CN212840802U - Light-adjusting lens group of lighting device - Google Patents
Light-adjusting lens group of lighting device Download PDFInfo
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- CN212840802U CN212840802U CN202021112569.4U CN202021112569U CN212840802U CN 212840802 U CN212840802 U CN 212840802U CN 202021112569 U CN202021112569 U CN 202021112569U CN 212840802 U CN212840802 U CN 212840802U
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- 238000005286 illumination Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 19
- 208000010727 head pressing Diseases 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 4
- 230000003760 hair shine Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model belongs to field lighting device field relates to a lighting device's battery of lenses of adjusting luminance, include: the base is provided with a cavity with an opening at one end; a light source assembly fixedly mounted within the cavity for providing a light source to the illumination device; a first lens for converging the light emitted from the light source assembly; a second lens for condensing the light passing through the first lens again; with the tertiary lens subassembly of base swivelling joint includes: the first end of the adjusting ring is fixed with the third lens, and the second end of the adjusting ring is rotatably connected with the base and used for adjusting the distance between the third lens and the second lens. Its advantage lies in, can ensure that the light after first lens assemble all assembles through the second lens, shines away through the third lens again to reduce the light source and shine the loss rate of luminous flux when external, improve the utilization ratio of light efficiency.
Description
Technical Field
The utility model belongs to field lighting device field relates to a lighting device's lens group of adjusting luminance.
Background
The existing dimming flashlight generally has two modes: the first way is to use a single TIR lens to fix the light source and change the positions of the light source and the light inlet of the lens by moving the lens to realize dimming, and the second way is to use two lenses to fix the light source and move one of the two lenses to realize dimming. The two modes realize dimming within 0-15 mm, and have the defects that in the moving process of the light source, most light rays are not absorbed by the inner wall of the flashlight through the lens because the light source is far away from the lens collagen, so that the light flux loss is caused, and the light efficiency utilization rate is low.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a lighting device's battery of adjusting luminance, can ensure that the light after first lens assemble all assembles through the second lens, shines away through the third lens again to reduce the light source and shine the loss rate of luminous flux when external, improve the utilization ratio of light efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dimming lens group of a lighting device, comprising:
the base is provided with a cavity with an opening at one end;
a light source assembly for providing a light source to the illumination device, the light source assembly being fixedly mounted within the cavity;
the first lens is fixedly arranged on the light source component and is positioned in the light emitting direction of the light source component for converging the light emitted by the light source component;
the second lens is fixedly arranged at the opening and is used for converging the light rays passing through the first lens again;
with the tertiary lens subassembly of base swivelling joint includes: the first end of the adjusting ring is fixed with the third lens, the second end of the adjusting ring is rotatably connected with the base and used for adjusting the distance between the third lens and the second lens, so that the angle of light emitted from the third lens is changed, and the first end is opposite to the second end;
the light generated by the light source assembly sequentially passes through the first lens, the second lens and the third lens.
Furthermore, the second lens and the third lens are both asymmetric aspheric curved surface structures, the end surface of the second lens close to the third lens is in a concave-convex wave shape, the end surface of the third lens close to the second lens is also in a concave-convex wave shape, and the end surface of the second lens close to the third lens is matched with the end surface of the third lens close to the second lens to adjust the angle of light emitted from the third lens when the adjusting ring and the base rotate relatively.
Furthermore, be provided with first mounting hole on the lateral wall of base, first mounting hole department is fixed with the pin, the inside wall of adjusting the circle still correspondingly is provided with the spout, the one end of pin with first mounting hole is fixed, the other end of pin with the spout is connected makes the adjusting the circle can with the base produces relative rotation.
Furthermore, a lens pressing ring used for fixing a second lens is further installed at the opening, a first internal thread is arranged on the inner side wall of the lens pressing ring, a first external thread is formed on the base, and the first internal thread and the first external thread are matched to enable the lens pressing ring to fix the second lens at the opening of the cavity.
Furthermore, the tertiary lens assembly further comprises a head pressing ring, an annular flange is further arranged on the end face, close to the second lens, of the head pressing ring, a groove is correspondingly formed in the first end of the adjusting ring, and the annular flange is matched with the groove to fixedly install the third lens at the first end of the adjusting ring.
Further, the light source assembly comprises: the light source substrate is fixedly arranged in the cavity, and the light source is arranged on the light source substrate and electrically connected with the light source substrate.
Furthermore, a lens support is further arranged on the light source substrate, a second mounting hole is formed in the lens support, and the first lens is fixed to the second mounting hole.
Further, a sealing ring is arranged between the head pressing ring and the third lens.
Further, the sliding groove is provided with a certain inclination, and the inclination range of the sliding groove is 10-40 degrees.
