JPH01146247U - - Google Patents
Info
- Publication number
- JPH01146247U JPH01146247U JP4121788U JP4121788U JPH01146247U JP H01146247 U JPH01146247 U JP H01146247U JP 4121788 U JP4121788 U JP 4121788U JP 4121788 U JP4121788 U JP 4121788U JP H01146247 U JPH01146247 U JP H01146247U
- Authority
- JP
- Japan
- Prior art keywords
- light
- document
- reflecting mirror
- reflected
- mirrors
- 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
- 230000004907 flux Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は本考案の原稿照明装置の構成を示す側
面図、第２図は本考案の光量分布調整装置の構成
を示す斜視図、第３図は光量分布調整装置を構成
する遮光板の連結状態の説明図、第４図は本考案
の光量分布調整装置の組立体の説明図、第５図は
光量分布調整装置を移動させない状態での原稿照
明装置の側面図、第６図は光量分布調整装置を移
動させた場合の原稿照明装置の説明図、第７図は
照度と照明領域の開係のグラフ、第８図は本考案
が適用され得る複写機の説明図、第９図は従来例
の原稿照明装置の側面図であり、第１０図は従来
の装置の場合の照度の分布を示すグラフである。
図中の符号、１……プラテン、２……レンズ、
３……感光体ドラム、５……原稿照明装置、６…
…棒状光源、７……主反射鏡、８……副反射鏡、
９……ミラー、１０……光量分布調整装置、１１
……遮光板、１２……長孔、１３……ピン、１５
……上部固定部材、１６……下部固定部材、１７
……止め具、２０……照明領域、２１……主反射
鏡からの光束、２２……副反射鏡からの光束。
Fig. 1 is a side view showing the structure of the original illumination device of the present invention, Fig. 2 is a perspective view showing the structure of the light intensity distribution adjusting device of the present invention, and Fig. 3 is a connection of light shielding plates constituting the light intensity distribution adjusting device. Fig. 4 is an explanatory diagram of the assembly of the light intensity distribution adjusting device of the present invention, Fig. 5 is a side view of the document illumination device in a state where the light intensity distribution adjusting device is not moved, and Fig. 6 is a diagram showing the light intensity distribution. An explanatory diagram of the document illumination device when the adjustment device is moved, FIG. 7 is a graph of illuminance and illumination area ratio, FIG. 8 is an explanatory diagram of a copying machine to which the present invention can be applied, and FIG. 9 is a conventional one. FIG. 10 is a side view of an example document illumination device, and FIG. 10 is a graph showing the illuminance distribution in the case of a conventional device. Symbols in the diagram: 1...platen, 2...lens,
3...Photosensitive drum, 5...Document illumination device, 6...
... Bar-shaped light source, 7... Main reflecting mirror, 8... Sub-reflecting mirror,
9...Mirror, 10...Light amount distribution adjustment device, 11
... Light shielding plate, 12 ... Long hole, 13 ... Pin, 15
...Upper fixing member, 16...Lower fixing member, 17
... Stopper, 20 ... Illumination area, 21 ... Luminous flux from the main reflecting mirror, 22... Luminous flux from the sub-reflecting mirror.
Claims (1)
の光を主反射鏡と副反射鏡からの反射光によつて
照射し、該原稿の反射光を複数のミラーと、該ミ
ラーの間に配置したレンズを介して感光体ドラム
に伝達するように構成してなる装置において、 前記反射鏡により原稿を照射する光束の中に進
出可能な光束調整手段を設け、 該光束調整手段は、多数の巾の狭い板部材によ
り構成されるとともに、それぞれの板部材はピン
と長孔とを介して連結され、原稿の巾方向に光の
照射状態を制御出来るように構成したことを特徴
とする電子複写機の照明装置。[Claims for Utility Model Registration] A document set on a platen is irradiated with light from a lamp by reflected light from a main reflecting mirror and a sub-reflecting mirror, and the reflected light from the document is reflected by a plurality of mirrors, In the apparatus configured to transmit light to the photosensitive drum via a lens disposed between the mirrors, a light flux adjusting means capable of entering into the light beam irradiated onto the document by the reflecting mirror is provided, and the light flux adjustment means is provided. The means is characterized in that it is constituted by a number of narrow plate members, each of which is connected via a pin and a long hole, so that the state of light irradiation can be controlled in the width direction of the document. Lighting system for electronic copying machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4121788U JPH01146247U (en) | 1988-03-30 | 1988-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4121788U JPH01146247U (en) | 1988-03-30 | 1988-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146247U true JPH01146247U (en) | 1989-10-09 |
Family
ID=31267659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4121788U Pending JPH01146247U (en) | 1988-03-30 | 1988-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146247U (en) |
-
1988
- 1988-03-30 JP JP4121788U patent/JPH01146247U/ja active Pending
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