JPH0369184U - - Google Patents
Info
- Publication number
- JPH0369184U JPH0369184U JP13101089U JP13101089U JPH0369184U JP H0369184 U JPH0369184 U JP H0369184U JP 13101089 U JP13101089 U JP 13101089U JP 13101089 U JP13101089 U JP 13101089U JP H0369184 U JPH0369184 U JP H0369184U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- light
- source device
- diffusing
- section
- 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
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 3
Description
第１図は本考案の第１の実施例の断面図、第２
図は本考案の第２の実施例の断面図、第３図は従
来の面光源装置の断面図である。
１……光源、２……導光体、３……拡散部、４
……反射面、５……第１拡散面、６……第２拡散
面。
Fig. 1 is a sectional view of the first embodiment of the present invention;
The figure is a sectional view of a second embodiment of the present invention, and FIG. 3 is a sectional view of a conventional surface light source device. 1... Light source, 2... Light guide, 3... Diffusion part, 4
...Reflection surface, 5...First diffusion surface, 6...Second diffusion surface.
Claims (1)
光体表面に設けた光拡散部と、導光体裏面に設け
た反射面とを備えた面光源装置において、前記光
拡散部が空気層を挟んで配置した二つの拡散面よ
りなることを特徴とする面光源装置。 (2) 前記光拡散部が拡散面と表面が断面形状鋸
歯状をなした透明板よりなる請求項(1)の面光源
装置。 (3) 前記導光体の屈折率ｎがｎ≦１．４５の透
明樹脂よりなる請求項(1)又は(2)の面光源装置。[Claims for Utility Model Registration] (1) A surface light source device comprising a light source, a light diffusing section provided on the surface of a light guide whose incident end face is placed close to the light source, and a reflective surface provided on the back surface of the light guide. A surface light source device characterized in that the light diffusing section is made up of two diffusing surfaces arranged with an air layer in between. (2) The surface light source device according to claim 1, wherein the light diffusing section is made of a transparent plate having a diffusing surface and a surface having a sawtooth cross-section. (3) The surface light source device according to claim (1) or (2), wherein the light guide is made of a transparent resin with a refractive index n≦1.45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989131010U JP2507092Y2 (en) | 1989-11-13 | 1989-11-13 | Surface light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989131010U JP2507092Y2 (en) | 1989-11-13 | 1989-11-13 | Surface light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369184U true JPH0369184U (en) | 1991-07-09 |
| JP2507092Y2 JP2507092Y2 (en) | 1996-08-14 |
Family
ID=31678539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989131010U Expired - Lifetime JP2507092Y2 (en) | 1989-11-13 | 1989-11-13 | Surface light source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507092Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203950A (en) * | 1992-01-27 | 1993-08-13 | Sekisui Chem Co Ltd | Condenser sheet and panel light emitting device |
| US6799859B1 (en) | 2000-07-24 | 2004-10-05 | Mitsubishi Rayon Co., Ltd. | Surface illuminant device and prism sheet used therefor |
| JP2006179475A (en) * | 2004-11-24 | 2006-07-06 | Toshiba Matsushita Display Technology Co Ltd | Surface light source device and liquid crystal display device provided with the same |
| WO2007129415A1 (en) | 2006-05-08 | 2007-11-15 | Sony Corporation | Optical film, process for producing the same and display apparatus |
| JP2008231857A (en) * | 2007-03-23 | 2008-10-02 | Okumura Corp | Demolition equipment for tower-like structure |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51102498A (en) * | 1975-03-06 | 1976-09-09 | Suwa Seikosha Kk | EKISHOHYOJISOCHI |
| JPS5276291U (en) * | 1975-12-05 | 1977-06-07 | ||
| JPS52109393A (en) * | 1976-03-10 | 1977-09-13 | Hitachi Ltd | Liquid crystal display element |
| JPS52141598A (en) * | 1976-04-29 | 1977-11-25 | Ebauches Sa | Passive optooelectric display unit and method of producing same |