Furthermore, the end surface of the lens support close to the light source substrate is also provided with a heat radiating piece
The utility model has the advantages that:
the first lens is arranged at the light source, so that light rays emitted by the light source component can be converged, the light rays generated by the light source are converged to about 80 degrees and then are diffused to penetrate out of the first lens from about 165 degrees, the light flux generated by the light source is reduced and absorbed by the inner wall of the cavity, the second lens and the third lens are arranged, the positions and the structures of the second lens and the third lens are arranged, the convex surface and the concave surface of the third lens and the concave surface of the fourth lens can be completely overlapped or staggered when the adjusting ring rotates, the emergent direction of the light rays is changed, the emergent light rays can realize dimming conversion of small angles and large angles, the light rays can achieve a collimation effect in small angles, and the highest light intensity is ensured; the second lens and the third lens are arranged to be of the same structure, so that the production of the two lenses can be realized only by opening one set of module, and the die sinking cost is reduced; the adjusting ring is matched with the base, the distance between the second lens and the third lens is adjusted by rotating the adjusting ring, so that the light emitting angle is adjusted, the same axis center of the second lens and the third lens is unchanged when the second lens and the third lens are used for a long time, and the stability of the dimming effect is ensured; through setting up the sealing washer, can prevent that moisture from getting into the lens module of adjusting luminance to improve the waterproof performance of the lens module of adjusting luminance.
Drawings
FIG. 1 is an exploded schematic view of the present invention;
FIG. 2 is an assembly view of the present invention;
FIG. 3 is a schematic structural view of the present invention when light is emitted at a large angle;
FIG. 4 is a schematic structural view of the present invention when the light is emitted at a small angle;
FIG. 5 is a schematic structural diagram of a primary lens assembly of the present invention;
fig. 6 is a schematic structural diagram of the secondary lens assembly of the present invention;
fig. 7 is a schematic structural diagram of the tertiary lens assembly of the present invention;
fig. 8 is a schematic structural diagram of the light source assembly of the present invention.
The labels in the figure are: 100-base, 110-opening, 120-first mounting hole; 200-a light source assembly, 210-a light source substrate, 220-a light source; 300-primary lens assembly, 310-first lens, 320-lens holder; 400-secondary lens assembly, 410-secondary lens, 420-lens clamping ring; 500-cubic lens assembly, 510-tertiary lens, 520-adjusting ring, 521-sliding groove, 522-groove, 530-head pressing ring, 531-annular flange; 600-pins; 700-sealing ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, a dimming lens group of a lighting device includes: the lighting device comprises a base 100 formed with a cavity, a light source assembly 200 fixedly installed in the cavity and used for providing a light source for the lighting device, a first lens 310 used for converging light rays emitted by the light source assembly 200, a second lens 410 used for converging light rays passing through the first lens 310 again, and a tertiary lens assembly 500 rotatably connected with the base 100.
Referring to fig. 2, in the above embodiment, the first lens 310 is fixedly installed on the light source assembly 200 and is located in the light emitting direction of the light source assembly 200 for converging the light emitted from the light source assembly 200; an opening 110 is formed at one end of the cavity, and a second lens 410 is fixedly installed at the opening 110 for converging the light passing through the first lens 310 again; the tertiary lens assembly 500 includes: a third lens 510 and an adjusting ring 520, wherein a first end of the adjusting ring 520 is fixed to the third lens 510, a second end of the adjusting ring 520 is rotatably connected to the base 100 for adjusting the distance between the third lens 510 and the second lens 410, so that the angle of the light emitted from the third lens 510 is changed, and the first end is opposite to the second end; the light generated by the light source assembly 200 sequentially passes through the first lens 310, the second lens 410 and the third lens 510, and the first lens 310, the second lens 410 and the third lens 510 are coaxially disposed.
Referring to fig. 2 to 4, according to the above embodiment of the present application, the second lens 410 and the third lens 510 are both asymmetric aspheric curved surface structures, an end surface of the second lens 410 close to the third lens 510 is in a concave-convex wavy shape, an end surface of the third lens 510 close to the second lens 410 is also in a concave-convex wavy shape, an end surface of the second lens 410 close to the third lens 510 and an end surface of the third lens 510 close to the second lens 410 are matched for adjusting an angle of light emitted from the third lens 510 when the adjusting ring 520 and the base 100 rotate relatively, in an embodiment, an end surface of the third lens 510 close to the second lens 410 and an end surface of the second lens 410 close to the third lens 510 are both divided by 360 degrees, the divided angle may be 10 degrees to 60 degrees, and an actual angle is determined according to a visual effect.
