CN111720800A - Kepler type light beam imaging pattern lamp - Google Patents
Kepler type light beam imaging pattern lamp Download PDFInfo
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- CN111720800A CN111720800A CN202010692936.0A CN202010692936A CN111720800A CN 111720800 A CN111720800 A CN 111720800A CN 202010692936 A CN202010692936 A CN 202010692936A CN 111720800 A CN111720800 A CN 111720800A
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- crystal display
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/003—Controlling the distribution of the light emitted by adjustment of elements by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
A Kepler type light beam imaging pattern lamp comprises a shell and a built-in assembly, wherein the built-in assembly sequentially comprises a light source assembly, a condenser lens assembly, a liquid crystal display assembly, an electronic refrigeration assembly and a light collecting lens assembly; the liquid crystal display assembly comprises a liquid crystal display screen, and a micro temperature sensor is arranged around the liquid crystal display screen; the electronic refrigeration component is a semiconductor refrigeration piece; the liquid crystal display component and the electronic refrigeration component are fixed through the heat conducting plate and are respectively embedded in the upper mounting cavity and the lower mounting cavity of the heat conducting plate; the side surface of the shell is provided with a control module which is respectively and electrically connected with the liquid crystal display assembly, the electronic refrigeration assembly and the power supply. The invention realizes the integrated design of the beam lamp and the pattern lamp; the method comprises the following steps of utilizing a transparent liquid crystal screen to realize beam angle change and pattern form change, and directly writing pattern source data into a transparent liquid crystal screen control module to realize rapid display and rapid pattern correction; the heat conducting plate and the electronic refrigeration piece are added to serve as cooling devices of the transparent liquid crystal screen, so that the temperature resistance problem of the liquid crystal screen is effectively solved.
Description
Technical Field
The invention relates to the technical field of pattern lamps, in particular to a Kepler type light beam imaging pattern lamp with abundant projection patterns and freely switched patterns.
Background
The pattern lamp utilizes the principle of optical lens projection, adopts various high-brightness and high-power light sources, realizes the amplified projection imaging effect of images by irradiating film patterns, hollow metal patterns or glass patterns, can project and image patterns, characters and the like on a target surface, can project the latest originality, the latest sales promotion information and the latest product display of a merchant on walls and floors in a light form, and can print patterns which are in accordance with the scene or the season atmosphere on the places to increase or strengthen the scene effect and bring a brand-new happy or happy feeling to people.
In recent years, with the development of the lighting market, the requirements on the beam, the pattern definition, the brightness, the uniformity and the light form are more and more; the conventional product has large angle, deformed pattern, and unchangeable pattern and light form. The existing pattern lamp generally adopts film patterns, hollow metal patterns and glass patterns, has the defect of single pattern, and even if the pattern switching of partial products is realized through mechanical control, the number of the projected patterns is also the index number. In addition, after the mechanical control pattern is added for switching, the components are heated and heated in the trial process, so that the service life of the loss reducing component is only prolonged, and the pattern display effect is influenced.
Therefore, a pattern lamp with abundant projected patterns, freely switched patterns and automatic temperature reduction and control is needed.
Disclosure of Invention
The invention aims to provide a Kepler type light beam imaging pattern lamp, and aims to solve the technical problems that in the prior art, a conventional light beam projection lamp or a pattern lamp respectively exists as a single product, the zooming precision is not high, the pattern fineness is not high, the pattern form cannot be randomly changed and the large-batch production is not suitable due to the fact that light spots and form change are realized through electronic mechanical zooming and manual zooming, and after mechanical control is added to switch patterns, components are heated and heated in the trial process, the service life of the components is reduced, and the pattern display effect is influenced.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a kepler formula beam imaging pattern lamp, includes casing and built-in subassembly, its characterized in that: the built-in assembly sequentially comprises a light source assembly, a condenser lens assembly, a liquid crystal display assembly, an electronic refrigeration assembly and a light collecting lens assembly; the condenser lens group comprises a plurality of stages of condenser lenses and corresponding fixing pieces; the liquid crystal display assembly comprises a liquid crystal display screen, and a micro temperature sensor is arranged around the liquid crystal display screen; the electronic refrigeration component is a semiconductor refrigeration piece, and the center of the electronic refrigeration component is provided with a light through hole; the liquid crystal display assembly and the electronic refrigeration assembly are fixed through heat conducting plates, the middle position of each heat conducting plate is of a three-layer heat conducting plate structure, an upper mounting cavity and a lower mounting cavity are formed, the liquid crystal display assembly is embedded in the lower mounting cavity, and the electronic refrigeration assembly is embedded in the upper mounting cavity; the centers of the three heat-conducting plate structures are respectively provided with a light through hole; the light collecting lens group comprises a plurality of stages of collecting lenses and corresponding fixing pieces; the top of the shell is provided with a light outlet, the side surface of the shell is provided with an electrical box, a power supply and a control module are arranged in the electrical box, and the control module is respectively and electrically connected with the liquid crystal display assembly, the electronic refrigeration assembly and the power supply; light rays are emitted from the light source component, are condensed by the condenser lens group, are emitted to the liquid crystal display component from the light through hole in the center of the bottom of the heat conducting plate, then form parallel light rays through the light collecting lens group, and are emitted to a target surface from the light emitting hole to display patterns on the liquid crystal display component.
The control module comprises a liquid crystal screen pattern display control module and a temperature control module; the liquid crystal screen pattern display control module is electrically connected with the liquid crystal display assembly and used for controlling the size and the shape of a luminous pattern on the liquid crystal display screen; the temperature control module is respectively electrically connected with the electronic refrigeration component and the micro temperature sensor of the liquid crystal display component, and the temperature control of the liquid crystal display component is realized through the heat conduction among the liquid crystal display component, the heat conducting plate and the electronic refrigeration component.
Preferably, the liquid crystal display screen of the liquid crystal display component is a transparent display screen, the area of the transparent display screen corresponding to the light through hole of the heat conducting plate is divided into a light transmitting area and a light absorbing area, and the set of the light transmitting areas is the pattern to be projected; the light irradiated on the light-transmitting area passes through the liquid crystal display screen and is finally projected to a target surface, and the light irradiated on the light-absorbing area is absorbed by the transparent display screen.
As a preselected technical scheme of the invention, the heat conducting plate is a high heat conducting copper plate, the periphery of the heat conducting plate is of a single-layer or upper and lower double-layer copper plate structure, and the heat conducting plate is fixed with the shell through a fixing piece; the liquid crystal display component and the electronic refrigeration component are tightly attached to the heat conducting plate which encloses the installation cavity, so that heat conduction is realized.
More preferably, the condenser lens group includes 2 to 3 positive lenses, which are spherical lenses, aspherical lenses or a combination of spherical lenses and aspherical lenses, and has a refractive index ranging from 1.67 to 1.73 and an abbe number ranging from 28.3 to 55.45.
Preferably, the light collecting lens group comprises a first light collecting lens group, a second light collecting lens group and a light emitting lens group which are sequentially arranged close to the light emitting hole; the first-stage light-collecting lens group, the second-stage light-collecting lens group and the light-emitting lens group respectively comprise 1-3 positive lenses, the positive lenses are spherical lenses or aspheric lenses, the refractive index range of the positive lenses is 1.67-1.73, and the dispersion coefficient range is 28.3-55.45.
Preferably, the fixing member of the light-emitting lens group is a position-adjustable member, which drives the distance between the light-emitting lens group and the liquid crystal display module to be adjusted, thereby playing the role of the focusing lens.
Preferably, all the lenses of the condenser lens group and the condenser lens group are plano-convex lenses, a plane mirror is arranged on the side close to the power supply, and a convex mirror is arranged on the side close to the light exit hole.
Further preferably, the casing is cuboid or cylinder structure, and its casing and internal fixation spare are stainless steel or aluminum product structure, and the support frame is installed to the outside.
More preferably, the light source assembly is arranged at the bottom of the shell and is an LED light source, and a copper substrate at the bottom of the light source assembly is fixedly connected with a radiator arranged on the outer side of the bottom of the shell.
