent light guide media (3) in a liquid state curing mode or a molten state curing mode.

29. The LED long persistence composite luminescence strip lens of claim 2, wherein: the top light-emitting surface (1f1) of the light-emitting part of the lens body structure (1) is a plane or a convex surface, the lighting part is a downward-protruding strip-shaped structure with a large upper part and a small lower part and an inverted trapezoid or similar inverted trapezoid-shaped cross section, the top wall light-incident surface (1A1) is a plane or a convex surface or a concave surface, a light-gathering structure or a divergent structure with a vertical cross section along the extension direction of the accommodating groove (1A) is formed between the light-incident surface (1A) and the corresponding light-emitting surface (1f), a strip-shaped accommodating groove (1B) parallel to the accommodating groove (1A) is formed between the outer side surface of the lighting part and the inner side surface of the side wall part (12), and a strip-shaped long-afterglow light-emitting forming body (2) is combined on the inner wall of the accommodating; the lens body structure (1) and the long afterglow luminescent forming body (2) are combined into the LED long afterglow composite luminescent strip lens which can enable part of light emitted by the strip LED to be condensed and emitted or diverged and emitted along the vertical section of the extension direction of the accommodating groove (1A) according to the original spectrum and has the afterglow luminescent function through the transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode.

30. The LED long persistence composite luminescence strip lens of claim 2, wherein: the top light-emitting surface (1f1) of the light-emitting part is a plane or an outward convex light-gathering free-form surface, the light-gathering part is a downward convex strip-shaped structure with a large upper part and a small lower part and an inverted trapezoid-like or inverted trapezoid-like cross section, the bottom surface (1B) of the light-gathering part at the bottom of the light-gathering part extends outwards and upwards to form an outer side surface of the outward convex free-form surface, a total reflection surface (1c) which can enable part of incident light emitted by the strip-shaped LED in the accommodating groove (1A) to be subjected to total reflection (TIR) is formed on the outer side surface close to the bottom surface (1B) of the light-gathering part, the top wall light-in surface (1A1) is the outward convex light-gathering free-form surface, a light-gathering structure which is perpendicular to the cross section along the extension direction of the accommodating groove (1A) is formed between the light-gathering part and the corresponding top light-emitting surface (1f1), a strip-shaped accommodating groove The long afterglow luminous forming body (2) is formed by pouring mixed slurry of long afterglow luminous powder and a liquid or molten transparent mixed medium onto the inner wall of the accommodating groove (1B) to flow and solidify after the lens body structure (1) is turned over.

31. The LED long persistence composite luminescence strip lens of claim 2, wherein: the top of the light-emitting part is wholly raised, the center of the top surface is sunken, or a top light-emitting surface (1f1) of the light-emitting part is a plane or an outer convex free-form surface with smaller curvature, the light-collecting part is a strip-shaped structure with an inverted trapezoid or similar inverted trapezoid cross section, a top wall light-in surface (1A1) of the light-emitting part is an inner concave free-form surface with larger curvature, a vertical cross section far away from a light-emitting main shaft divergent structure along the extension direction of the accommodating groove (1A) is formed between the light-collecting part and the side wall part (12), a strip-shaped accommodating groove (1B) is arranged between the light-collecting part and the side wall part (12), a strip-shaped long afterglow light-emitting forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid curing mode or a molten curing mode, and the long afterglow light-emitting forming body (2) is formed by pouring mixed slurry of the And (4) leveling the solidified formed body.

32. The LED long persistence composite luminescence strip lens of claim 6, wherein: the light emitting surface (1f) is an inclined surface with a certain inclination angle or a free curved surface with a certain inclination angle and a convex central part, or a plurality of inclined refraction surfaces are arranged on the light emitting surface (1 f); at least one part between the light incident surface (1A) and the light emergent surface (1f) forms an optical structure which can lead the emergent main light beam of the strip-shaped LED in the central accommodating cavity (1A) to be emergent in an acute angle direction with the main light emitting shaft.

33. The LED long persistence composite luminescence strip lens of claim 15, wherein: the middle parts of the light incident surface (1a) and the light emergent surface (1f) are mutually planes and convex light-gathering free-form surfaces, or are mutually biconvex light-gathering free-form surfaces, or the light emergent surface (1f) is provided with an upper convex light-gathering free-form surface, or the top wall light incident surface (1a1) is a lower convex light-gathering free-form surface.

34. The LED long persistence composite luminescence strip lens of claim 15, wherein: the lighting part protrudes downwards, the bottom surface (1b) of the lighting part at the bottom of the lighting part extends outwards and upwards to form an outer side surface, and a TIR total reflection surface (1c) which meets the condition that partial incident light emitted by the strip-shaped LED in the accommodating groove (1A) can be totally reflected upwards or laterally upwards in the lens along the vertical section of the extending direction of the accommodating groove (1A) is formed on the outer side surface close to the bottom surface (1b) of the lighting part.

35. The LED long persistence composite luminescence strip lens of claim 16, wherein: the middle parts of the light incident surface (1a) and the light emergent surface (1f) are mutually plane and concave divergent free-form surfaces, or mutually double concave divergent free-form surfaces, or the light emergent surface (1f) corresponding to the upper part of the light incident surface (1a) is a free-form surface with a concave center.

36. The LED long persistence composite luminescence strip lens of claim 16, wherein: the light-emitting surface (1f) is provided with an optical structure which can enable part of light of the strip-shaped LED in the accommodating groove (1A) to meet the condition of total reflection towards the lower part or the side lower part inside the lens.

