CN213299987U - Dodging lens with absorption cover - Google Patents
Dodging lens with absorption cover Download PDFInfo
- Publication number
- CN213299987U CN213299987U CN202021833929.XU CN202021833929U CN213299987U CN 213299987 U CN213299987 U CN 213299987U CN 202021833929 U CN202021833929 U CN 202021833929U CN 213299987 U CN213299987 U CN 213299987U
- Authority
- CN
- China
- Prior art keywords
- light
- lens
- absorption cover
- lens cup
- perforation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a take even light lens of absorption cover to the utilization efficiency who solves lamps and lanterns light is low, the problem of dark spot appears, including the lens cup, be located the light-emitting plane of lens cup front end is located going into perforation and connection of lens cup rear end face center the light-emitting plane with go into the reflection side of perforation, evenly distributed has a plurality of little rhombus curved surfaces on the reflection side, the side of going into the perforation is the wave curved surface, and the preceding terminal surface of going into the perforation is central transmission face, the downthehole level of incident is provided with two at least light sources, the light-emitting plane is the free curved surface of infundibulate, infundibulate free curved surface include the centre to lens cup front end evagination forms first play plain noodles, first play plain noodles in first periphery is the second play plain noodles. Due to the action of a plurality of small diamond-shaped curved surfaces on the reflecting side surface and the wave-shaped curved surface on the incident hole side surface, light can be scattered and emitted, light spots are naturally and uniformly transited, dark spots are improved, and the light utilization efficiency is not reduced too much.
Description
Technical Field
The utility model provides a take even light lens of absorption cover, the utility model belongs to the technical field of optical lens, concretely relates to mixed light lens technical field.
Background
At present, a plurality of light sources with different colors need to be subjected to color mixing and then projected onto an illuminated surface, and the purpose of adjusting the color after light mixing by adjusting the ratio of the light flux between the light sources with different colors is achieved. The mainstream scheme in the market at present is to use square rod integration, micro-lens array, frosting surface homogenization and the like. But the integration of the square rods has the problems of low efficiency and uneven spatial color mixing, the micro-lens array has the problems that the light-emitting angle is difficult to reduce and the edge of a light spot is easy to have residual color glare, the frosted surface is uniform, the precision quantification is difficult, the light-emitting angle is difficult to reduce, and in addition, the lighting effect is greatly reduced after frosting.
The lens of taking the absorption cover can reduce the glare, but the utilization efficiency of lamps and lanterns light can greatly reduced, and the facula mixed light effect is poor when mixing light in addition, appears the dark spot, for example application number CN201721773246.8 discloses a modularization LED lamps and lanterns module for tunnel illumination and by the lamp for tunnel illumination that this lamps and lanterns module constitutes, the lamps and lanterns module includes light source component and radiator, light source component sets up the afterglow absorption cover. The tunnel lighting lamp adopts a unique integrated heat dissipation structure and a graphene heat dissipation technology to comprehensively improve the heat dissipation capacity of the system, solves the problems of poor heat dissipation, low lighting effect and short service life, and further improves the energy saving rate by 20%; the modular splicing type design can be combined at will according to the power requirement, and the on-site quick installation and maintenance can be realized, so that the maintenance cost is reduced, and the convenience is brought to the emergency maintenance of a tunnel section in a remote or severe environment; the light inlet surface of the lens adopts a corrugated design, and the edge of the lens is additionally provided with a residual light absorption shielding cover, so that the glare problem of the tunnel section is solved.
Above-mentioned patent increases the afterglow at the lens edge and absorbs the screening cover, solves the glare problem of tunnel section, but the utilization efficiency of lamps and lanterns light can greatly reduced, and the facula mixes the light effect poorly when mixing light in addition, appears the dark spot.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a take dodging lens of cage to solve above-mentioned lens edge and increase the utilization efficiency meeting greatly reduced that afterglow absorption shield cover leads to lamps and lanterns light, facula mixed light effect is poor in addition, the problem of dark spot appears.
The utility model adopts the technical scheme as follows:
the utility model provides a take dodging lens of absorption cover, includes the lens cup, is located the light-emitting plane of lens cup front end, is located the income perforation of lens cup rear end face center and connect the light-emitting plane with go into the reflection side of perforation, it is for going into the perforation to go into the columnar structure that the light-emitting plane extends, evenly distributed has a plurality of little rhomboid curved surfaces on the reflection side, the side of going into the perforation is the wave curved surface, the preceding terminal surface of going into the perforation is central transmission plane, the level is provided with two at least light sources in the entrance, the light-emitting plane is the free curved surface of infundibulate, infundibulate free curved surface include the centre to lens cup front end evagination forms first play plain noodles and first play plain noodles periphery is the second play plain noodles, the front end of lens cup is provided with the absorption cover.
