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Liquid-crystal image director for single-lens-reflex camera

  • US 5,337,106 A
  • Filed: 06/09/1993
  • Issued: 08/09/1994
  • Est. Priority Date: 06/09/1993
  • Status: Expired due to Fees
First Claim
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1. A light-directing mechanism for replacing a hinged mirror in a single-lens-reflex camera, comprising:

  • polarizing means for polarizing incident light to provide a beam of polarized incident light,polarization-rotating means for rotating the polarization of said beam of polarized light to provide an output beam from said polarization-rotating means,activating means for activating said polarization-rotating means so that said output beam from said polarization-rotating means is not rotated,a polarizing beam splitter for receiving said output beam from said polarization-rotating means and causing said output beam from said polarization-rotating means to traveling in a first direction when said output beam from said polarization-rotating means is rotated and in a second direction when said output beam from said polarization-rotating means is not rotated,first utilization means for utilizing light traveling in said first direction from said polarizing beam splitter, andsecond utilization means for utilizing light traveling in said second direction from said polarizing beam splitter.

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