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Illuminated indicator gauge

  • US 4,004,546 A
  • Filed: 05/02/1975
  • Issued: 01/25/1977
  • Est. Priority Date: 05/02/1975
  • Status: Expired due to Term
First Claim
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1. In an illuminated indicator instrument, the combination of a casing having an open end closed by a viewing window, a translucent dial spaced inwardly of said window, said dial having indicia thereon, a movement within said casing inwardly of said dial and a pointer between said dial and window operatively connected to said movement, a light source within said casing toward the rear thereof and laterally of said movement, and a light conducting prism between said movement and said dial having a beveled surface at an upper edge thereof spaced from the edge of said dial to receive light directly from said light source, said beveled surface reflecting light transversely therethrough by said beveled surface and a portion of said dial receiving light directly from said source and passing light directly therethrough to illuminate the pointer and dial.

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