In the technical scheme of the application, light emitted from a plurality of light sources of the lens is refracted through the central transmission surface and the incident hole side surface, the light is refracted through the light from the central transmission surface and then refracted out from the first light-emitting surface, the central transmission surface and the first light-emitting surface are equivalent to a convex lens, more light can be gathered in the middle of a light spot, the dark spot in the middle is reduced, the light from the incident hole side surface is scattered out from the second light-emitting surface through the reflection side surface, the first light-emitting surface is a free curved surface and can be adjusted, more light can be emitted out, and the weight of the lens is reduced; the absorption cover can block out large-angle light and prevent glare; the whole free-form surface is divided into a plurality of rhombic curved surfaces due to the effects of a plurality of small rhombic curved surfaces on the reflecting side surface and the wavy curved surface on the incident hole side surface, the light spots of the part are adjusted by adjusting a single rhombic curved surface, the light distribution is better compared with the whole free-form surface, all the light spots passing through the rhombic curved surfaces are overlapped into the whole light spots, the incident hole side wall is a curved surface formed by a plurality of small cylindrical surfaces, the cylindrical surfaces have different curvatures, the light refraction angles are different, the cylindrical surface curvatures are adjusted, light around the long direction of a plurality of light sources is increased, dark spots are improved, and the light utilization efficiency is not reduced too much.
Furthermore, a circle of boss is arranged at the front end part of the lens cup body, and a groove matched with the boss is arranged on the absorption cover. The boss and the groove are matched to limit the lens cup body, so that the lens cup body is stably and firmly fixed in the absorption cover.
Furthermore, compound eyes are arranged on the first light emitting surface. The compound eye on the first light emitting surface divides the whole cambered surface into a plurality of small spherical surfaces, the distribution of light is adjusted through different radius curvatures and different light refraction, and light superposition through the compound eye can enable light spots in the middle to be more uniform.
Further, the central transmission surface is a cambered surface protruding outwards towards the rear end of the lens cup body. The central transmission surface adopts a cambered surface to condense light to obtain a proper optical angle and light spots, and the central transmission surface and the first light-emitting surface are equivalent to convex lenses, so that more light can be condensed in the middle of the light spots, and the middle dark spots are reduced.
Further, the inner diameter of the entrance hole is gradually reduced along the direction close to the light exit plane. The mold is convenient to be demoulded.
Further, the shape of the lens cup is oval or circular.
Furthermore, the lens cup body is made of PC or PMMA.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, the light that sends from a plurality of light sources of lens refracts through center transmission face and incident hole side, refract away from first plain noodles through the light refraction from center transmission face, this partial light is more the gathering in the middle of the facula, alleviate middle dark spot, the light from incident hole side disperses away from the second plain noodles through the reflection side, because the effect of the little diamond-shaped curved surface of a lot of reflection sides and the wave curved surface of entering perforation side, can make the light dispersion throw out, the facula transition is natural even, improve the dark spot and light utilization efficiency also can not reduce too much;
2. in the utility model, a part of light is refracted through the central transmission surface and the first light-emitting surface to be processed, so that the part of light is gathered in the middle, and reflected and refracted through the reflection side surface and the incident hole side surface to a part of light, so that the light on the two sides of a plurality of light sources is increased and the light in the middle is increased, dark spots in the plurality of positions and the middle are improved, and more light is emitted on the basis of natural and uniform light spot transition, thereby improving the efficiency;
3. in the utility model, the absorption cover can block the large-angle light and prevent glare, and the boss is matched with the groove to limit the lens cup body, so that the lens cup body is stably and firmly fixed in the absorption cover;
4. in the utility model, the compound eye on the first light-emitting surface is equivalent to divide the whole cambered surface into a plurality of small spherical surfaces, the light distribution is adjusted through different radius curvatures and different light refraction, and the light superposition of the compound eye can make the light spots in the middle more uniform;
5. in the utility model, the central transmission surface adopts the cambered surface to condense light to obtain a proper optical angle and light spots, and the central transmission surface and the first light emitting surface are equivalent to convex lenses, so that more light can be gathered in the middle of the light spots to reduce the dark spots in the middle;
6. the second light-emitting surface is arranged to refract more light without being blocked by the absorbing cover.
