CN220102938U - LED linear lamp optical system and lamp - Google Patents

Abstract

The utility model discloses an LED linear lamp optical system and a lamp, wherein the optical system comprises a first light distribution part and a second light distribution part, the first light distribution part comprises a light collector and a light controller, the light collector comprises light collecting units which are linearly arranged, each light collecting unit is used for mounting at least one LED light source, the light controller comprises light control units which are linearly arranged, the light collecting units and the light control units are in one-to-one correspondence, the second light distribution part comprises a polarized light optical sheet or a uniform light optical sheet, and the second light distribution part is arranged on the light emitting side of the first light distribution part. According to the utility model, by arranging the light collecting units and the light control units in one-to-one correspondence, the light emitted by each LED is ensured to be subjected to light control treatment, so that the uniformity of the light is greatly improved, the light injected into the second light distribution part is uniform, and light spots with good uniformity are refracted out of the lamp through the second light distribution part again, so that the light spots are further subjected to a smooth effect, and the whole lamp is not dazzled.

Description

LED linear lamp optical system and lamp

Technical Field

The utility model relates to the field of LED light sources, in particular to an LED linear lamp optical system and a lamp.

Background

In the field of LED linear lamp illumination, a light distribution structure is often set at the LED lamp beads, as shown in fig. 1, the existing light distribution structure mostly adopts a lens plate 1, a total reflection lens 11 or a transmission lens 11 is set at each LED lamp bead, and a lens fly eye 12 or a lens micro-cylindrical surface is set on the plate surface. Due to the separability of the light source, the uniformity of the illuminance on the surface of the lens is very low, so that the problems of larger glare and dazzling are brought.

Disclosure of Invention

The utility model aims at: aiming at the problems of the prior art that the uniformity of the illuminance of the lens surface is very low and larger glare is caused due to the separability of the light source, the LED linear lamp optical system and the lamp are provided.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a LED linear lamp optical system, includes first grading part and second grading part, first grading part includes light collector and accuse light, the light collector includes the light collecting unit that the linearity was arranged, every the light collecting unit is used for installing at least one LED light source, accuse light includes the accuse light unit that the linearity was arranged, the light collecting unit with accuse light unit one-to-one, second grading part includes polarizing optics piece or even optical piece, second grading part set up in the light-emitting side of first grading part.

The first light distribution component comprises the light collecting unit and the light control unit corresponding to the light collecting unit, the second light distribution component comprises the polarized light optical sheet or the light homogenizing optical sheet, and the light collecting unit and the light control unit which are in one-to-one correspondence are arranged, so that light emitted by each LED is ensured to be subjected to light control treatment, the uniformity of the light is greatly improved, the light incident into the second light distribution component is uniform, and light spots with good uniformity are refracted out of the lamp through the second light distribution component (the polarized light optical sheet or the light homogenizing optical sheet) again, so that the light spots further have a smooth effect, and the integrally emitted light is not glaring or dazzling.

As a preferred embodiment of the present utility model, the polarizing optical sheet is a single polarizing optical sheet or a double polarizing optical sheet.

As a preferable scheme of the utility model, the single polarization optical sheet comprises a Fresnel lens arranged on one surface of the membrane, and unidirectional deflection of light rays can be realized.

As a preferable scheme of the utility model, the single-polarization optical sheet also comprises a bead strip or a frosted structure arranged on the other surface of the membrane, so that the uniform light effect can be further achieved.

As a preferable scheme of the utility model, the double-polarization optical sheet comprises a double-polarization microstructure arranged on one surface of the membrane, the double-polarization microstructure is a strip-shaped bulge, and the double-polarization microstructure is provided with two symmetrical light distribution surfaces, so that double-polarization light distribution is realized.

As a preferable scheme of the utility model, the dual-polarized optical sheet also comprises a bead strip or a frosted structure arranged on the other surface of the membrane, and the diameter of the bead strip is smaller than that of the dual-polarized microstructure, so that the dual-polarized optical sheet can further play a role in light homogenizing.

