A polarization device includes a reflection-type polarization element disposed at a side to which an optical beam comes in and an absorption-type polarization element disposed behind the reflection-type polarization element, wherein the reflection-type polarization element and the absorption-type polarization...http://www.google.es/patents/US6246506?utm_source=gb-gplus-sharePatente US6246506 - Optical display device having a reflection-type polarizer
Optical display device having a reflection-type polarizer
