| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that left and right parallactic images are only viewed while overlaid with each other on a monitor and the same as the image of normal state even when no image signal is inputted, relating to a stereoscopic photographing lens device that drives shutters of left and light objective optical systems while synchronizing an image signal from a camera main body. SOLUTION: The stereoscopic photographing lens device comprises a optical system comprising left and right objective optical systems 103-105; a synchronous signal generating means 123 that generates a synchronous signal based on an image signal supplied from an imaging device main body 102; and a control means 120 that, based on the synchronous signal generated by the synchronous signal generating means, makes shutters 104 on the left and right objective optical systems respectively and alternately open/close, to make the imaging device main body alternately image-pickup left and right parallactic images formed through the left and right objective optical systems. The control means drives an optical means constituting the photographing optical system to make it perform alarm operation when no image signal is supplied to the synchronous signal generating means from the imaging device main body. |
