CN105546362B - LED optical system for forming uniform square light spots - Google Patents
LED optical system for forming uniform square light spots Download PDFInfo
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- CN105546362B CN105546362B CN201610054611.3A CN201610054611A CN105546362B CN 105546362 B CN105546362 B CN 105546362B CN 201610054611 A CN201610054611 A CN 201610054611A CN 105546362 B CN105546362 B CN 105546362B
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- device body
- led light
- optical device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
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- 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
Abstract
The invention belongs to the technical field of ultraviolet curing and discloses an LED optical system for forming uniform square light spots, which comprises an optical device body, wherein the optical device body comprises a trapezoidal reflector, LED light sources, a receiver and a display area, the optical device body is a square array formed by arranging a plurality of LED light sources at uniform intervals, the LED light sources of the square array are surrounded by four trapezoidal reflectors, the square receiver is arranged at a position 60mm below the optical device body, and the top of the receiver is provided with the display area for displaying the uniformity of irradiance. The invention has simple structure, is easy to realize in process, and greatly reduces the research and development and production periods; the price is also cheap; the uniformity of the light spots is high.
Description
Technical Field
The invention relates to an LED optical system, in particular to an LED optical system for forming uniform square light spots, and belongs to the technical field of ultraviolet curing.
Background
The method for forming uniform rectangular light spots by using an optical system in the market is many, and the method can be roughly divided into the following types according to different application requirements: 1) the uniformity of rectangular light spots is required to be extremely high, the projection distance of the light spots is long and can be beyond 2 meters, so that the light emitted by the LED light source is mixed and condensed to form uniform rectangular light spots by applying a complex optical system through multiple refraction and reflection, the method is mainly used for projector optical systems, the optical efficiency is low, the requirements on the light source and optical devices are high, and the requirements on production processes are high; 2) the required optical efficiency is higher, the projection distance is not far and is mostly within 0.5 m, so that each LED is provided with a lens or a reflecting cup by utilizing simple secondary optical design to collect all light rays of a light source within a rectangular light spot, and the geometric shape of an optical interface of an optical device is designed according to the irradiation distance to form a uniform rectangular light spot, the scheme is mainly used for an ultraviolet curing process on a product assembly line, relatively speaking, the process of the optical system is still somewhat complex, and the price is also somewhat high; 3) the optical system is needed to be simpler and cheaper in price, so that a plurality of LED point light sources can be directly arranged into a square array and then directly irradiated onto a irradiated surface, the projection distance of light spots is very short and is within about 50 mm, the scheme is mainly used for an ultraviolet curing system on an automatic printing machine in the printing industry, and the uniformity of the light spots is slightly poor.
Disclosure of Invention
The technical problem to be solved by the invention is overcome, and the LED optical system for forming uniform square light spots is provided, has a simple structure, is easy to realize in process, and greatly reduces the research, development and production periods; the price is also cheap; the uniformity of the light spots is high, and the problems in the background technology can be effectively solved.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides an LED optical system for forming uniform square light spots, which comprises an optical device body, wherein the optical device body comprises a trapezoidal reflector, LED light sources, a receiver and a display area, the optical device body is a square array formed by arranging a plurality of LED light sources at uniform intervals, the LED light sources of the square array are surrounded by four trapezoidal reflectors, the square receiver is arranged at a position 60mm below the optical device body, and the display area for displaying the uniformity of irradiance is arranged at the top of the receiver.
As a preferable technical scheme of the invention, the distribution of the quantity of the LED light source particles is adjusted according to the irradiance distribution, and the irradiance distribution is sufficiently uniform by adjusting the quantity of the LED light source particles to change.
As a preferable technical solution of the present invention, the LED light source has a light-emitting angle of 80 °.
The invention has the following beneficial effects: an LED optical system for forming uniform square light spots has a simple structure, is easy to realize in process, and greatly reduces the research, development and production periods; the price is also cheap; the uniformity of the light spots is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of an overall structure of an LED optical system for forming uniform square light spots according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an LED optical system with a uniform square light spot according to an embodiment of the present invention after the number of LED light source particles is changed;
reference numbers in the figures: 1. an optical device body; 2. a trapezoidal reflective sheet; 3. an LED light source; 4. a receiver; 5. a display area.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): referring to fig. 1-2, the LED optical system for forming uniform square light spots of the present invention includes an optical device body 1, wherein the optical device body 1 includes a trapezoidal reflector 2, LED light sources 3, a receiver 4 and a display area 5, the optical device body 1 is a square array formed by a plurality of LED light sources 3 arranged at uniform intervals, the square array of LED light sources 3 is surrounded by four trapezoidal reflectors 2, a square receiver 4 is arranged at a position 60mm below the optical device body 1, and the top of the receiver 4 is provided with the display area 5 for displaying irradiance uniformity.
