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. 03, 2010
Filed:
Mar. 07, 2007
Yoshinobu Ebisawa, Hamamatsu, JP;
Yoshinobu Ebisawa, Hamamatsu, JP;
Abstract
A gaze point detecting devicedetects a gaze point of an object person by projecting a display image displayed by an LCDto outside via a finderand capturing an eye image of the object person by a CCDin response to illumination light irradiated toward outside from the finder, and the device comprises an optical systemarranged spaced only a focal length apart from a display surfaceon an optical path of an image displaying optical system between the LCDand the finder; the optical systembeing arranged on an optical path of an imaging optical system between the finderand the CCD; a telecentric optical system including a diaphragmarranged spaced only a focal length apart from the optical systemon the optical path; and a controllerthat detects a position of the gaze point of the object person based on the eye image captured by the CCD