| 摘要 |
PROBLEM TO BE SOLVED: To pick up both of stereo and monocular photographs despite a simple structure by providing a stereophotographic diaphragm in the adjacent to the pupil of a photographic optical system and providing a columnar lens array in the adjacent to an image surface of the photographic optical system. SOLUTION: In stereophotographing, a beam LL from a light diaphragm and a beam LR from a right diaphragm of a stereo diaphragm 10s are focused into fundus images Er' on a columnar lens array 24 surface and reach image pick-up element factors adjoining to an image pick-up element 31 of an image pick-up means 29 respectively. The columnar lens array 24 having a pitch width corresponding to the two image pick-up element factors decides the focal distance so that the stereo diaphragm 10s is focused into the pitch width and the focused image surface of the columnar lens array 24 is focused into the image pick-up element 31 by the relay lens 27. On the other hand, in the monocular photographing, a single diaphragm plate 10m is inserted into an optical path 02 and a columnar lens array 24 is retreated from an optical path 04 so that the horizontal definition of the image is improved and then the image is picked up. |
