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. 11, 2021
Filed:
Aug. 24, 2017
Applicant:
Gopro, Inc., San Mateo, CA (US);
Inventors:
Yin-Min Huang, Hayward, CA (US);
Mark Schnittker, San Jose, CA (US);
Robert Hoffman, Fremont, CA (US);
Emilio Graff, Belmont, CA (US);
Assignee:
GoPro, Inc., San Mateo, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 17/02 (2006.01); H04N 5/232 (2006.01); H04N 17/00 (2006.01); G03B 43/00 (2021.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01); G03B 43/00 (2013.01); H04N 17/002 (2013.01);
Abstract
A continuous slanted edge focus measurement system characterizes focus of a camera lens. The measurement system may be used to measure effects on focus on caused by factors such as thermal focal shift, humidity focal shift, focal shift caused by changing parts in the camera, and focal shift by changing the camera design. An accurate measurement system enables camera designers to optimize focus under a variety of different conditions and ensure consistency in the products.