FINDER OPTICAL SYSTEM WITH PHOTOMETRIC SYSTEM

摘要

PURPOSE:To secure a size for stably holding a photodetection sensor and to improve the incorporation and assembly of the fiber optical system in a finder structure body by fitting and fixing a support substrate for the photodetection sensor to the finder structure body at a lateral attitude almost parallel to the front-rear direction of th finder system. CONSTITUTION:The substrate 14 where the photodetection sensor 13 is supported is fitted and supported on the finder structure body 20 at the lateral attitude almost parallel to the front-rear direction of the finder by being positioned by engaging a dowel 20a for positioning which is projected from part of the finder structure body 20 with a dowel engagement hole 1a on the side of the substrate 14. The size of the photodetection sensor holding substrate 14 is larger in the finder front-rear direction than in the finder cross section direction, and the degree of freedom of the design is large. Consequently, the substrate 14 can be made large to held the photodetection sensor 13 and the incorporation and assembly in the finder structure body 20 are improved.