When the light-adjusting lens module is used, the first lens 310, the second lens 410 and the third lens 510 are matched, the second lens 410 and the third lens 510 are both asymmetric aspheric curved surface structures, the end surface of the third lens 510 close to the second lens 410 and the end surface of the second lens 410 close to the third lens 510 are both convex and concave surfaces, the divergence angle of light generated by the light source assembly 200 is about 160 degrees, the light firstly enters the first lens 310 to enable the light to converge from about 160 degrees to about 80 degrees for divergence, the first lens 310 converges the light to enable light energy to be utilized to the maximum extent, the light continuously emits forwards after penetrating through the first lens 310, the light enters the second lens 410 after being refracted, the light emits into the concave-convex surface of the third lens 510, and the light finally emits from the third lens 510 after being refracted to irradiate the front of the flashlight.
Referring to fig. 1 and 7, according to the above-mentioned embodiment of the present application, a first mounting hole 120 is disposed on a side wall of the base 100, a pin 600 is fixed at the first mounting hole 120, a sliding slot 521 is correspondingly disposed on an inner side wall of the adjusting ring 520, one end of the pin 600 is fixed to the first mounting hole 120, the other end of the pin 600 is connected to the sliding slot 521 so that the adjusting ring 520 can rotate relative to the base 100, a width of the sliding slot 521 is adapted to a diameter of the pin 600 so that the pin 600 can slide in the sliding slot 521, the sliding slot 521 is provided with a certain slope, and the slope of the sliding slot 521 is set within a range of 10 to 40 degrees, in this embodiment, the slope of the sliding slot 521 is 20 degrees, and when the third lens 510 rotates to a large angle, an included angle formed by a connecting line between a lowest point of the second lens 410 near an end surface of the rotating lens and a lowest point of the third lens 510 near the, when the inclination slope of the sliding groove 521 is smaller than the included angle, the protruding portions of the two adjacent end surfaces of the second lens 410 and the third lens 510 interfere with each other to cause the adjusting ring 520 to be incapable of rotating.
When dimming, the adjusting ring 520 rotates to drive the third lens 510 to rotate, the pin 600 slides in the chute 521 with a certain slope on the inner side of the adjusting ring 520, the third lens 510 is far away from the second lens 410 along with the rising of the position of the pin 600 while the adjusting ring 520 rotates, when the convex surface of the second lens 410 is aligned with the convex surface of the third lens 510, the pin 600 also reaches the lowest point of the slot and is limited, and at the moment, the dimming lens module is in a large-angle position. When the convex-concave surface of the second lens element 410 is matched with the convex-concave surface of the third lens element 510, the convex-concave surface of the second lens element 410 is completely engaged with the convex-concave surface of the third lens element 510, and at this time, the pin 600 also reaches the highest point for limiting, so that the second lens element 410 and the third lens element 510 are combined into a biconvex collimating lens, and at this time, the light-adjusting lens module is at a small angle.
Referring to fig. 6, according to the above-mentioned embodiment of the present application, a lens pressing ring 420 for fixing the second lens 410 is further installed at the opening 110, a first internal thread is provided on an inner side wall of the lens pressing ring 420, a first external thread is formed on the base 100, and the first internal thread and the first external thread cooperate to enable the lens pressing ring 420 to fix the second lens 410 at the opening 110 of the cavity, so as to ensure that the second lens 410 is fixed, wherein the lens pressing ring 420 and the second lens 410 form the secondary lens assembly 400.
Referring to fig. 7, according to the above-mentioned embodiment of the present application, the tertiary lens assembly 500 further includes a head pressing ring 530, an annular flange 531 is further disposed on an end surface of the head pressing ring 530 close to the second lens 410, a groove 522 is further correspondingly disposed at a first end of the adjusting ring 520, the annular flange 531 and the groove 522 cooperate to fixedly mount the third lens 510 at the first end of the adjusting ring 520, and in this embodiment, a sealing ring 700 is further disposed between the head pressing ring 530 and the third lens 510.
Referring to fig. 5 and 8, according to the above embodiment of the present application, the light source assembly 200 includes: the light source substrate 210 and the light source 220, the light source substrate 210 is fixedly installed in the cavity, the light source 220 is installed on the light source substrate 210 and electrically connected with the light source substrate 210, the light source substrate 210 is further provided with a lens support 320, in this embodiment, the lens support 320 is fixed on the light source substrate 210 through UV glue, the lens support 320 is provided with a second mounting hole, the first lens 310 is fixed at the second mounting hole, wherein the first lens 310 and the lens support 320 form a primary lens assembly 300, and a heat dissipation member is further arranged on an end surface of the lens support 320, which is close to the light source substrate 210, and can improve the heat dissipation efficiency of the heat dissipation assembly.
