JPH0340551B2 - - Google Patents
Info
- Publication number
- JPH0340551B2 JPH0340551B2 JP56027214A JP2721481A JPH0340551B2 JP H0340551 B2 JPH0340551 B2 JP H0340551B2 JP 56027214 A JP56027214 A JP 56027214A JP 2721481 A JP2721481 A JP 2721481A JP H0340551 B2 JPH0340551 B2 JP H0340551B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emitting
- light source
- linear
- shaped lens
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 2
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Image Input (AREA)
- Facsimile Scanning Arrangements (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027214A JPS57141174A (en) | 1981-02-26 | 1981-02-26 | Linear light source of light emitting diode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56027214A JPS57141174A (en) | 1981-02-26 | 1981-02-26 | Linear light source of light emitting diode |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57141174A JPS57141174A (en) | 1982-09-01 |
JPH0340551B2 true JPH0340551B2 (US06521211-20030218-C00004.png) | 1991-06-19 |
Family
ID=12214846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56027214A Granted JPS57141174A (en) | 1981-02-26 | 1981-02-26 | Linear light source of light emitting diode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141174A (US06521211-20030218-C00004.png) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972269A (ja) * | 1982-10-18 | 1984-04-24 | Alps Electric Co Ltd | 発光ダイオ−ドおよびこれを用いた情報読取装置 |
JPS6083463A (ja) * | 1983-10-13 | 1985-05-11 | Nec Corp | 原稿読み取り用光源 |
JPH0616363B2 (ja) * | 1986-06-27 | 1994-03-02 | 株式会社小糸製作所 | 照明装置 |
JPS63314962A (ja) * | 1987-06-18 | 1988-12-22 | Fuji Photo Film Co Ltd | 原稿照明装置 |
US5196950A (en) * | 1988-08-04 | 1993-03-23 | Ricoh Company, Ltd. | Optical reader and light source used for the same |
JP2011082969A (ja) * | 2009-09-10 | 2011-04-21 | Ricoh Co Ltd | 照明装置、画像読取装置及び画像形成装置 |
US8646941B1 (en) | 2010-06-14 | 2014-02-11 | Humanscale Corporation | Lighting apparatus and method |
-
1981
- 1981-02-26 JP JP56027214A patent/JPS57141174A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57141174A (en) | 1982-09-01 |
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