Optical: systems and elements – Polarization without modulation – Polarization by reflection or refraction
Reexamination Certificate
2005-08-09
2005-08-09
Juba, Jr., John (Department: 2872)
Optical: systems and elements
Polarization without modulation
Polarization by reflection or refraction
C359S494010, C359S894000, C385S901000, C362S019000, C362S551000
Reexamination Certificate
active
06927910
ABSTRACT:
An integrator and a display apparatus using the same simplify the structure of an optical system and minimize optical loss. The integrator homogenizes, polarizes and recaptures incident lights. The optical loss can be reduced by using a color drum and a color wheel engaged with the integrator. In order to minimize the optical loss, a polarization conversion device where a color bar filter or color switch is directly adhered to an integrator is used. The polarization conversion device can be applied to a projector for embodying small images into large ones.
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Fleshner & Kim LLP
Jr. John Juba
LG Electronics Inc.
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