JPH03113566U - - Google Patents
Info
- Publication number
- JPH03113566U JPH03113566U JP2050590U JP2050590U JPH03113566U JP H03113566 U JPH03113566 U JP H03113566U JP 2050590 U JP2050590 U JP 2050590U JP 2050590 U JP2050590 U JP 2050590U JP H03113566 U JPH03113566 U JP H03113566U
- Authority
- JP
- Japan
- Prior art keywords
- document
- light source
- illumination light
- illumination
- partition plates
- 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
- 238000005192 partition Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図ａ，ｂは本考案の仕切り板の配置を示す
概略側面図及び概略平面図、第２図は本考案を適
用できるデジタル複写機の概略断面図、第３図は
光源のシエーデイング発生を説明するための説明
図、第４図は照明光源の主走査方向での光量分布
を示すグラフ、第５図ａ，ｂはフレア光の発生原
因を説明するための説明図である。
１……コンタクトガラス、２ａ，２ｂ……照明
光源、９……ＣＣＤイメージセンサ、１２……原
稿、１３……仕切り板。
Figures 1a and b are a schematic side view and a schematic plan view showing the arrangement of the partition plates of the present invention, Figure 2 is a schematic cross-sectional view of a digital copying machine to which the present invention can be applied, and Figure 3 is a diagram showing the occurrence of shading of the light source. FIG. 4 is a graph showing the light amount distribution in the main scanning direction of the illumination light source, and FIGS. 5a and 5b are explanatory diagrams for explaining the cause of flare light. 1... Contact glass, 2a, 2b... Illumination light source, 9... CCD image sensor, 12... Document, 13... Partition plate.
Claims (1)
し、前記原稿面からの反射光を受光面により検知
して、原稿面の読み取りを行う原稿読取装置にお
いて、照明光源と原稿面との間で、主走査方向に
直角に仕切り板を配置し、該仕切り板の間隔を照
明光源の中央部で狭く、中央部から端部に向かう
に従い徐々に広くしたことを特徴とする原稿読取
装置における照明装置。 In a document reading device that reads the document surface by illuminating the document surface with light from a surface-emitting illumination light source and detecting reflected light from the document surface with a light receiving surface, there is a light beam between the illumination light source and the document surface. An illumination device for a document reading device, characterized in that partition plates are arranged at right angles to the main scanning direction, and the intervals between the partition plates are narrow at the center of the illumination light source and gradually widen from the center to the ends. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050590U JPH03113566U (en) | 1990-03-02 | 1990-03-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050590U JPH03113566U (en) | 1990-03-02 | 1990-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03113566U true JPH03113566U (en) | 1991-11-20 |
Family
ID=31523598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2050590U Pending JPH03113566U (en) | 1990-03-02 | 1990-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03113566U (en) |
-
1990
- 1990-03-02 JP JP2050590U patent/JPH03113566U/ja active Pending