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:
May. 18, 2010
Filed:
Sep. 07, 2007
Applicant:
Kevin Wan, Orange, CA (US);
Inventor:
Kevin Wan, Orange, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens cap for a camera is disclosed, comprising: a reference surface, the reference surface having the capability of being used to calibrate an exposure setting or a white balance setting of a photographic subject; wherein the lens cap is placed in front of a lens of the camera in the lighting conditions of the photographic subject, the reference surface being directed towards the lens; and wherein an intensity of the visible light spectrum being reflected by the reference surface is detected.
Wan, Kevin. (2010). Lens cap with integral reference surface (U.S. Patent No. 7717630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7717630
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile