CN104930379B - Lamp with variable focal lengths - Google Patents
Lamp with variable focal lengths Download PDFInfo
- Publication number
- CN104930379B CN104930379B CN201510360434.7A CN201510360434A CN104930379B CN 104930379 B CN104930379 B CN 104930379B CN 201510360434 A CN201510360434 A CN 201510360434A CN 104930379 B CN104930379 B CN 104930379B
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- CN
- China
- Prior art keywords
- cob
- lamp
- lens
- lamps
- light
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- 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.)
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Classifications
-
- 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
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention discloses an electronic zooming device for an LED lamp, and particularly relates to a lamp with the variable focal lengths. The lamp comprises a power module, a COB driving module, a COB lamp with at least two circles of annular structures and a lens arranged on one side of a light-emitting plane of the COB lamp. The distance between the lens and the COB lamp is smaller than one focal length. An MCU controls the different circles of the COB lamp to be turned on, so that the incident angle of the COB lamp relative to a Fresnel lens is changed by changing the number of the turn-on circles of the COB lamp when the distance between the COB lamp and the lens is kept identical; therefore, variable focal lengths can be obtained by changing the cover area of light-emitting light within the same distance. According to the technical scheme, the mute LED lamp with the variable focal lengths and the all-electronic design is obtained.
Description
Technical field
The present invention relates to LED lamp, more particularly to a kind of varifocal LED.
Background technology
With the development of LED technology, LED has the excellent characteristic of many protrusions than conventional light source so that LED is in each row
The application of industry is also to rise at the sound.The LED of various functions emerges in an endless stream, and can realize that the LED of zoom function is also wherein
It is a kind of.
The LED of zoom function can be realized, its principle is to change light-emitting area and realize with Fresnel Lenses distance.But
Be existing varifocal LED be the mechanical motion mechanism that many complexity are provided with light fixture changing light-emitting area, no
Only making the structure of light fixture becomes complicated, and cost is improved, while mechanical motion mechanism also easily produces noise, control is relied on directly drives
It is dynamic.
The content of the invention
The present invention proposes a kind of varifocal light fixture, including what is be sequentially connected with to solve above-mentioned problem of the prior art
Power module, COB drive modules and the COB lamps with least two circle loop configuration, and it is arranged on COB lamp luminous flats side
Lens, and punctuate bright MCU for controlling COB lamp differences, make COB lamps with lens keep identical apart from when, pass through
Change incident angle of the COB lamps relative to Fresnel Lenses, so that emergent ray becomes in the area coverage of same distance
Change so as to realize zoom.
Said lens are less than a focal length with the distance of COB lamps, and lens adopt Fresnel Lenses.
The technical program can further include a wireless receiving module and display module, and wireless receiving module is used for
Zoom signal is received, the MCU punctuates bright according to zoom signal, the difference for controlling COB lamps.Display module is used to show in real time and becomes
Close-burning fruit.
The present invention realizes the zoom function of LED by full electronic, enormously simplify the design of light fixture, it is not necessary to
Complicated zoom frame for movement is set, and solving the existing LED of zoom on the market has the shortcomings that to run noise, realizes completely quiet
Sound, while also cause the cost of zoom LED reduce, it is maintainable higher, it is more convenient to operate.
Description of the drawings
Fig. 1 is the circuit block diagram of the present invention；
Fig. 2 is the front view of COB lamps of the present invention；
Fig. 3 is the schematic diagram of the present invention.
Specific embodiment
Below in conjunction with drawings and Examples, the structural principle of the present invention is illustrated.
As shown in Figure 1 and Figure 2, varifocal light fixture of the invention includes：The COB lamps of two circles or more loop configuration（Plate）
1st, it is the COB drive modules 3 that control using Fresnel Lenses 2 made by the transparent materials such as PE, PMMA, glass, by MCU 5, wireless
Receiver module 7, display module 6, power module 4.
Wherein, the COB lamps of the present embodiment employ 4 circles（Ring）Structure, power module 4, COB drive modules 3 and COB lamps
1 sequentially electrically connects, and Fresnel Lenses 2 is arranged on the luminous flat side of COB lamps 1, and is less than Jiao apart from D with COB lamps 1
Away from reflecting to the light that COB lamps send.
As shown in figure 3, MCU 5 is by control COB drive modules 3, so as to reach the difference that can individually control COB lamps 1
Punctuate bright effect, show in figure and light the Zoom effect that light fixture when COB lamps the 4th are enclosed was enclosed and lighted at COB lamps center one,
Due to the Fresnel Lenses 2 for having used refractive index homogeneous, in the case where the number of turns that COB lamps 1 are lit changes, can be in Fresnel
Lens opposite side forms different beam exit angles, actually causes emergent ray to become in the area coverage of same distance
Change, namely reach conventional lamp by changing the purpose of the zoom that light-emitting area is realized with Fresnel Lenses distance.
