CN209893314U - Optical zoom lens and lamp - Google Patents
Optical zoom lens and lamp Download PDFInfo
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- CN209893314U CN209893314U CN201920720894.XU CN201920720894U CN209893314U CN 209893314 U CN209893314 U CN 209893314U CN 201920720894 U CN201920720894 U CN 201920720894U CN 209893314 U CN209893314 U CN 209893314U
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Abstract
The utility model discloses a light becomes burnt lens and lamps and lanterns, light becomes burnt lens including reflection of light cup, be equipped with the lens body in the reflection of light cup, the lens body and the coaxial setting of reflection of light cup and integrated into one piece, the lower bottom surface of reflection of light cup includes: light region is advanced to first light region and second, first light region of advancing is circular, the second is advanced light region and is equipped with the radius by a plurality of cyclic annular burr big to little, a plurality of cyclic annular burr advances light region concentric circles with first. The luminaire includes the light zoom lens. The utility model discloses a with reflection of light cup, lens body and cyclic annular burr integration combination, simple structure effectively improves the light-emitting rate, reduces the light loss, improves the radiating efficiency.
Description
Technical Field
The utility model relates to an optical lens field more relates to an optical zoom lens and lamps and lanterns.
Background
In the field of existing optical zoom lamps, two types of lenses, namely a frog-eye zoom lens and a Fresnel lens, are mostly used. The frog-eye zoom lens has high light-emitting rate and small light loss, but has low heat dissipation efficiency. The lower part of the frog-eye zoom lens is provided with a light inlet hole, the light source is arranged in the light inlet hole, light beams emitted by the light source are all included in the light inlet hole, heat emitted by the light source needs to be conducted and dissipated by arranging a heat conduction column below the light source, and the heat conduction column is used for conducting the heat to the shell and dissipating the heat. However, in the whole heat dissipation process, the heat resistance of the heat conduction column, the base and the shell is large, the heat dissipation efficiency is low, and meanwhile, the heat conduction column is assembled in the production and assembly processing processes, so that the cost is high. The Fresnel lens is light and thin, the heat dissipation efficiency is high, but the light extraction rate is not high, the imaging range is small, and the imaging quality is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light zoom lens and lamps and lanterns that radiating efficiency is high and light-emitting rate is high.
The utility model provides a solution of its technical problem is:
the utility model provides an optical zoom lens, includes the reflection of light cup, be equipped with the lens body in the reflection of light cup, the lens body sets up and integrated into one piece with the reflection of light cup is coaxial, the lower bottom surface of reflection of light cup includes: light region is advanced to first light region and second, first light region of advancing is circular, the second is advanced light region and is equipped with the radius by a plurality of cyclic annular burr big to little, a plurality of cyclic annular burr advances light region concentric circles with first.
The utility model discloses an optical zoom lens is through combining together reflection of light cup and lens body, and the bottom surface sets up the first cyclic annular burr that advances light region and second and advance light region simultaneously under, effectively reduces the light loss, improves the light extraction rate simultaneously.
As a further improvement of the technical scheme, the light emergent surface of the lens body is in an arc convex shape.
As a further improvement of the above technical solution, the light exit surface and the first light entrance area are any one of a bead surface, a frosted surface, a mirror surface, and a circle surface.
As a further improvement of the technical scheme, the outer side wall of the reflecting cup body is provided with a plating film.
As a further improvement of the technical scheme, an angle formed by the inner side wall of the reflecting cup body and the main optical axis of the lens body is a, wherein a is more than or equal to 15 degrees and less than or equal to 75 degrees.
As a further improvement of the technical scheme, the lens body and the reflecting cup body are made of polycarbonate.
As a further improvement of the technical scheme, the lens body and the reflecting cup body are made of polymethyl methacrylate.
In addition, a lamp is also provided, and the lamp comprises the optical variable focus lens.
The utility model has the advantages that: the utility model discloses a with reflection of light cup, lens body and cyclic annular burr integration combination, simple structure effectively improves the light-emitting rate, reduces the light loss, improves the radiating efficiency.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a sectional view of a light zoom lens in the present embodiment;
fig. 2 is a schematic structural diagram of the optical zoom lens in the present embodiment;
FIG. 3 is a schematic diagram of an optical path of the optical zoom lens in the present embodiment;
fig. 4 is a sectional view of a frog-eye zoom lens in the related art.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Embodiment 1, referring to fig. 1 to 4, an optical zoom lens 100 includes a reflective cup 110, a lens body 120 is disposed in the reflective cup 110, the lens body 120 and the reflective cup 110 are coaxially disposed and integrally formed, a lower bottom surface of the reflective cup 110 is a light entrance area, and the light entrance area includes: first light zone 131 and second light zone 132 of advancing, first light zone 131 is for circular, second light zone 132 of advancing is equipped with the radius from small to big a plurality of annular burr, a plurality of annular burr and first light zone 131 concentric circles are advanced to a plurality of.
Preferably, the light emitting surface 140 of the lens body 120 is arc-shaped and convex, and the light emitting surface 140 and the first light entering area 131 are coaxially disposed.
