Patent · US Expired

Document validator subassembly

US6994203B2 · kind B2 · utility

2Cited by
23References
39Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 2, 2002
Grant dateFeb 7, 2006
Priority date
Expiry dateAug 13, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG07D7/121
  • WIPO fieldControl
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.