JPS6149340U - - Google Patents
Info
- Publication number
- JPS6149340U JPS6149340U JP13272384U JP13272384U JPS6149340U JP S6149340 U JPS6149340 U JP S6149340U JP 13272384 U JP13272384 U JP 13272384U JP 13272384 U JP13272384 U JP 13272384U JP S6149340 U JPS6149340 U JP S6149340U
- Authority
- JP
- Japan
- Prior art keywords
- platen
- light
- flash
- illumination means
- housing
- 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
- 238000003384 imaging method Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Projection-Type Copiers In General (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図はこの考案に係る複写機の露光装置の第
一実施例を示す斜視説明図、第２図及び第３図は
第１図中−線及び−線断面図、第４図は
第３図中−線断面図、第５図はこの考案に係
る複写機の露光装置の第二実施例を示す第４図に
相当する断面説明図、第６図は第５図に示す実施
例の変形例を示す説明図、第７図はフラツシユ光
源及び遮光部材の変形例を示す第３図に相当する
断面説明図、第８図は透光部の変形例を示す断面
説明図、第９図は従来における複写機の露光装置
の一例を示す斜視説明図、第１０図は第９図中
−線断面図である。
〔符号説明〕、Ｓ…フラツシユ照明手段、１…
キヤビテイ、２…ハウジング、２ａ…頂部、２ｂ
…側周部、２ｃ…底部、３…複写原稿、４…プラ
テン、５…高反射面、６…結像レンズ、１１…感
光面、２０，２０ａ乃至２０ｄ…フラツシユ光源
、２３，２３ａ乃至２３ｄ…シエード（遮光部材
）、２４…透光部。
FIG. 1 is a perspective explanatory view showing a first embodiment of an exposure device for a copying machine according to this invention, FIGS. 2 and 3 are sectional views taken along lines - and - in FIG. 1, and FIG. 5 is a sectional view corresponding to FIG. 4 showing a second embodiment of the exposure device for a copying machine according to the present invention, and FIG. 6 is a modification of the embodiment shown in FIG. 5. An explanatory diagram showing an example, FIG. 7 is a cross-sectional explanatory diagram corresponding to FIG. 3 showing a modification of the flash light source and light shielding member, FIG. 8 is a cross-sectional explanatory diagram showing a modification of the transparent part, and FIG. FIG. 10 is a perspective explanatory view showing an example of a conventional exposure device for a copying machine, and FIG. 10 is a cross-sectional view taken along the line in FIG. [Explanation of symbols], S...Flash lighting means, 1...
Cavity, 2...Housing, 2a...Top, 2b
...Side peripheral part, 2c...Bottom part, 3...Copy original, 4...Platen, 5...High reflective surface, 6...Imaging lens, 11...Photosensitive surface, 20, 20a to 20d...Flash light source, 23, 23a to 23d... Shade (light shielding member), 24...transparent part.
Claims (1)
且つ頂部に矩形状の開口を有するハウジングと、
このハウジングの上記開口に装着されて複写原稿
の載置面を構成し且つ透過性部材で形成されたプ
ラテンと、上記ハウジング内に配設されるフラツ
シユ照明手段と、上記ハウジングの底部略中央に
開設した孔に装着される結像レンズとを備え、上
記フラツシユ照明手段からの照射光によつて上記
プラテン上の複写原稿全面を略均一に照明し、上
記複写原稿の原像を上記結像レンズを介して所定
の感光面に投影するようにした複写機の露光装置
において、上記フラツシユ照明手段は、上記プラ
テンの各隅部に対応して夫々設置されるフラツシ
ユ光源と、各フラツシユ光源からプラテンへ向か
う直射光を遮断する遮光部材とを備え、上記遮光
部材には上記プラテンの各隅部へ向けて上記直射
光を減衰通過させる透光部を形成したことを特徴
とする複写機の露光装置。 a housing that surrounds a substantially box-shaped cavity with a highly reflective surface and has a rectangular opening at the top;
a platen that is attached to the opening of the housing and forms a placement surface for a copy original and is made of a transparent member; a flash illumination means that is disposed within the housing; and an imaging lens mounted in the hole formed by the flash illumination means, the entire surface of the copy original on the platen is substantially uniformly illuminated by the irradiation light from the flash illumination means, and the original image of the copy original is illuminated by the imaging lens. In the exposure device of a copying machine, the flash illumination means includes a flash light source installed corresponding to each corner of the platen, and a flash light source directed toward the platen from each flash light source. 1. An exposure device for a copying machine, comprising: a light-shielding member that blocks direct light; the light-shielding member has a light-transmitting portion that attenuates and passes the direct light toward each corner of the platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13272384U JPS6149340U (en) | 1984-09-03 | 1984-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13272384U JPS6149340U (en) | 1984-09-03 | 1984-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6149340U true JPS6149340U (en) | 1986-04-02 |
Family
ID=30691283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13272384U Pending JPS6149340U (en) | 1984-09-03 | 1984-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6149340U (en) |
-
1984
- 1984-09-03 JP JP13272384U patent/JPS6149340U/ja active Pending
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