Title:
OPTOMETER
Document Type and Number:
Japanese Patent JP2014028068
Kind Code:
A
Abstract:
To reduce adjustment intervention by making unnecessary structures as invisible as possible.
An optometer includes: an optotype presentation unit having a display for displaying an optotype and a concave mirror for reflecting an optotype light flux from the display and for guiding light to a subject eye; and 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. The display is arranged outside a prescribed view angle when the subject eye looks into the inspection window.
Inventors:
KANAZAWA YUICHIRO
SUZUKI RYOJI
NOZAWA KENJI
HIRAYAMA YUKITO
KOBAYASHI TOSHIHIRO
SUZUKI RYOJI
NOZAWA KENJI
HIRAYAMA YUKITO
KOBAYASHI TOSHIHIRO
Application Number:
JP2012170445A
Publication Date:
February 13, 2014
Filing Date:
July 31, 2012
Export Citation:
Assignee:
NIDEK KK
International Classes:
A61B3/028