Eye refractive power measurement apparatus

Details Eye refractive power measurement apparatus Eye refractive power measurement apparatus

2008-04-15

2008-04-15

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S211000

Reexamination Certificate

active

11388144

ABSTRACT:
An eye refractive power measurement apparatus capable of checking a presenting position (presenting distance) of a fixation target. The eye refractive power measurement apparatus has a measurement optical system for measuring eye refractive power of an examinee's eye, a fixation target presentation optical system for presenting a fixation target to the examinee's eye, a changing unit which changes a presenting position of the fixation target in a direction of an optical axis of the presentation optical system, a display, and a controller which controls to display a change of the presenting position as a diopter change on the display graphically.

REFERENCES:
patent: 5500697 (1996-03-01), Fujieda
patent: 6217172 (2001-04-01), Shibutani et al.
patent: 6547392 (2003-04-01), Fujieda
patent: 2005/0041210 (2005-02-01), Isogai et al.
patent: 2005/0146685 (2005-07-01), Hanaki et al.
patent: A-7-39517 (1995-02-01), None
patent: A-2000-262475 (2000-09-01), None
patent: A-2001-275974 (2001-10-01), None

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