×

Luminescent solid state status indicator

  • US 3,873,979 A
  • Filed: 09/28/1973
  • Issued: 03/25/1975
  • Est. Priority Date: 09/28/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. A luminescent solid state status indicator characterized by:

  • at least first and second light emitting diodes mounted on a single header;

    first terminal means on said header connected to both light emitting diodes and adapted to be connected to a first terminal of a direct current energizing voltage;

    second terminal means on said header connected to at least one of the light emitting diodes and adapted to be connected to a second terminal of said direct current energizing voltage; and

    said light emitting diodes being adapted to emit light the color of which shifts as a function of relative change in magnitude of said direct current energizing voltage.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×