BACKGROUND LED arrays are typically formed using LEDs that have a polymer
encapsulant formed over an LED die and an associ ated reflector cup. The LED die itself has …

The present invention provides a method and apparatus for the production and labeling of
objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the …

A backlight that includes a front reflector and a back reflector that form a hollow light
recycling cavity including an output surface is disclosed. The backlight further includes one …

An optical imaging system including a wide-angle Cartesian polarizing beam splitter, light
valve illumination optics having an f/# § 2.5, and at least one re? ective light valve. The …

6,340,824 6,366,018 6,368,699 6,373,188 6,404,125 6,464,366 6,472,765 6,486,997
6,501,091 6,504,301 6,506,480 6,515,785 6,521,329 6,531,230 6,534,158 6,547.400 …

New constructions of multilayer optical films, laminates thereof, and cards incorporating
same are disclosed. In a card, the multilayer optical film can be sandwiched between …

(57) ABSTRACT A reflective polarizer suitable for use in a display device is disclosed
herein. The reflective polarizer comprises: a multi layer optical film comprising alternating …

An illumination system including a light source, a light guide including an output surface,
emissive material positioned between the light source and the output surface of the light …

BACKGROUND White light sources that utilize light emitting diodes (LEDs) in their
construction can have two basic configura tions. In one, referred to herein as direct emissive …

Articles including post-formed multilayer optical films with layers of at least one strain-
induced birefringent material, methods of manufacturing such articles by post-forming …