JPH0419064U - - Google Patents
Info
- Publication number
- JPH0419064U JPH0419064U JP5972990U JP5972990U JPH0419064U JP H0419064 U JPH0419064 U JP H0419064U JP 5972990 U JP5972990 U JP 5972990U JP 5972990 U JP5972990 U JP 5972990U JP H0419064 U JPH0419064 U JP H0419064U
- Authority
- JP
- Japan
- Prior art keywords
- original
- light source
- light
- optical path
- plate
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 2
- 230000020169 heat generation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
第１図ないし第５図は本考案による原稿読取装
置の一実施例を示す図であり、第１図はその光学
系を示す平面図、第２図はその側面図、第３図は
原稿読取装置の機構部を示す平面図、第４図はそ
の側面図、第５図ａ〜ｃはそれぞれシエーデイン
グ板の作動を示す側面図である。第６図は蛍光灯
の発光による長さ方向の照度分布を示す特性図で
ある。
１……光源、３……シユーデイング板、４……
引張バネ（バネ体）、５……調整部材、７……読
取手段。
1 to 5 are diagrams showing an embodiment of the document reading device according to the present invention, in which FIG. 1 is a plan view showing its optical system, FIG. 2 is a side view thereof, and FIG. 3 is a document reading device. FIG. 4 is a plan view showing the mechanism of the device, FIG. 4 is a side view thereof, and FIGS. 5 a to 5 c are side views showing the operation of the shedding plate. FIG. 6 is a characteristic diagram showing the illuminance distribution in the length direction due to light emission from a fluorescent lamp. 1...Light source, 3...Shuding board, 4...
Tension spring (spring body), 5...adjusting member, 7...reading means.
Claims (1)
光路内に挿入されて原稿への光量分布を補正する
シエーデイング板と、原稿からの光によつて原稿
の画像を読取る読取手段と、前記シエーデイング
板を前記光路内への挿脱方向に付勢するバネ体と
、前記光源の熱が伝達される形状記憶合金により
成形され、光源の発熱状態に応じて前記シエーデ
イング板の光路内への挿入量を調整する調整部材
とを備えていることを特徴とする原稿読取装置。 a light source that irradiates the original with light; a shading plate that is inserted into the optical path from the light source to the original to correct the light amount distribution on the original; a reading unit that reads an image of the original using light from the original; A spring body that biases the plate in the insertion/removal direction into the optical path, and a shape memory alloy formed from a shape memory alloy to which the heat of the light source is transmitted, and the amount of insertion of the shedding plate into the optical path depending on the heat generation state of the light source. An adjustment member for adjusting the document reading device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5972990U JPH0749886Y2 (en) | 1990-06-06 | 1990-06-06 | Document reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5972990U JPH0749886Y2 (en) | 1990-06-06 | 1990-06-06 | Document reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0419064U true JPH0419064U (en) | 1992-02-18 |
| JPH0749886Y2 JPH0749886Y2 (en) | 1995-11-13 |
Family
ID=31586483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5972990U Expired - Lifetime JPH0749886Y2 (en) | 1990-06-06 | 1990-06-06 | Document reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749886Y2 (en) |
-
1990
- 1990-06-06 JP JP5972990U patent/JPH0749886Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749886Y2 (en) | 1995-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |