The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2021
Filed:
Sep. 11, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Atsushi Takata, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29C 43/36 (2006.01); G02B 5/04 (2006.01); G02B 1/04 (2006.01); B29C 43/54 (2006.01); B29C 43/52 (2006.01); G02B 23/00 (2006.01); B29K 23/00 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00596 (2013.01); B29C 43/361 (2013.01); B29C 43/52 (2013.01); B29C 43/54 (2013.01); B29D 11/00432 (2013.01); G02B 1/04 (2013.01); G02B 5/04 (2013.01); B29C 2043/3613 (2013.01); B29C 2043/522 (2013.01); B29K 2023/00 (2013.01); B29L 2011/00 (2013.01); B29L 2011/0016 (2013.01); G02B 1/045 (2013.01); G02B 23/00 (2013.01);
Abstract
A forming mold for forming a prism by press molding includes a first mold, a second mold, and a third mold. The second mold includes a surface configured to form a base surface of a non-optical surface and is configured to define, together with the first mold, a space in which a material is disposed. The third mold is slidable with respect to the second mold so as to project toward the space with respect to the second mold and is configured to form a recess portion recessed with respect to the base surface.