JPS5817957B2 - ヒカリカクサンソウチ - Google Patents

ヒカリカクサンソウチ

Info

Publication number
JPS5817957B2
JPS5817957B2 JP50012799A JP1279975A JPS5817957B2 JP S5817957 B2 JPS5817957 B2 JP S5817957B2 JP 50012799 A JP50012799 A JP 50012799A JP 1279975 A JP1279975 A JP 1279975A JP S5817957 B2 JPS5817957 B2 JP S5817957B2
Authority
JP
Japan
Prior art keywords
light
substrate
light source
transparent substrate
distribution
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
Application number
JP50012799A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5188042A (ro
Inventor
溝畑行雄
立原典文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP50012799A priority Critical patent/JPS5817957B2/ja
Priority to US05/652,574 priority patent/US4059916A/en
Publication of JPS5188042A publication Critical patent/JPS5188042A/ja
Publication of JPS5817957B2 publication Critical patent/JPS5817957B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
JP50012799A 1975-01-30 1975-01-30 ヒカリカクサンソウチ Expired JPS5817957B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50012799A JPS5817957B2 (ja) 1975-01-30 1975-01-30 ヒカリカクサンソウチ
US05/652,574 US4059916A (en) 1975-01-30 1976-01-26 Light diffusing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50012799A JPS5817957B2 (ja) 1975-01-30 1975-01-30 ヒカリカクサンソウチ

Publications (2)

Publication Number Publication Date
JPS5188042A JPS5188042A (ro) 1976-08-02
JPS5817957B2 true JPS5817957B2 (ja) 1983-04-11

Family

ID=11815427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50012799A Expired JPS5817957B2 (ja) 1975-01-30 1975-01-30 ヒカリカクサンソウチ

Country Status (1)

Country Link
JP (1) JPS5817957B2 (ro)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0778440A2 (en) 1995-12-05 1997-06-11 Matsushita Electric Industrial Co., Ltd. Backlighting device and color display device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825405Y2 (ja) * 1975-05-22 1983-05-31 日本電産コパル株式会社 シヨウメイソウチツキエキシヨウヒヨウジソウチ
JPS51104294A (ja) * 1975-03-12 1976-09-14 Hitachi Ltd Ekishohyojisochi
JPS5376937U (ro) * 1976-11-30 1978-06-27
JPS5713478A (en) * 1980-06-26 1982-01-23 Epson Corp Back light structure for display unit
USRE33987E (en) * 1980-03-24 1992-07-07 Seiko Epson Corporation Backlighted liquid crystal display
JPS5754980A (en) * 1980-09-19 1982-04-01 Tokyo Shibaura Electric Co Liquid crystal display unit
JPS63239702A (ja) * 1987-03-27 1988-10-05 株式会社小糸製作所 装飾用レンズ照明装置
JPH0348280A (ja) * 1990-01-19 1991-03-01 Seiko Epson Corp 表示体用照明装置
JPH05264819A (ja) * 1992-09-07 1993-10-15 Seiko Epson Corp 平面光源
JP4511062B2 (ja) * 2001-02-21 2010-07-28 日本ライツ株式会社 平面照明装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491253A (ro) * 1972-03-10 1974-01-08

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4965172U (ro) * 1972-09-19 1974-06-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491253A (ro) * 1972-03-10 1974-01-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0778440A2 (en) 1995-12-05 1997-06-11 Matsushita Electric Industrial Co., Ltd. Backlighting device and color display device

Also Published As

Publication number Publication date
JPS5188042A (ro) 1976-08-02

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