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Two-dimensional part reader having a focussing guide

  • US 6,045,047 A
  • Filed: 06/19/1998
  • Issued: 04/04/2000
  • Est. Priority Date: 01/17/1995
  • Status: Expired due to Term
First Claim
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1. A hand held optical reader comprising:

  • a housing;

    a lens assembly attached to said housing, said lens assembly having, an optical axis, and depth of field;

    an imaging assembly mounted to said housing in image receiving relationship to said lens assembly;

    a guide disposed on a front portion of said housing for establishing a distance between said lens assembly and an equipment target that is displaced a predetermined distance from a mark target, said guide having a proximal end adapted to be mounted on said housing, and a distal end adapted to contact the equipment target;

    wherein the length of said guide is such that the positioning of said distal end on said equipment target assures that said mark target is within said depth of field of said lens assembly.

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