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Electro-optical printing system

  • US 3,952,311 A
  • Filed: 04/24/1972
  • Issued: 04/20/1976
  • Est. Priority Date: 04/24/1972
  • Status: Expired due to Term
First Claim
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1. An electro-optical printing apparatus for printing alpha-numeric characters on a surface of a photosensitive recording material, said apparatus comprising:

  • a plurality of radiation emitters each being capable of emitting radiation at wavelengths to which said surface is sensitive, said emitters being disposed in an array along a substantially straight line, said array being a plurality of rows of said radiation emitters;

    means for moving said recording material with its surface adjacent said array, and at a substantially constant speed relative to said array, and;

    means for selectively activating each of the said emitters for predetermined periods of time, andmeans for coordinating the predetermined periods of time in which each of the said plurality of emitters are activated with said constant relative speed of said recording material so that the radiation emitted by said emitters will be recorded on selected ares of said recording surface in the form of an alpha-numeric image,each of the said emitters being positioned to irradiate a different area of said recording surface, the different areas of said surface irradiated by each of the said emitters being arranged in an overlapping relationship with one another.

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