Patent · US Expired

Reflective liquid crystal modulator based printing system

US6215547A · kind A · utility

57Cited by
29References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 19, 1998
Grant dateApr 10, 2001
Priority date
Expiry dateNov 19, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B27/283
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An apparatus and method of printing two-dimensional swaths of area onto a photosensitive media uses at least one reflective liquid crystal spatial light modulator. In the apparatus and method, illumination optics receive light from a light source and image the light at a polarization beamsplitter element. The polarization beamsplitter element images one polarization state of light at the spatial light modulator to create an essentially telecentric illumination at the spatial light modulator.

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