Title:
OPHTHALMOLOGIC APPARATUS
Document Type and Number:
Japanese Patent JP2015205176
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ophthalmologic apparatus capable of contributing to size reduction of the apparatus, and acquiring an image of an eyeground with improved image quality with a wide visual field.SOLUTION: An ophthalmologic device comprises: a two-dimensional scanning optical system; a refraction optical system; and a concave mirror. The two-dimensional scanning optical system deviates the light emitted from the light source in a first angular range. The refraction optical system deviates the light which is deviated by the two-dimensional scanning optical system in a second angular range wider than the first angular range. The concave mirror comprises a reflection surface which is disposed on at least part of a rotation symmetric surface, and reflects the light emitted from the refraction optical system. A light axis on an emission side of the refraction optical system is disposed to approximately match the rotation symmetric axis of the rotation symmetric surface. A pupil position on the refraction optical system and an emission focus of the concave mirror are disposed in positions where are optically conjugate or in the vicinity of conjugate positions. The emission focus is disposed on a position of an eye to be inspected.
Inventors:
TANABE TAKAHIRO
ISHINABE IKUO
OMORI KAZUHIRO
SATO TAKUJI
ISHINABE IKUO
OMORI KAZUHIRO
SATO TAKUJI
Application Number:
JP2015075715A
Publication Date:
November 19, 2015
Filing Date:
April 02, 2015
Export Citation:
Assignee:
TOPCON CORP
International Classes:
A61B3/10
Domestic Patent References:
| JP2014502552A | 2014-02-03 | |||
| JP2012525184A | 2012-10-22 |
Foreign References:
| US5384654A | 1995-01-24 |
Attorney, Agent or Firm:
Misawa patent office