Title:
POLYGON MIRROR, OPTICAL DEFLECTOR, OPTICAL SCANNING DEVICE, IMAGE FORMING DEVICE, DIE, AND METHOD FOR MANUFACTURING RESIN BODY
Document Type and Number:
WIPO Patent Application WO/2021/240977
Kind Code:
A1
Abstract:
A polygon mirror comprising: a prismatic resin body (30) including a first bottom surface (301), a second bottom surface (302), and a plurality of side surfaces (351, 352, 353, 354); and reflecting films provided to each of the plurality of side surfaces (351, 352, 353, 354), the first bottom surface (301) having a first flat surface (310) having a polygonal external form, and at least one first groove (311) which is recessed with respect to the first flat surface (310) and which extends along the first side surface (351) from among the plurality of side surfaces (351, 352, 353, 354), and the first groove (311) being positioned so as not to intersect with diagonals (L11, L12) of the first flat surface (310).
Inventors:
TAKATA ATSUSHI (JP)
TANAKA TAKATOSHI (JP)
TANAKA TAKATOSHI (JP)
Application Number:
PCT/JP2021/012952
Publication Date:
December 02, 2021
Filing Date:
March 26, 2021
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
B29C33/42; G02B26/12; B29C45/37; B41J2/47
Foreign References:
| JPS5729004A | 1982-02-16 | |||
| JPH0429212A | 1992-01-31 | |||
| JPH03293108A | 1991-12-24 | |||
| JPH03181913A | 1991-08-07 | |||
| KR20050088653A | 2005-09-07 | |||
| DE4437690A1 | 1995-05-04 |
Attorney, Agent or Firm:
CHIKASHIMA & ASSOCIATES (JP)
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