Document validator subassembly
First Claim
Patent Images
1. A subassembly for a document validator comprising:
- a housing;
a light pipe core having a top diffusing surface, seated in the housing;
a light control layer associated with the top diffusing surface; and
at least one light source coupled to the housing.
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Accused Products
Abstract
A subassembly for a document validator. In an implementation, the subassembly includes a housing, a light pipe core seated in the housing, a light control layer and at least one light source. The apparatus may also include a prism structure layer between a top diffusing surface and the light control structure. The housing may also include at least one input light port on at least one end of the light pipe core.
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Citations
39 Claims
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1. A subassembly for a document validator comprising:
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a housing;
a light pipe core having a top diffusing surface, seated in the housing;
a light control layer associated with the top diffusing surface; and
at least one light source coupled to the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A document sensing arrangement comprising:
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a light source subassembly for positioning on a first side of a document passageway, the subassembly including a housing, a light pipe core seated in the housing and having a top diffusing surface, a light control layer associated with the top diffusing surface, and at least one light source coupled to the housing; and
at least one light sensor for positioning on a second side of the document passageway across from the light source subassembly. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for illuminating a document in a document passageway comprising:
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providing a subassembly that includes a reflective housing, a light pipe core having a top diffusing surface, a light control layer and at least one light source; and
illuminating the document with a substantially rectangular beam of substantially homogenous light. - View Dependent Claims (29, 30, 31)
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32. A method of fabricating a light bar structure for a document validator subassembly comprising:
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fabricating a light pipe core to provide a light output across a document passageway;
fabricating a diffusing structure onto an output side of the core; and
applying a light control film to the diffusing structure. - View Dependent Claims (33, 34, 35)
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36. A method of fabricating a light bar structure comprising:
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fabricating a light pipe core to provide a light output across a document passageway;
fabricating a diffusing structure layer; and
fabricating a louver structure layer onto an output side of the core. - View Dependent Claims (37, 38, 39)
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Specification