| JPS5525641A (en) * | 1978-08-11 | 1980-02-23 | Mitsubishi Heavy Ind Ltd | Dredger |
| JPS5637124A (en) * | 1979-09-04 | 1981-04-10 | Mitsubishi Rayon Co Ltd | Production of synthetic resin light diffusing sheet |
| JPS5669433U (en) * | 1979-10-31 | 1981-06-09 | ||
| JPS5823631A (en) * | 1982-07-08 | 1983-02-12 | Green Cross Corp:The | Preparation of stabilized solid preparation of human serum choline esterase |
| US4729067A (en) * | 1986-09-26 | 1988-03-01 | Mitsubishi Rayon Company Ltd. | Light diffusing device |
| JPS63239702A (en) * | 1987-03-27 | 1988-10-05 | 株式会社小糸製作所 | Lens lighting apparatus for decoration |
| JPS63318003A (en) * | 1987-05-26 | 1988-12-26 | ミネソタ マイニング アンド マニユフアクチユアリング カンパニー | Lighting equipment outputting normalized light |
| JPS6437801A (en) * | 1987-08-04 | 1989-02-08 | Matsushita Electric Ind Co Ltd | Voltage nonlinear element |
| JPH01234821A (en) * | 1988-03-16 | 1989-09-20 | Hitachi Ltd | Liquid crystal display device |
| JPH01241590A (en) * | 1988-03-23 | 1989-09-26 | Fujitsu Ltd | Surface lighting device |
| JPH0284618A (en) * | 1988-06-02 | 1990-03-26 | Mitsubishi Rayon Co Ltd | Panel light source element |
-
1989
- 1989-11-13 JP JP1989131010U patent/JP2507092Y2/en not_active Expired - Lifetime
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51102498A (en) * | 1975-03-06 | 1976-09-09 | Suwa Seikosha Kk | EKISHOHYOJISOCHI |
| JPS5276291U (en) * | 1975-12-05 | 1977-06-07 | ||
| JPS52109393A (en) * | 1976-03-10 | 1977-09-13 | Hitachi Ltd | Liquid crystal display element |
| JPS52141598A (en) * | 1976-04-29 | 1977-11-25 | Ebauches Sa | Passive optooelectric display unit and method of producing same |
| JPS5525641A (en) * | 1978-08-11 | 1980-02-23 | Mitsubishi Heavy Ind Ltd | Dredger |
| JPS5637124A (en) * | 1979-09-04 | 1981-04-10 | Mitsubishi Rayon Co Ltd | Production of synthetic resin light diffusing sheet |
| JPS5669433U (en) * | 1979-10-31 | 1981-06-09 | ||
| JPS5823631A (en) * | 1982-07-08 | 1983-02-12 | Green Cross Corp:The | Preparation of stabilized solid preparation of human serum choline esterase |
| US4729067A (en) * | 1986-09-26 | 1988-03-01 | Mitsubishi Rayon Company Ltd. | Light diffusing device |
| JPS63239702A (en) * | 1987-03-27 | 1988-10-05 | 株式会社小糸製作所 | Lens lighting apparatus for decoration |
| JPS63318003A (en) * | 1987-05-26 | 1988-12-26 | ミネソタ マイニング アンド マニユフアクチユアリング カンパニー | Lighting equipment outputting normalized light |
| JPS6437801A (en) * | 1987-08-04 | 1989-02-08 | Matsushita Electric Ind Co Ltd | Voltage nonlinear element |
| JPH01234821A (en) * | 1988-03-16 | 1989-09-20 | Hitachi Ltd | Liquid crystal display device |
| JPH01241590A (en) * | 1988-03-23 | 1989-09-26 | Fujitsu Ltd | Surface lighting device |
| JPH0284618A (en) * | 1988-06-02 | 1990-03-26 | Mitsubishi Rayon Co Ltd | Panel light source element |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203950A (en) * | 1992-01-27 | 1993-08-13 | Sekisui Chem Co Ltd | Condenser sheet and panel light emitting device |
| US6799859B1 (en) | 2000-07-24 | 2004-10-05 | Mitsubishi Rayon Co., Ltd. | Surface illuminant device and prism sheet used therefor |
| JP2006179475A (en) * | 2004-11-24 | 2006-07-06 | Toshiba Matsushita Display Technology Co Ltd | Surface light source device and liquid crystal display device provided with the same |
| WO2007129415A1 (en) | 2006-05-08 | 2007-11-15 | Sony Corporation | Optical film, process for producing the same and display apparatus |
| JP2008231857A (en) * | 2007-03-23 | 2008-10-02 | Okumura Corp | Demolition equipment for tower-like structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507092Y2 (en) | 1996-08-14 |