Combined headlamp and climate control sensor having a light diffuser and a light modulator

  • US 5,416,318 A
  • Filed: 04/07/1993
  • Issued: 05/16/1995
  • Est. Priority Date: 10/03/1991
  • Status: Expired due to Term
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First Claim
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1. A photosensor arrangement for producing an electrical signal responsive to an input light, the photosensor arrangement comprising:

  • light diffuser means having a diffuser input for receiving the input light and a diffuser output for producing a diffused output light which is scattered in many directions unrelated to a direction of incidence of the input light, said light diffuser means having a predetermined spectral characteristic whereby the diffuser output light corresponds to the input light modified in accordance with the predetermined diffuser spectral characteristic;

    light sensor means having a sensor light input for receiving the diffused output light and an output terminal for providing an output electrical signal responsive to said diffused output light, said light sensor means having a predetermined sensor spectral characteristic whereby the output electrical signal is representative of a response characteristic applied to the input light which corresponds to that of a human eye; and

    light modulator means arranged in the vicinity of said diffuser input of said light diffuser for determining a position-responsive sensitivity characteristic of the photosensor arrangement, whereby said output electrical signal is responsive to the position of a source of the input light.

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