CN108194863A - A kind of L-type zoom shot-light - Google Patents
A kind of L-type zoom shot-light Download PDFInfo
- Publication number
- CN108194863A CN108194863A CN201711470647.0A CN201711470647A CN108194863A CN 108194863 A CN108194863 A CN 108194863A CN 201711470647 A CN201711470647 A CN 201711470647A CN 108194863 A CN108194863 A CN 108194863A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- zoom
- lamp housing
- light
- wall
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/05—Optical design plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
The invention discloses a kind of L-type zoom shot-lights, including lamp support, driving box is fixedly connected at the top of lamp support, first base is fixedly connected at the top of driving box inner wall, first base slidably connects zoom stent by the first sliding groove, driving device is fixedly connected on the left of driving box inner wall, one end of driving device output shaft is fixedly connected with screw rod, the surface of screw rod is threadedly coupled with zoom stent, the right end of screw rod and the inner wall of driving box are rotatablely connected, fixed plate is fixedly connected at the top of lamp housing inner wall, one end of zoom stent sequentially passes through driving box, lamp housing and fixed plate and the inside for extending to lamp housing, the present invention relates to lighting apparatus technical fields.The L-type zoom shot-light, by the Zoom structure of L-type inside lamp housing compared with common vertical zoom structure, the focal range bigger of shot-light, the range that can adjust zoom is wider, and the ability of shot-light zoom is stronger, and the space occupied smaller.
Description
Technical field
The present invention relates to lighting apparatus technical field, specially a kind of L-type zoom shot-light.
Background technology
Shot-light is the typically modern school illumination without king light, without set pattern mould, room lighting atmosphere can be built, if by a row
Small shot-light combines, and light can change marvellous pattern, since small shot-light can freely convert angle, the effect of combination lighting
Ever-changing, shot-light light is soft, elegant and poised, also can local daylighting, set off atmosphere by contrast.
Shot-light at this stage only has simple Zoom structure, is limited by shot-light shell sizes, and zoom is limited in scope.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of L-type zoom shot-light, it is small to solve shot-light zooming range
Problem.
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of L-type zoom shot-light, including lamp
Stent is fixedly connected with driving box at the top of the lamp support, first base is fixedly connected at the top of the driving box inner wall,
The first base slidably connects zoom stent by the first sliding groove, and driving is fixedly connected on the left of the driving box inner wall
Device, one end of the driving device output shaft are fixedly connected with screw rod, and the surface of the screw rod is threadedly coupled with zoom stent,
The right end of the screw rod and the inner wall of driving box are rotatablely connected；
Fixed plate is fixedly connected at the top of the lamp housing inner wall, one end of the zoom stent sequentially passes through driving
Box, lamp housing and fixed plate and the inside for extending to lamp housing, the zoom stent are located at one end difference inside lamp housing
Mobile convex lens and mobile concavees lens are fixedly connected with, the bottom of the lamp housing inner wall is fixedly connected with second base, described
The top of second base slidably connects sliding block, the bottom and cunning of the mobile convex lens and mobile concavees lens by second sliding slot
Block is fixedly connected；
Firm banking is fixedly connected on the left of the lamp housing inner wall, the side on the firm banking inclined-plane is fixedly connected
There is speculum, lamp cap is communicated on the left of the lamp housing bottom；
Top and bottom on the right side of the lamp housing inner wall has been fixedly connected with fixed block, and two fixed blocks are opposite
Fixed lens are fixedly connected between side；
Light source box is fixedly connected on the right side of the lamp housing, LED light is fixedly connected on the right side of the light source box inner wall,
The left side of the LED light runs through lamp housing and extends to the inside of lamp housing.
Preferably, the zoom stent includes driver plate, and the top of the driver plate passes through the first sliding groove and first base
It is slidably connected, the driver plate is connect by threaded hole with screw flight, and fixed branch is fixedly connected at the top of the driver plate
Frame, the support bracket fastened bottom offer the lens recess being adapted with mobile convex lens and mobile concavees lens.
Preferably, the side of the fixed plate surface offers convex lens shifting chute, the surface of the fixed plate and is located at
The right side opening of convex lens shifting chute is equipped with concavees lens shifting chute.
Preferably, the surface of the screw rod is provided with the reversed screw thread of opposite helical, close to the threaded one end of driving device
Intensive, the threaded one end far from driving device is sparse, and the screw pitch ratio of two screw threads is 3:1.
Preferably, the driving device is specially composite stepper motor, and operating voltage is 24 volts.