Drawings
FIG. 1 is a schematic structural diagram of a dodging lens according to the present invention;
FIG. 2 is a cross-sectional view of the dodging lens of the present invention;
FIG. 3 is a schematic diagram of the rear end structure of the dodging lens of the present invention;
FIG. 4 is a schematic diagram of the front end structure of the dodging lens of the present invention;
FIG. 5 is a diagram of the light trend of the side surface of the lens in the width direction of 2 light sources of the dodging lens of the present invention;
fig. 6 is a diagram of the light trend of the lens side surface in the length direction of 2 light sources of the dodging lens of the present invention.
The labels in the figure are: 1-reflection side face, 2-second light-emitting face, 3-wave-shaped curved face, 4-central transmission face, 5-light source, 6-absorption cover, 9-first light-emitting face and 10-compound eye.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in figures 1-6, a dodging lens with an absorption cover comprises a lens cup body, a light-emitting plane positioned at the front end of the lens cup body, an incident hole positioned at the center of the rear end face of the lens cup body and a reflection side face 1 connecting the light-emitting plane and the incident hole, the entrance hole is a columnar structure extending to the exit plane, a plurality of small rhombic curved surfaces are uniformly distributed on the reflecting side surface 1, the side surface of the entry hole is a wave-shaped curved surface 3, the front end surface of the entry hole is a central transmission surface 4, at least two light sources 5 are horizontally arranged in the incident hole, the light emergent plane is a funnel-shaped free-form surface, the funnel-shaped free-form surface comprises a first light-emitting surface 9 and a second light-emitting surface 2, the middle of the funnel-shaped free-form surface protrudes outwards towards the front end of the lens cup body, the periphery of the first light-emitting surface 9 is located, and the front end part of the lens cup body is provided with a convex absorption cover 6.
In the technical scheme of the application, light emitted from a plurality of light sources 5 of the lens is refracted through the central transmission surface 4 and the incident hole side, the light is refracted through the light from the central transmission surface 4 and then refracted out from the first light-emitting surface 9, the central transmission surface 4 and the first light-emitting surface 9 are equivalent to convex lenses, more light can be gathered in the middle of a light spot, the dark spots in the middle are reduced, the light from the incident hole side is scattered out from the second light-emitting surface 2 through the reflection side surface 1, the first light-emitting surface 9 is a free curved surface and can be adjusted, more light can be emitted, and the weight of the lens is reduced; the absorption cover 6 can block out large-angle light and prevent glare; the whole free curved surface is divided into a plurality of rhombic curved surfaces due to the effects of a plurality of small rhombic curved surfaces of the reflecting side surface 1 and the wavy curved surface 3 of the incident hole side surface, the light spots of the part are adjusted by adjusting a single rhombic curved surface, compared with the whole free curved surface, the light distribution is better, all the light spots passing through the rhombic curved surfaces are overlapped into the whole light spots, the incident hole side wall is a curved surface formed by a plurality of small cylindrical surfaces, the cylindrical surface curvatures are different, the light refraction angles are different, the cylindrical surface curvatures are adjusted, the light on two sides in the long direction of the plurality of light sources 5 is increased, the dark spots are improved, and the light utilization efficiency is not reduced too much.
Example 2
As shown in fig. 2, in example 1, a circle of bosses are provided at the front end of the lens cup, and a groove matching with the bosses is provided on the absorption cover 6. The boss and the groove are matched to limit the lens cup body, so that the lens cup body is stably and firmly fixed in the absorption cover 6.
Example 3
As shown in fig. 4, in addition to embodiment 1, compound eyes 10 are disposed on the first light emitting surface 9. The compound eye 10 on the first light emitting surface 9 is equivalent to divide the whole cambered surface into a plurality of small spherical surfaces, the distribution of light is adjusted through different radius curvatures and different light refractions, and light superposition passing through the compound eye 10 can make light spots in the middle more uniform.
Example 4
As shown in fig. 2, in example 1, the central transmission surface 4 is a curved surface convex toward the rear end of the lens cup. The central transmission surface 4 adopts a cambered surface to condense light to obtain a proper optical angle and light spots, and the central transmission surface 4 and the first light emitting surface 9 are equivalent to convex lenses, so that more light can be condensed in the middle of the light spots, and the middle dark spots are reduced.