The lens body 120 is a convex lens.
The working process of the optical zoom lens 100 of the present embodiment:
the light source 200 is disposed right below the lower bottom surface of the optical zoom lens 100, the light source 200 is disposed coaxially with the first light entering region 131, the light beam of the light source 200 enters the optical zoom lens 100 from the lower bottom surface of the optical zoom lens 100, the collimated light emitted from the light source 200 enters the lens body 120 through the first light entering region 131 and exits from the light exit surface 140 of the lens body 120, the non-collimated light emitted from the light source 200 enters the optical zoom lens 100 through the second light entering region 132, and when the non-collimated light passes through the annular ridge of the second light entering region 132, the direction of the light changes, the angle of the non-collimated light is changed to enter the lens body 120 or reflected by the inner curved surface of the reflective cup 110, and then passes through the lens body 120 and exits from the light exit surface 140 of the lens body 120 or the inner sidewall 112 of the reflective cup 110. Therefore, the light loss is effectively reduced, and the light extraction rate is improved.
The Fresnel lens in the prior art is also provided with an annular convex structure, but the traditional Fresnel lens is light and thin, but the light-emitting rate is not high, and the imaging range is small. In the optical zoom lens 100 of the present embodiment, the reflective cup 110 is combined with the lens body 120, and the annular ridges of the first light incident region 131 and the second light incident region 132 are disposed on the lower bottom surface, so that light loss is effectively reduced, and light extraction rate is improved.
Referring to fig. 4, a light inlet is formed at a lower portion of a frog-eye zoom lens in the prior art, and the light source 200 needs to be disposed on a heat-conducting pillar 400 in the light inlet, so that heat in the light inlet is conducted through the heat-conducting pillar 400. In order to enable the light source 200 to approach the light incident surface 130 at the top of the light incident hole to achieve zooming, the light source 200 needs to be disposed on the heat conducting pillar 400, but cannot be directly disposed on the base 300, the heat conducting pillar 400 is used for conducting heat to the base 300 and the housing, and in the whole heat dissipation process, the heat resistance of the heat conducting pillar 400, the base 300 and the housing is large, and the heat dissipation efficiency is low.
The light source 200 is an LED lamp bead.
The temperature of the negative electrode pad of the 30W LED lamp bead on the heat conducting column 400 is detected through experiments, and through a plurality of groups of detection experiments, the temperature of the negative electrode pad of the 30W LED lamp bead on the heat conducting column 400 is finally obtained to be 90-100 ℃, so that the heat dissipation efficiency is low, and the heat dissipation performance is poor.
In the technical field of illumination, the temperature of a negative electrode pad of an LED lamp bead is generally required to be less than 85 ℃, and the heat dissipation is qualified when the temperature of the negative electrode pad of the LED lamp bead is lower than 85 ℃.
The lower portion of the optical zoom lens 100 of the present embodiment is not provided with a light inlet, and the light source 200 may be directly disposed on the base 300 below the lower bottom surface of the optical zoom lens 100, without conducting heat through the heat conducting column 400, thereby reducing thermal resistance and effectively improving heat dissipation efficiency.
The temperature of the negative electrode pad of the 30W LED lamp bead fixedly arranged on the base 300 and positioned below the optical zoom lens 100 is detected through experiments, and through a plurality of groups of detection experiments, the temperature of the negative electrode pad of the 30W LED lamp bead fixedly arranged on the base 300 and positioned below the optical zoom lens 100 is finally obtained to be 70-83 ℃, so that the heat dissipation efficiency is greatly improved, the heat dissipation performance is improved, and the heat dissipation is qualified.
Meanwhile, the optical zoom lens 100 of the embodiment has a simple structure, the reflective cup body 110, the lens body 120 and the annular convex patterns are integrated, and the optical zoom lens can be produced through one set of die, so that the cost is saved, meanwhile, the assembly process is simple and convenient, and the processing efficiency is improved.
The utility model discloses a with reflection of light cup 110, lens body 120 and cyclic annular burr integration combination, simple structure effectively improves the light-emitting rate, reduces the light loss, improves the radiating efficiency.
Preferably, the light emitting surface 140 and the first light entering area 131 are any one of a bead surface, a frosted surface, a mirror surface and a circle grain surface.
The first light entering region 131 and the light exiting surface 140 are mirror surfaces in a conventional structure, but if the mirror surfaces are not processed, the light source 200 may be emitted through the optical zoom lens 100, which may cause yellow ring and dispersion problems. In this embodiment, when the first light incident area 131 and the light emergent area 140 are any one of a bead surface, a frosted surface, a mirror surface, or a circle surface, the light emitted from the light source 200 passes through any one of the bead surface, the frosted surface, the mirror surface, or the circle surface, so that the light spots are more uniform, and yellow circles and dispersion can be reduced.
Preferably, the outer sidewall 111 of the reflective cup 110 is provided with a plating film.
