Camera for photographing of photoengraving manuscript

Abstract

Abstract PURPOSE: To perform the adjustment of the gradation and color tone of the subject images accurately by disposing a strobe lamp, light diffusion plate, light quantity adjusting material, etc. in a shield box thereby constituting an object information photographing mechanism. CONSTITUTION: A strobe light emitting body 5 which operates in synchronization with an ordinary photographing mechanism 1, a strobe lamp 6 which emits flash by the signal from the strobe light emitting body 5, a light diffusing plate 8 and a neutral density filter 9 as a light quantity adjusting means mounted to a holding frame 10 are disposed in a shield box body 3 formed with optical paths 4 therein to constitute an object information photographing mechanism 2. If with this arrangement a shutter button is pushed, the subject in photographed by an ordinary means in an ordinary photographing mechanism 1 and at the same time the strobe light emitting body 5 operates and the flash light emitted from the strobe lamp 6 is attenuated according to the sensitivity of the film 7 used by the neutral density filter 9, after which it is diffused and averaged by the diffusion plate 8 and arrives at the film 7, thus always fixed exposure is given to the grey scale, color batch irrespective of external conditions and always the same photographing results are surely obtained. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Takashi Numakura
• 👤 Kunio Okamoto
• 👤 Yoichi Yoshida
• 👤 Furanku Mooritsutsu Piitaa

Bibliographic Details