Example 5
As shown in fig. 1, based on example 1, the inner diameter of the entrance hole becomes gradually smaller in a direction approaching the exit plane. The mold is convenient to be demoulded.
Example 6
As shown in fig. 2, the lens cup has an elliptical or circular shape in the case of embodiment 1.
Example 7
As shown in fig. 1, in example 1, the material of the lens cup is PC or PMMA.
In the above embodiment, the number of the light sources 5 is 2, and may be 3, 4 or more.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a take dodging lens of absorption cover, includes the lens cup, is located the light-emitting plane of lens cup front end is located going into perforation and connection of lens cup rear end face center the light-emitting plane with go into reflection side (1) of perforation, go into the perforation for to the columnar structure of light-emitting plane extension, its characterized in that: the lens cup is characterized in that a plurality of small rhombic curved surfaces are uniformly distributed on the reflection side surface (1), the side surface of the incident hole is a wavy curved surface (3), the front end surface of the incident hole is a central transmission surface (4), at least two light sources (5) are horizontally arranged in the incident hole, the light emitting plane is a funnel-shaped free curved surface, the funnel-shaped free curved surface protrudes outwards from the middle to the front end of the lens cup body to form a first light emitting surface (9), the periphery of the first light emitting surface (9) is a second light emitting surface (2), and the front end part of the lens cup body is provided with a convex absorption cover (6).
2. The dodging lens with the absorption cover as claimed in claim 1, wherein: the front end part of the lens cup body is provided with a circle of boss, and the absorption cover (6) is provided with a groove matched with the boss.
3. The dodging lens with the absorption cover as claimed in claim 1, wherein: the first light emitting surface (9) is provided with compound eyes (10).
4. The dodging lens with the absorption cover as claimed in claim 1, wherein: the central transmission surface (4) is a cambered surface protruding outwards towards the rear end of the lens cup body.
5. The dodging lens with the absorption cover as claimed in claim 1, wherein: the inner diameter of the entrance hole is gradually reduced along the direction close to the light exit plane.
6. The dodging lens with the absorption cover as claimed in claim 1, wherein: the shape of the lens cup body is oval or round.
7. The dodging lens with the absorption cover as claimed in claim 1, wherein: the lens cup body is made of PC or PMMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833929.XU CN213299987U (en) | 2020-08-28 | 2020-08-28 | Dodging lens with absorption cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833929.XU CN213299987U (en) | 2020-08-28 | 2020-08-28 | Dodging lens with absorption cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213299987U true CN213299987U (en) | 2021-05-28 |
Family
ID=76027612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021833929.XU Active CN213299987U (en) | 2020-08-28 | 2020-08-28 | Dodging lens with absorption cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213299987U (en) |
-
2020
- 2020-08-28 CN CN202021833929.XU patent/CN213299987U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090129084A1 (en) | Optical device for altering light shape and light source module comprising same | |
| CN103292247A (en) | Secondary optical lens of polyhedron | |
| AU2012365473B2 (en) | Improved optical systems and LED luminaires | |
| CN102322610A (en) | Condensing lens, luminaire and camera | |
| WO2012171439A1 (en) | Condenser lens structure for lighting lamp and corresponding illumination device | |
| CN106594675B (en) | LED total reflection lens and LED line light source | |
| CN102563527A (en) | Lens with reflecting surfaces | |
| CN2876546Y (en) | Light guiding plate | |
| CN210860981U (en) | Lens and lamp | |
| CN213299987U (en) | Dodging lens with absorption cover | |
| CN218064498U (en) | Optical structure lamp | |
| WO2020001327A1 (en) | Bulb and chandelier | |
| CN114440142B (en) | LED optical system for forming special-shaped outline light spots based on micro-lens array | |
| US4039816A (en) | Arrangement for transmitting light energy | |
| CN104214668A (en) | Lens and LED lamp with same | |
| CN101493210A (en) | Light source structure based on LED | |
| CN213299988U (en) | Light mixing lens with absorption cover | |
| CN113504600A (en) | Light guide element and lamp | |
| CN202947076U (en) | Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns | |
| CN201053630Y (en) | LED array parallel light condensation device | |
| CN212719575U (en) | Lampshade and lamp | |
| CN202511192U (en) | Lens for LED (Light Emitting Diode) bulb lamp | |
| CN211146385U (en) | Lens capable of uniformly distributing light | |
| CN221324242U (en) | Panel light of interchangeable optical module | |
| CN219933815U (en) | Novel condenser structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |