CN220707158U

CN220707158U - Reflection and refraction high-light-efficiency combined lamp cup

Info

Publication number: CN220707158U
Application number: CN202321133910.8U
Authority: CN
Inventors: 冯光友
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2024-04-02
Anticipated expiration: 2033-05-12

Abstract

The utility model relates to a reflection and refraction high-light-efficiency combined lamp cup, which comprises a reflection cup, wherein one end of the reflection cup is provided with a cup opening, the other end of the reflection cup is provided with a cup bottom, and an LED light source is arranged in the cup bottom; a lens bracket is arranged on one side of the reflective cup, which is close to the bottom of the cup, and a lens is arranged on the lens bracket; the lens includes one of a convex lens, a fresnel lens and a spiral fly-eye lens. The integral structure design of the utility model has the advantages of uniform light spots, no auxiliary light spots, no chromatic aberration and good condensation effect, so that the light efficiency utilization rate of the LED light source is exerted to the greatest extent, and the problems of stray light intensity, non-uniform light spots, poor condensation effect, large light color difference, low light efficiency utilization rate of the light source, enlarged optical structure, long optical structure, complex installation structure, high manufacturing cost, energy saving and environmental protection and space occupation caused by the unscientific and reasonable installation structure of the lenses and the reflector lamp cups in the market at present are effectively solved.

Description

Reflection and refraction high-light-efficiency combined lamp cup

Technical Field

The utility model relates to the field of illumination, in particular to a reflection and refraction high-light-efficiency combined lamp cup.

Background

The light distribution of products such as LED directional illumination, a spotlight, a flashlight and the like in the market at present mainly comprises a single reflecting cup or a condensing lens, and the light distribution of small-angle uniformity is difficult to realize on the light distribution due to the fact that the light emitting surface of the COB light source plate is large in some lamps using the single COB light source plate. The reflector lamp on the market mainly comprises a lamp shade and a convex lens sheet, wherein the lamp shade is internally provided with a reflecting cup, the convex lens sheet is connected with the reflecting cup through a pressing ring at the front end of the lamp shade, and the convex lens sheet is used for carrying out compound light distribution with the reflecting cup. In addition, when the lens is mounted at the front end of the lamp cup or the opening of the lamp cup, the whole optical structure becomes larger and longer, for example, the light-transmitting plate of the Chinese patent with publication number of CN105042513A and patent name of "combined LED reflector" is mounted at the front end of the lamp cup or the opening of the lamp cup, and the mounting structure is complex and occupies space, increases the manufacturing cost and is unfavorable for energy conservation and environmental protection.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a reflection and refraction high-light-efficiency combined lamp cup, which is characterized in that the connecting lines of the edge point of a lens positioned on the outer circumference of the lower end of the lens, the edge point of the inner edge of the cup positioned on the inner circumference of the cup and an LED light source are set as critical rays, so that the lens entrance pupil angle of the lens is equal to the exit angle of a reflecting cup; meanwhile, the lens can be fixedly arranged on the reflecting cup through the lens support, and an installer can control the installation height, the installation length or the installation position of the lens by installing the lens supports with different lengths or adjusting the lengths of the lens supports, so that the lens edge point of the lens always falls on a critical light line, and a secondary optical structure with full light efficiency utilization is formed. The utility model is realized by the following technical scheme:

the high-light-efficiency combined lamp cup comprises a light reflecting cup, wherein one end of the light reflecting cup is provided with a cup opening, the other end of the light reflecting cup is provided with a cup bottom, and an LED light source is arranged in the cup bottom; the lens bracket is arranged on one side, close to the bottom of the cup, of the reflecting cup, and the lens is arranged on the lens bracket, so that the lens can be arranged in the reflecting cup through the lens bracket.

Preferably, the lens includes one of a convex lens, a fresnel lens, a spiral fly-eye lens, and the like. The spiral fly-eye lens refers to a fly-eye lens with spiral lines.

