Optical scanning apparatus

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United States of America Patent

PATENT NO 9645522
SERIAL NO

15077465

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Abstract

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Provided is an optical scanning apparatus, including: a deflection unit; and an imaging optical element (IOE) guiding a light flux deflected by deflection unit onto a scanned surface, in which, an fθ coefficient of IOE, a focal length of IOE, and when an intersection between deflection unit and an optical axis of IOE is set as an origin, a coordinate in an optical axis direction (OAD) of an intersection between a principal ray of an outermost off-axis light flux and an incident surface of IOE, a coordinate in OAD of an intersection between principal ray of outermost off-axis light flux and an exit surface of IOE, a coordinate in OAD of an intersection between a principal ray of an on-axis light flux and the incident surface, and a coordinate in OAD of an intersection between principal ray of on-axis light flux and the exit surface are appropriately set.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Taki, Yoshiyuki Utsunomiya, JP 9 58

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