| 摘要 |
PROBLEM TO BE SOLVED: To obtain a prism capable of taking light in a condensing lens for photometry as efficiently as possible. SOLUTION: A plane parallel plate 22 is stuck to the back surface of a pentagonal prism 20. The surface of the plate 22 is a 1st light emitting surface 22 opposed to the ocular 12a of a finder 12. The upper part of the prism 20 than the plate 22 is a 2nd light emitting surface 23 opposed to the condensing lens 15 of an optical system for photometry. Namely, the 1st emitting surface 22 is projected from the 2nd emitting surface. |
