| 摘要 |
PROBLEM TO BE SOLVED: To provide a configuration of a clock generation unit suitable for comprehensively obtaining tomographic images in a desired depth range of a fundus oculus when a wide range of the fundus oculus is scanned in one pass.SOLUTION: An SS-OCT apparatus is configured as an interferometer in which a light path through which a portion of the light emitted from a light source unit pass is branched into a first light path and a second light path with the length different from the first light path. The apparatus comprises: a clock generation unit for generating a clock on which a conversion unit samples an analog signal; and a tomographic image acquisition unit for capturing a tomographic image of a fundus oculus on the basis of a digital signal which is converted from the sampled analog signal by the conversion unit on the generated clock. A scan unit is configured such that the angle at which irradiation light is scanned in a fundus oculus is 47 degrees or more in terms of the value in the air, and the tomographic image acquisition unit is configured such that tomographic images of a fundus oculus with 4.0 mm or more distant in a depth range in an eyeball are captured.SELECTED DRAWING: Figure 6 |
