JPH02150868U - - Google Patents
Info
- Publication number
- JPH02150868U JPH02150868U JP5945289U JP5945289U JPH02150868U JP H02150868 U JPH02150868 U JP H02150868U JP 5945289 U JP5945289 U JP 5945289U JP 5945289 U JP5945289 U JP 5945289U JP H02150868 U JPH02150868 U JP H02150868U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- source device
- image reading
- bar
- lens array
- 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 1
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Image Input (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図は本考案による画像読取り装置の一実施
例を示す概略図である。第２図は従来の画像読取
り装置の一例を示す概略断面図、第３図は第２図
の画像読取り装置で使用されるバー光源の斜視図
、第４図は第３図のバー光源の回路図である。
１０……画像読取り装置；１１……原稿；１２
……ＬＥＤバー光源；１３……レンズアレイ；１
４……基板；１５……受光装置。
FIG. 1 is a schematic diagram showing an embodiment of an image reading device according to the present invention. 2 is a schematic sectional view showing an example of a conventional image reading device, FIG. 3 is a perspective view of a bar light source used in the image reading device shown in FIG. 2, and FIG. 4 is a circuit of the bar light source shown in FIG. 3. It is a diagram. 10... Image reading device; 11... Original; 12
...LED bar light source; 13...Lens array; 1
4...Substrate; 15...Light receiving device.
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、レンズアレイ及び受光装置
を互いに組み立てた状態で、該受光装置の各読取
りドツトにおける画像読取り感度が一定になるよ
うに、上記バー光源装置の各発光ドツトの駆動電
圧を調整するようにしたことを特徴とする、画像
読取り装置。[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 an image reading device including a light receiving device through which light emitted from the document and reflected by the surface of the original is incident through a lens array, with the bar light source device, the lens array, and the light receiving device assembled together; An image reading device characterized in that the driving voltage of each light emitting dot of the bar light source device is adjusted so that the image reading sensitivity of each reading dot of the device is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5945289U JPH02150868U (en) | 1989-05-23 | 1989-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5945289U JPH02150868U (en) | 1989-05-23 | 1989-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02150868U true JPH02150868U (en) | 1990-12-27 |
Family
ID=31585955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5945289U Pending JPH02150868U (en) | 1989-05-23 | 1989-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02150868U (en) |
-
1989
- 1989-05-23 JP JP5945289U patent/JPH02150868U/ja active Pending