A polarized light source includes a diffuse light source and a reflective polarizing element placed proximate thereto. The reflective polarizing element transmits light of a desired polarization and reflects light of another polarization back into the diffuse source where it is randomized. Some of the initially reflected light is thus converted into the desired polarization and is transmitted through the reflective polarizing element. This process continues, and the repeated reflections and subsequent randomization of light of the undesired polarization increase the amount of light of the desired polarization that is emitted by the polarized light source.
申请公布号
CA2187177(A1)
申请公布日期
1995.10.19
申请号
CA19952187177
申请日期
1995.04.06
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
WORTMAN, DAVID L.;GARDINER, MARK E.;OUDERKIRK, ANDREW J.;JONZA, JAMES M.;WEBER, MICHAEL F.