JPH032771U - - Google Patents
Info
- Publication number
- JPH032771U JPH032771U JP6200789U JP6200789U JPH032771U JP H032771 U JPH032771 U JP H032771U JP 6200789 U JP6200789 U JP 6200789U JP 6200789 U JP6200789 U JP 6200789U JP H032771 U JPH032771 U JP H032771U
- Authority
- JP
- Japan
- Prior art keywords
- document
- light source
- source device
- cathode tube
- illumination
- 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.)
- Pending
Links
- 238000005286 illumination Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図は本考案による画像読取り用照明装置の
一実施例における陰極管を示すもので、Ａはその
概略平面図、Ｂは発光光量分布を示すグラフであ
る。第２図は従来の画像読取り装置の構成を示す
概略図、第３図は第２図の画像読取り装置で使用
される陰極管を示し、Ａは概略平面図、Ｂは発光
光量分布を示すグラフである。
１０……画像読取り用照明装置、１１……陰極
管、１１ｂ，１１ｃ……折曲部分、ｌｃ……有効
照明長。
FIG. 1 shows a cathode tube in an embodiment of the illumination device for image reading according to the present invention, where A is a schematic plan view thereof and B is a graph showing the distribution of the amount of emitted light. FIG. 2 is a schematic diagram showing the configuration of a conventional image reading device, FIG. 3 is a cathode tube used in the image reading device shown in FIG. 2, A is a schematic plan view, and B is a graph showing the luminous light amount distribution It is. 10... Image reading illumination device, 11... Cathode tube, 11b, 11c... Bent portion, lc... Effective illumination length.
Claims (1)
て、その移動方向に直交する走査方向に沿つてラ
イン状の照明光を照射するバー光源装置と、該バ
ー光源装置から照射され上記原稿の表面で反射さ
れた光がレンズアレイを介して入射される受光装
置とを含む画像読取り装置において、 上記バー光源装置が、長手方向に延びる陰極管
により構成されていて、該陰極管の有効照明長よ
り外側の部分が折り曲げられていることを特徴と
する画像読取り用照明装置。[Claims for Utility Model Registration] A bar light source device that irradiates a document that is relatively moved in one direction with linear illumination light along a scanning direction perpendicular to the direction of movement, and the bar light source device and a light receiving device through which light emitted from the document surface and reflected by the surface of the document is incident through a lens array, wherein the bar light source device is constituted by a cathode tube extending in the longitudinal direction, An illumination device for image reading, characterized in that a portion of a cathode tube outside the effective illumination length is bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6200789U JPH032771U (en) | 1989-05-29 | 1989-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6200789U JPH032771U (en) | 1989-05-29 | 1989-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032771U true JPH032771U (en) | 1991-01-11 |
Family
ID=31590767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6200789U Pending JPH032771U (en) | 1989-05-29 | 1989-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009112230A (en) * | 2007-11-05 | 2009-05-28 | Kyudensha:Kk | Roasting device and method for controlling the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63221765A (en) * | 1987-03-11 | 1988-09-14 | Matsushita Electric Ind Co Ltd | Image information reading device |
| JPS63246737A (en) * | 1987-04-01 | 1988-10-13 | Matsushita Electric Ind Co Ltd | Light source for illuminating the scanned document |
| JPH01226267A (en) * | 1988-03-04 | 1989-09-08 | Matsushita Electric Ind Co Ltd | image input device |
-
1989
- 1989-05-29 JP JP6200789U patent/JPH032771U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63221765A (en) * | 1987-03-11 | 1988-09-14 | Matsushita Electric Ind Co Ltd | Image information reading device |
| JPS63246737A (en) * | 1987-04-01 | 1988-10-13 | Matsushita Electric Ind Co Ltd | Light source for illuminating the scanned document |
| JPH01226267A (en) * | 1988-03-04 | 1989-09-08 | Matsushita Electric Ind Co Ltd | image input device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009112230A (en) * | 2007-11-05 | 2009-05-28 | Kyudensha:Kk | Roasting device and method for controlling the same |
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