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Abstract

An optical tomographic imaging apparatus acquires tomographic images of an object to be examined; where the images are based on multiplexed reference light and return light returned from the object irradiated by measurement light via a scanning unit. The apparatus includes a splitting unit to split light irradiated from a light source into the measurement light and the reference light, and a focusing unit disposed on the optical path of the measurement light between the splitting unit and scanning unit. A primary magnification of the optical system on the optical path of the measurement light or the observation light path, and a numerical aperture of the light source irradiating the measurement light, are configured such that a maximum inclination of light rays included in the light flux of the measurement light is maintained within ±2 degrees of inclination with respect to the optical axis of the optical path.

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First Claim