JPS5515131A - Scanning optical system - Google Patents
Scanning optical systemInfo
- Publication number
- JPS5515131A JPS5515131A JP8732978A JP8732978A JPS5515131A JP S5515131 A JPS5515131 A JP S5515131A JP 8732978 A JP8732978 A JP 8732978A JP 8732978 A JP8732978 A JP 8732978A JP S5515131 A JPS5515131 A JP S5515131A
- Authority
- JP
- Japan
- Prior art keywords
- plane
- condensing
- deflection
- action
- optical system
- 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
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Lenses (AREA)
Abstract
PURPOSE:To perform inclination correction and making equal of beam spot speeds with a compact mechanism by providing a one-dimensional condensing optical system having condensing action within deflection scanning plane and a one-dimensional condensing optical system having condensing action in the deflection plane and perpendicular direction. CONSTITUTION:Beam from a laser light source LS is expanded of its diameter by a beam expander BE, is changed of its direction by a stationary mirror M and is changed of the sectional shape of parallel luminous flux by an anamorphic afocal beam expander 8, whereby the shape of th spot on the scanning plane is made to the specified one. This parallel luminous flux 1 is entered to the deflecting mirror 4 of a rotary polyhedral mirror 2 and is deflected along with its rotation. The deflected light is passed through the 1st cylindrical lens system 5 having the action of condensing the deflected light with respect to the deflection plane and the 2nd cylindrical lens 6 having the condensing action with respect to the plane rectangular to the deflection plane and is projected to the scanning plane 7 disposed at the focal plane of the lenses 5, 6. If the focal lengths of the lenses 5, 6 are let to be f, f', these become the relation of f>f'.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8732978A JPS5515131A (en) | 1978-07-18 | 1978-07-18 | Scanning optical system |
DE19782834085 DE2834085A1 (en) | 1977-08-05 | 1978-08-03 | OPTICAL SCANNING SYSTEM |
US06/126,347 US4318583A (en) | 1977-08-05 | 1980-03-03 | Optical scanning system with anamorphic optical system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8732978A JPS5515131A (en) | 1978-07-18 | 1978-07-18 | Scanning optical system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5515131A true JPS5515131A (en) | 1980-02-02 |
Family
ID=13911822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8732978A Pending JPS5515131A (en) | 1977-08-05 | 1978-07-18 | Scanning optical system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5515131A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6187123A (en) * | 1984-10-05 | 1986-05-02 | Konishiroku Photo Ind Co Ltd | Scanning optical system |
JPS63167329A (en) * | 1986-12-29 | 1988-07-11 | Sankyo Seiki Mfg Co Ltd | Optical scanner |
-
1978
- 1978-07-18 JP JP8732978A patent/JPS5515131A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6187123A (en) * | 1984-10-05 | 1986-05-02 | Konishiroku Photo Ind Co Ltd | Scanning optical system |
JPH0349407B2 (en) * | 1984-10-05 | 1991-07-29 | Konishiroku Photo Ind | |
JPS63167329A (en) * | 1986-12-29 | 1988-07-11 | Sankyo Seiki Mfg Co Ltd | Optical scanner |
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