ILLUMINATED KEYPAD
First Claim
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1. An illuminated keypad comprising:
- an outer layer comprising a first portion and a second portion, wherein said first portion and said second portion are depressable, said outer layer comprising an outer layer first side and an outer layer second side;
a first light guide having a first light guide first surface and a first light guide second surface, wherein said first light guide first surface is located adjacent said outer layer second side proximate said first portion;
a second light guide having a second light guide first surface and a second light guide second surface, wherein said second light guide first surface is located adjacent said outer layer second side proximate said second portion;
a substrate extending at least between said first light guide second side and said second light guide second side;
a first switch attached to said substrate and located proximate said first light guide second surface;
a second switch attached to said substrate and located proximate said second light guide second surface;
a space between said first light guide and said second light guide; and
a compressible material located in said space in the light paths between said first light guide and said second light guide.
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Accused Products
Abstract
Illuminated keypads are disclosed herein. One embodiment includes first and second light guides having a compressible material located therebetween. The material blocks light from traveling between the light guides.
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Citations
19 Claims
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1. An illuminated keypad comprising:
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an outer layer comprising a first portion and a second portion, wherein said first portion and said second portion are depressable, said outer layer comprising an outer layer first side and an outer layer second side; a first light guide having a first light guide first surface and a first light guide second surface, wherein said first light guide first surface is located adjacent said outer layer second side proximate said first portion; a second light guide having a second light guide first surface and a second light guide second surface, wherein said second light guide first surface is located adjacent said outer layer second side proximate said second portion; a substrate extending at least between said first light guide second side and said second light guide second side; a first switch attached to said substrate and located proximate said first light guide second surface; a second switch attached to said substrate and located proximate said second light guide second surface; a space between said first light guide and said second light guide; and a compressible material located in said space in the light paths between said first light guide and said second light guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An illuminated keypad comprising:
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an outer layer comprising a first portion and a second portion, wherein said first portion and said second portion are depressable, said outer layer comprising an outer layer first side and an outer layer second side; a first light guide having a first light guide first surface and a first light guide second surface, wherein said first light guide first surface is located adjacent said outer layer second side proximate said first portion; a first protrusion extending from said outer layer second side proximate said first portion; a second light guide having a second light guide first surface and a second light guide second surface, wherein said second light guide first surface is located adjacent said outer layer second side proximate said second portion; a second protrusion extending from said outer layer second side proximate said second portion; a light guide holder extending between at least said first protrusion and said second protrusion; a substrate extending at least between said first light guide second side and said second light guide second side; a first switch attached to said substrate and located proximate said first light guide second surface; a second switch attached to said substrate and located proximate said second light guide second surface; a space between said first light guide and said second light guide; and a compressible material located in said space in the light paths between said first light guide and said second light guide. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification