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:
Sep. 18, 2012
Filed:
Nov. 07, 2008
Kazutaka Suzuki, Hamamatsu, JP;
Haruyoshi Toyoda, Hamamatsu, JP;
Munenori Takumi, Hamamatsu, JP;
Naohisa Mukozaka, Hamamatsu, JP;
Kazutaka Suzuki, Hamamatsu, JP;
Haruyoshi Toyoda, Hamamatsu, JP;
Munenori Takumi, Hamamatsu, JP;
Naohisa Mukozaka, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
An eye movement measurement apparatusmeasures movement of a corneaby imaging a corneal reflection light image Lgenerated as a result of irradiating the corneawith infrared light L. The eye movement measurement apparatusincludes: an imaging sectionhaving a sensor sectionincluding a plurality of pixels arrayed two-dimensionally, for generating imaging data including the corneal reflection light image Lmade incident on the sensor section; a bright spot position operation sectionthat calculates a position of the corneal reflection light image Lin the imaging data; and a tremor signal operation sectionthat generates a third data string indicating a tremor component included in movement of the corneaby calculating a difference between a first data string concerning temporal changes in position of the corneal reflection light image Land a second data string obtained by smoothing the first data string. Accordingly, an eye movement measurement apparatus capable of accurately detecting a tremor component is realized.