| 摘要 |
PROBLEM TO BE SOLVED: To realize operation with good focusing accuracy even when luminous flux for focus detection is vignetted in a pupil division phase difference type focus detector. SOLUTION: The conversion coefficient between the deviation of two images of the luminous flux for focus detection and the divergence amount of focus (defocus amount) of a photographic optical system is obtained by calibrating. COPYRIGHT: (C)2004,JPO |