As a preferable scheme of the utility model, the dodging optical sheet comprises a rib microstructure arranged on one side or two sides of the film sheet, wherein the rib microstructure is in a strip structure and is linearly arranged. The dodging optical sheet is used for dodging.

As a preferable mode of the present utility model, a minimum distance between the first light distribution member and the second light distribution member is less than or equal to 10mm. The overall size of the lamp can be reduced, and the processing cost is reduced.

As a preferable mode of the present utility model, a minimum distance between the first light distribution member and the second light distribution member is less than or equal to 6mm. The overall size of the lamp can be further reduced, and the processing cost is further reduced.

As a preferable scheme of the utility model, the light collecting unit is a reflecting cup or a reflecting lens, the light control unit is a convex lens or a Fresnel lens, and the light control unit covers the light emitting surface of the light collecting unit.

As a preferable scheme of the utility model, the light collecting unit and the light control unit are integrally injection molded structural parts, so that the processing is convenient.

As a preferable scheme of the utility model, the reflecting surface of the light collecting unit is a straight surface or an inverted arc surface, and the design of the inverted arc surface can improve the consistency of light energy distribution.

As a preferable scheme of the utility model, the light control unit is provided with a compound eye structure, so that the uniformity of light rays can be improved.

The utility model also discloses an LED lamp, which comprises any one of the LED linear lamp optical systems.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the first light distribution component comprises the light collecting unit and the light control unit corresponding to the light collecting unit, the second light distribution component comprises the polarized light optical sheet or the light homogenizing optical sheet, and the light collecting unit and the light control unit which are in one-to-one correspondence are arranged, so that light emitted by each LED is ensured to be subjected to light control treatment, the uniformity of the light is greatly improved, the light incident into the second light distribution component is uniform, and light spots with good uniformity are refracted out of the lamp through the second light distribution component (the polarized light optical sheet or the light homogenizing optical sheet) again, so that the light spots further have a smooth effect, and the integrally emitted light is not glaring or dazzling.

2. Under the condition that the first light distribution part is kept unchanged, the utility model can carry out light balancing or polarization by only changing the shape or the size of the second light distribution part (the polarized light optical sheet or the light balancing optical sheet) and the like, so as to obtain different light distribution effects, and further can further meet the use requirements of different lamps. Therefore, batch production can be realized, the processing cost is further reduced, and the method has remarkable economic benefit.

3. The second light distribution part adopts the polarized optical sheet or the light homogenizing optical sheet, and the polarized optical sheet is a single polarized optical sheet or a double polarized optical sheet, so that not only can the deflection of light be realized, but also the secondary light homogenizing effect can be achieved.

4. The first light distribution part is arranged, so that the light rays injected into the second light distribution part are uniform, the distance between the first light distribution part and the second light distribution part can be greatly reduced, the minimum distance between the first light distribution part and the second light distribution part is smaller than or equal to 10mm and even smaller than or equal to 6mm, the overall size of the lamp is small, the material saving is facilitated, the processing cost is reduced, and the flexibility of the installation of an optical system is also improved.

5. The utility model can design the light collecting unit and the light control unit into an integral injection molding structural part, is more convenient to process, reduces processing procedures and improves the matching precision.

6. According to the utility model, the reflecting surface of the light collecting unit is designed to be a straight surface or an inverted arc surface, and the compound eye structure is arranged on the light control unit, so that the uniformity of light energy distribution can be improved, and the uniformity of light rays can be further improved.

Drawings

Fig. 1 is a schematic view of a lens plate of a conventional LED linear lamp.

Fig. 2 is a schematic structural diagram of an optical system of an LED linear lamp according to the present utility model.

Fig. 3 is a schematic structural view of the light collector and the light controller according to the present utility model.

Fig. 4 is a cross-sectional view of fig. 3.

Fig. 5 is an exploded view of the part of fig. 3.

Fig. 6 is a schematic three-dimensional structure of the light collector according to the present utility model.

Fig. 7 is a schematic three-dimensional structure of a light collector according to the present utility model.

Fig. 8 is a schematic three-dimensional structure of a light controller according to the present utility model.