The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A dimming lens group for a lighting device, comprising:
a base (100) having a cavity with an opening (110) at one end;
a light source assembly (200) for providing a light source to the illumination device, the light source assembly (200) being fixedly mounted within the cavity;
the first lens (310) is fixedly arranged on the light source assembly (200) and is positioned in the light emitting direction of the light source assembly (200) and used for converging the light emitted by the light source assembly (200);
a second lens (410) fixedly installed at the opening (110) for condensing the light passing through the first lens (310) again;
a tertiary lens assembly (500) rotatably coupled to the base (100), comprising: the first end of the adjusting ring (520) is fixed with the third lens (510), the second end of the adjusting ring (520) is rotatably connected with the base (100) and used for adjusting the distance between the third lens (510) and the second lens (410) so that the angle of light emitted from the third lens (510) is changed, and the first end is opposite to the second end;
the light generated by the light source assembly (200) passes through the first lens (310), the second lens (410) and the third lens (510) in sequence.
2. The dimming lens group for an illumination device, according to claim 1, wherein the second lens (410) and the third lens (510) are both asymmetric aspheric curved surface structures, an end surface of the second lens (410) close to the third lens (510) is concave-convex wavy, an end surface of the third lens (510) close to the second lens (410) is also concave-convex wavy, and an end surface of the second lens (410) close to the third lens (510) and an end surface of the third lens (510) close to the second lens (410) are matched to adjust an angle of light rays emitted from the third lens (510) when the adjustment ring (520) and the base (100) are relatively rotated.
3. The dimming lens group of an illumination device according to claim 2, wherein a first mounting hole (120) is formed in a side wall of the base (100), a pin (600) is fixed at the first mounting hole (120), a sliding slot (521) is correspondingly formed in an inner side wall of the adjusting ring (520), one end of the pin (600) is fixed to the first mounting hole (120), and the other end of the pin (600) is connected to the sliding slot (521) so that the adjusting ring (520) can rotate relative to the base (100).
4. A dimming lens group for an illumination device according to any one of claims 1 to 3, wherein a lens pressing ring (420) for fixing the second lens (410) is further installed at the opening (110), an inner side wall of the lens pressing ring (420) is provided with a first inner thread, a first outer thread is formed on the base (100), and the first inner thread is matched with the first outer thread so that the lens pressing ring (420) fixes the second lens (410) at the opening (110) of the cavity.
5. The dimming lens group of an illumination device according to claim 4, wherein the tertiary lens assembly (500) further comprises a head pressing ring (530), an end surface of the head pressing ring (530) close to the second lens (410) is further provided with an annular flange (531), the first end of the adjusting ring (520) is further correspondingly provided with a groove (522), and the annular flange (531) is matched with the groove (522) to fixedly mount the third lens (510) at the first end of the adjusting ring (520).
6. A dimming lens group for a lighting device according to claim 5, wherein the light source assembly (200) comprises: the light source module comprises a light source substrate (210) and a light source (220), wherein the light source substrate (210) is fixedly arranged in the cavity, and the light source (220) is arranged on the light source substrate (210) and is electrically connected with the light source substrate (210).
7. The dimming lens group of an illumination device according to claim 6, wherein a lens holder (320) is further disposed on the light source substrate (210), a second mounting hole is disposed on the lens holder (320), and the first lens (310) is fixed at the second mounting hole.
8. The dimming lens group of a lighting device, according to claim 7, wherein a sealing ring (700) is further disposed between the head pressing ring (530) and the third lens (510).
9. The dimming lens group of a lighting device according to claim 3, wherein the sliding groove (521) has a slope, and the slope of the sliding groove (521) is in the range of 10-40 degrees.
10. The dimming lens group of an illumination device, as claimed in claim 7, wherein a heat sink is further disposed on an end surface of the lens holder (320) close to the light source substrate (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112569.4U CN212840802U (en) | 2020-06-16 | 2020-06-16 | Light-adjusting lens group of lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112569.4U CN212840802U (en) | 2020-06-16 | 2020-06-16 | Light-adjusting lens group of lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212840802U true CN212840802U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021112569.4U Active CN212840802U (en) | 2020-06-16 | 2020-06-16 | Light-adjusting lens group of lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212840802U (en) |
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2020
- 2020-06-16 CN CN202021112569.4U patent/CN212840802U/en active Active
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Address after: Building 2, Cuiheng International Science and Technology Innovation Center, No. 21 Beichen Road, Cuiheng New District, Zhongshan City, Guangdong Province, 528400, 604 Patentee after: Aolei Technology Group Co.,Ltd. Country or region after: China Address before: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee before: Zhongshan Aolei Technology Co.,Ltd. Country or region before: China Address after: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee after: Zhongshan Aolei Technology Co.,Ltd. Country or region after: China Address before: 518000 A2 fifth floor, Fuhai information port, Qiaotou community, Fuhai street, Shenzhen, Guangdong, Baoan District Patentee before: Shenzhen Olight E-Commerce Technology Co.,Ltd. Country or region before: China |
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