Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Patent
1995-06-07
2000-08-08
Shafer, Ricky D.
Optical: systems and elements
Extended spacing structure for optical elements
Extension of tubular element adjustable
359498, 359495, 359485, 359599, 362 19, 362257, 362260, 362296, 428212, 428421, 428480, 428483, 428522, 428523, 428910, G02B 530
Patent
active
061010324
ABSTRACT:
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 rejected 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 increases the amount of light of the desired polarization that is emitted by the polarized light source.
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Gardiner Mark E.
Jonza James M.
Ouderkirk Andrew J.
Weber Michael F.
Wortman David L.
3M Innovative Properties Company
Burtis John A.
Shafer Ricky D.
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