Patent ID: 9572489
Date: 2017-02-21
CPC Classifications: A61B

Claim:
1. An ophthalmologic imaging apparatus, comprising: an illumination unit for illuminating a fundus of an eye to be inspected for observation with an infrared light; an image pickup unit for imaging the fundus of the eye to be inspected through a focus lens by using reflection light from the fundus illuminated by the infrared light; an illumination light amount control unit for controlling a light amount of the infrared light; a focus detection area determining unit for determining a focus detection area with respect to a fundus image taken by the image pickup unit; a focus detection unit for detecting a focus position of the focus lens in the determined focus detection area; a photometry unit for calculating a photometry value by using an intensity value of the determined focus detection area; and a setting unit for setting a focus mode from among (a) a manual focus mode for controlling the focus position of the focus lens in accordance with an operation by an user, and (b) an automatic focus mode for controlling the focus position of the focus lens based on a result of a detection by the focus detection unit, wherein the illumination light amount control unit controls the light amount to decrease in a case that the photometry value is higher than a reference value, and to increase in a case that the photometry value is lower than the reference value, and wherein the focus detection unit performs focus evaluation after the light amount is controlled by the illumination light amount control unit.