Patent ID: 7712667

Claim:
A device for viewing, scanning and decoding of invisible fluorescing or phosphorescing bar codes, wherein the device comprises a compact housing, the housing containing components including: i) an illumination module for emitting excitation energy at an invisible fluorescing or phosphorescing bar code, including an excitation light source, an excitation band pass filter, and a light diffuser, ii) an optical window transparent to the excitation energy and to an emission energy emitted from the excited invisible bar code, iii) a member selected from an absorptive screen that absorbs a portion of the excitation energy that has reflected inwardly from the optical window, and a retro-reflective film that returns such portion of the excitation energy back toward the optical window, iv) an imaging module including a video image sensor, a lens, and an emission band pass filter, v) a video display module including a video display with on-screen data display capability, vi) an image processing and bar code decoding microprocessor, and vii) a battery.