Invention Grant
- Patent Title: Eye refractive power measurement apparatus
- Patent Title (中): 眼屈光力测量仪
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Application No.: US11813553Application Date: 2006-01-06
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Publication No.: US07824032B2Publication Date: 2010-11-02
- Inventor: Naoki Isogai , Masaaki Hanebuchi , Mitsuhiro Gono , Kenji Nakamura
- Applicant: Naoki Isogai , Masaaki Hanebuchi , Mitsuhiro Gono , Kenji Nakamura
- Applicant Address: JP Aichi
- Assignee: Nidek Co., Ltd.
- Current Assignee: Nidek Co., Ltd.
- Current Assignee Address: JP Aichi
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-002060 20050107; JP2005-002061 20050107
- International Application: PCT/JP2006/300116 WO 20060106
- International Announcement: WO2006/073196 WO 20060713
- Main IPC: A61B3/08
- IPC: A61B3/08 ; A61B3/10

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.
Public/Granted literature
- US20090185136A1 EYE REFRACTIVE POWER MEASUREMENT APPARATUS Public/Granted day:2009-07-23
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