Patent Document ID: 8801180
Application ID: 12996935
Patent Status: 1

Claim One:
1. An optical image measuring device, comprising: an optical system configured to split a light from a light source into a signal light and a reference light, split an optical path of the reference light into a plurality of optical paths having different optical path lengths to split the reference light into a plurality of reference lights including a first reference light having a first optical path length provided by a first reference mirror and a second reference light having a second optical path length provided by a second reference mirror, make the plurality of reference lights propagated through the plurality of optical paths, respectively, interfere with the signal light propagated through a measured object, and generate an interference light that reflects a morphology in each of a plurality of depth positions of the measured object; a controller configured to displace positions of the first reference mirror and the second reference mirror so that an optical path length difference between the first optical path length and the second optical path length is equal to a standard value of the corneo-retinal distance; and a detector configured to detect the generated interference light based on the control by the controller to generate a first detection signal based on the first reference light and a second detection signal based on the second reference light; an image forming part configured to form a first tomographic image representing the morphology of the measured object in a first depth position based on the first detection signal and to form a second tomographic image representing the morphology of the measured object in a second depth position based on the second detection signal; and an analyzer configured to analyze the first tomographic image to determine a retinal surface region of the measured object, to analyze the second tomographic image to determine a corneal surface region of the measured object and to obtain a distance between a point on the retinal surface region of the first tomographic image and a point on the corneal surface region of the second tomographic image.