CN2593228Y - Planar upper light source - Google Patents
Planar upper light source Download PDFInfo
- Publication number
- CN2593228Y CN2593228Y CN 02291366 CN02291366U CN2593228Y CN 2593228 Y CN2593228 Y CN 2593228Y CN 02291366 CN02291366 CN 02291366 CN 02291366 U CN02291366 U CN 02291366U CN 2593228 Y CN2593228 Y CN 2593228Y
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- plane
- guide plate
- light guide
- 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.)
- Expired - Lifetime
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- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a planar upper light source, which is mainly used for planar illumination. The planar upper light source comprises a uniform light source projecting towards a fixed direction, a light conducting plate with high light transmittance, a light-reflecting film layer at the side edge of the light conducting plate, wherein, the front face of the light conducting plate is provided with concave and convex grooves or points arranged in a row mode. The uniform light source projecting towards a fixed direction is composed of light sources (such as LED luminous chips and incandescent lamps) and a transparent reflecting plate; the light sources are arranged on two end faces of the reflecting plate; the long side face of the reflecting plate is processed with concave and convex grooves or points arranged in a row mode. The uniform light source projecting towards a fixed direction can also be composed of a cold-cathode fluorescent tube, and is arranged at one side of the light conducting plate; the light emission face of the uniform light source projecting towards a fixed direction is engaged with the side face of the light conducting plate. The planar upper light source illuminates from the front face of a plane, and has high light efficiency and no glare.
Description
Technical field
The utility model relates to a kind of light source, and referring in particular to a kind ofly can provide illumination for the plane from the front on plane, is not subjected to source stimulating when making people see object, has played the effect of protection eyes.
Background technology
LCDs is not because itself is luminous, needs light illumination when night or other dark place use.The backlight technology is adopted in the illumination of known LCDs, and this technology can cause non-uniform light, though the problems referred to above around the existence of backlight technology, people develop the side backlight technology that adopts light guide plate, this side backlight technology is because light sees through the LCDs ejaculation, can think that when people see display screen light is dazzling, and this technology optical efficiency is low.
The utility model content
The problems referred to above at existing backlight technology existence, the purpose of this utility model is to provide on a kind of plane puts light source, this light source is a kind of efficient, even, soft not dazzling front light source of light, not only can be used as the illumination of LCDs, also can be used for the illumination of clock and watch, small-sized advertising show window etc.
To achieve these goals, the utility model adopts following technology: put light source on the plane and comprise the equal radiant of directed projection and the light guide plate of high transmission rate, light guide plate be placed on desire illumination object plane above, the equal radiant of directed projection is positioned at the side of light guide plate, the exiting surface of the equal radiant of directed projection engages with light guide plate, and the light guide plate upper surface is a male and fomale(M﹠F).
The male and fomale(M﹠F) of described light guide plate upper surface can be tongue and groove or the point that has the row shape to arrange in the above, and the width of tongue and groove or point is 0.01mm to 10mm, spacing 0.1mm to 50mm.Reflected downwards at the upper surface place so that orientation is throwed the light of equal radiant, and make the extraneous light above the light guide plate can see through light guide plate, in bright environment, to illuminate the surface for the treatment of illuminated objects with extraneous light.
The equal radiant of described directed projection can be made up of light source and reflecting plate that LED luminescence chip or incandescent lamp constitute, and reflecting plate is a transparent light guide body, and tongue and groove or point are arranged on the long side surface of light conductor, and light source is installed in the two ends of reflecting plate.The light of light source evenly shines to the light guide plate side from exiting surface behind baffle reflection.
The equal radiant of described directed projection also can be made up of the minute surface reflector of cold cathode fluorescent tube and arc surfaced.
Described directed projection source also can directly be made of the cold cathode fluorescent tube.
Described light guide plate can be the leaded light film.
In four sides of described light guide plate, except that the side of advancing light, reflective membrane is posted in other side, in order to avoid light leaks, has improved the efficient of light.
Described light guide plate can be plane or wedge shape.
The area of putting light source on described is 100mm
2To 900000mm
2, thickness is that 0.6mm is to 30mm.