Preferably, the LED light is direct-current LED lamp, and operating voltage 24V, power is 5 watts, is passed through on the right side of the LED light
It wears light source box and extends to the outside of light source box, one end that the LED light is located at outside light source box is fixedly connected with live wire.
Advantageous effect
The present invention provides a kind of L-type zoom shot-lights.Has following advantageous effect：
(1), the L-type zoom shot-light, Zoom structure and common vertical zoom structure phase by L-type inside lamp housing
Than the zooming range bigger of shot-light, the range that can be adjusted is wider, and the ability of shot-light zoom is stronger, and the space occupied is more
It is small.
(2), the L-type zoom shot-light realizes the autonomous of two lens by the cooperation of driving device and screw rod, single to drive
Dynamic device can realize the synchronism enhancing of zoom, not have the delay that circuit control generates, and stable structure, not rapid wear
It is bad.
(3), the light of zoom is reflected lamp cap by the L-type zoom shot-light by reflective mirror, and lamp cap does not have stent to contact light
Source, the heat generated that shines will not be deposited in the position of lamp cap, can targetedly be radiated to light source box, be conducive to shot-light
Work long hours.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure diagram of zoom stent of the present invention；
Fig. 3 is the structure diagram of fixed plate of the present invention.
In figure：1 lamp housing, 2 zoom stents, 201 fixing brackets, 202 lens recess, 203 threaded holes, 204 driver plates, 3
Fixed plate, 301 convex lens shifting chutes, 302 concavees lens shifting chutes, 4 driving devices, 5 driving boxes, 6 screw rods, 7 fixed blocks, 8LED
Lamp, 9 light source box, 10 fix lens, 11 first bases, 12 second bases, 13 movement concavees lens, 14 sliding blocks, 15 movement convex lenses,
16 lamp caps, 17 speculums, 18 firm bankings, 19 the first sliding grooves, 20 second sliding slots.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of L-type zoom shot-light, including lamp support 1, lamp support
1 top is fixedly connected with driving box 5, drives and is fixedly connected with first base 11 at the top of 5 inner wall of box, first base 11 passes through
The first sliding groove 19 slidably connects zoom stent 2, and zoom stent 2 includes driver plate 204, and the top of driver plate 204 passes through first
Sliding slot 19 is slidably connected with first base 11, and driver plate 204 is threadedly coupled by threaded hole 203 with screw rod 6, driver plate 204
Top is fixedly connected with fixing bracket 201, and the bottom of fixing bracket 201 offers and mobile convex lens 15 and mobile concavees lens 13
The lens recess 202 being adapted drives and driving device 4 is fixedly connected on the left of 5 inner wall of box, and driving device 4 is specially to mix
Formula stepper motor, operating voltage are 24 volts, and one end of 4 output shaft of driving device is fixedly connected with screw rod 6, and the surface of screw rod 6 is set
The reversed screw thread of opposite helical is equipped with, the threaded one end close to driving device 4 is intensive, and the threaded one end far from driving device 4 is dilute
It dredges, the screw pitch ratio of two screw threads is 3:1, the surface of screw rod 6 is threadedly coupled with zoom stent 2, right end and the driving box 5 of screw rod 6
Inner wall rotation connection, be fixedly connected with fixed plate 3 at the top of 1 inner wall of lamp housing, the side on 3 surface of fixed plate offers convex lens
Mirror shifting chute 301, the surface of fixed plate 3 and the right side opening positioned at convex lens shifting chute 301 are equipped with concavees lens shifting chute 302, become
One end of burnt stent 2 sequentially passes through driving box 5, lamp housing 1 and fixed plate 3 and the inside for extending to lamp housing 1, zoom stent
2 one end being located inside lamp housing 1 have been respectively fixedly connected with mobile convex lens 15 and mobile concavees lens 13,1 inner wall of lamp housing
Bottom is fixedly connected with second base 20, and the top of second base 20 slidably connects sliding block 14 by second sliding slot 12, mobile
The bottom of convex lens 15 and mobile concavees lens 13 is fixedly connected with sliding block 14, and fixation is fixedly connected on the left of 1 inner wall of lamp housing
Pedestal 18, the side on 18 inclined-plane of firm banking are fixedly connected with speculum 17, and lamp housing is communicated with lamp cap 16 on the left of 1 bottom,
Top and bottom on the right side of 1 inner wall of lamp housing has been fixedly connected with fixed block 7, is fixed between the opposite side of two fixed blocks 7
Fixed lens 10 are connected with, the right side of lamp housing 1 is fixedly connected with light source box 9, is fixedly connected on the right side of 9 inner wall of light source box
LED light 8, the left side of LED light 8 run through lamp housing 1 and extend to the inside of lamp housing 1, and LED light 8 is direct-current LED lamp, is worked
Voltage is 24V, and power is 5 watts, and the right side of LED light 8 runs through light source box 9 and extends to the outside of light source box 9, and LED light 8 is located at
One end outside light source box 9 is fixedly connected with live wire.