Compared with the prior art, the invention realizes the integrated design of the beam lamp and the pattern lamp, and has the technical advantages that:
1. the liquid crystal display screen is used for realizing the change of beam angle and the change of pattern form, pattern source data are directly written into the transparent liquid crystal screen control module to realize rapid display and rapid pattern correction, the liquid crystal display screen is a transparent display screen and is used for receiving pattern information, and the pattern information is divided into a light-transmitting area and a light-absorbing area after being received, wherein the set of the light-transmitting areas forms a pattern to be projected; when a light source irradiates on the transparent display screen, light irradiating on the light absorption area can be absorbed by the transparent display screen, light irradiating on the light transmission area can penetrate through the transparent display screen and finally be projected on a target surface, light of the light absorption area becomes dark, light of the light transmission area becomes strong, and the contrast ratio is increased, so that the pattern boundary is clearer;
2. the heat conducting plate and the electronic refrigeration piece are added to serve as cooling devices of the transparent liquid crystal screen, so that the temperature resistance problem of the liquid crystal screen is effectively solved, light rays projected by a light source in a light absorption area are absorbed by the transparent display screen and then converted into heat, the temperature of the transparent display screen is overhigh, the integral service life of the transparent display screen and even a projection lamp is influenced, the high heat conducting copper plate and the electronic refrigeration piece are added to serve as cooling devices of the transparent liquid crystal screen, the temperature of the transparent liquid crystal screen is controlled to be below 65 ℃, and the product performance and the service life of the transparent liquid crystal screen are guaranteed;
3. the light condensing module is additionally arranged between the light source and the transparent display screen, so that the technical problem that the light emitted by the light source cannot be completely projected on the transparent display screen, and the pattern projected on the target surface is not clear due to light loss in the process of projecting the light source to the transparent display screen is effectively solved;
4. the invention cooperates with the light collecting lens group through the liquid crystal display component, and adjusts the size and shape of the light hole of the luminous pattern on the liquid crystal display component and the distance between the lens and the liquid crystal display screen and the target surface, thereby ensuring the verticality when the light is projected to the target surface, ensuring the reappearance of the image according to the original geometric proportion, and effectively solving a series of problems generated by imaging distortion.
Drawings
FIG. 1 is a schematic top view of a Kepler-type light beam imaging pattern lamp according to the present invention;
FIG. 2 is a schematic view of the entire bottom structure of a Kepler-type light beam imaging pattern lamp according to the present invention;
FIG. 3 is a schematic view of the internal structure of a Kepler-type light beam imaging pattern lamp according to the present invention;
FIG. 4 is a diagram of the internal optics arrangement of a Keplerian beam imaging pattern lamp according to the present invention;
FIG. 5 is a schematic view of the assembly of the liquid crystal display module and the electronic refrigeration module according to the present invention;
FIG. 6 is a perspective view of a heat-conducting plate according to the present invention;
FIG. 7 is a schematic view of the heat-conducting plate and the shell according to the present invention;
FIG. 8 is a schematic view of the heat transfer between the liquid crystal display assembly, the electronic refrigeration assembly and the heat conductive plate according to the present invention;
FIG. 9 is a schematic view of the light direction of a Kepler-type light beam imaging pattern lamp according to the present invention;
FIG. 10 is a schematic view of a heat sink according to the present invention;
FIG. 11 is a control block diagram of a Kepler-type light beam imaging pattern lamp according to the present invention;
FIG. 12 is a schematic view of a pattern lamp according to the present invention projected horizontally;
FIG. 13 is a schematic view of a pattern lamp according to the present invention projected off a horizontal plane.
Reference numerals: the device comprises a light source component 1, a light-gathering lens component 2, a liquid crystal display component 3, a miniature temperature sensor 3.1, an electronic refrigeration component 4, a light-receiving lens component 5, a primary light-receiving component 5.1, a secondary light-receiving component 5.2, a light-emitting component 5.3, a light-emitting port 6, a shell 7, a support frame 8, an electrical appliance box 9, a power supply 9.1, a liquid crystal display control module 9.2, a refrigeration control module 9.3, a radiator 10 and a heat-conducting plate 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the keplerian light beam imaging pattern lamp according to the present invention includes a housing 7 and a built-in component, wherein the housing 7 is a rectangular or cylindrical structure, the housing and the internal fixing member are stainless steel or aluminum structures, and a support frame 8 is installed on the outer side. The built-in assembly sequentially comprises a light source assembly 1, a condenser lens assembly 2, a liquid crystal display assembly 3, an electronic refrigeration assembly 4 and a light collecting lens assembly 5; the light source assembly 1 is arranged at the bottom of the shell 7 and is an LED light source, and a copper substrate at the bottom of the light source assembly is fixedly connected with a radiator 10 on the outer side of the bottom of the shell 7.