Fig. 9 is a schematic three-dimensional structure of a light controller according to the present utility model.

Fig. 10 is a schematic view of the optical paths of the light collector and the light controller according to the present utility model.

Fig. 11 is a schematic view of the structure of the LED linear lamp light system according to the present utility model when the single polarization optical sheet is used.

Fig. 12 is a schematic structural view of a single polarization optical sheet according to the present utility model.

Fig. 13 is a front view of a single polarization optical sheet according to the present utility model.

Fig. 14 is a schematic view of the first optical path of the LED linear lamp light system according to the present utility model when the single polarization optical sheet is used.

Fig. 15 is a second schematic view of the optical path of the LED linear lamp light system according to the present utility model when the single polarization optical sheet is used.

Fig. 16 is a schematic view of the structure of the LED linear lamp light system according to the present utility model when the dual polarizing optical sheet is used.

Fig. 17 is a schematic structural view of a dual polarizing optical sheet according to the present utility model.

Fig. 18 is a front view of a dual polarizing optical sheet according to the present utility model.

Fig. 19 is a schematic view of the optical path of the LED linear lamp light system according to the present utility model when the dual polarizing optical sheet is used.

Fig. 20 is a schematic structural view of an LED linear lamp optical system according to the present utility model using a dodging optical sheet.

Fig. 21 is a schematic structural view of the dodging optical sheet according to the present utility model.

Fig. 22 is a front view of a dodging optical sheet according to the present utility model.

Fig. 23 is a schematic view of an optical path when the LED linear lamp optical system according to the present utility model employs a dodging optical sheet.

Fig. 24 is an illuminance distribution diagram of the surface of a conventional total reflection lens lamp.

Fig. 25 is a graph showing illuminance distribution on a lamp surface of the LED linear lamp optical system according to the present utility model.

Fig. 26 is a schematic view of an irradiation angle achieved by the LED linear lamp optical system according to the present utility model.

FIG. 27 is a schematic view of the illumination angle achieved by the LED linear lamp optical system according to the present utility model

Fig. 28 is a schematic three-dimensional structure of an LED lamp according to the present utility model.

Fig. 29 is a schematic three-dimensional structure of the LED lamp (hidden radiator) according to the present utility model.

Icon: 1-lens plate, 11-lens, 12-lens fly's eye, 2-light collector, 21-light collecting unit, 3-light controller, 31-light controlling unit, 32-fly's eye structure, 4-polarizing optical sheet, 41-single polarizing optical sheet, 411-Fresnel lens, 42-double polarizing optical sheet, 421-double polarizing microstructure, 422-bead strip, 5-dodging optical sheet, 51-bead microstructure, 6-LED light source, 7-radiator, 8-end plate.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 2-5, an LED linear lamp optical system includes a first light distribution component and a second light distribution component, where the first light distribution component includes a light collector 2 and a light controller 3, the light collector includes a plurality of light collecting units 21 that are linearly arranged, each light collecting unit 21 is used for mounting at least one LED light source 6, the light controller 3 includes a plurality of light controlling units 31 that are linearly arranged, the light collecting units 21 and the light controlling units 31 are in one-to-one correspondence, and the light controlling units 31 cover the light emitting surface of the light collecting units 21. The second light distribution component comprises a polarized light optical sheet 4 or a dodging optical sheet 5, and is arranged on the light emergent side of the first light distribution component.

The closer the distance between the first light distribution part and the second light distribution part is, the better the distance between the first light distribution part and the second light distribution part is, so that the smaller the overall size of the lamp is, the more material saving is facilitated, the processing cost is reduced, and the flexibility of the installation of the optical system is also improved. Preferably, the minimum distance between the first light distribution part and the second light distribution part is less than or equal to 10mm. Further preferably, a minimum distance between the first light distribution member and the second light distribution member is less than or equal to 6mm.

Further, as shown in fig. 6-9, the light collecting unit 21 and the light controlling unit 31 have the following structural forms:

(1) The light collecting unit 21 is a reflective cup, the light controlling unit 31 is a convex lens or a fresnel lens, and the light collecting unit 21 and the light controlling unit 31 are adhered or clamped.

