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.

Date of Patent:
Nov. 20, 2007

Filed:

Jan. 29, 2003
Applicants:

Donald J. Stavely, Windsor, CO (US);

David K. Campbell, Loveland, CA (US);

Eric F. Aas, Windsor, CO (US);

Gregory V. Hofer, Loveland, OR (US);

Scott A. Woods, Bellvue, CO (US);

Dan L. Dalton, Greeley, CO (US);

Kurt E. Spears, Fort Collins, CO (US);

Inventors:

Donald J. Stavely, Windsor, CO (US);

David K. Campbell, Loveland, CA (US);

Eric F. Aas, Windsor, CO (US);

Gregory V. Hofer, Loveland, OR (US);

Scott A. Woods, Bellvue, CO (US);

Dan L. Dalton, Greeley, CO (US);

Kurt E. Spears, Fort Collins, CO (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Viewfinder apparatus, methods, and digital cameras that provide autofocus using retroreflected eye focus measurements. When a user looks at a part of a scene that is the intended subject of the image, his or her eye is correctly focused. The present invention measures the focus distance of the eye when the eye is focused on the desired location in the scene, and then uses the measured distance to set the focus of the camera.


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