By adopting the technical scheme, when the lens arranged in the reflecting cup is a convex lens, the lens can obtain the combination of the highest illumination, and the lens is particularly suitable for being used as a searchlight, a sea sweeping lamp, a wall washing lamp without auxiliary light spots, an ultra-long-distance spotlight, a projection lamp and the like. When the lens arranged in the reflecting cup is a Fresnel lens, the Fresnel lens can be combined with an optimal comprehensive value, so that the Fresnel lens has the advantages of high illumination, uniform light spots and clear light spot outline, and has a far-emitted main light spot and a near-distance illuminated auxiliary light spot, so that the Fresnel lens is particularly suitable for being used as a strong light flashlight, a spot light, a court light and the like. When the lens arranged in the reflecting cup is a spiral fly-eye lens, the lens can obtain the combination of the most uniform illumination, and can eliminate shadows and chromatic aberration generated after the COB light source and the multi-chip high-power LED light source are condensed, so that the lens is particularly suitable for various barrel lamps, projection lamps and the like for indoor large-angle large-area illumination.

Preferably, the outer circumference of the lower end of the lens is provided with a lens edge point.

Preferably, the inner circumference of the cup opening is provided with a cup opening inner edge point.

Preferably, the connection lines of the LED light source, the edge point of the lens and the edge point of the cup opening are set as critical light rays.

When the technical scheme is adopted, the lens is installed in the reflecting cup through the lens support and is positioned above the LED light source, and the lens support is designed to enable the lens to be installed and fixed. In addition, the lens support with different lengths is arranged to adjust the installation height/installation length/installation position of the lens, so that the edge point of the lens can be just overlapped or overlapped with critical light, a secondary optical structure with full light efficiency can be formed, light leakage caused by overflow of light in a critical light angle when the lens is installed at too high height and reflectivity of a reflecting cup can be prevented from being influenced when the lens is installed at too low height, light leakage is prevented from being refracted by the lens and reflected by the reflecting cup, uncontrollable stray light is caused, a secondary light spot is formed, and the profile and brightness of a main light spot are finally reduced.

Preferably, the included angle formed by the intersection of the left critical light ray and the right critical light ray is the lens entrance pupil angle.

Preferably, the included angle formed by intersecting the edge points of the inner edges of the two cup openings which are bilaterally symmetrical in the cup opening and the LED light source is the emergent angle of the reflective cup.

Preferably, the lens entrance pupil angle is equal to the reflector cup exit angle, i.e. the lens entrance pupil angle overlaps the reflector cup exit angle.

After the technical scheme is adopted, the lens with the entrance pupil angle equal to the exit angle of the reflecting cup is placed in the reflecting cup, so that part of all light generated by the LED light source can be emitted in parallel after being refracted by the lens, and the rest of light can be emitted in parallel after being irradiated on the reflecting cup and reflected by the reflecting cup, namely, all the light emitted by the LED light source can be controlled and emitted in parallel, and the LED light source has the advantages of good light gathering effect, high light emitting efficiency, uniform light spots, no generation of auxiliary light spots, no chromatic aberration and the like, and can exert the light efficiency utilization rate of the LED light source to the maximum extent.

Preferably, the height of the top surface of the fresnel lens is set to be a structure increasing from the center to the edge.

Preferably, the lens holder comprises at least two uprights.

Preferably, when two vertical rods are arranged, the two vertical rods are distributed in bilateral symmetry.

After the technical scheme is adopted, the arrangement of the two upright rods can ensure stable installation of the lens, and can reduce the shielding of the light emitted by the LED light source, so that other light rays which are irradiated outside the lens by the LED light source as far as possible are fully irradiated on the reflecting cup, reflected by the reflecting cup and then emitted according to a specified angle, and the light rays generated by the LED light source are utilized to the maximum extent.

