JPS61109421U - - Google Patents
Info
- Publication number
- JPS61109421U JPS61109421U JP15952685U JP15952685U JPS61109421U JP S61109421 U JPS61109421 U JP S61109421U JP 15952685 U JP15952685 U JP 15952685U JP 15952685 U JP15952685 U JP 15952685U JP S61109421 U JPS61109421 U JP S61109421U
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- focusing
- focusing device
- incident
- 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.)
- Granted
Links
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Description
第１図ａ，ｂは各々この考案の第一の実施例を
示す平面図及び正面図である。図において、１は
光ビーム発生装置、２は第一の集束装置、３は回
転多面鏡、４は第二の集束装置、５は第三の集束
装置、６は第四の集束装置、７は第五の集束装置
、８は走査面、９はミラーを各々表わす。
Figures 1a and 1b are a plan view and a front view, respectively, showing a first embodiment of this invention. In the figure, 1 is a light beam generator, 2 is a first focusing device, 3 is a rotating polygon mirror, 4 is a second focusing device, 5 is a third focusing device, 6 is a fourth focusing device, and 7 is a rotating polygon mirror. A fifth focusing device, 8 represents a scanning surface, and 9 represents a mirror.
Claims (1)
つて反射する光ビームを走査的に移動せしめる反
射装置と、上記光ビーム発生装置から入射する光
ビームを集束する第一の集束装置と、上記反射装
置から入射する光ビームに対してリレー系を構成
する第二及び第三の集束装置と、入射する光ビー
ムを上記反射装置の光ビーム走査方向と垂直な方
向に集束する一方向集束性を有する第四の集束装
置と、入射する光ビームを入射角θに対して走査
面上でＫ・θ（Ｋは定数）の像高の位置に集束す
る第五の集束装置とを含み、上記第一の集束装置
から入射する光ビームを第五の集束装置と、第三
の集束装置と、第四の集束装置と第二の集束装置
とを通過せしめて、上記反射装置の反対点上にお
いて上記反射装置の光ビーム走査方向と垂直な方
向には集束し上記反射装置の光ビーム走査方向に
はコリメートして前記反射装置に反射点に入射す
る様に第一の集束装置を配置し、上記第四の集束
装置をその光ビームの集束位置が上記第二の集束
装置の光ビーム集束位置と同一位置になる様に配
置し、上記反射装置で反射された光ビームを前記
の様に配置された第二の集束装置と、第四の集束
装置と、第三の集束装置と、第五の集束装置を通
過せしめて走査面に集束させることを特徴とする
光ビーム走査装置。 a light beam generator; a reflection device that receives an incident light beam and moves the reflected light beam in a scanning manner; a first focusing device that focuses the light beam incident from the light beam generator; and the reflection device. second and third focusing devices constituting a relay system for the light beam incident from the reflection device; and a fifth focusing device that focuses the incident light beam at an image height of K·θ (K is a constant) on the scanning plane with respect to the incident angle θ, The light beam incident from the focusing device is caused to pass through a fifth focusing device, a third focusing device, a fourth focusing device, and a second focusing device, and is directed to the reflecting device on the opposite point of the reflecting device. A first focusing device is arranged so as to focus the light beam in a direction perpendicular to the scanning direction of the light beam, collimate it in the scanning direction of the light beam of the reflecting device, and make the light beam incident on the reflecting device at a reflection point; The focusing device is arranged so that the focusing position of the light beam is the same as the light beam focusing position of the second focusing device, and the light beam reflected by the reflecting device is transferred to the second focusing device arranged as described above. A light beam scanning device characterized in that the light beam passes through a focusing device, a fourth focusing device, a third focusing device, and a fifth focusing device and is focused on a scanning surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15952685U JPS6230007Y2 (en) | 1985-10-18 | 1985-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15952685U JPS6230007Y2 (en) | 1985-10-18 | 1985-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109421U true JPS61109421U (en) | 1986-07-11 |
| JPS6230007Y2 JPS6230007Y2 (en) | 1987-08-01 |
Family
ID=30717480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15952685U Expired JPS6230007Y2 (en) | 1985-10-18 | 1985-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230007Y2 (en) |
-
1985
- 1985-10-18 JP JP15952685U patent/JPS6230007Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6230007Y2 (en) | 1987-08-01 |
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