As shown in fig. 3 and 4, the condenser lens group 2 includes several stages of condenser lenses and corresponding fixing members; the condenser lens assembly 2 includes 2-3 positive lenses, which are spherical lenses, aspherical lenses or a combination of spherical lenses and aspherical lenses. The embodiment comprises 3 pieces of condensing lenses and corresponding fixing pieces, wherein the condensing lenses can be spherical lenses or aspherical lenses or a combination of spherical lenses and aspherical lenses, preferably the aspherical lenses are adopted, and the adopted optical glass can be optical glass with low refractive index and high dispersion coefficient, such as H-K9L (N-K9L)d＝1.5168，Vd64.2) or an optical glass with high refractive index and low dispersion coefficient such as H-ZF4Nd＝1.72828，VdHigh index optical glass is preferred for 28.32.
The liquid crystal display assembly 3 comprises a liquid crystal display screen, and a micro temperature sensor is arranged around the liquid crystal display screen; the liquid crystal display screen of the liquid crystal display component 3 is a transparent display screen, the area of the liquid crystal display screen corresponding to the light through hole of the heat conducting plate 11 is divided into a light transmitting area and a light absorbing area, and the set of the light transmitting areas is the pattern to be projected; the transparent display screen is used for receiving pattern information, and the pattern information is divided into a light transmitting area and a light absorbing area after being received, wherein the set of the light transmitting area forms a pattern to be projected; when the light source irradiates on the transparent display screen, the light irradiating on the light absorption area can be absorbed by the transparent display screen, and the light irradiating on the light transmission area can penetrate through the transparent display screen and finally be projected on a target surface.
As shown in fig. 5-7, the liquid crystal display component 3 and the electronic refrigeration component 4 are fixed by the heat conducting plate 11, the middle position of the heat conducting plate 11 is a three-layer heat conducting plate structure, forming an upper mounting cavity and a lower mounting cavity, the liquid crystal display component 3 is embedded in the lower mounting cavity, and the electronic refrigeration component 4 is embedded in the upper mounting cavity; the centers of the three heat-conducting plate structures are respectively provided with a light through hole; the heat conducting plate 11 is a high heat conducting red copper plate, the heat conducting coefficient is 386.4w/(m.k), the resistivity (at 20 ℃) is 0.018 omega-mm 2/m, the thickness is 2mm, the periphery of the heat conducting plate is of a single-layer or upper and lower double-layer copper plate structure, the heat conducting plate is fixed with the shell 7 through a fixing piece, and the heat conducting plate is combined with a stainless steel or aluminum shell in a riveting and pressing mode to conduct relevant heat to the shell. The liquid crystal display component 3 and the electronic refrigeration component 4 are tightly attached to the heat-conducting plate which encloses the installation cavity to realize heat conduction.
As shown in fig. 8, the electronic refrigeration component 4 is a semiconductor refrigeration sheet, the center of which is provided with a light through hole, the semiconductor refrigeration sheet is formed by mutually arranging a plurality of N-type and P-type semiconductor particles, the N-type material has redundant electrons and has negative temperature difference potential, the P-type material has insufficient electrons and has positive temperature difference potential; when electrons travel from the P-type to the N-type through the junction, the temperature of the junction decreases, the energy thereof necessarily increases, and the increased energy corresponds to the energy consumed by the junction. Conversely, as electrons flow from the N-type to the P-type material, the temperature of the junction increases. A P-type semiconductor element and an N-type semiconductor element are connected into a pair of thermocouples, and after a direct current power supply is connected, temperature difference and heat transfer are generated at joints, wherein at the joints, the current direction is from N to P, the temperature is reduced and heat is absorbed, and the cold ends are formed; at the lower joint, the current direction is from P to N, the temperature rises and the heat is released, so that the hot end is formed, the N/P are connected by a common conductor to form a complete circuit, usually copper, aluminum or other metal conductors, and finally two ceramic plates are clamped like a sandwich biscuit, and the ceramic plates must be insulated and have good heat conduction. The electronic refrigeration piece adopts an electronic refrigeration device manufactured by a semiconductor refrigeration principle. The heat conduction diagram of the product of the invention is shown as 9, and the specific steps are as follows: 1) heat generated by the transparent liquid crystal display is conducted to the heat conducting copper plate; 2) the heat conducting copper plate conducts the absorbed heat to the refrigerating surface of the electronic refrigerating module; 3) the other side of the heat transfer module of the electronic refrigeration module is transferred to a heat conduction copper plate through N-type electrons and P-type electrons; 4) the heat conducting copper plate 2 transfers the heat to the structural shell.
The light collecting lens group 5 comprises a plurality of stages of collecting lenses and corresponding fixing pieces; the light collecting lens group 5 comprises a first-stage light collecting lens group 5.1, a second-stage light collecting lens group 5.2 and a light emitting lens group 5.3 which are sequentially arranged close to the light outlet 6. The first-stage light collecting lens group 5.1, the second-stage light collecting lens group 5.2 and the light outlet lens group 5.3 respectively comprise 1-3 positive lenses, and the positive lenses are spherical lenses or aspheric lenses. The fixing piece of the light-emitting lens group 5.3 is a position-adjustable component, and drives the distance between the light-emitting lens group 5.3 and the liquid crystal display component 3 to be adjusted, so that the function of the focusing lens is exerted.
The primary light-receiving lens group 5.1 consists of a primary light-receiving lens group and a structural member for fixing the primary light-receiving lens group. The primary light collecting lens group can be a piece of optical glass lens or a combination of a plurality of pieces of optical glass lenses, the surface type of the optical glass lens can be a spherical surface type or an aspheric surface type, and the spherical surface type is preferably adopted; the first-order light-collecting lens group can be made of optical glass with low refractive index and high dispersion coefficient, or made of optical glass with high refractive index and low dispersion coefficient, preferably made of optical glass with low refractive index and high dispersion coefficient, such as H-K9L (N-K9L)d＝1.5168，Vd＝64.2)。
The second light collecting lens module 5.2 consists of a second light collecting lens group and a structural member for fixing the second light collecting lens group. The secondary light collecting lens group can be a piece of optical glass lens or a combination of a plurality of pieces of optical glass lenses, the surface type design of the optical glass lens can be a spherical surface type design or an aspheric surface type design, and the spherical surface type design is preferably adopted; the optical glass used in the secondary collecting lens group can be a material with low refractive index and high dispersion coefficient, a material with high refractive index and low dispersion coefficient, or a combination of low refractive index and high dispersion coefficient and high refractive index and low dispersion coefficient, preferably a combination of low refractive index and high dispersion coefficient, such as optical glass H-K9L (N-K9L)d＝1.5168，Vd64.2) and H-ZF4 (N)d＝1.72828，Vd28.32).
The light-emitting lens group 5.3 consists of a light-emitting lens group and a structural member for fixing the light-emitting lens group. The light-emitting lens group can be an optical glass lens or a combination of a plurality of optical glass lenses, the surface type design of the optical glass lens can be a spherical surface type design or an aspherical surface type design, and the spherical surface type design is preferably adopted; the optical glass used in the light-exiting lens group can be a material with low refractive index and high dispersion coefficient, a material with high refractive index and low dispersion coefficient, or a combination of the material with low refractive index and high dispersion coefficient, preferably the material with low refractive index and high dispersion coefficient, such as optical glass H-K9L (N-K9L)d＝1.5168，Vd＝64.2)。
In addition, the light-emitting lens group can also be used as a focusing lens, and the distance D from the light-emitting lens group 5.3 to the light-passing hole or the pattern is adjusted, so that when the distance F between the target surface and the light-emitting lens group 5.3 is different, the image of the clear visible through hole or the pattern can be obtained on the 15 target surface. In this embodiment, all the lenses of the condenser lens assembly 2 and the condenser lens assembly 5 are plano-convex lenses, and the side thereof close to the power supply is a plane mirror, and the side thereof close to the light exit is a convex mirror.
The top of the shell 7 is provided with a light outlet 6, the side surface of the shell is provided with an electric box 9, a power supply and a control module are arranged in the electric box 9, and the control module is respectively and electrically connected with the liquid crystal display component 3, the electronic refrigeration component 4 and the power supply. The shell 7 also comprises toughened glass, a face cover, a waterproof rubber ring, a shell, a power box and various lens fixing supports; the shell is a hollow structure, the shell is provided with a first port and a second port, the surface cover is fixed on the first port, the radiator is fixed on the second port, and the radiator structure is as shown in fig. 9; the light source, the condensing lens, the waterproof rubber ring and the lens fixing support are all positioned in the shell; the toughened glass is arranged on the face cover; a waterproof rubber ring is arranged between the surface cover and the shell; the power supply box is arranged on the shell; the bracket is fixed on the shell; the lens fixing support is used for fixing a specified condensing lens; a waterproof rubber ring is arranged between the shell and the radiator.
As shown in fig. 10, the condensing lens assembly 2 focuses light emitted from the light source assembly 1 to a position where a light hole of the heat conducting plate 11 or a pattern of the liquid crystal display is located, the first-stage light collecting lens assembly 5.1 performs first-stage light collection on the light passing through the light hole or the pattern position, so as to reduce a beam angle, the second-stage light collecting lens assembly 5.2 performs second-stage light collection on a light beam emitted from the first-stage light collecting lens assembly 5.1, so as to further reduce a beam angle, and the light emitting lens assembly 5.3 performs third-stage light collection on the light beam emitted from the second-stage light collecting lens assembly 5.2, and projects the light beam onto a target surface. The pattern on the liquid crystal display module 3 is finally displayed.
The optical module has the advantage that light emitted by the light source is efficiently taken out through the design of the plurality of lenses of the condenser. The light effect is converged at the position of the light through hole or the pattern, and then the light beams are gradually reduced in a grading manner through the combined design of a plurality of groups of lenses, so that the light through hole or the pattern projected on the target surface is clear, visible and free of chromatic aberration. The output light effect is high, and the light beam angle is small by 1.5-2 degrees. The target surface may be any object surface and the preferred distance F to the exit lens set 5.3 is 3 m to 500 m.
As shown in fig. 11, the control module includes a liquid crystal screen pattern display control module and a temperature control module; the liquid crystal screen pattern display control module is electrically connected with the liquid crystal display assembly 3 and is used for controlling the size and the shape of a light-emitting pattern on the liquid crystal display screen, and the method for realizing the light beam angle change by utilizing the transparent liquid crystal display screen is not repeated here; the temperature control module is respectively electrically connected with the electronic refrigeration component 4 and the micro temperature sensor 3.1 of the liquid crystal display component 3, and the temperature control of the liquid crystal display component 3 is realized through the heat conduction among the liquid crystal display component 3, the heat conduction plate 11 and the electronic refrigeration component 4. The specific action mode of the control module is the existing mature technology, and is not described herein again.
In addition, the invention cooperates with lens group of light collection through the liquid crystal display assembly, adjust the photic hole size and shape of the shiny pattern on the liquid crystal display assembly synergistically, and the lens, liquid crystal display, distance of target surface, guarantee the verticality when the light projects to the target surface, guarantee the image is reproduced according to the original geometric proportion, solve a series of problems that the imaging distortion produces effectively.
The image of the imaged product is projected onto the application surface in a position that is ideally perpendicular to the plane, thus ensuring that the image is reproduced at the original geometric scale. However, in practical application of imaging products, the imaging products are limited by installation positions and projection distances, and are installed at a certain angle with respect to a horizontal plane. The existence of such an angle causes a certain imaging distortion, and the distortion of the image causes a series of problems. Aiming at the problem caused by image distortion, the image form needs to be adjusted by applying a correction algorithm of the image distortion; according to the linear light propagation characteristics, an image is distorted when light forms a certain included angle with the horizontal direction.
As shown in fig. 12 and 13, the pattern lamp in fig. 12 is horizontally disposed, the pattern lamp in fig. 13 is disposed in an upward inclined manner, the left side parts of the two figures are projection side views, the right side is a front view, O is a light outlet of the lamp, a is a light outlet angle, M is an imaging center, h is an imaging projection distance, OM is an imaging projection center distance, a is an outermost point on the right side of the bottom of the image, C is an outermost point on the left side of the bottom of the image, B is an outermost point on the top of the image, D is an outermost point on the top of the left side of the image, E is a bottom center point of the.
The imaging pattern distortion is mainly two kinds, i.e., transverse distortion and longitudinal distortion, and the longitudinal distortion relationship is derived by the following set of equations:
a ═ M-tan (α/2) × h (one)
B ═ M + tan (α/2) × h (two)
M' ═ M + tan (β) × h (three)
When (α/2) ≧ β:
when (. alpha./2) < beta:
in the above formulas (one) to (seven), A, A 'is the y-axis coordinate values of the bottom right outermost point a and point a', B, B 'is the y-axis coordinate values of the top right outermost point B and point B', M, M 'is the y-axis coordinate values of the imaging center point M and point M', h is the imaging projection distance, a is the light-emitting angle, and β is the angle of the pattern lamp in fig. 13 offset from the horizontal plane.
The lateral distortion relationship is derived as follows:
c ' E ═ E ' a ' (eleven)
D ' F ═ F ' B ' (twelve)
In the above formulas (eight) to (fourteen), A, A 'is the x-axis coordinate values of the bottom right outermost point a and point a', B, B 'is the x-axis coordinate values of the top right outermost point B and point B', C, C 'is the x-axis coordinate values of the bottom right outermost point C and point C', D, D 'is the x-axis coordinate values of the bottom right outermost point D and point D', M, M 'are the x-axis coordinate values of the imaging center point M and point M', respectively, h is the imaging projection distance, a is the light exit angle, and β is the angle at which the pattern lamp in fig. 13 is offset from the horizontal plane.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (10)
1. A Kepler-type beam imaging pattern lamp, comprising a housing (7) and a built-in assembly, characterized in that: the built-in component sequentially comprises a light source component (1), a condenser lens group (2), a liquid crystal display component (3), an electronic refrigeration component (4) and a light collecting lens group (5);
the condenser lens group (2) comprises a plurality of stages of condenser lenses and corresponding fixing pieces;
the liquid crystal display component (3) comprises a liquid crystal display screen, and a micro temperature sensor (3.1) is arranged around the liquid crystal display screen;
the electronic refrigeration component (4) is a semiconductor refrigeration piece, and a light through hole is formed in the center of the electronic refrigeration component;
the liquid crystal display component (3) and the electronic refrigeration component (4) are fixed through a heat conduction plate (11), the middle position of the heat conduction plate (11) is of a three-layer heat conduction plate structure to form an upper installation cavity and a lower installation cavity, the liquid crystal display component (3) is embedded in the lower installation cavity, and the electronic refrigeration component (4) is embedded in the upper installation cavity; the centers of the three heat-conducting plate structures are respectively provided with a light through hole;
the light collecting lens group (5) comprises a plurality of stages of collecting lenses and corresponding fixing pieces;
the top of the shell (7) is provided with a light outlet (6), the side surface of the shell is provided with an electrical box (9), a power supply (9.1) and a control module are arranged in the electrical box (9), and the control module is electrically connected with the liquid crystal display assembly (3), the electronic refrigeration assembly (4) and the power supply respectively;
light rays are emitted from the light source component (1), are condensed by the condensing lens group (2), and then are emitted to the liquid crystal display component (3) from the light through hole in the center of the bottom of the heat conducting plate (11), and then form parallel light rays through the light collecting lens group (5), and the parallel light rays are emitted to a target surface from the light emitting hole (6) to display patterns on the liquid crystal display component (3).