The optical zoom lens 100 is transparent as a whole, the lens body 120 adopts a TIR (total Internal reflection) lens, the TIR lens refers to a lens system designed by utilizing the principle of total Internal reflection, and is widely used due to the characteristic of high-efficiency light condensation, a layer of uniformly distributed electroplated layer can be plated on the outer side wall 111 of the reflecting cup body 110, the light which penetrates through the optical zoom lens 100 and is not collimated enters the lens body 120 by being reflected by the inner curved surface of the reflecting cup body 110, and finally the light is emitted from the light emitting surface 140 of the lens body 120 or the inner side wall 112 of the reflecting cup body 110, the lens body 120 and the reflecting cup body 110 are of a transparent structure, and the light path design can effectively reduce light loss, improve the light emitting rate and avoid the glare phenomenon.
In the embodiment, the plating layer is plated on the outer sidewall 111 of the reflective cup 110, which simplifies the plating process and reduces the processing cost, and the light-emitting angle can be adjusted by changing the curvature parameter of the inner curved surface of the reflective cup 110. Besides, the outer side wall 111 of the reflective cup 110 can be plated with a uniformly distributed plating layer, the outer side wall 111 of the reflective cup 110 can be designed to be of a smooth surface structure, of course, the outer sidewall 111 of the reflective cup 110 may be provided with evenly distributed fish scales, wherein, the fish scale surface can be designed into a hexagonal surface shape, a quadrangular surface shape, a square surface shape, a diamond surface shape or other shapes and structures, after the light rays which penetrate through the lens body 120 and are not collimated are reflected by the inner curved surface of the reflecting cup body 110, the light-emitting surface 140 of the lens body 120 or the inner sidewall 112 of the reflective cup 110 is provided with a fish scale surface, can scatter the non-collimated light to make the light spot more uniform, can reduce yellow circle and dispersion, can be used as required, the outer side wall 111 of the reflective cup body 110 is provided with evenly distributed fish scale surfaces, and the outer sides of the fish scale surfaces are plated with evenly distributed electroplated layers.
The lens body 120 and the reflective cup 110 may be made of transparent PC (polycarbonate) or PMMA (polymethyl methacrylate), wherein polycarbonate has high strength and elastic coefficient, high impact strength, wide temperature range, high transparency, excellent electrical characteristics, and high refractive index, and polymethyl methacrylate, commonly known as organic glass, is the most excellent variety of synthetic transparent materials so far.
Preferably, an angle formed by the inner sidewall 112 of the reflective cup 110 and the main optical axis of the lens body 120 is a, wherein a is greater than or equal to 15 degrees and less than or equal to 75 degrees.
The light-emitting rate is increased by adjusting the angle formed by the inner side wall 112 of the reflective cup 110 and the main optical axis of the lens body 120, so that the emergent light spots are more uniform.
Besides, a lamp is provided, which comprises the above-mentioned optical zoom lens 100.
By arranging the optical zoom lens 100, the heat dissipation efficiency and the light extraction rate of the lamp are effectively improved, the light loss is reduced, and uniformly distributed light spots are realized. Meanwhile, the heat conducting column 400 is not required to be arranged in the lamp, so that the cost is effectively reduced and the assembly procedures are reduced.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (8)
1. The utility model provides an optical zoom lens, its characterized in that, includes the reflection of light cup, be equipped with the lens body in the reflection of light cup, the lens body sets up and integrated into one piece with the reflection of light cup is coaxial, the lower bottom surface of reflection of light cup includes: light region is advanced to first light region and second, first light region of advancing is circular, the second is advanced light region and is equipped with the radius by a plurality of cyclic annular burr big to little, a plurality of cyclic annular burr advances light region concentric circles with first.
2. The optical zoom lens of claim 1, wherein: the light emergent surface of the lens body is in an arc convex shape.
3. An optically variable focal length lens as claimed in claim 2, wherein: the light-emitting surface and the first light-entering area are any one of a bead surface, a frosted surface, a mirror surface or a ring-grain surface respectively.
4. The optical zoom lens of claim 1, wherein: and the outer side wall of the reflecting cup body is provided with an electroplating film.
5. The optical zoom lens of claim 1, wherein: the angle formed by the inner side wall of the reflecting cup body and the main optical axis of the lens body is a, wherein a is more than or equal to 15 degrees and less than or equal to 75 degrees.
6. The optical zoom lens of claim 1, wherein: the lens body and the reflecting cup body are made of polycarbonate.
7. The optical zoom lens of claim 1, wherein: the lens body and the reflecting cup body are made of polymethyl methacrylate.
8. A luminaire comprising a light-focusing lens as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920720894.XU CN209893314U (en) | 2019-05-17 | 2019-05-17 | Optical zoom lens and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920720894.XU CN209893314U (en) | 2019-05-17 | 2019-05-17 | Optical zoom lens and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209893314U true CN209893314U (en) | 2020-01-03 |
Family
ID=69020970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920720894.XU Active CN209893314U (en) | 2019-05-17 | 2019-05-17 | Optical zoom lens and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209893314U (en) |
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2019
- 2019-05-17 CN CN201920720894.XU patent/CN209893314U/en active Active
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