During work, driving device 4 runs up time rotation, screw rod 6 is driven to rotate clockwise by output shaft one end, passes through change
Burnt stent 2 is so that mobile convex lens 15 and mobile concavees lens 13 are close, and the light that LED light 8 generates is by becoming defocused by speculum 17
It is transmitted to lamp cap 16 to project, the light source focal of LED light 8 is elongated, otherwise focal length shortens, realizes a wide range of zoom of lamps and lanterns.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of L-type zoom shot-light, including lamp support (1), it is characterised in that：It is fixedly connected at the top of the lamp support (1)
Box (5) is driven, is fixedly connected with first base (11) at the top of described driving box (5) inner wall, the first base (11) passes through
The first sliding groove (19) slidably connects zoom stent (2), and driving device is fixedly connected on the left of described driving box (5) inner wall
(4), one end of driving device (4) output shaft is fixedly connected with screw rod (6), surface and the zoom stent of the screw rod (6)
(2) it is threadedly coupled, the right end of the screw rod (6) is rotatablely connected with the inner wall of driving box (5)；
Fixed plate (3) is fixedly connected at the top of lamp housing (1) inner wall, one end of the zoom stent (2) sequentially passes through
Box (5), lamp housing (1) and fixed plate (3) and the inside for extending to lamp housing (1) are driven, the zoom stent (2) is positioned at lamp
The internal one end of shell (1) has been respectively fixedly connected with mobile convex lens (15) and mobile concavees lens (13), and the lamp housing (1) is interior
The bottom of wall is fixedly connected with second base (20), and the top of the second base (20) is slidably connected by second sliding slot (12)
There is a sliding block (14), the bottom of the mobile convex lens (15) and mobile concavees lens (13) is fixedly connected with sliding block (14)；
Firm banking (18), the side on firm banking (18) inclined-plane are fixedly connected on the left of lamp housing (1) inner wall
Speculum (17) is fixedly connected with, lamp cap (16) is communicated on the left of lamp housing (1) bottom；
Top and bottom on the right side of lamp housing (1) inner wall has been fixedly connected with fixed block (7), two fixed blocks (7)
Fixed lens (10) are fixedly connected between opposite side；
Light source box (9) is fixedly connected on the right side of the lamp housing (1), is fixedly connected on the right side of light source box (9) inner wall
LED light (8), the left side of the LED light (8) run through lamp housing (1) and extend to the inside of lamp housing (1).
2. a kind of L-type zoom shot-light according to claim 1, it is characterised in that：The zoom stent (2) is including driver plate
(204), the top of the driver plate (204) is slidably connected by the first sliding groove (19) and first base (11), the driver plate
(204) it is threadedly coupled by threaded hole (203) with screw rod (6), fixing bracket is fixedly connected at the top of the driver plate (204)
(201), the bottom of the fixing bracket (201) offer with mobile convex lens (15) and move concavees lens (13) be adapted it is saturating
Mirror groove (202).
3. a kind of L-type zoom shot-light according to claim 1, it is characterised in that：It opens the side on fixed plate (3) surface
Equipped with convex lens shifting chute (301), the surface of the fixed plate (3) and it is equipped with positioned at the right side opening of convex lens shifting chute (301)
Concavees lens shifting chute (302).
4. a kind of L-type zoom shot-light according to claim 1, it is characterised in that：The surface of the screw rod (6) is provided with phase
The reversed screw thread of backpitch, the threaded one end close to driving device (4) is intensive, and the threaded one end far from driving device (4) is sparse,
The screw pitch ratio of two screw threads is 3:1.
5. a kind of L-type zoom shot-light according to claim 1, it is characterised in that：The driving device (4) is specially to mix
Formula stepper motor, operating voltage are 24 volts.
6. a kind of L-type zoom shot-light according to claim 1, it is characterised in that：The LED light (8) is direct-current LED lamp,
Operating voltage is 24V, and power is 5 watts, and the right side of the LED light (8) through light source box (9) and extends to light source box (9)
Outside, the LED light (8) are fixedly connected with live wire positioned at the external one end of light source box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470647.0A CN108194863A (en) | 2017-12-29 | 2017-12-29 | A kind of L-type zoom shot-light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470647.0A CN108194863A (en) | 2017-12-29 | 2017-12-29 | A kind of L-type zoom shot-light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194863A true CN108194863A (en) | 2018-06-22 |
Family
ID=62585908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711470647.0A Pending CN108194863A (en) | 2017-12-29 | 2017-12-29 | A kind of L-type zoom shot-light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194863A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143726A (en) * | 2018-09-28 | 2019-01-04 | 深圳市科诺恩科技有限公司 | A kind of varifocal light-feeding instrument |
| CN113776004A (en) * | 2021-08-02 | 2021-12-10 | 深圳市傲雷电商科技股份有限公司 | Variable-focus fishing lamp with good sealing performance |
| CN113776003A (en) * | 2021-08-02 | 2021-12-10 | 深圳市傲雷电商科技股份有限公司 | Variable-focus fishing lamp |
| CN115046155A (en) * | 2022-08-11 | 2022-09-13 | 射阳港海会议服务有限公司 | Light source refraction device of illumination mechanism for exhibition and display site |
| CN118463088A (en) * | 2024-05-22 | 2024-08-09 | 广东虹雨照明工程建设有限公司 | High-power LED shot-light of outdoor engineering of variable focus |
| CN118463088B (en) * | 2024-05-22 | 2024-10-25 | 广东虹雨照明工程建设有限公司 | High-power LED shot-light of outdoor engineering of variable focus |
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| CN1682066A (en) * | 2002-09-09 | 2005-10-12 | 丸茂电机株式会社 | Spotlight |
| CN201819066U (en) * | 2010-10-14 | 2011-05-04 | 云南邦桥节能科技有限公司 | LED (light emitting diode) lamp |
| CN202056740U (en) * | 2009-07-23 | 2011-11-30 | 杨凤元 | Projection lamp for computerized color-changing screen wall of outdoor high-rise building |
| CN104728793A (en) * | 2013-12-23 | 2015-06-24 | 深圳市海洋王照明工程有限公司 | Lamp holder component and lamp |
| CN205065618U (en) * | 2015-09-17 | 2016-03-02 | 湖南锐星光电设备有限公司 | Formation of image lamp focusing structure zooms |
| CN205606339U (en) * | 2016-04-25 | 2016-09-28 | 西安科技大学 | Appearance probe unit is spied on in drilling that can zoom |
| CN107349886A (en) * | 2017-09-05 | 2017-11-17 | 重庆文理学院 | A kind of photo catalysis reactor for testing multi-component reaction |
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2017
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| CN1682066A (en) * | 2002-09-09 | 2005-10-12 | 丸茂电机株式会社 | Spotlight |
| CN202056740U (en) * | 2009-07-23 | 2011-11-30 | 杨凤元 | Projection lamp for computerized color-changing screen wall of outdoor high-rise building |
| CN201819066U (en) * | 2010-10-14 | 2011-05-04 | 云南邦桥节能科技有限公司 | LED (light emitting diode) lamp |
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| CN205065618U (en) * | 2015-09-17 | 2016-03-02 | 湖南锐星光电设备有限公司 | Formation of image lamp focusing structure zooms |
| CN205606339U (en) * | 2016-04-25 | 2016-09-28 | 西安科技大学 | Appearance probe unit is spied on in drilling that can zoom |
| CN107349886A (en) * | 2017-09-05 | 2017-11-17 | 重庆文理学院 | A kind of photo catalysis reactor for testing multi-component reaction |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143726A (en) * | 2018-09-28 | 2019-01-04 | 深圳市科诺恩科技有限公司 | A kind of varifocal light-feeding instrument |
| CN113776004A (en) * | 2021-08-02 | 2021-12-10 | 深圳市傲雷电商科技股份有限公司 | Variable-focus fishing lamp with good sealing performance |
| CN113776003A (en) * | 2021-08-02 | 2021-12-10 | 深圳市傲雷电商科技股份有限公司 | Variable-focus fishing lamp |
| CN115046155A (en) * | 2022-08-11 | 2022-09-13 | 射阳港海会议服务有限公司 | Light source refraction device of illumination mechanism for exhibition and display site |
| CN118463088A (en) * | 2024-05-22 | 2024-08-09 | 广东虹雨照明工程建设有限公司 | High-power LED shot-light of outdoor engineering of variable focus |
| CN118463088B (en) * | 2024-05-22 | 2024-10-25 | 广东虹雨照明工程建设有限公司 | High-power LED shot-light of outdoor engineering of variable focus |
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Application publication date: 20180622 |
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