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Dual photoelectric cell assembly

  • US 4,475,036 A
  • Filed: 08/24/1981
  • Issued: 10/02/1984
  • Est. Priority Date: 08/24/1981
  • Status: Expired due to Fees
First Claim
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1. A dual photoelectric cell assembly comprising, in combination, a housing defining a chamber and having at least two walls thereof formed of a light transmitting material, a unitary photoelectric cell having first and second independent light sensing areas formed on the same substrate and disposed in the chamber defined by said housing, light reflecting means disposed in the chamber defined by said housing and effective to reflect light emanating from a first direction only onto said first light sensing area and to reflect light emanating from a second direction generally opposite said first direction only onto said second light sensing area, and means capable of transmitting light and encapsulating said cell and said light reflecting means in the chamber defined by said housing.

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