The distribution of the number of the LED light source 3 particles is adjusted according to the irradiance distribution, the irradiance distribution is changed to be uniform enough by adjusting the number of the LED light source 3 particles, the light-emitting angle of the LED light source 3 is 80 degrees, the structure is simple, the process is easy to realize, and the research, development and production periods are greatly reduced; the price is also cheap; the uniformity of the light spots is high.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (1)
1. An LED optical system for forming uniform square light spots comprises an optical device body (1), and is characterized in that the optical device body (1) comprises trapezoid reflectors (2), LED light sources (3), receivers (4) and a display area (5), the optical device body (1) is a square array formed by arranging a plurality of LED light sources (3) at uniform intervals, four trapezoid reflectors (2) are used for surrounding the square array of LED light sources (3), a square receiver (4) is arranged at a position 60mm below the optical device body (1), and the top of the receiver (4) is provided with the display area (5) for displaying irradiance uniformity;
the distribution of the number of particles of the LED light source (3) is adjusted according to the irradiance distribution, and the irradiance distribution is changed to be uniform enough by adjusting the number of particles of the LED light source (3); the light-emitting angle of the LED light source (3) is 80 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054611.3A CN105546362B (en) | 2016-01-27 | 2016-01-27 | LED optical system for forming uniform square light spots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054611.3A CN105546362B (en) | 2016-01-27 | 2016-01-27 | LED optical system for forming uniform square light spots |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546362A CN105546362A (en) | 2016-05-04 |
| CN105546362B true CN105546362B (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610054611.3A Active CN105546362B (en) | 2016-01-27 | 2016-01-27 | LED optical system for forming uniform square light spots |
Country Status (1)
| Country | Link |
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| CN (1) | CN105546362B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0797045A1 (en) * | 1993-02-01 | 1997-09-24 | Tosoh Corporation | Backlighting device |
| CN2802897Y (en) * | 2005-05-27 | 2006-08-02 | 大连海事大学 | Lighting system based on large power ultraviolet ray LED array |
| CN201034271Y (en) * | 2007-01-19 | 2008-03-12 | 北京高科能光电技术有限公司 | Single-faced lamp box employing LED illuminating source |
| CN101706065A (en) * | 2009-11-27 | 2010-05-12 | 徐志平 | UV LED area source for offset printing press and manufacturing method thereof |
| CN104108182A (en) * | 2014-07-14 | 2014-10-22 | 上海交通大学 | Photo-curing 3D forming system adopting LED array micro-projection light source |
| CN104280709A (en) * | 2013-07-12 | 2015-01-14 | 应用材料意大利有限公司 | System and method for calibrating a light source for simulating a spectrum of solar radiation |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220656A (en) * | 2000-11-22 | 2002-08-09 | Sanyo Electric Co Ltd | Mask for vapor deposition and manufacturing method therefor |
| CN101514804A (en) * | 2008-02-22 | 2009-08-26 | 红蝶科技(深圳)有限公司 | Multi-chip encapsulated LED light source and liquid crystal projection apparatus |
| CN201206781Y (en) * | 2008-03-11 | 2009-03-11 | 保定市大正太阳能光电设备制造有限公司 | LED lamp with reflection cup |
| CN201209814Y (en) * | 2008-04-07 | 2009-03-18 | 保定市大正太阳能光电设备制造有限公司 | LED multi-connection reflection cup |
| RU2500951C2 (en) * | 2009-07-09 | 2013-12-10 | Шарп Кабусики Кайся | Lighting unit, display device and tv receiver |
| TWI562695B (en) * | 2012-12-24 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Method for regulating lighting emitting module |
| CN203557830U (en) * | 2013-11-20 | 2014-04-23 | 北京慧眼智行科技有限公司 | Solidification optical system and printing device |
| CN104084368B (en) * | 2014-07-23 | 2015-10-07 | 深圳市华星光电技术有限公司 | The cure package apparatus and method of ultraviolet LED light source and OLED |
| CN205480219U (en) * | 2016-01-27 | 2016-08-17 | 依瓦塔(上海)精密光电有限公司 | Form LED optical system of even square facula |
-
2016
- 2016-01-27 CN CN201610054611.3A patent/CN105546362B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0797045A1 (en) * | 1993-02-01 | 1997-09-24 | Tosoh Corporation | Backlighting device |
| CN2802897Y (en) * | 2005-05-27 | 2006-08-02 | 大连海事大学 | Lighting system based on large power ultraviolet ray LED array |
| CN201034271Y (en) * | 2007-01-19 | 2008-03-12 | 北京高科能光电技术有限公司 | Single-faced lamp box employing LED illuminating source |
| CN101706065A (en) * | 2009-11-27 | 2010-05-12 | 徐志平 | UV LED area source for offset printing press and manufacturing method thereof |
| CN104280709A (en) * | 2013-07-12 | 2015-01-14 | 应用材料意大利有限公司 | System and method for calibrating a light source for simulating a spectrum of solar radiation |
| CN104108182A (en) * | 2014-07-14 | 2014-10-22 | 上海交通大学 | Photo-curing 3D forming system adopting LED array micro-projection light source |
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| CN105546362A (en) | 2016-05-04 |
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Effective date of registration: 20201013 Address after: No. 126, Longmen Road, economic and Technological Development Zone, Shangrao City, Jiangxi Province Applicant after: Jiangxi yiwata Photoelectric Technology Co., Ltd Address before: 201604 Shanghai Songjiang District Shihudang town min road A District No. 20 Lane 558 Applicant before: UVATA (SHANGHAI) PRECISION OPTOELECTRONICS Co.,Ltd. |
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