JPS5257823A - Light ray scanning device - Google Patents

Light ray scanning device

Info

Publication number
JPS5257823A
JPS5257823A JP13306375A JP13306375A JPS5257823A JP S5257823 A JPS5257823 A JP S5257823A JP 13306375 A JP13306375 A JP 13306375A JP 13306375 A JP13306375 A JP 13306375A JP S5257823 A JPS5257823 A JP S5257823A
Authority
JP
Japan
Prior art keywords
light ray
scanning device
ray scanning
concave
reflecting
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
Application number
JP13306375A
Other languages
Japanese (ja)
Inventor
Fuminobu Takahashi
Kazumichi Suzuki
Yoshihiro Michiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13306375A priority Critical patent/JPS5257823A/en
Publication of JPS5257823A publication Critical patent/JPS5257823A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE: To reduce the distortion of a projected image and enhance the accuracy in reference to the rotation of a reflecting mirror in the galvanometer, etc., by scanning the light ray by the combination of a concave reflecting mirrow and a concave mirror rotatable around two axes orthogonal each other with the focus as its center.
COPYRIGHT: (C)1977,JPO&Japio
JP13306375A 1975-11-07 1975-11-07 Light ray scanning device Pending JPS5257823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13306375A JPS5257823A (en) 1975-11-07 1975-11-07 Light ray scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13306375A JPS5257823A (en) 1975-11-07 1975-11-07 Light ray scanning device

Publications (1)

Publication Number Publication Date
JPS5257823A true JPS5257823A (en) 1977-05-12

Family

ID=15095953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13306375A Pending JPS5257823A (en) 1975-11-07 1975-11-07 Light ray scanning device

Country Status (1)

Country Link
JP (1) JPS5257823A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984857A (en) * 1989-01-17 1991-01-15 Iowa State University Research Foundation, Inc. Linearization of scan velocity of resonant vibrating-mirror beam deflectors
JP2013041182A (en) * 2011-08-18 2013-02-28 Ricoh Co Ltd Optical scanner, image-forming device and vehicle equipped with image-forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984857A (en) * 1989-01-17 1991-01-15 Iowa State University Research Foundation, Inc. Linearization of scan velocity of resonant vibrating-mirror beam deflectors
JP2013041182A (en) * 2011-08-18 2013-02-28 Ricoh Co Ltd Optical scanner, image-forming device and vehicle equipped with image-forming device

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