EXPOSURE CONTROL APPARATUS FOR PHOTOGRAPHIC CAMERAS

摘要

A lamp is positioned to face a photoconductive cell contained in an electronic shutter mechanism of a camera. This lamp is adapted to be lighted up prior to the luminescing of a flash device attached to the camera, by utilizing the synchronizing contacts. This luminescence from the lamp preliminarily irradiates the photoconductive cell to enhance its ability to respond to light. This arrangement not only will permit the lamp to be lighted up in association with the proper working condition of the flash device but also will enable the lamp to luminesce again at the end of a predetermined length of time from the luminescing of the flash device and also to be put out at the end of another predetermined length of time.