JPH0343659U - - Google Patents
Info
- Publication number
- JPH0343659U JPH0343659U JP10438789U JP10438789U JPH0343659U JP H0343659 U JPH0343659 U JP H0343659U JP 10438789 U JP10438789 U JP 10438789U JP 10438789 U JP10438789 U JP 10438789U JP H0343659 U JPH0343659 U JP H0343659U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal shutter
- document
- light
- copying machine
- 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 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図は本考案の一実施例で使用時圧板を開い
た時の外観斜視図、第２図は第１図の走査型照明
装置の正断面図、第３図はブロツク図、第４図は
フローチヤート図、第５図はタイミングチヤート
、第６図は第２図の要部斜視図である。
１……複写機、３……コンタクトガラス、４…
…ブツクモードスイツチ、６……ブツク原稿、７
……走査型原稿照明装置、８……リフレクタ、９
……ランプ、１０……導光部材、１１……フオト
トランジスタアレイ、１３……液晶シヤツター。
Fig. 1 is an external perspective view of an embodiment of the present invention when the pressure plate is opened during use, Fig. 2 is a front sectional view of the scanning illumination device shown in Fig. 1, Fig. 3 is a block diagram, and Fig. 4 5 is a flowchart, FIG. 5 is a timing chart, and FIG. 6 is a perspective view of the main part of FIG. 2. 1...copy machine, 3...contact glass, 4...
...Book mode switch, 6...Book manuscript, 7
...Scanning type document illumination device, 8...Reflector, 9
... Lamp, 10 ... Light guide member, 11 ... Phototransistor array, 13 ... Liquid crystal shutter.
Claims (1)
装置の光源よりコンタクトガラスに載置された原
稿に達する光路にＬＣＤで構成され、１列に配置
された最小開閉制御単位毎に独立して開閉する液
晶シヤツターを配設し、該液晶シヤツターの走査
方向前方に液晶シヤツターに対応した所定距離前
方の原稿位置まで照明光を導く導光部材を配設し
、原稿の有無によつて該液晶シヤツターを開閉す
る手段を有することを特徴とする複写機等の防眩
装置。 In a copying machine equipped with a scanning type document illumination device, the light path from the light source of the illumination device to the document placed on the contact glass is composed of an LCD, and each minimum opening/closing control unit arranged in a row is independently controlled. A liquid crystal shutter that opens and closes is provided, and a light guiding member is provided in front of the liquid crystal shutter in the scanning direction to guide illumination light to a document position a predetermined distance in front of the liquid crystal shutter, and the liquid crystal shutter changes depending on the presence or absence of a document. 1. An anti-glare device for a copying machine, etc., characterized by having means for opening and closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10438789U JPH0343659U (en) | 1989-09-07 | 1989-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10438789U JPH0343659U (en) | 1989-09-07 | 1989-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343659U true JPH0343659U (en) | 1991-04-24 |
Family
ID=31653183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10438789U Pending JPH0343659U (en) | 1989-09-07 | 1989-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343659U (en) |
-
1989
- 1989-09-07 JP JP10438789U patent/JPH0343659U/ja active Pending
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