| 摘要 |
<p>EXPOSURE AND CAMERA CONTROL An exposure and camera control system comprising a keyboard for providing input information relating to film parameters and camera type, a light to frequency convertor for providing signals having a frequency proportional to the intensity of light to be used in exposing the film, and a control operatively connected to the information providing keyboard and to the light to frequency convertor for determining the film exposure time and for providing signals for controlling film exposure to light and signals for controlling film transport when the exposure is complete. The control includes a microprocessor, programmable memory, and input/output interface components. A display operatively connected to the control provides visual display of information inputs to the control and of calculated quantities such as exposure time. A printer operatively connected to the control provides a hard copy record of the displayed information. A light detector operatively connected to the control includes a mirror normally positioned in the optical path for directing light to the light to frequency convertor, which mirror is moved out of the optical path before an exposure is made. Sensors in the camera being controlled provide signals to the control indicative of film travel and presence of a new film roll in the camera. The exposure and camera control has advantageous use with a microscope in apparatus for making photomicrographs.</p> |