(2) The light collecting unit 21 is a reflecting lens, the light control unit 31 is a convex lens or a fresnel lens, and the light collecting unit 21 and the light control unit 31 are an integral injection molding structural member.

The LED linear lamp optical system is divided into a plurality of independent illumination areas, each illumination area is provided with an independent light collecting unit 21 and an independent light control unit 31, each light collecting unit 21 corresponds to each light control unit 31 one by one, light energy of an LED light source is collected through the light collecting unit 21, and then the light energy is emitted through the corresponding light control unit 31. Thus, 1 light collecting unit 21 and 1 light control unit 31 form 1 independent illumination area, and light emitted by each LED light source 6 is guaranteed to be controlled, so that uniformity of the light is greatly improved, as shown in fig. 10, light spots with good uniformity are refracted out of the lamp through the second light distribution component (polarizing optical sheet or light homogenizing optical sheet), and the light spots are further enabled to be smooth.

In addition, under the condition that the first light distribution part is kept unchanged, the utility model can carry out light homogenization or polarization by only changing the shape or the size of the second light distribution part (the polarization optical sheet or the light homogenization optical sheet) and the like, so as to obtain different light distribution effects, and further can further meet the use requirements of different lamps. Therefore, batch production can be realized, the processing cost is further reduced, and the method has remarkable economic benefit.

Further, the reflecting surface of the light collecting unit 21 is a straight surface or preferably, may be designed as a reverse arc surface, as shown in fig. 10. That is, in the side view, the included angle between the tangent line of the reflecting surface and the central axis is smaller than the included angle between the connecting line of the two end points and the central axis, and the circle center of the reflecting surface faces to the outside.

The anti-arc design can coincide the light reflected by the light collecting unit 21 with the light not reflected by the light collecting unit 21, and can obtain nearly uniform light energy distribution.

Further, the light control unit 31 is provided with a compound eye structure 32. The compound eye structure may be disposed on the incident surface, the reflecting surface or the emitting surface of the light control unit 31. The compound eye structure can be a convex or concave bead surface microstructure. Through setting up pearl face micro-structure, can make reflection light and unreflected light energy more even combine together, improve the homogeneity of light for obtain more even facula on the diaphragm.

As shown in fig. 24-25, compared with the conventional total reflection lens, the illumination distribution of the LED linear lamp light system of the present utility model is more uniform, the uniformity of light is significantly improved, and the whole lamp is free from glare.

With 3030 light source, the LED spacing is about 16mm, the width of the optical system is 20mm and the height is 25mm, and by replacing the second, different light distribution component, an optical illumination as shown in fig. 26-27 can be achieved.

Example 2

As shown in fig. 11 to 14, in this embodiment, on the basis of embodiment 1, the polarizing optical sheet 4 is further defined as a single polarizing optical sheet 41, and a fresnel lens 411 is disposed on an a-plane of the single polarizing optical sheet 41, and the fresnel lens 411 can deflect light, so that a light spot with better uniformity is refracted out of the lamp. Preferably, the B-side of the single-polarization optical sheet 41 may further have a rib or a frosted structure, which has a further light-homogenizing effect, as shown in fig. 15.

Example 3

As shown in fig. 16 to 18, this embodiment further defines the polarizing optical plate 4 as a double polarizing optical plate 42 on the basis of embodiment 1. One surface of the dual-polarization optical sheet 42 is provided with a dual-polarization microstructure 421, the dual-polarization microstructure 421 is a semicircular or conical strip-shaped protrusion, the cross section of the dual-polarization microstructure 421 is an axisymmetric structure, and the dual-polarization microstructure 421 has two symmetrical light distribution surfaces, thereby realizing the dual-polarization effect. It is further preferable that the rib 422 is disposed on the other surface of the dual-polarized optical sheet 42, and the diameter of the dual-polarized microstructure 421 is larger than the diameter of the rib 422. The double polarization microstructure 421 is responsible for polarization, and the rib 422 is responsible for uniform light, as shown in fig. 19.

