LED symbol signal
First Claim
Patent Images
1. ) A LED symbol signal, comprising:
- at least one LED, mounted on a printed circuit board, arranged in a housing with an open end;
the open end covered by a collimating element, with at least one optical segment, a mask with at least one hole defining the symbol, and a cover.
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Abstract
A LED symbol signal with LEDs arrayed to correspond to a desired symbol. Light from the LEDs is directed onto corresponding optical segments of a multiple collimating zone element and directed into a forward direction/distribution. A mask defines the desired symbol. The optical segments and or a diffusion surface on the cover or multiple collimating zone element(s) diffuses the display aspect, obscuring the individual LEDs. A diameter of the optical features of the diffusion surface is smaller than a diameter of the optical segments. The LED symbol signal may be configured for retrofitting into an incandescent lamp signal housing.
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Citations
32 Claims
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1. ) A LED symbol signal, comprising:
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at least one LED, mounted on a printed circuit board, arranged in a housing with an open end;
the open end covered bya collimating element, with at least one optical segment, a mask with at least one hole defining the symbol, and a cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 27, 28, 29, 30, 31, 32)
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24. ) A LED symbol signal, comprising:
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at least one LED, mounted in at least one reflector, on a printed circuit board having power supply components thereon, arranged in a housing with an open end, the open end covered by a collimating element with a plurality of optical segments, a mask having at least one hole defining the symbol, and a cover, having a diffusion surface in areas corresponding to the at least one hole, which closes the housing.
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25. ) A LED symbol signal, comprising:
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at least one LED, mounted on a printed circuit board, arranged in a housing with an open end, the open end covered by a collimating element, with at least one optical segment arranged to direct a light output from the at least one LED, a mask with at least one hole defining the symbol, and a cover having an inner face with a diffusion surface, the cover sealing the open end of the housing; and
the mask has a thickness which substantially fills a space between the collimating element and the cover.
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26. ) A LED symbol signal, comprising:
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at least one LED, mounted on a printed circuit board arranged in a housing with an open end, the open end covered by a cover with a mask and optical segments corresponding to the symbol.
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Specification