OPHTHALMOLOGIC APPARATUS

摘要

The present invention relates to an ophthalmologic apparatus for acquiring depth information of an eye including a light source; a measurement optical path guiding measurement light; a reference optical path generating reference light; and a detector generating a detection signal containing an interference signal of the measurement light via the measurement optical path and the reference light coming from the reference optical path; an actuator driving at least part of the interference optical system to vary an optical path length difference between the measurement optical path and the reference optical path; a standard optical system including optical members disposed corresponding to the optical path length differences in one of the measurement optical path and the reference optical path. Optical members guide part of the measurement light or the reference light to the detector.

主权项

1. An ophthalmologic apparatus comprising:
an interference optical system including:
a light source to emit light;a measurement optical path configured to guide, to an eye, measurement light which is generated based on the light emitted from the light source;a reference optical path configured to generate reference light which is generated based on the light emitted from the light source; anda detector configured to generate a detection signal containing an interference signal of the measurement light guided to the eye via the measurement optical path and the reference light coming from the reference optical path; an actuator configured to drive at least part of the interference optical system to vary an optical path length difference between the measurement optical path and the reference optical path; a standard optical system including a plurality of optical members disposed corresponding to the optical path length differences produced by driving the actuator in one of the measurement optical path and the reference optical path, the plurality of optical members being configured to guide part of the measurement light or the reference light to the detector; and a processor configured to: acquire first depth information including a first interference signal of the measurement light coming from a first part of the eye and the reference light by processing the detection signal received from the detector where the optical path length difference is a first value; acquire second depth information including a second interference signal of the measurement light coming from the second part of the eye and the reference light by processing the detection signal received from the detector where the optical path length difference is a second value different from the first value, set a positional relationship between the first depth information and the second depth information based on standard interference signal which is an interference signal of the lights coming from the optical members.