Example 4

As shown in fig. 20 to 22, on the basis of embodiment 1, this embodiment is further defined as a light homogenizing optical sheet 5, where the light homogenizing optical sheet 5 includes a rib microstructure 51 disposed on one or both sides of the film, and the rib microstructure 51 is a linear arrangement of stripe-shaped protrusions. The convex rib microstructures 51 can be made into different radii and sizes, so as to realize different light homogenizing effects, and of course, one surface of the convex rib microstructures can be directly provided with frosting, so that the light spots can be further homogenized, as shown in fig. 23.

Example 5

As shown in fig. 28-29, an LED lamp comprises an LED linear lamp optical system according to any of embodiments 1-4, preferably, the light collector 2 and the light controller 3 are integrated on a sheet, and the polarizing optical sheet 4 or the dodging optical sheet 5 is inserted into the heat sink 7 or the end plate 8. The LED lamp can be used for indoor linear lamps, outdoor brightening wall washing lamps and the like, and the uniformity of light rays emitted by the lamp can be greatly improved, so that the whole lamp is free from dazzling problems.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (13)

1. The utility model provides a LED linear lamp optical system, its characterized in that includes first grading part and second grading part, first grading part includes light collector (2) and accuse light ware (3), the light collector includes light collecting unit (21) that the linearity was arranged, every light collecting unit (21) are used for installing at least one LED light source (6), accuse light ware (3) include light control unit (31) that the linearity was arranged, light collecting unit (21) with accuse light unit (31) one-to-one, second grading part includes polarized light optical piece (4) or even optical piece (5), second grading part set up in the light-emitting side of first grading part.

2. An LED linear lamp optical system according to claim 1, characterized in that the polarizing optical sheet (4) is a single polarizing optical sheet (41) or a double polarizing optical sheet (42).

3. An LED linear lamp optical system according to claim 2, characterized in that the single polarization optical sheet (41) comprises a fresnel lens (411) arranged on one side of the membrane.

4. A LED linear lamp optical system according to claim 3, characterized in that the single polarization optical sheet (41) further comprises a bead or frosted structure provided on the other side of the membrane.

5. An LED linear lamp optical system according to claim 2, characterized in that the double-polarizing optical sheet (42) comprises a double-polarizing microstructure (421) arranged on one side of the film, the double-polarizing microstructure (421) is a bar-shaped protrusion, and the double-polarizing microstructure (421) has two symmetrical light distribution surfaces.

6. The LED linear lamp optical system of claim 5, wherein said dual-polarizing optical sheet (42) further comprises a bead (422) or a frosted structure provided on the other surface of the film sheet, said bead (422) having a diameter smaller than that of said dual-polarizing microstructure (421).

7. An LED linear lamp optical system according to claim 1, characterized in that the light homogenizing optical sheet (5) comprises a rib microstructure (51) arranged on one or both sides of the film sheet, the rib microstructure (51) being a bar-shaped structure and being arranged linearly.

8. The LED linear lamp optical system of claim 1, wherein the minimum distance between the first light distribution member and the second light distribution member is less than or equal to 10mm.

9. The LED linear lamp optical system of claim 8, wherein the minimum distance between the first light distribution member and the second light distribution member is less than or equal to 6mm.

10. An LED linear lamp optical system according to any of claims 1-9, characterized in that the light collecting unit (21) is a reflective cup or a reflective lens, the light controlling unit (31) is a convex lens or a fresnel lens, and the light controlling unit (31) covers the light exit surface of the light collecting unit (21).

11. An LED linear lamp optical system according to claim 10, characterized in that the light collecting unit (21) and the light controlling unit (31) are an integrally injection molded structure.

12. An LED linear lamp optical system according to claim 10, characterized in that the reflecting surface of the light collecting unit (21) is a straight or a reverse arc surface, and the light controlling unit (31) is provided with a compound eye structure (32).

13. An LED luminaire comprising an LED linear lamp optical system as claimed in any one of claims 1-12.