Code information recording device on film

Abstract

Abstract PURPOSE:To sufficiently utilize the three primary colors (blue, green and red) recording capability of a color film and to provide the information volume of three times to a fine single code information by recording three kinds of information codes formed on the basis of light emission of a light source on a color photosensitive material as one superposed pattern. CONSTITUTION:The light sources 22-24 consisting of three light emitting diodes having the center light emission wavelengths of blue, green and read are arranged on the same base 25 in a line and controlled by respective light emission control signals S1-S3 to form an image on a color film through a phase diffraction grating 26 and an image formation lens 27 arranged so as to form a contracted image. A visual field frame 29 having an aperture 28 is arranged immediately before the color film 21. The grating 26 has many grating lens 26a as on-way diffusing means, and when light A is made incident, an image formed by superposing three color light source images. The size of the image offset in the vertical direction is determined by the visual field frame 29.

Inventors

• 👤 Susumu Matsumura
• 👤 進 松村
• 👤 Hiroshi Omura
• 👤 大村　宏志
• 👤 Hiroshi Sumio
• 👤 弘 角尾

Bibliographic Details