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:
Nov. 02, 2010
Filed:
Jan. 06, 2006
Naoki Isogai, Nishio, JP;
Masaaki Hanebuchi, Nukata-gun, JP;
Mitsuhiro Gono, Nukata-gun, JP;
Kenji Nakamura, Gamagori, JP;
Naoki Isogai, Nishio, JP;
Masaaki Hanebuchi, Nukata-gun, JP;
Mitsuhiro Gono, Nukata-gun, JP;
Kenji Nakamura, Gamagori, JP;
Nidek Co., Ltd., Aichi, JP;
Abstract
An eye refractive power measurement apparatus for objectively measuring eye refractive power of a patient's eye, includes: a light-projecting optical system that includes a light source and projects measurement light onto a fundus of the patient's eye; a light-receiving optical system that includes an imager device serving as a two-dimensional light-receiving element and receives the measurement light reflected from the fundus; and an operating section that determines the eye refractive power of the eye based on a two-dimensional pattern image by the measurement light imaged by the imager device. The light source is a super-luminescent diode or a laser diode that emits light having a center wavelength in a range of approximately 850 nm to 940 nm.