CN108224249A - A kind of LED light at variable beam angle - Google Patents
A kind of LED light at variable beam angle Download PDFInfo
- Publication number
- CN108224249A CN108224249A CN201810162804.XA CN201810162804A CN108224249A CN 108224249 A CN108224249 A CN 108224249A CN 201810162804 A CN201810162804 A CN 201810162804A CN 108224249 A CN108224249 A CN 108224249A
- Authority
- CN
- China
- Prior art keywords
- led light
- beam angle
- lamp plate
- light source
- shaft
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005286 illumination Methods 0.000 description 4
- 241001465382 Physalis alkekengi Species 0.000 description 3
- 241001347978 Major minor Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement 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
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
-
- 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)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a kind of LED light at variable beam angle, including lamp plate, LED light source, adjustment structure and the exit facet being made of at least two reflectors, the exit facet is located at the top of the LED light source, for reflecting the light that the LED light source projects, the exit facet is free form surface, the LED light source is fixed on the lamp plate, and the adjustment structure is fixedly connected with the lamp plate, for changing the projecting direction of LED light source light.The present invention relates to lighting technical field, a kind of LED light at variable beam angle passes through the projecting direction of adjustment structure change LED light source light, pass through exit facet secondary light-distribution, change the beam angle of LED light, it is more convenient compared with the prior art replaces optical accessories change beam angle.
Description
Technical field
The present invention relates to lighting technical field more particularly to a kind of LED light at variable beam angle.
Background technology
LED floodlight is mainly used to do building decoration illumination, main to apply in single building, historical building group exterior wall photograph
The illuminations such as bright, lighting through light inside the building, indoor local lighting, Afforestation Landscape illumination, billboard lighting, Medical culture.It is existing
LED floodlight mostly using reflector as secondary light-distribution design, by shaft connection fixing bracket, so as to reach adjusting lamp
Has the purpose of direction of illumination, the beam angle that such design results in lamps and lanterns is certain value, and lamps and lanterns use scope is small, in different items
It is irradiated under part, it is necessary to which the lamps and lanterns of a variety of beam angles, therefore, existing LED floodlight need change light irradiation range that can only lead to
The optical accessories inside replacing are crossed, it is of high cost, and replace inconvenience.
Invention content
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of LED easy to use, variable beam angle
Lamp.
The technical solution adopted in the present invention is：
A kind of LED light at variable beam angle is made of including lamp plate, LED light source, adjustment structure and at least two reflectors
Exit facet, the exit facet is located at the top of the LED light source, described for reflecting the light that the LED light source projects
Exit facet is free form surface, and the LED light source is fixed on the lamp plate, and the adjustment structure is fixedly connected with the lamp plate,
For changing the projecting direction of LED light source light.
As being further improved for said program, the reflector includes main reflector and at least one subreflector, institute
It states the position of main reflector and the position of the subreflector and so that the light that the LED light source projects can be by the principal reflection
Device reflection projects or causes the light that the LED light source projects to be reflexed to after the main reflector again via the subreflector
It projects, the main reflector and the subreflector are free-form surface reflector.
As being further improved for said program, the adjustment structure includes shaft, one end of the shaft and the lamp
Plate is fixedly connected, and when the shaft rotates, the shaft drives lamp plate rotation, changes the projection side of the LED light source light
To change projects the light ratio on the main reflector and the subreflector, and then changes the beam angle of LED light.
As being further improved for said program, the adjustment structure further includes sliding groove, the other end position of the shaft
In in the sliding groove, the shaft can be moved horizontally along the relatively described reflector of the sliding groove or vertical direction moves
It is dynamic, the lamp plate is driven to move, changes the focal length of the main reflector and the focal length of the subreflector, and then change LED light
Beam angle.
As being further improved for said program, the sliding groove is L-shaped.
As being further improved for said program, the main reflector and the subreflector are seamlessly connected, the reflection
Device is in dome-shaped.
As being further improved for said program, the shaft is located at the middle part of the lamp plate, fixes and connects with the lamp plate
It connects.
As being further improved for said program, the shaft is located at the lamp plate close to one end of the main reflector,
It is fixedly connected with the lamp plate.
As being further improved for said program, the shaft is located at the lamp plate close to one end of the subreflector,
It is fixedly connected with the lamp plate.
As being further improved for said program, the shaft is located at the either above or below of the lamp plate, with the lamp
Plate is fixedly connected.
The beneficial effects of the invention are as follows：
A kind of LED light at variable beam angle is changed the projecting direction of LED light source light by adjustment structure, passes through outgoing
Face secondary light-distribution changes the beam angle of LED light, more convenient compared with the prior art replaces optical accessories change beam angle.
Description of the drawings
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of LED light overall structure diagram at variable beam angle of the present invention；
Fig. 2 (a) and Fig. 2 (b) are a kind of different schematic diagrames of LED light rotating shaft position at variable beam angle of the present invention；
Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are that a kind of LED light LED light source light three at variable beam angle of the present invention is different
The schematic diagram of projecting direction；
Fig. 4 (a) is a kind of light distribution curve of the LED light one embodiment at variable beam angle of the present invention；
Fig. 4 (b) is a kind of light distribution curve of another embodiment of the LED light at variable beam angle of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.
