OPTICAL DEVICE, OPTICAL DEVICE HOLDING MECHANISM, OPTICAL SYSTEM AND OPTICAL EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To solve the problem that it is difficult to excellently restrain the occurrence of the eccentric aberration of an optical device in 'throw-in system' assembly. SOLUTION: The shape of the butting surface part of the optical device in an inserting direction to the holding lens barrel and the shape of the receiving surface part of the holding lens barrel which receives the butting of the optical device are set so that proper amount of inclination eccentricity in accordance with the parallel eccentric amount of the optical device may be caused in a direction where the eccentric aberration caused by parallel eccentricity is reduced (cancelled) when the parallel eccentricity is caused in the optical device because of the difference of fitting diameter between the inside diameter parts of the holding lens barrels H1 to H4 and the outside diameter parts of the optical devices G1 to G10.