| 摘要 |
PURPOSE:To obtain a faithful image of a high resolution, by mounting the exchangeable zoom lens exclusive for close-up shooting to the TV camera with lens and then securing a back-forth movement for the camera via the front lever. CONSTITUTION:Exchangeable zoom lens 1 exclusive for close-up shooting having the 1:20-1:4 or 1:10-1:2 image ratio to sample A and a fixed shooting distance is mounted to TV camera 2 incorporating camera 4 with lens. Then camera 4 is moved back and forth by shifting back and forth catch 11a of arm 11 protruded over the front surface of casing 7, and then the focus is adjusted to sample A on stage 19. For the zooming, dial 17a is turned, and the optimum magnification ratio of zoom lens 1 is obtained via flexible wire 16a and pinion 12a. And for the diaphragm control, dial 17b is turned to obtain the optimum exposure. This pickup device incorporates illuminators 6 and 18 under mirror 5 to secure the photographing of the subject for reflection or transmission. As the lens exclusive for close-up shooting is used, the fault caused by the aberration never occurs to obtain a high- resolution image. |
