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Title:
OPTOMETER
Document Type and Number:
Japanese Patent JP2014028070
Kind Code:
A
Abstract:

To provide a more compact and space saving optometer.

An optometer having an eye refractivity measuring unit with a pair of right and left lens chamber units for switching and arranging an optical element to an inspection window, and displaying an optotype to a subject eye looking into an inspection window, includes: a concave mirror arranged on a reference axis set such that a subject eye sees the optotype displayed at the front; a display for displaying the optotype; an optotype presentation unit which reflects an optotype light flux from the display with the concave mirror and displays the optotype to the subject eye; and support means which supports the eye refractivity measuring unit movably between an inspection position in front of the subject eye and a retreat position, and is provided at the optotype presentation unit.


Inventors:
HOSOI YOSHINOBU
SUZUKI RYOJI
KANAZAWA YUICHIRO
NOZAWA KENJI
Application Number:
JP2012170447A
Publication Date:
February 13, 2014
Filing Date:
July 31, 2012
Export Citation:
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Assignee:
NIDEK KK
International Classes:
A61B3/00; A61B3/02
Domestic Patent References:
JPH0966026A1997-03-11
JPH0838420A1996-02-13
JP2006129949A2006-05-25
JPH05228115A1993-09-07
JPH07194540A1995-08-01
JPH07299032A1995-11-14
JP2004298315A2004-10-28
JPH0966026A1997-03-11
JPH0838420A1996-02-13
JP2006129949A2006-05-25
JPH05228115A1993-09-07
Foreign References:
US5444504A1995-08-22
US5444504A1995-08-22



 
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