Mirror assembly

  • US 5,481,409 A
  • Filed: 04/15/1993
  • Issued: 01/02/1996
  • Est. Priority Date: 02/20/1990
  • Status: Expired due to Term
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First Claim
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1. A mirror assembly comprising:

  • an enclosure having an aperture;

    a dichroic mirror borne by the enclosure and substantially occluding the aperture and wherein the dichroic mirror is operable to selectively pass a predetermined narrow band of electromagnetic radiation which does not exceed 150 nanometers in width, and reflect a broad spectral band of visible light; and

    means borne by the enclosure for receiving electromagnetic radiation in the predetermined narrow spectral band of electromagnetic radiation passed by the dichroic mirror, and wherein the preponderance of the electromagnetic radiation detected by the receiving means lies within the same 150 nanometer wide band of electromagnetic radiation which is passed by the dichroic mirror, and wherein the dichroic mirror further has a luminous reflectance of greater than 50% while simultaneous passing at least 60% of the predetermined narrow band of electromagnetic radiation.

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