Compared with the prior art, the utility model has the beneficial effects that: 1. the connecting lines of the edge point of the lens positioned on the outer circumference of the lower end of the lens, the edge point of the inner edge of the cup positioned on the inner circumference of the cup and the LED light source are set as critical rays, so that the lens entrance pupil angle of the lens is equal to the exit angle of the reflecting cup; meanwhile, the lens bracket is arranged in the reflecting cup, so that the lens can be fixedly arranged on the reflecting cup through the lens bracket, an installer can adjust the mounting height, the mounting length or the mounting position of the lens through mounting the lens brackets with different lengths, and the lens edge point of the lens always falls on the critical light line, so that a secondary optical structure with full light efficiency utilization is formed, and the secondary optical structure can enable all light rays emitted by the LED light source to realize controllable and all light rays emitted by the LED light source to be emitted in parallel. The whole structure design of the LED lamp effectively solves the problems of stray light intensity, uneven light spots, poor light focusing effect, large light color difference, low light efficiency utilization rate of a light source, enlarged optical structure, prolonged optical structure, complex installation structure, high manufacturing cost, energy saving, environmental protection and space occupation caused by the unscientific and reasonable installation structure of the existing lens and the anti-lamp cup on the market.

2. When the reflecting cup is matched with lenses of different shapes for use, the reflecting cup has different functions and is suitable for being used as lamps of different types, so that the reflecting cup can be used for expanding the application range and has the purposes of strong applicability and strong universality.

Drawings

For ease of illustration, the utility model is described in detail by the following preferred embodiments and the accompanying drawings.

FIG. 1 is a perspective view of a reflective and refractive high light efficiency combination lamp cup of the present utility model.

FIG. 2 is a cross-sectional view of a reflective and refractive high light efficiency combination lamp cup according to the present utility model.

FIG. 3 is a cross-sectional view of a reflective and refractive high light efficiency combination lamp cup of the present utility model with a convex lens mounted.

FIG. 4 is a cross-sectional view of a reflective plus refractive high light efficiency combination lamp cup of the present utility model with a Fresnel lens mounted.

FIG. 5 is a cross-sectional view of a reflective and refractive high light efficiency combination lamp cup of the present utility model with a spiral fly-eye lens mounted.

Fig. 6 is a schematic view of an LED light source of a reflective and refractive high light efficiency combined lamp cup according to the present utility model, which emits light but does not have lens refraction and light reflection.

FIG. 7 is a schematic view of a reflective plus refractive high light efficiency combination lamp cup of the present utility model mounted with a lens having a lens entrance pupil angle.

FIG. 8 is a schematic view of the exit angle of a reflector cup in a reflective and refractive high-light-efficiency combined lamp cup according to the present utility model.

Fig. 9 is a perspective view of a lens in a reflection and refraction type high light efficiency combined lamp cup of the present utility model assembled with a lens holder as a convex lens.

Fig. 10 is a perspective view of a lens in a reflective and refractive high light efficiency combination lamp cup of the present utility model, which is a fresnel lens, assembled with a lens holder.

Fig. 11 is a perspective view of a lens in a reflection/refraction type high light efficiency combined lamp cup of the present utility model, which is a spiral fly-eye lens and is assembled with a lens holder.

Fig. 12 is a schematic view of an LED light source of a reflective plus refractive high light efficiency combined lamp cup according to the present utility model, which is reflected only by a reflector cup and not refracted by a lens.

Fig. 13 is a schematic view of an LED light source of a reflection-plus-refraction high-light-efficiency combined lamp cup according to the present utility model, which is refracted only by a lens.

Fig. 14 is a schematic view of an LED light source of a reflective and refractive high light efficiency combined lamp cup according to the present utility model, which is reflected by a reflective cup and refracted by a lens.

Description of the embodiments

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In this embodiment, referring to fig. 1 to 11, the reflection and refraction high light efficiency combined lamp cup of the utility model comprises a reflection cup 1, wherein one end of the reflection cup 1 is provided with a cup opening 2, the other end of the reflection cup 1 is provided with a cup bottom 3, and an LED light source 4 is arranged in the cup bottom 3; a lens bracket 5 is arranged on one side of the reflective cup 1, which is close to the cup bottom 3, a lens 6 is arranged on the lens bracket 5, and the lens 6 is arranged in the reflective cup 1; the lens 6 includes one of a convex lens 61, a fresnel lens 62, a spiral fly-eye lens 63, and the like.

In one embodiment, the outer circumference of the lower end of the lens 6 is provided as a lens edge point 64.

In one embodiment, the inner circumference of the rim 2 is provided as a rim inner edge point 21.

In one embodiment, the line connecting the LED light source 4, the lens edge point 64 and the rim inner edge point 21 is set as the critical light 7.

In one embodiment, the included angle formed within the critical ray 7 is the lens entrance pupil angle a.

In one embodiment, an included angle formed by intersecting any two cup opening inner edge points 21 which are bilaterally symmetrical in the cup opening 2 with the LED light source 4 is a reflection cup emergence angle b.

In one embodiment, the angle of the lens entrance pupil angle a is set equal to the angle of the reflector cup exit angle b.

In one embodiment, the height of the top surface of the Fresnel lens 62 is configured to increase from the center to the edge.

In one embodiment, the lens holder 5 comprises at least two uprights 8.

In one embodiment, when two upright posts 8 are provided, the two upright posts 8 are symmetrically distributed.

In one embodiment, the structural design principle of the reflection and refraction high light efficiency combined lamp cup is as follows: the linear connecting lines of a lens edge point 64 positioned on the outer circumference of the lower end of a lens 6, a cup opening inner edge point 21 positioned on the inner circumference of a cup opening 2 and an LED light source 4 are set as critical light rays 7, and a lens bracket 5 is arranged in a reflecting cup 1, so that the lens 6 can be fixedly installed through the lens bracket 5; at the same time, it sets the lens entrance pupil angle a equal to the reflector cup exit angle b, i.e. it installs a lens 6 with lens entrance pupil angle a equal to reflector cup exit angle b in reflector cup 1. Because the installation height of the lens 6 is too high, light within the angle of the critical light 7 overflows and leaks light, and when the installation height of the lens 6 is too low, the reflectivity of the reflective cup 1 is affected, so that the light leaks are not refracted by the lens 6 and are not reflected by the reflective cup 1, uncontrollable stray light is caused, and auxiliary light spots are formed, so that the profile and brightness of the main light spots are reduced. Therefore, the lens edge point 64 of the lens 6 can always be kept in the critical light 7 formed by connecting the inner edge point 21 of the cup mouth and the LED light source 4 from the beginning to the end by adjusting the mounting length or the mounting height of the mounting lens bracket 5 to be suitable for mounting with the reflecting cup 1 with different specifications, so that a secondary optical structure with full light efficiency can be formed. The lens bracket 5 is formed by two vertical rods 8, and the quantity design of the two vertical rods 8 can optimally reduce the shielding of the light emitted by the LED light source 4, so that other light rays emitted outside the lens 6 can be fully irradiated on the reflecting cup 1 as far as possible, and then reflected by the reflecting cup 1 and then emitted according to a designated angle. The integral structural design of the LED lamp can effectively solve the problems of stray light intensity, uneven light spots, poor light focusing effect, large light color difference, low light efficiency utilization rate of a light source, enlarged optical structure, prolonged optical structure, complex mounting structure, high manufacturing cost, energy saving, environmental protection and space occupation caused by the unscientific and reasonable mounting structure of the lens 6 and the reflector lamp cup 1 in the market at present.

In one embodiment, the reflector cup 1 is combined with the convex lens 61 to obtain the highest illumination, which is particularly suitable for searchlight, sea-sweeping lamp, wall-washing lamp without auxiliary light spots, ultra-long-distance spotlight, projection lamp and the like.