37. The LED long persistence composite luminescence strip lens of claim 16, wherein: the LED lighting device is characterized in that the light-emitting part protrudes upwards, a strip-shaped light-collecting part which is connected with the light-emitting part and is parallel to the accommodating groove (1A) is correspondingly arranged below the upward protruding part of the light-emitting part, the center of the bottom of the light-collecting part is provided with a strip-shaped accommodating groove (1A) which is sunken upwards, has a downward opening and is used for accommodating a strip-shaped LED, and two sides of the bottom of the light-collecting part are provided with strip-shaped accommodating grooves (1B) which are sunken upwards, are parallel to the accommodating groove (1A), are open downwards and are used for accommodating a strip-shaped long; the strip-shaped long afterglow luminescent forming body (2) is combined on the inner wall of the accommodating groove (1B) through a transparent light guide medium (3) in a liquid state curing mode or a molten state curing mode;

the curvature of the top wall light incident surface (1A1) is larger than that of the corresponding top light emergent surface (1f1), and at least one part between the light incident surface (1A) and the light emergent surface (1f) forms an optical structure which can ensure that at least part of light of the strip-shaped LED in the accommodating groove (1A) diverges and emits along the vertical section of the extending direction of the accommodating groove (1A) and away from the light emitting main shaft.

38. The LED long persistence composite luminescence strip lens of claim 16, wherein: the strip-shaped long afterglow luminous forming body (2) is combined on the inner wall of the top of the accommodating groove (1A) in a liquid state curing mode or a molten state curing mode through a transparent light guide medium (3);

the curvature of the top wall light incident surface (1A1) is larger than that of the corresponding top light emergent surface (1f1), at least one part between the light incident surface (1A) and the light emergent surface (1f) forms an optical structure which can ensure that at least part of light of the strip-shaped LED in the accommodating groove (1A) diverges and emits along the vertical section of the extending direction of the accommodating groove (1A) and is far away from the light emitting main shaft, and the thickness of the side wall of the lens body structure (1) is thin at the top and thick at the bottom.

39. The light-emitting apparatus comprising the LED long-afterglow composite light-emitting lens structure according to claim 19, wherein: and a reflecting layer or a reflector is also arranged on the circuit board layer (6).

40. The light emitting fixture of claim 19, wherein: and a second light distribution LED is also arranged between the middle light distribution optical main body part (11) and the side wall part (12) of the LED long afterglow composite light emitting strip lens.

41. The light emitting fixture of claim 19, wherein: an accommodating groove capable of accommodating the strip-shaped LED is further formed in the inner wall of the accommodating groove (1B) below the long afterglow luminescent forming body (2), and a strip-shaped LED (5) is arranged in the accommodating groove.

42. The light emitting fixture of claim 19, wherein: the strip-shaped LED (5) is a strip-shaped LED light source with the wavelength range of the luminescence spectrum in the wavelength range of the excitation spectrum of the long-afterglow luminescence forming body (2) or crossed or overlapped or covered with the wavelength range of the excitation spectrum of the long-afterglow luminescence forming body (2), or a bar-shaped LED light source which at least comprises more than two light-emitting diodes and respectively has mixed light of two or more than two main light-emitting wavelengths, or a visible light strip-shaped LED light source combined with a UV auxiliary light source corresponding to the excitation spectrum of the long afterglow luminous forming body (2), or a plurality of RGB LEDs which are integrally packaged, or a plurality of RGBW LEDs which are integrally packaged, or a plurality of integrally packaged RGB UV LEDs, or a plurality of integrally packaged RG UV LEDs, or a COB-packaged bi-color or multi-color bar LED luminous body.

43. The light emitting fixture of claim 19, wherein: the circuit board layer (6) is also connected with an external connecting wire or an electrode or a control circuit, or a chassis or a bracket is arranged below the circuit board layer (6).

44. The light emitting fixture of claim 19, wherein: the light emitting device containing the LED long afterglow composite light emitting strip lens structure is also provided with a retro-reflective material or a retro-reflective structure.

45. The light emitting fixture of claim 19, wherein: the strip-shaped LED (5) is controlled to emit light in a stroboscopic manner at a certain period and a certain duty ratio and excites the long-afterglow light-emitting forming body (2) to emit light, and the light-emitting device is controlled in a stroboscopic light-emitting mode; or the strip-shaped LED (5) comprises two or more LEDs, is controlled to emit light according to a certain period and duty ratio and time sequence and excites the long afterglow luminous forming body (2) to emit light, and the luminous device is a luminous device controlled in a time sequence luminous mode; or the strip-shaped LED (5) is also connected with an energy storage element; or the strip-shaped LED (5) is also connected with a solar photovoltaic device, and the light-emitting device is a light-emitting device powered by solar energy.

46. The LED long persistence composite light emitting stripe lens of claim 34, wherein: the TIR total reflection surface (1c) is provided with an optical microstructure which is a microstructure prism unit array or a microstructure lens unit array.

47. The LED long persistence composite light emitting stripe lens of claim 34, wherein: the TIR total reflection surface (1c) is provided with a second-level or more TIR structure; or the TIR total reflection surface (1c) is provided with two or more than two TIR structures, a strip-shaped accommodating groove (1B) is arranged between the two adjacent TIR structures, and the inner wall of the strip-shaped accommodating groove (1B) is combined with a strip-shaped long afterglow luminous forming body (2) in a liquid state curing mode or a molten state curing mode through a transparent light guide medium (3).

48. The LED long persistence composite light emitting stripe lens of claim 35, wherein: the curvature of the top wall light incident surface (1a1) is greater than that of the side wall light incident surface (1a2), and the curvature of the top wall light incident surface (1a1) is greater than that of the corresponding top light emergent surface (1f 1); or the cross section of the side wall where the side light-emitting surface (1f2) or the transition surface (1f3) is located is in a shape with a narrow top and a wide bottom; or the top wall light incident surface (1a1) is convex downwards, and the lower convex body is provided with a scattering microstructure.