JPS6455917U - - Google Patents
Info
- Publication number
- JPS6455917U JPS6455917U JP15181587U JP15181587U JPS6455917U JP S6455917 U JPS6455917 U JP S6455917U JP 15181587 U JP15181587 U JP 15181587U JP 15181587 U JP15181587 U JP 15181587U JP S6455917 U JPS6455917 U JP S6455917U
- Authority
- JP
- Japan
- Prior art keywords
- receiving element
- light receiving
- deflector
- lens
- scanning
- 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
- 230000003287 optical effect Effects 0.000 claims description 8
Landscapes
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は本考案の一実施例の走査光学系２１の
配置を示す平面図、第２図は本考案の他の実施例
の走査光学系２１ａの配置を示す平面図、第３図
は従来技術の走査光学系１の配置を示す平面図、
第４図は他の従来技術の走査光学系１ａの配置を
示す平面図である。
２１，２１ａ…走査光学系、２２…光源、２３
…偏向器、２４…ｆθレンズ、２５…感光ドラム
、２６…受光素子、２７…凸レンズ。
FIG. 1 is a plan view showing the arrangement of the scanning optical system 21 in one embodiment of the present invention, FIG. 2 is a plan view showing the arrangement of the scanning optical system 21a in another embodiment of the invention, and FIG. 3 is a conventional one. A plan view showing the arrangement of the scanning optical system 1 of the technology,
FIG. 4 is a plan view showing the arrangement of another conventional scanning optical system 1a. 21, 21a...Scanning optical system, 22...Light source, 23
...deflector, 24...fθ lens, 25...photosensitive drum, 26...light receiving element, 27...convex lens.
Claims (1)
を介して被走査媒体上に結像させ、偏向器と被走
査媒体との間に受光素子を設け、この受光素子の
出力に応答して被走査媒体の書込みまたは読取り
を同期的に行う走査光学系において、 偏向器と受光素子との間の光経路の途中に凸レ
ンズを介在し、ｆθレンズおよび凸レンズを介す
る光ビームを受光素子上に結像させることを特徴
とする走査光学系。[Claims for Utility Model Registration] A light beam from a light source is imaged on a scanning medium through a deflector and an fθ lens, a light receiving element is provided between the deflector and the scanning medium, and the light receiving element is In a scanning optical system that synchronously writes or reads a scanned medium in response to an output, a convex lens is interposed in the optical path between the deflector and the light receiving element, and the light beam passes through the fθ lens and the convex lens. A scanning optical system characterized by forming an image on a light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15181587U JPS6455917U (en) | 1987-10-02 | 1987-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15181587U JPS6455917U (en) | 1987-10-02 | 1987-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6455917U true JPS6455917U (en) | 1989-04-06 |
Family
ID=31426193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15181587U Pending JPS6455917U (en) | 1987-10-02 | 1987-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6455917U (en) |
-
1987
- 1987-10-02 JP JP15181587U patent/JPS6455917U/ja active Pending
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