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Code mark reader

  • US 5,463,213 A
  • Filed: 05/03/1994
  • Issued: 10/31/1995
  • Est. Priority Date: 05/03/1994
  • Status: Expired due to Fees
First Claim
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1. A code mark reader comprising:

  • a stage on which an object to be read can be placed,an infrared camera disposed in a focus adjustable manner above said stage, andtwo laser beam irradiators disposed on opposite sides of said camera and facing downwards toward said stage in an oblique manner such that one laser beam provides a first spot of light on said stage elongated in a first direction and the other laser beam simultaneously provides a second spot of light on said stage elongated in a second direction substantially perpendicular to said first direction and intersecting said first spot of light in a criss-cross manner at a position coincidental with a focus point of said camera on said stage.

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