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INDICIA READING TERMINAL INCLUDING FOCUS ELEMENT WITH EXPANDED RANGE OF FOCUS DISTANCES

  • US 20110089245A1
  • Filed: 10/20/2009
  • Published: 04/21/2011
  • Est. Priority Date: 10/20/2009
  • Status: Active Grant
First Claim
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1. An optical system comprising:

  • a first optical element having an optical axis and a focal length, the first optical element comprising a deformable element; and

    a second optical element aligned with the optical axis, the second optical element having a plurality of positions along the optical axis, the positions comprising a first position, and a second position that is different than the first position,wherein the second position on the optical axis locates an end of the second optical element in communication with the deformable element so as to cause the deformable element to deform in a manner that changes the focal length from a first focal length to a second focal length that is different from the first focal length.

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