Fig. 1 is a kind of LED light overall structure diagram at variable beam angle of the present invention, with reference to Fig. 1, a kind of variable beam angle
LED light, including lamp plate 1, LED light source 2, at least two reflectors form exit facet and adjustment structure.Exit facet is arranged on
Light is projected, to change the direction of beam projecting in the top of LED light source 2 for reflex LED light source 2.Wherein, exit facet is certainly
By curved surface, LED light source 2 is fixed on lamp plate 1, and adjustment structure is fixedly connected with lamp plate 1, for changing the throwing of LED light source light
Penetrate direction.
Reflector includes main reflector 3 and subreflector 4, and main reflector 3 and subreflector 4 are free form surface reflection
Device, the position of main reflector 3 and the position of subreflector 4 cause the light that LED light source 2 projects that can be reflected by main reflector 3
Project or cause the light of the injection of LED light source 2 is reflexed to via subreflector 4 after main reflector 3 to project again, 3 He of main reflector
Subreflector 4 is free-form surface reflector.After the light that LED light source is sent out reaches subreflector 4, it is re-reflected into main reflector
It is reflected again on 3, the design of secondary reflection makes light controllability stronger.
Specifically, adjustment structure includes shaft 5, one end of shaft 5 is fixedly connected with lamp plate 1.Shaft 5 is arranged on lamp plate 1
Middle part, be fixedly connected with lamp plate 1.Fig. 2 (a) and Fig. 2 (b) be a kind of LED light rotating shaft position at variable beam angle of the present invention not
Same schematic diagram, difference lies in as shown in Fig. 2 (a), shaft 5 is arranged on lamp plate 1 close to main reflector 3 with above-described embodiment
One end, be fixedly connected with lamp plate 1；Alternatively, shaft 5 is arranged on lamp plate 1 close to one end of subreflector 4, fixes and connect with lamp plate 1
It connects.As shown in Fig. 2 (b), shaft 5 is arranged on the either above or below of lamp plate 1, and shaft 5 is fixed by support column and lamp plate 1 to be connected
It connects.When shaft 5 rotates, shaft 5 drives lamp plate 1 to rotate, and realizes the projecting direction for changing 2 light of LED light source, and change projects
Light ratio on the main reflector and the subreflector, and then change the beam angle of LED light.
Specifically, with reference to Fig. 1, adjustment structure further includes sliding groove 6, and the other end of shaft 5 is located in sliding groove 6, more
Specifically, sliding groove 6 is L-shaped, shaft 5 can be moved horizontally along 6 relative reflection device of sliding groove or vertical direction moves,
The lamp plate is driven to move, changes the focal length of the main reflector and the focal length of the subreflector, and then change the light of LED light
Beam angle.
Specifically, Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are a kind of LED light LED light source light at variable beam angle of the present invention
The schematic diagram of three different projecting directions, when the light of most of LED light source outgoing is irradiated to main reflector 3, such as Fig. 3 (a),
At this point, reflector plays convergence effect of light, the beam angle of the LED light is small beam angle；When the light of half LED light source outgoing shines
Be mapped on main reflector 3, the light of the other half LED light source outgoing is when being irradiated on subreflector 4, such as Fig. 3 (b), at this point, should
The beam angle of LED light is medium beam angle；When the light of most of LED light source outgoing is irradiated to subreflector 4, such as Fig. 3
(c), at this point, the beam angle of the LED light is big beam angle.Change the position of lamp plate, Jin Ergai by the shaft in adjustment structure
Become irradiation ratio of the light of LED light source outgoing on major-minor reflector, achieve the purpose that control LED light beam angle.
Fig. 4 (a) is a kind of light distribution curve of the LED light one embodiment at variable beam angle of the present invention, and Fig. 4 (b) is this
A kind of light distribution curve of another embodiment of the LED light at variable beam angle is invented, with reference to Fig. 4 (a) and Fig. 4 (b), 1 table in figure
Show the light intensity of subreflector reflected light and beam angle graph of relation, 2 light intensity and light beam for representing main reflector reflected lights in figure
Angular dependence curve graph, by rotating the shaft on lamp plate so that LED light source changes the projection side of LED light source light with rotation
To passing through main reflector and the secondary light-distribution of subreflector so that entire LED light beam angle is from low-angle (Fig. 4 (a)) to big angle
It is arbitrarily adjusted between degree (Fig. 4 (b)).
A kind of LED light at variable beam angle is changed the projecting direction of LED light source light by adjustment structure, passes through outgoing
Face secondary light-distribution changes the beam angle of LED light, so as to adjust spot size, improves the utilization rate of light.Light is replaced with the prior art
Accessory change beam angle is learned to compare, it is more convenient.