Put light source on this plane, in use light guide plate is placed in upper surfaces such as the object plane that needs illumination such as LCDs, billboard, clock and watch, because tongue and groove above the light guide plate or point are very shallow, bright to making whole light guide plate be similar to full impregnated, as shown in Figure 4, when external environment is very bright, light source does not work, because it is very high to put light guide plate 2 transparencies of light source on the plane, extraneous light shines on the object plane 9 through light guide plate 2, the equal radiant 1 of directed projection is not luminous, and put light source this moment on this plane little to the influence that the plane shows; In the environment of dark, the sharpness that the plane shows descends, putting light source on the plane can be light as secondary light source, as shown in Figure 5, orientation in the luminous component is throwed equal radiant 1 light guide plate 2 is gone in the directed projection of the light of light source, the object plane 9 under the light source is put in the anaclasis that the tongue and groove in light guide plate front or name a person for a particular job is injected luminous component to the plane, 9 reflect back through the plane again, because it is very high to put light guide plate 2 transparencies of light source on the plane, the light that reflects back directly sees through light guide plate 2 and enters people's eyes, reaches the effect of illumination.So put light source on this plane as a positive facial plane irradiation system; the plane that no matter need throw light on is in the still dark environment of bright environment; can not influence the sharpness of essence object; make people can see object clearly; and the light of light source can be not dazzling; not only light is even, the efficient height, and can protect people's eyes again.
Description of drawings
Fig. 1 is for putting the structural drawing of light source on the plane among the utility model embodiment 1;
Fig. 2 throws the structural drawing of equal radiant for the orientation of putting light source on the plane shown in Figure 1;
Fig. 3 throws the structural drawing of equal radiant for the orientation of putting light source on the plane of the utility model embodiment 2;
Fig. 4 puts the fundamental diagram of light source in bright light environments on the plane of the present utility model;
Fig. 5 puts the fundamental diagram of light source in dark environment on the plane of the present utility model.
Embodiment
Be described further putting light source on the plane of the present utility model below in conjunction with the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, put on the plane shown in the figure in a kind of structure of light source, comprise an equal radiant 1 of directed projection, the equal radiant 1 of directed projection is positioned at the side of a light guide plate 2, the exiting surface of the equal radiant of directed projection and the engage sides of light guide plate.Throwing equal radiant 1 two ends in orientation is illuminating source 3, in three sides in addition of light guide plate reflexed light film 4 is arranged, in order to avoid light spills from the side.The light guide plate upper surface is arranged with many parallel grooves, changes direction so that inject the light guide plate light parallel with light guide plate, and direct projection downwards is to following object plane.As shown in Figure 2, the equal radiant of directed projection has a transparent light guide body reflecting plate 5, the reflecting plate side is processed with the tongue and groove 6 that the row shape is arranged, LED luminescence chip light source 3 is positioned at the two ends of reflecting plate 5, the light of light source 3 is through tongue and groove 6 reflections of reflecting plate 5 sides, the opposite that the light that light source is injected is invested tongue and groove 6 equably.
As shown in Figure 3, it is light source with a cold cathode fluorescent tube 7 that orientation in this example is throwed equal radiant, reflecting plate is the arc minute surface reflector 8 that a cross sectional shape is the U type, the light that the cold cathode fluorescent tube sends is through 8 reflections of minute surface reflector, invest the opposite of minute surface reflector 8, with the parallel light guide plate of injecting.Identical among the syndeton of the reflexed light film of light guide plate, light guide plate side and the equal radiant of directed projection and light guide plate and the embodiment 1.
Claims (9)
1, a kind of evenly, put light source on the plane efficiently, the light guide plate that comprises sidelight source and high transmission rate, it is characterized in that: described sidelight source is the equal radiant of directed projection, the equal radiant of directed projection is positioned at the side of the light guide plate of a high transmission rate above the object plane that is placed on the desire illumination, the exiting surface of the equal radiant of directed projection engages with light guide plate, and the light guide plate upper surface is a male and fomale(M﹠F).
2, put light source on the plane as claimed in claim 1, it is characterized in that: tongue and groove or the point of the male and fomale(M﹠F) of described light guide plate upper surface for having the row shape to arrange in the above, the width of tongue and groove or point is 0.01mm to 10mm, spacing 0.1mm to 50mm.
3, put light source on the plane as claimed in claim 1, it is characterized in that: the equal radiant of described directed projection is formed for the light source and the reflecting plate that are made of LED luminescence chip, incandescent lamp, reflecting plate is a transparent light guide body, light conductor 1 long tongue and groove or the point that has the row shape to arrange on the side, light source is installed in the two ends of reflecting plate.
4, put light source on the plane as claimed in claim 1, it is characterized in that: the equal radiant of described directed projection is made up of the minute surface reflector of cold cathode fluorescent tube and arc surfaced.
5, put light source on the plane as claimed in claim 1, it is characterized in that: the equal radiant of described directed projection is the cold cathode fluorescent tube.
6, put light source on the plane as claimed in claim 1, it is characterized in that: described light guide plate is the leaded light film.
7, put light source on the plane as claimed in claim 1, it is characterized in that: in four sides of described light guide plate, except that the side of advancing light, reflective membrane is posted in other side.
