CN212584890U - Lens assembly with adjustable irradiation angle and lamp - Google Patents
Lens assembly with adjustable irradiation angle and lamp Download PDFInfo
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- CN212584890U CN212584890U CN202022038290.2U CN202022038290U CN212584890U CN 212584890 U CN212584890 U CN 212584890U CN 202022038290 U CN202022038290 U CN 202022038290U CN 212584890 U CN212584890 U CN 212584890U
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Abstract
The utility model provides a lens component with adjustable irradiation angle and a lamp, which comprises a lens component A and a lens component B; a plurality of floodlight lenses and a plurality of condensing lenses which are equal in number are arranged on the lens component A in a circumferential array manner, and the floodlight lenses and the condensing lenses are sequentially and alternately arranged; the lens component B is provided with a plurality of light-focusing parts and a plurality of micro-structure parts in a circumferential array manner, the number of the light-focusing parts and the number of the micro-structure parts are equal to that of the flood type lens, and the light-focusing parts and the micro-structure parts are sequentially and alternately arranged; the lens component A and the lens component B are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens component A and the middle point of the lens component B, and when the light condensed by the light-condensing lens passes through the microstructure part, the light condensed by the floodlight lens passes through the light-condensing part; compare in adjusting the grading angle through the relative axial distance between adjustment lens and the light source, this scheme simple structure, adjustment are convenient, more do benefit to the miniaturization of lamps and lanterns.
Description
Technical Field
The utility model relates to an illumination lamps and lanterns field particularly, relates to a shine lens subassembly and lamps and lanterns of angularly adjustable.
Background
Most of the existing lighting lamps only have one of spotlight lighting or floodlight lighting modes, the distance between a light source and a light cup (or a lens) is relatively fixed, the function is single, and the use scene of the lighting lamps is limited.
Some lamps capable of adjusting the light distribution angle in the market mostly realize the zooming and angle changing by adjusting the relative axial distance between the lens and the light source, for example, the "light adjusting lamp and light adjusting method" disclosed in the chinese patent application with application number 200710125327.1, which adjusts the position of the second reflecting cup between the first reflecting cup and the light source through the adjusting device, so that the light emitted by the light source mainly irradiates on the first reflecting cup or the second reflecting cup, thereby realizing the corresponding long-distance illumination or short-distance illumination.
The light distribution angle is adjusted by the adjusting mode under the condition that the light cup (or the lens) is not replaced, and a complex zooming and positioning structure is needed for adjusting the axial distance, so that the whole lamp is complex in structure and large in size.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming of background art, provide a mode through rotatory adjustment adjusts lens and lamps and lanterns of grading angle, simple structure and adjustment convenience.
The embodiment of the utility model discloses a realize through following technical scheme:
the lens assembly with adjustable illumination angle comprises a lens assembly A and a lens assembly B;
a plurality of floodlight lenses and a plurality of condensing lenses which are equal in number are arranged on the lens component A in an array shape around the circumference of the midpoint, and the floodlight lenses and the condensing lenses are alternately arranged in sequence;
a plurality of light-focusing parts and micro-structure parts for mixing light are arranged on the lens component B in an array shape around the circumference of the midpoint, the number of the light-focusing parts and the number of the micro-structure parts are equal to that of the flood type lenses, and the light-focusing parts and the micro-structure parts are sequentially and alternately arranged;
the lens assembly A and the lens assembly B are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens assembly A and the middle point of the lens assembly B; when the light condensed by the condensing lens passes through the micro-structure portion, the light passing through the flood lens passes through the condensing portion.
In some preferred embodiments, the plurality of light condensing portions are disposed on the light incident surface or the light emitting surface of the lens assembly B.
In some preferred embodiments, the plurality of microstructure portions are disposed on the light incident surface or the light emitting surface of the lens assembly B.
In some preferred embodiments, the light-gathering part is a convex structure or a fresnel sawtooth structure provided on the lens assembly B.
In some preferred embodiments, the microstructure portion is a bump structure, a pit structure, or a frosted structure provided on the lens assembly B.
In some preferred embodiments, the condensing lens is a collimating lens.
In some preferred embodiments, the condensing lens and the floodlight lens are both in the shape of light cups, and the outer wall of the condensing lens and the outer wall of the floodlight lens are both totally-reflective curved surfaces.
A lamp is provided, wherein the lens assembly with adjustable irradiation angle is used in the lamp.
The included angle between the light converged by the condensing lens and the optical axis of the condensing lens is smaller than the included angle between the light emergent from the floodlight lens and the optical axis of the floodlight lens;
when large-angle short-distance irradiation is needed, the lens component A and the lens component B are relatively rotated, so that the light emitting surfaces of the plurality of light-gathering lenses correspond to the plurality of light-gathering parts one by one, and the light emitting surfaces of the plurality of floodlight lenses correspond to the plurality of micro-structure parts one by one; the light converged by the light-converging lens is refracted at a large angle at the light-converging part and then emitted, and the light emitted by the floodlight lens is refracted at a small angle at the microstructure part and then emitted;
when small-angle remote irradiation is needed, the lens component A and the lens component B are relatively rotated, so that the light emitting surfaces of the plurality of light-focusing lenses correspond to the plurality of microstructure parts one by one, and the light emitting surfaces of the plurality of floodlight lenses correspond to the plurality of light-focusing parts one by one; the light converged by the condensing lens is refracted at a small angle at the microstructure part and then emitted, and the light converged by the floodlight lens is refracted at a large angle at the condensing part and then emitted.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
in the lens assembly with adjustable irradiation angle of the utility model, through relatively rotating the lens assembly A and the lens assembly B, the flood type lens and the condensing type lens can respectively combine with the micro-structure part and the condensing part to form a light distribution, so that the lamp using the adjustable lens assembly can have two light distribution modes of large-angle close irradiation and long-distance small-angle irradiation; compared with the light distribution angle adjusted by adjusting the relative axial distance between the lens and the light source, the light distribution angle adjusting device is more convenient to adjust, simpler in structure and more beneficial to miniaturization of the lamp.
Drawings
Fig. 1 is a schematic structural diagram of a lens assembly and a lamp with adjustable illumination angle according to the present invention in a state 1;
fig. 2 is a schematic structural diagram of the lens assembly with adjustable illumination angle and the lamp in the state 2;
fig. 3 is a schematic diagram of the optical path of the lens assembly and the lamp with adjustable illumination angle in the state 1;
fig. 4 is a schematic diagram of the optical path of the lens assembly and the lamp with adjustable illumination angle in the state 2;
fig. 5 is a schematic structural diagram of a lens assembly and a lamp with adjustable illumination angle provided in embodiment 2 of the present invention;
fig. 6 is a schematic structural diagram of a lens assembly and a lamp with adjustable illumination angles according to embodiment 3 of the present invention;
icon: the light source comprises a 1-lens component A, 11-floodlight type lens, 111-first total reflection curved surface, 112-first light condensation convex surface, 113-first light incoming surface, 12-light condensation type lens, 121-second total reflection curved surface, 122-second light condensation convex surface, 123-second light incoming surface, a 2-lens component B, 21-light condensation part, 211-central convex surface, 22-microstructure part and 3-light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a lens assembly with adjustable illumination angle, which includes a lens assembly a1 and a lens assembly B2.
The lens assembly a1 is provided with a plurality of flood lenses 11 and condenser lenses 12 in equal number in an array shape around the circumference of the midpoint, in this embodiment, the lens assembly a1 is in a disc shape, 3 groups of flood lenses 11 and 3 groups of condenser lenses 12 are arranged on the lens assembly a1, and the 3 groups of flood lenses 11 and 3 groups of condenser lenses 12 can be integrally formed with the lens assembly a1, and can also be installed in a detachable connection manner.
In this embodiment, as shown in fig. 1 and fig. 2, the outlines of the flood lens 11 and the condenser lens 12 are both in the shape of a light cup, and the outer wall of the condenser lens and the outer wall of the flood lens 11 are both fully reflective curved surfaces, that is, the outer wall surface of the flood lens 11 is a first fully reflective curved surface 111, the outer wall surface of the condenser lens 12 is a second fully reflective curved surface 121, an included angle between an emergent ray of the flood lens 11 and its own optical axis is a large-angle type of 30 ° to 90 °, and an included angle between an emergent ray of the condenser lens 12 and its own optical axis is 0 ° to 30 °, so in some preferred embodiments, the condenser lens 12 may be a collimating lens.
In addition, as shown in fig. 1 and fig. 2, the bottom of the lens of the floodlight lens 11 is provided with a light inlet hole, the bottom of the light inlet hole is a first light-gathering convex surface 112, and the side wall of the light inlet hole is a first light-entering surface 113; the bottom of the condensing lens 12 is also provided with a light inlet hole, the bottom of the light inlet hole is a second condensing convex surface 122, and the side wall of the light inlet hole is a second light inlet surface 123.
In some preferred embodiments, the first convex light-gathering surface 112 of the floodlight lens 11 and the second convex light-gathering surface 122 of the condenser lens 12 can be both concave surfaces, and can also be fresnel sawtooth surfaces.
The 3 floodlight type lenses 11 and the 3 condenser type lenses 12 are arranged in a circumferential array around the center of the disc of the lens gradually A1, and the 3 floodlight type lenses 11 and the 3 condenser type lenses 12 are alternately arranged at regular intervals.
The lens component B2 is in a disc shape, and 3 groups of light- gathering parts 21 and 3 groups of micro-structure parts 22 for mixing light are arranged on the surface of the lens component B2 in an array shape around the midpoint circumference of the disc, that is, the number of the light-gathering parts 21 and the number of the micro-structure parts 22 are equal to the number of the flood type lenses 11, and the 3 light-gathering parts 21 and the 3 micro-structure parts 22 are alternately arranged at regular intervals in sequence.
The 3 groups of light-condensing portions 21 and the 3 groups of microstructure portions 22 can be integrally formed with the lens component B2, the surface of the lens component B2 can be a plane or an arc surface, and the 3 groups of light-condensing portions 21 and the 3 groups of microstructure portions 22 can be optionally arranged on the light incident surface or the light emergent surface of the lens component B2, that is: while the light-gathering parts 21 are disposed on the light incident surface or the light emitting surface of the lens assembly B2, the microstructure parts 22 may also be disposed on the light incident surface or the light emitting surface of the lens assembly B2.
The light-gathering portion 21 is a convex structure or a fresnel sawtooth structure, which is disposed on the lens assembly B2, in this embodiment, the light-gathering portion is a fresnel sawtooth structure, and the micro-structural portion 22 may be a convex point structure or a concave point structure or a frosted structure, which is disposed on the lens assembly B2, in this embodiment, the micro-structural portion is a convex point micro-light mixing structure.
The area of each group of the light-gathering part 21 and the microstructure part 22 is circular, and the size of the circular area of the light-gathering part 21 and the size of the circular area of the microstructure part 22 are consistent with the size of the light-emitting surface of the floodlight lens 11 and the size of the light-emitting surface of the light-gathering lens 12.
The lens assembly A1 and the lens assembly B2 are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens assembly A1 and the middle point of the lens assembly B2, and when the light converged by the 3 groups of the light-gathering lenses 12 respectively passes through the group of the micro-structure parts 22, the light of the 3 groups of the floodlight lenses 11 respectively passes through the group of the light-gathering parts 21; rotated by 60 deg., the light of 3 groups of the condenser lenses 12 passes through one group of the condenser portions 21, and the light of 3 groups of the floodlight lenses 11 passes through one group of the microstructure portions 22.
Example 2
As shown in fig. 5, the present embodiment provides a lamp, in which the lens assembly with adjustable irradiation angle is used, and the light inlet hole of each group of the flood lens 11 and the light inlet hole of the condensing lens 12 are both provided with an LED type light source 3.
Example 3
As shown in fig. 6, the present embodiment provides a lamp using the lens assembly with adjustable illumination angle, which is different from embodiment 2 in that:
two or more groups of light-gathering portions 21 form a group of light-gathering units, specifically, 3 groups of light-gathering portions 21 form a group of light-gathering units in the embodiment, and the shape of the light-gathering units formed by combining the light-gathering units is not limited to the triangle shown in fig. 6, and may also be a square, a circle or other irregular shapes;
similarly, two or more groups of the microstructure portions 22 form a group of microstructure units, specifically, 3 groups of the microstructure portions form a group of microstructure units in the embodiment, and the shape of the microstructure units formed by combining the microstructure units is not limited to the triangle shown in fig. 6, and may also be a square, a circle, or other irregular shapes;
similarly, two or more groups of flood lenses 11 form a group of flood lens units, specifically, 3 groups of flood lenses 11 form a group of flood lens units in the embodiment, and the shape of the combined flood lens units is not limited to a triangle, and can also be a square, a circle or other irregular shapes;
similarly, two or more groups of condensing lenses 12 form a group of condensing lens units, and the shape of the condensing lens units formed by combining the condensing lenses is not limited to a triangle, but can also be a square, a circle or other irregular shapes;
the lens assembly A1 comprises a plurality of groups of floodlight lens units and a plurality of groups of condensing lens units, wherein the floodlight lens units and the condensing lens units are arranged around the circle center circumference of the lens assembly A1 alternately, the condensing units and the microstructure units are arranged around the circle center circumference of the lens assembly B2 alternately, and the condensing units and the microstructure units are arranged alternately in sequence;
in this embodiment, each group of the condensing portions 21, each group of the microstructure portions 22, each group of the flood lenses 11, and each group of the condensing lenses 12 in embodiment 2 are respectively equivalent to the condensing unit, the microstructure unit, the flood lens unit, and the condensing lens unit in this embodiment, and the action principle is consistent with embodiment 2 and is not described herein again.
In addition, the light inlet of each group of the floodlight type lens 11 and the light inlet of the condenser lens 12 are provided with LED type light sources 3.
Example 4
As shown in fig. 1 to 5, the present embodiment discloses a dimming method of a lamp in embodiment 2;
as shown in fig. 3 and 4, since the floodlight lens 11 and the condenser lens 12 have different optical properties, an angle between the light condensed by the condenser lens 12 and the optical axis of the condenser lens 12 is smaller than an angle between the light emitted by the floodlight lens 11 and the optical axis of the floodlight lens 11.
As shown in fig. 3, in the state 1, when a large-angle short-distance illumination is required, the lens assembly a1 and the lens assembly B2 are relatively rotated, so that the light-emitting surface of each group of the light-collecting lenses 12 on the left side in the figure corresponds to one group of the light-collecting portions 21, and the light-emitting surface of each group of the floodlight lenses 11 on the right side corresponds to one group of the microstructure portions 22;
the light emitted by the left light source 3 is refracted by the second light incident surface 123 of the condensing lens 12, and then is totally reflected by the second total reflection curved surface 121, the included angle between the light emergent direction and the optical axis of the condensing lens 12 is small and nearly parallel, and the light passes through the condensing part 21 of the lens component B2 and is refracted at a large angle, deviates from the optical axis, and finally is emitted in the large-angle direction; the other part of the light is condensed and refracted by the second condensing convex surface 122, has a small included angle with the optical axis and is close to collimated light, and is refracted when passing through the central convex surface 211 at the center of the condensing part 21 of the Fresnel sawtooth structure, so that the light is refracted at a large angle, and is emitted in a large-angle direction;
the light emitted by the right light source 3 is refracted through the first light incident surface 113 of the floodlight lens 11, and then is totally reflected through the first total reflection curved surface 11, the light emergent direction deviates from the optical axis of the floodlight lens 11, and the included angle with the optical axis is larger, and is refracted and mixed through the microstructure part 22 of the lens component B2, the light is still emitted in the large-angle direction after being slightly refracted, the other part of the light is refracted through the first light-gathering convex surface 112 at the bottom of the light-entering hole, the light emergent direction deviates from the optical axis of the floodlight lens 11, and the included angle with the optical axis is larger, and is refracted and mixed through the microstructure part 22 of the lens component B2, the light is emitted in the large-angle direction after being slightly refracted, and is combined into the maximum light distribution angle through two types of the 3 groups of the floodlight lenses 11 and the 3 groups of the light-gathering lenses 12.
As shown in fig. 4, in the state 2, when a small-angle long-distance irradiation is required, the lens assembly a1 and the lens assembly B2 are relatively rotated by 60 degrees with respect to the state 1, so that the light emitting surfaces of the plurality of condensing lenses 12 correspond to the plurality of microstructure portions 22 one by one, and the light emitting surfaces of the plurality of flood lenses 11 correspond to the plurality of condensing portions 21 one by one;
light that left light source 3 sent, after the refraction of the second income plain noodles 123 through spotlight type lens 12, through second total reflection curved surface 121 total reflection, light outgoing direction is on a parallel with spotlight type lens 12 optical axis basically, after the micro-structure portion 22 refraction of lens subassembly B2 again, light slightly deviates from the optical axis, finally jet out toward optical axis small-angle direction, another part light is after the spotlight refraction of second spotlight convex surface 122, be close to collimated light beam, carry out the secondary refraction mixed light through micro-structure portion 22 in lens subassembly B2 again, make light slightly refract, finally jet out toward optical axis small-angle direction.
Light emitted by the light source 3 on the right side is reflected by the first total reflection curved surface 111 after being refracted by the first light incident surface 113 of the floodlight lens 12, the emergent direction of the light deviates from the optical axis of the floodlight lens 12 and has a larger included angle with the optical axis, the light is refracted by a large angle in the opposite direction after passing through the light condensing part 21 of the fresnel tooth-shaped structure of the lens component B2, so that the light is finally emitted in the small-angle direction of the optical axis, the other part of the light is slightly refracted by the first light condensing convex surface 112, the emergent direction of the light deviates from the optical axis of the floodlight lens 12 and has a larger included angle with the optical axis, and the light is refracted by the light condensing part 21 of the fresnel tooth-shaped structure of the lens component B2 for the second time, and the light is refracted; the two types of light distribution angles of the 3 groups of floodlight lenses 11 and the 3 groups of condensing lenses 12 are combined into a small light distribution angle, so that the small-distance and small-angle illumination device is suitable for the requirements of long-distance and small-angle illumination.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The lens assembly with the adjustable illumination angle is characterized by comprising a lens assembly A (1) and a lens assembly B (2);
a plurality of floodlight lenses (11) and a plurality of condensing lenses (12) which are equal in number are arranged on the lens component A (1) in an array shape around the circumference of the midpoint, and the floodlight lenses (11) and the condensing lenses (12) are sequentially and alternately arranged;
a plurality of light-gathering parts (21) and a plurality of micro-structure parts (22) are arranged on the lens component B (2) in an array shape around the circumference of the midpoint, the number of the light-gathering parts (21) and the number of the micro-structure parts (22) are equal to that of the flood type lenses (11), and the light-gathering parts (21) and the micro-structure parts (22) are alternately arranged in sequence;
the lens component A (1) and the lens component B (2) are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens component A (1) and the middle point of the lens component B (2); when the light emitted through the condensing lens (12) passes through the microstructure portion (22), the light passing through the floodlight lens (11) passes through the condensing portion (21).
2. The adjustable illumination angle lens assembly of claim 1, wherein: the light condensing parts (21) are arranged on the light incident surface or the light emergent surface of the lens component B (2).
3. The illumination angle adjustable lens assembly according to claim 1 or 2, wherein: the plurality of microstructure parts (22) are arranged on the light incident surface or the light emergent surface of the lens component B (2).
4. The adjustable illumination angle lens assembly of claim 2, wherein: the light-gathering part (21) is a convex surface structure or a Fresnel sawtooth structure arranged on the lens component B (2).
5. The adjustable illumination angle lens assembly of claim 3, wherein: the micro-structure part (22) is a convex point structure or a concave point structure or a frosted structure arranged on the lens component B (2).
6. The adjustable illumination angle lens assembly of claim 1, wherein: the condensing lens (12) and the floodlight lens (11) are both in a light cup shape, and the outer wall of the condensing lens (12) and the outer wall of the floodlight lens (11) are both total reflection curved surfaces.
7. The adjustable illumination angle lens assembly of claim 6, wherein: the bottom of spotlight type lens (12) and the bottom of floodlight type lens (11) all are equipped with one and go into the unthreaded hole, the light entrance hole bottom of floodlight type lens (11) is equipped with first spotlight convex surface (112), the light entrance hole bottom of spotlight type lens (12) is equipped with second spotlight convex surface (122).
8. The adjustable illumination angle lens assembly of claim 6, wherein: the bottom of spotlight type lens (12) and the bottom of floodlight type lens (11) all are equipped with one and go into the unthreaded hole, the income unthreaded hole bottom of floodlight type lens (11) with the income unthreaded hole bottom of spotlight type lens (12) all is equipped with fresnel sawtooth structure.
9. The lens assembly with the adjustable illumination angle is characterized by comprising a lens assembly A (1) and a lens assembly B (2);
a plurality of floodlight type lens units and a plurality of condensing type lens units which are equal in number are arranged on the lens component A (1) in an array shape around the circumference of the midpoint, and the floodlight type lens units and the condensing type lens units are alternately arranged in sequence;
a plurality of light gathering units and a plurality of microstructure units are arranged on the lens component B (2) in an array shape around the circumference of the midpoint, the number of the light gathering units and the number of the microstructure units are equal to that of the floodlight type lens units, and the light gathering units and the microstructure units are alternately arranged in sequence;
the floodlight type lens unit comprises at least two groups of floodlight type lenses (11), and the condenser type lens unit comprises at least two groups of condenser type lenses (12); the light-gathering unit comprises at least two groups of light-gathering parts (21), and the microstructure unit comprises at least two groups of microstructure parts (22);
the lens component A (1) and the lens component B (2) are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens component A (1) and the middle point of the lens component B (2); when the light condensed by the condensing lens unit passes through the micro structure unit, the light passing through the floodlight lens unit passes through the condensing unit.
10. A light fixture, characterized by: the lamp is provided with the lens assembly with adjustable illumination angle, which is disclosed by any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022038290.2U CN212584890U (en) | 2020-09-16 | 2020-09-16 | Lens assembly with adjustable irradiation angle and lamp |
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| CN202022038290.2U CN212584890U (en) | 2020-09-16 | 2020-09-16 | Lens assembly with adjustable irradiation angle and lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738710A (en) * | 2022-03-23 | 2022-07-12 | 深圳市百康光电有限公司 | Zoom lens and illumination apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738710A (en) * | 2022-03-23 | 2022-07-12 | 深圳市百康光电有限公司 | Zoom lens and illumination apparatus |
| CN114738710B (en) * | 2022-03-23 | 2024-05-17 | 深圳市百康光电有限公司 | Zoom lens and illumination apparatus |
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