| 摘要 |
PROBLEM TO BE SOLVED: To provide a focus detection plate for a finder which is bright, easily focused, and has high focus detection precision. SOLUTION: The focus detection plate is constituted on the focus surface of the focus detection plate so that a microlens group with a small curvature is disposed on the region nearly equal to, for example, a range finding point display part disposed on the finder center part, and that a microlens group with a large curvature is disposed on the surrounding region other than the range of the microlens group with a small curvature. COPYRIGHT: (C)2006,JPO&NCIPI |