It is that the preferable of the present invention is implemented to be illustrated, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations under the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of LED light at variable beam angle, which is characterized in that it includes lamp plate, LED light source, adjustment structure and by least two
The exit facet that a reflector is formed, the exit facet are located at the top of the LED light source, are penetrated for reflecting the LED light source
The light gone out, the exit facet are free form surface, and the LED light source is fixed on the lamp plate, the adjustment structure with it is described
Lamp plate is fixedly connected, for changing the projecting direction of LED light source light.
2. the LED light at a kind of variable beam angle according to claim 1, which is characterized in that the reflector includes main anti-
The position of emitter and at least one subreflector, the position of the main reflector and the subreflector causes the LED light source
The light of injection can reflect the light for projecting or causing the LED light source to project via described secondary anti-by the main reflector
Emitter projects again after reflexing to the main reflector, and the main reflector and the subreflector are free-form surface reflector.
3. the LED light at a kind of variable beam angle according to claim 2, which is characterized in that the adjustment structure includes turning
Axis, one end of the shaft are fixedly connected with the lamp plate, and when the shaft rotates, the shaft drives lamp plate rotation, changes
Become the projecting direction of the LED light source light, change the light ratio projected on the main reflector and the subreflector,
And then change the beam angle of LED light.
4. the LED light at a kind of variable beam angle according to claim 3, which is characterized in that the adjustment structure further includes
Sliding groove, the other end of the shaft are located in the sliding groove, and the shaft can be along the relatively described reflector of the sliding groove
It moves horizontally or vertical direction moves, the lamp plate is driven to move, changes the focal length of the main reflector and the pair
The focal length of reflector, and then change the beam angle of LED light.
5. the LED light at a kind of variable beam angle according to claim 4, which is characterized in that the sliding groove is L-shaped.
A kind of 6. LED light at variable beam angle according to claim 2, which is characterized in that the main reflector and described
Subreflector is seamlessly connected, and the reflector is in dome-shaped.
7. the LED light at a kind of variable beam angle according to claim 3, which is characterized in that the shaft is located at the lamp
The middle part of plate is fixedly connected with the lamp plate.
8. the LED light at a kind of variable beam angle according to claim 3, which is characterized in that the shaft is located at the lamp
Plate is fixedly connected close to one end of the main reflector with the lamp plate.
9. the LED light at a kind of variable beam angle according to claim 3, which is characterized in that the shaft is located at the lamp
Plate is fixedly connected close to one end of the subreflector with the lamp plate.
10. the LED light at a kind of variable beam angle according to claim 3, which is characterized in that the shaft is located at the lamp
The either above or below of plate is fixedly connected with the lamp plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162804.XA CN108224249B (en) | 2018-02-26 | 2018-02-26 | LED lamp with variable beam angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162804.XA CN108224249B (en) | 2018-02-26 | 2018-02-26 | LED lamp with variable beam angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108224249A true CN108224249A (en) | 2018-06-29 |
| CN108224249B CN108224249B (en) | 2024-03-29 |
Family
ID=62662283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810162804.XA Active CN108224249B (en) | 2018-02-26 | 2018-02-26 | LED lamp with variable beam angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108224249B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594701A (en) * | 2019-10-18 | 2019-12-20 | 韦立 | Medical reflective cup |
| CN112954846A (en) * | 2021-02-09 | 2021-06-11 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
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| CN207990339U (en) * | 2018-02-26 | 2018-10-19 | 深圳民爆光电技术有限公司 | A kind of LED light of variable-angle |
-
2018
- 2018-02-26 CN CN201810162804.XA patent/CN108224249B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556481Y (en) * | 2002-03-12 | 2003-06-18 | 谭维琦 | Subreflector adjustable road lamp |
| CN201561302U (en) * | 2009-09-21 | 2010-08-25 | 廖明珠 | Light source module and bicycle lamp |
| CN201547672U (en) * | 2009-10-26 | 2010-08-11 | 明达实业(厦门)有限公司 | Optical structure for lampshade of yard lamp |
| CN101907244A (en) * | 2010-07-16 | 2010-12-08 | 华南师范大学 | Multi-functional desk lamp |
| CN102563488A (en) * | 2010-12-14 | 2012-07-11 | 株式会社小糸制作所 | Vehicle lamp |
| CN103256542A (en) * | 2012-02-21 | 2013-08-21 | 三营超精密光电(晋城)有限公司 | Light module of headlight |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594701A (en) * | 2019-10-18 | 2019-12-20 | 韦立 | Medical reflective cup |
| CN112954846A (en) * | 2021-02-09 | 2021-06-11 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
| CN112954846B (en) * | 2021-02-09 | 2021-10-15 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108224249B (en) | 2024-03-29 |
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Address after: 518000 Second, Third, Fourth and Fifth Floors of Runheng Industrial Plant, Fuyong Street, Baoan District, Shenzhen City, Guangdong Province (West Side of Fuyuan Road) Applicant after: Shenzhen Civil Explosion Photoelectric Co.,Ltd. Address before: 518000 Second, Third, Fourth and Fifth Floors of Runheng Industrial Plant, Fuyong Street, Baoan District, Shenzhen City, Guangdong Province (West Side of Fuyuan Road) Applicant before: UP-SHINE LIGHTING Co.,Ltd. |
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