| 摘要 |
PURPOSE:To utilize an inexpensive general camera as an optical measuring instrument by providing a photoelectric converter at the image forming position of the rear cover of the general camera, and leading out an electrical signal proportional to an optical image formed on the photoelectric converter. CONSTITUTION:The general single-lens reflex camera 1 is used and the image sensor 3 is fixed inside of its rear cover. The sensor 3 is provided where light passed through the lens of the camera 1 forms an image, i.e. at the position of a film press plate. Then, a body 10 to be measured is put in focus in the camera 1 firstly. Then, the shutter is released and a signal processor 9 makes a fine adjustment to focus the image and also to adjust the aperture. Thus, light from the body 10 to be measured is analyzed to use the inexpensive general camera 1 as the optical measuring instrument. |