In one embodiment, when the reflector cup 1 is matched with the fresnel lens 62, the reflector cup can be combined with the fresnel lens to obtain an optimal combination of comprehensive values, so that the reflector cup has the advantages of high illumination, uniform light spots and clear light spot contours, and has a far-reaching main light spot and a near-distance illumination auxiliary light spot, so that the reflector cup is particularly suitable for being used as a strong light flashlight, a spot light, a court light and the like.

In one embodiment, when the reflective cup 1 is matched with the spiral fly-eye lens 63, the reflective cup can obtain the combination of the most uniform illumination, and can eliminate shadows and chromatic aberration generated after the COB light source and the multi-chip high-power LED light source 4 are condensed, so that the reflective cup is particularly suitable for various barrel lamps, projection lamps and the like for indoor large-angle large-area illumination.

In one embodiment, as shown in fig. 12, when the lens 6 with the same entrance pupil angle a and exit angle b is not installed in the reflective cup 1, the light emitted by the LED light source 4 cannot be refracted through the lens 6, and only the light larger than the exit angle b of the reflective cup, that is, only the light reflected by the reflective cup 1 can be controlled, but the light scattering line smaller than the exit angle b of the reflective cup cannot be controlled, so that stray light around the light spot is serious, and the light efficiency utilization rate is low.

In one embodiment, as shown in fig. 13, when the light emitted by the LED light source 4 is refracted only by the lens 6, the light larger than the lens entrance pupil angle a cannot be refracted by the lens 6, so that uneven light spots and serious chromatic aberration are caused, which also has the defect of low light efficiency.

In one embodiment, as shown in fig. 14, when the lens 6 with the same lens entrance pupil angle a and the same light reflecting cup exit angle b is installed in the light reflecting cup 1, the light emitted by the LED light source 4 can be controlled, and all the light of the LED light source 4 can be emitted in parallel, so that the structural design of the utility model realizes uniform light spots, no auxiliary light spots and no chromatic aberration, and good light condensing effect, so that the light efficiency utilization rate of the LED light source 4 can be exerted to the maximum extent.

The above embodiment is only an example of the present utility model and is not intended to limit the scope of the present utility model, and all technical solutions identical or equivalent to those described in the claims should be included in the scope of the present utility model.

Claims

1. A reflection and refraction high light effect combined lamp cup is characterized in that: the LED light source is arranged in the cup bottom; a lens bracket is arranged on one side of the reflective cup, which is close to the bottom of the cup, and a lens is arranged on the lens bracket; the lens includes one of a convex lens, a fresnel lens and a spiral fly-eye lens.

2. The reflection and refraction high light efficiency combined lamp cup according to claim 1, wherein: the outer circumference of the lower end of the lens is set as a lens edge point.

3. The reflection and refraction high light efficiency combined lamp cup according to claim 2, wherein: the inner circumference of the cup opening is set as the inner edge point of the cup opening.

4. A reflective and refractive high light efficiency combination lamp cup according to claim 3, wherein: the connection line of the LED light source, the edge point of the lens and the inner edge point of the cup opening is set as critical light.

5. The reflection and refraction high light efficiency combined lamp cup according to claim 4, wherein: the included angle formed within the critical ray is the lens entrance pupil angle.

6. The reflection and refraction high light efficiency combined lamp cup according to claim 5, wherein: the included angle formed by intersecting the inner edge points of the two cup openings which are bilaterally symmetrical in the cup opening and the LED light source is the emergent angle of the reflective cup.

7. The reflection and refraction high light efficiency combined lamp cup according to claim 1, wherein: the height of the top surface of the Fresnel lens is set to be gradually increased from the center to the edge.

8. The reflection and refraction high light efficiency combined lamp cup according to claim 1, wherein: the lens holder comprises at least two uprights.

9. The reflection and refraction high light efficiency combined lamp cup according to claim 8, wherein: when two vertical rods are arranged, the two vertical rods are distributed in bilateral symmetry.