Apparatus of irradiating biological specimens

  • US 5,395,591 A
  • Filed: 12/30/1992
  • Issued: 03/07/1995
  • Est. Priority Date: 05/02/1988
  • Status: Expired due to Term
First Claim
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1. Apparatus for exposing a polynucleotide specimen to UV radiation, comprisinga UV-opaque chamber defining a region into which a substrate comprising a polynucleotide specimen can be placed;

  • a UV lamp fixture disposed inside said chamber;

    a UV sensor disposed at a fixed position inside said chamber;

    a first circuit coupled to said sensor capable of indicating a total UV dose received at said region; and

    a second circuit coupled to said first circuit and to said lamp fixture, capable of de-energizing said lamp fixture;

    wherein said second circuit comprises (1) a first memory storing a first value corresponding to a predetermined total UV dose, and (2) a second memory storing a second value corresponding to a total UV dose which may be selected by an operator of the apparatus;

    wherein said first memory retains a value corresponding to a total UV dose between about 1.0 kJ/m2 and about 2.0 kJ/m2.

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