Optical element, polarizing element, lighting device, and...

Details Optical element, polarizing element, lighting device, and... Optical element, polarizing element, lighting device, and...

2004-03-19

2009-02-17

Shafer, Ricky D (Department: 2872)

Optical: systems and elements

Polarization without modulation

Depolarization

C359S490020, C359S506000, C349S096000, C349S098000, C349S118000, C362S019000

Reexamination Certificate

active

07492516

ABSTRACT:
An optical element of the invention comprises at least two laminated layers of reflective polarizer; and at least one retardation layer for changing polarization properties laminated between the reflective polarizers, the combination of the layers being designed so as to provide a incident-light transmittance depending on an incident angle of an incident light and designed such that a shielded light is not absorbed but reflected. The optical element can effectively shield transmitted lights with respect to obliquely incident lights and can control coloring.

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International Preliminary Report on Patentability of corresponding International application No. PCT/JP2004/003716 mailed Mar. 9, 2006.

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