Title:
自覚式検眼装置
Document Type and Number:
Japanese Patent JP6841091
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a subjective optometry apparatus capable of highly accurately performing subjective examinations with ease.SOLUTION: Provided is a subjective optometry apparatus for subjectively measuring the optical characteristics of a subject eye, including: a light projecting optical system for projecting a target light beam onto a subject eye; a fixed optical member for guiding an image of the target light beam such that an optically predetermined examination length is obtained; and a correction optical system arranged in the optical path of the light projecting optical system to vary the optical characteristics of the subject eye. The subjective optometry apparatus comprises: a measurement unit in which the light projecting optical system is contained; position information acquisition means for acquiring position information of the measurement unit; correction amount setting means for setting the amount of correction for correcting the projection magnification of the target light beam projected onto the subject eye based on the position information; and correction means for correcting the projection magnification of the target light beam based on the amount of correction set by the correction amount setting means.SELECTED DRAWING: Figure 1
Inventors:
Michihiro Takai
Masaaki Hanebuchi
Ochi Naga
Tachibana
Masaaki Hanebuchi
Ochi Naga
Tachibana
Application Number:
JP2017042455A
Publication Date:
March 10, 2021
Filing Date:
March 07, 2017
Export Citation:
Assignee:
NIDEK CORPORATION
International Classes:
A61B3/028; A61B3/032
Domestic Patent References:
| JP11047094A | ||||
| JP2009240727A | ||||
| JP9253049A |
Foreign References:
| US20150116666 |