LENS ADAPTER

摘要

PROBLEM TO BE SOLVED: To set base length to human being's average pupil distance while influence is not put on imaging performance without changing structure of an imaging lens and a camera housing.

SOLUTION: The first lens adapter 42 is attached between the imaging lens 10 and the camera housing 20. First and second cameras whose camera housing width is d are juxtaposed, and the base lengthΔis set to be shorter than their center-to-center distanceδ. Luminous flux emitted from the imaging lens is made incident on a first reflection prism 32, and a real image of a subject is formed at a position shown by F1 behind the first reflection prism. The real image of the subject is transmitted to a light receiving surface of a photodetector 18 through a filter group 14 and a three-color separation optical system 16 by a relay lens 38 through a second reflection prism 36.

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