8, put light source on the plane as claimed in claim 1, it is characterized in that: described light guide plate is plane or wedge shape.
9, put light source on the plane as claimed in claim 1, it is characterized in that: the area of putting light source on described is 100mm
2To 900000mm
2, thickness is that 0.6mm is to 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291366 CN2593228Y (en) | 2002-12-19 | 2002-12-19 | Planar upper light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291366 CN2593228Y (en) | 2002-12-19 | 2002-12-19 | Planar upper light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593228Y true CN2593228Y (en) | 2003-12-17 |
Family
ID=33750221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02291366 Expired - Lifetime CN2593228Y (en) | 2002-12-19 | 2002-12-19 | Planar upper light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593228Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420915C (en) * | 2004-11-29 | 2008-09-24 | De&T株式会社 | Light source for plane display screen detector |
| CN101968186A (en) * | 2010-07-30 | 2011-02-09 | 南京中电熊猫液晶显示科技有限公司 | Large luminous angle LED backlight source module |
| CN102122012A (en) * | 2011-02-23 | 2011-07-13 | 江苏金来顺光电科技有限公司 | Light guide plate for improving light emitting efficiency |
| CN102200232A (en) * | 2011-06-14 | 2011-09-28 | 周玉龙 | Anti-glare light-emitting diode (LED) lamp tube |
| CN101285567B (en) * | 2007-04-09 | 2012-04-18 | 西铁城电子股份有限公司 | Optical member and lighting device having the same |
| CN101832517B (en) * | 2009-03-13 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Back light module |
| CN102257314B (en) * | 2008-12-25 | 2014-11-05 | 三菱丽阳株式会社 | Light guide for light source device and method for manufacturing the same |
| CN105068313A (en) * | 2015-08-06 | 2015-11-18 | 北京工业大学 | Blue-ray LD backlight module and display device |
-
2002
- 2002-12-19 CN CN 02291366 patent/CN2593228Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420915C (en) * | 2004-11-29 | 2008-09-24 | De&T株式会社 | Light source for plane display screen detector |
| CN101285567B (en) * | 2007-04-09 | 2012-04-18 | 西铁城电子股份有限公司 | Optical member and lighting device having the same |
| CN102257314B (en) * | 2008-12-25 | 2014-11-05 | 三菱丽阳株式会社 | Light guide for light source device and method for manufacturing the same |
| CN101832517B (en) * | 2009-03-13 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Back light module |
| CN101968186A (en) * | 2010-07-30 | 2011-02-09 | 南京中电熊猫液晶显示科技有限公司 | Large luminous angle LED backlight source module |
| CN102122012A (en) * | 2011-02-23 | 2011-07-13 | 江苏金来顺光电科技有限公司 | Light guide plate for improving light emitting efficiency |
| CN102200232A (en) * | 2011-06-14 | 2011-09-28 | 周玉龙 | Anti-glare light-emitting diode (LED) lamp tube |
| CN105068313A (en) * | 2015-08-06 | 2015-11-18 | 北京工业大学 | Blue-ray LD backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEIZHI INTELLIGENT LTD. Free format text: FORMER OWNER: YAO ZHITU Effective date: 20070601 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070601 Address after: The British Virgin Islands of Tortola Luther Wenham town 1 De Castro Road No. 24 building Accra Island Patentee after: Wezhi Intelligent Ltd Address before: 518000 Guangdong city of Shenzhen province Baoan District Xixiang Town Industrial Zone second Patentee before: Yao Zhitu |
|
| ASS | Succession or assignment of patent right |
Owner name: WAI CHI OPTOELECTRONIC (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: WAI CHI INTELLIGENT CO., LTD. Effective date: 20120214 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; TO: 518126 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120214 Address after: 518126 Guangdong city of Shenzhen province Baoan District Xixiang Town Industrial Zone second Patentee after: Waichi Opto Technology (Shenzhen) Ltd. Address before: The British Virgin Islands, Tortola, Luther Wenham Town, 1 islands, 24 De Castro Road, building Accra Patentee before: Wezhi Intelligent Ltd |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN WAI CHI OPTO TECHNOLOGY LTD. Free format text: FORMER NAME: WAI CHI OPTO TECHNOLOGY (SHENZHEN) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518126 Guangdong city of Shenzhen province Baoan District Xixiang Town Industrial Zone second Patentee after: Shenzhen Waichi Photoelectric Co., Ltd. Address before: 518126 Guangdong city of Shenzhen province Baoan District Xixiang Town Industrial Zone second Patentee before: Waichi Opto Technology (Shenzhen) Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121219 Granted publication date: 20031217 |