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:
Aug. 13, 2019
Filed:
Dec. 22, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shusuke Tobita, Kamakura, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29K 69/00 (2006.01); G02B 27/00 (2006.01); G03B 17/02 (2006.01); G03B 17/56 (2006.01);
U.S. Cl.
CPC ...
G03B 17/568 (2013.01); B29D 11/00413 (2013.01); B29D 11/00519 (2013.01); G02B 27/0006 (2013.01); G03B 17/02 (2013.01); B29K 2069/00 (2013.01); B29K 2995/0018 (2013.01);
Abstract
A dome-shaped cover having a high optical performance in which formation of a weld mark is suppressed. The dome cover includes a hemispherical portion, a collar portion, and a cylindrical portion provided between the hemispherical portion and the collar portion, and the cylindrical portion has a thin portion recessed from an outer surface of the cylindrical portion.