According to the computing formula of refractive index, n=sin α/sin β, n are refractive index, and α is angle of incidence, and β is the angle of emergence；When saturating
When mirror material is constant, refractive index n is constant, to change the angle of emergence（Illumination range）, only need to change incident angle α, if this
The COB light fixtures of invention have bigger light-emitting area, then have bigger incident angle, therefore need to only change what is be lit on COB lamps
The number of turns, it is possible to change incident angle, so as to reach the purpose of zoom.
Additionally, the wireless receiving module of the present invention can receive zoom signal, MCU controls COB lamps according to zoom signal
Difference punctuates bright, so as to realize the remotely control of zoom, even if illuminant arrangement is when user is difficult to the position for touching, it is also possible to
Zoom setting is conveniently carried out by wireless receiving module.And display module then can in real time show current change close-burning
Really, user is facilitated to remember.
It should be appreciated that the above-mentioned description for specific embodiment is more detailed, therefore can not be considered to this
The restriction of invention patent protection scope, the scope of patent protection of the present invention should be defined by claims.
Claims (2)
1. a kind of varifocal light fixture, including the power module, COB drive modules being sequentially connected with and with least two ring junctions are enclosed
COB lamps of structure, and be arranged on the homogeneous lens of refractive index of COB lamp luminous flats side, it is characterised in that the lens are
Fresnel Lenses, the lens are less than a focal length with the distance of COB lamps, and the COB lamps control its difference circle by a MCU
Light, make COB lamps with lens keep identical apart from when, incident angle of the COB lamps issued light relative to Fresnel Lenses
Change, so that emergent ray changes in the area coverage of same distance and realizes Real time changing focus；
Also include a wireless receiving module, for receiving zoom signal, according to zoom signal, control COB lamps are or not the MCU
It is same to punctuate bright.
2. light fixture as claimed in claim 1, it is characterised in that also including a display module, for showing in real time close-burning is become
Really.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360434.7A CN104930379B (en) | 2015-06-26 | 2015-06-26 | Lamp with variable focal lengths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360434.7A CN104930379B (en) | 2015-06-26 | 2015-06-26 | Lamp with variable focal lengths |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930379A CN104930379A (en) | 2015-09-23 |
| CN104930379B true CN104930379B (en) | 2017-05-03 |
Family
ID=54117672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510360434.7A Active CN104930379B (en) | 2015-06-26 | 2015-06-26 | Lamp with variable focal lengths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930379B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954043B (en) * | 2018-06-21 | 2019-07-02 | 上海大学 | A kind of zoom LED light |
| CN110375270B (en) * | 2019-08-20 | 2024-02-13 | 上海芯龙光电科技股份有限公司 | Optical lens module for realizing electronic zooming |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202132731U (en) * | 2011-04-28 | 2012-02-01 | 英飞特光电（杭州）有限公司 | Irradiation range adjustable LED (Light Emitting Diode) lamp |
| CN203298189U (en) * | 2013-05-15 | 2013-11-20 | 易世值 | LED light source with COB module |
| CN103597279A (en) * | 2011-06-14 | 2014-02-19 | 奥斯兰姆施尔凡尼亚公司 | Solid state light fixture with a tunable angular distribution |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2577976C (en) * | 2006-02-10 | 2014-11-04 | The Flewelling Ford Family Trust | Light emitting and receiving device |
| US9416938B2 (en) * | 2012-06-06 | 2016-08-16 | Coast Cutlery Co. | Integrated optic and bezel for flashlight |
-
2015
- 2015-06-26 CN CN201510360434.7A patent/CN104930379B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202132731U (en) * | 2011-04-28 | 2012-02-01 | 英飞特光电（杭州）有限公司 | Irradiation range adjustable LED (Light Emitting Diode) lamp |
| CN103597279A (en) * | 2011-06-14 | 2014-02-19 | 奥斯兰姆施尔凡尼亚公司 | Solid state light fixture with a tunable angular distribution |
| CN203298189U (en) * | 2013-05-15 | 2013-11-20 | 易世值 | LED light source with COB module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930379A (en) | 2015-09-23 |
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Address after: 518000 Longping Community Department, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Jiuwo Longjun Industrial Zone, Building 21, 2nd to 4th floors (one photo multi site enterprise) Patentee after: Shenzhen Aitushi Innovation Technology Co.,Ltd. Address before: Floor 4, Building 9, Longjun Industrial Zone, Jiuwo, Longhua Heping Road, Shenzhen, Guangdong 518000 Patentee before: APUTURE IMAGING INDUSTRIES Co.,Ltd. |
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| CP03 | Change of name, title or address |