2. The keplerian beam imaging pattern lamp of claim 1, wherein: the control module comprises a liquid crystal screen pattern display control module (9.2) and a temperature control module (9.3);
the liquid crystal screen pattern display control module is electrically connected with the liquid crystal display assembly (3) and is used for controlling the size and the shape of a luminous pattern on the liquid crystal screen;
the temperature control module is respectively electrically connected with the electronic refrigeration component (4) and the micro temperature sensor of the liquid crystal display component (3), and the temperature control of the liquid crystal display component (3) is realized through heat conduction among the liquid crystal display component (3), the heat conduction plate (11) and the electronic refrigeration component (4).
3. The keplerian beam imaging pattern lamp of claim 1, wherein: the liquid crystal display screen of the liquid crystal display component (3) is a transparent display screen, the area of the liquid crystal display screen corresponding to the light through hole of the heat conducting plate (11) is divided into a light transmitting area and a light absorbing area, and the set of the light transmitting areas is the pattern to be projected; the light irradiated on the light-transmitting area passes through the liquid crystal display screen and is finally projected to a target surface, and the light irradiated on the light-absorbing area is absorbed by the transparent display screen.
4. The keplerian beam imaging pattern lamp of claim 1, wherein: the heat conducting plate (11) is a high heat conducting copper plate, the periphery of the heat conducting plate is of a single-layer or upper and lower double-layer copper plate structure, and the heat conducting plate is fixed with the shell (7) through a fixing piece; the liquid crystal display component (3) and the electronic refrigeration component (4) are tightly attached to the heat conducting plate which encloses the installation cavity, so that heat conduction is realized.
5. The keplerian beam imaging pattern lamp of claim 1, wherein: the condenser lens group (2) comprises 2-3 positive lenses, wherein the positive lenses are spherical lenses, aspheric lenses or a combination of the spherical lenses and the aspheric lenses, the refractive index range of the positive lenses is 1.67-1.73, and the dispersion coefficient range of the positive lenses is 28.3-55.45.
6. The keplerian beam imaging pattern lamp of claim 1, wherein: the light-receiving lens group (5) comprises a primary light-receiving lens group (5.1), a secondary light-receiving lens group (5.2) and a light-emitting lens group (5.3) which are sequentially arranged close to the light-emitting hole (6); the first-stage light-collecting lens group (5.1), the second-stage light-collecting lens group (5.2) and the light-emitting lens group (5.3) respectively comprise 1-3 positive lenses, the positive lenses are spherical lenses or aspheric lenses, the refractive index range of the positive lenses is 1.67-1.73, and the dispersion coefficient range is 28.3-55.45.
7. The keplerian beam imaging pattern lamp of claim 5, wherein: the fixing piece of the light-emitting lens group (5.3) is a position-adjustable component, and drives the distance between the light-emitting lens group (5.3) and the liquid crystal display assembly (3) to be adjusted, so that the function of the focusing lens is exerted.
8. The keplerian beam imaging pattern lamp of claim 1, wherein: all lenses of the condensing lens group (2) and the light collecting lens group (5) are plano-convex lenses, the side of the plano-convex lenses close to the power supply is a plane mirror, and the side of the plano-convex lenses close to the light outlet is a convex mirror.
9. The keplerian beam imaging pattern lamp of claim 1, wherein: casing (7) are cuboid or cylinder structure, and its casing and interior mounting are stainless steel or aluminum product structure, and support frame (8) are installed to the outside.
10. The keplerian beam imaging pattern lamp of claim 1, wherein: the light source assembly (1) is arranged at the bottom of the shell (7) and is an LED light source, and a copper substrate at the bottom of the light source assembly is fixedly connected with a radiator (10) arranged on the outer side of the bottom of the shell (7).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692936.0A CN111720800B (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
| CN202111283735.6A CN113983426A (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692936.0A CN111720800B (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111283735.6A Division CN113983426A (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
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| CN111720800A true CN111720800A (en) | 2020-09-29 |
| CN111720800B CN111720800B (en) | 2021-11-30 |
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| CN202010692936.0A Active CN111720800B (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
| CN202111283735.6A Pending CN113983426A (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111283735.6A Pending CN113983426A (en) | 2020-07-17 | 2020-07-17 | Kepler type light beam imaging pattern lamp |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111720800B (en) | 2021-11-30 |
| CN113983426A (en) | 2022-01-28 |
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