US 7,549,750 B2
Optometer
Shinichi Nakamura, Tokyo (Japan); and Hiroaki Ogushi, Tokyo (Japan)
Assigned to Kabushiki Kaisha Topcon, Itabashi-Ku (Japan)
Filed on Sep. 06, 2005, as Appl. No. 11/218,766.
Claims priority of application No. 2004-257984 (JP), filed on Sep. 06, 2004.
Prior Publication US 2006/0050238 A1, Mar. 09, 2006
Int. Cl. A61B 3/02 (2006.01)
U.S. Cl. 351—237 14 Claims
OG exemplary drawing
 
1. An optometer, comprising:
an examination result display mechanism comprising a phoropter configured to mechanically display a numeric value specifying a correcting refractive power for an eye to be examined;
imaging part configured to take an image of at least a numeric part shown on a face of the examination result display mechanism;
image analysis part configured to recognize a shape of a pattern included in the image of the numeric part taken by the imaging part to identify the numeric value indicated by the shape of the pattern to acquire the parameter in accordance with the numeric value; and
an electric display part configured to electrically display on screen the parameter acquired by the image analysis part.