Color printer for photography

Abstract

Abstract PURPOSE: To enable either of negative film and reversal film to be readily printed on the same color paper by scanning the original color picture with light beams, once converting these to electric signals by measuring means and modulating the intensities of recording light beams with these electric signals. CONSTITUTION: Light beams of blue, green and red radiated from respective laser light sources 1 thru 3 are divided to those for reading and recording by half mirrors 4, 5, 6. An original color picture 10 is scanned by the light beam 7 having been synthesized as for reading and the intensities of the three color components of the light having transmitted therethrough are mesured with photocells 15 thru 17 of respective colors and are then sent to a color correcting circuit 21, thence their polarities are converted depending upon the kinds of color negative films and reversal color films by gradation correcting circuits 22 thru 24 and polarity changeover circuit 25, whereby their hues are converted to complementary colors and therefore even with the reversal color film, printing may be made on the color paper in the same manner as with color negative film. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Takashi Fukui

Bibliographic Details