DEVICE FOR ACQUIRING DISTANCE INFORMATION, IMAGING DIVICE, AND STRUCTURED APERTURE UNIT

摘要

PROBLEM TO BE SOLVED: To solve the problem in which fixation to a definite shape of a structured aperture causes a depth range or the like capable of being measured for a scene to be fixed.

SOLUTION: A device for acquiring distance information comprises: light receiving elements for separating incident subject beam of light into a plurality of wavelength ranges and detecting the beam; an optical system for guiding the subject beam of light to the light receiving elements; a structured aperture including a first filter area transmitting a first wavelength range included in one of the plurality of wavelength ranges and a second filter area transmitting a second wavelength range included in one of the plurality of wavelength ranges and different from the first wavelength range, in positions which are respectively eccentric to an optical axis of the optical system; and a transmission area changing mechanism for changing dimensions of an area transmitting the subject beam of light by partially shading each of the first filter area and the second filter area.

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