大画幅摄影机可旋转式取景器研究

RESEARCH OF REVOLUTIONAL VIEW FINDER FOR LARGE FRAME CINE CAMERA

叙述用于大画幅(70m m )特种电影摄影机可旋转式取景器光学系统。该取景器采用别汉棱镜,使取景器在360°不同位置上观察到的景物像始终是正立的。给出光学系统的正像原理、结构特点及设计结果。

An optical system of revolutional view finder for large frame(70mm) cine camera is discussed.The view finder uses a“Pechan”prism.In this prper the erecting principle constructure features and design results of the optical system are gived.