Homogenizer for collimated light controlled high angle scatter

Details Homogenizer for collimated light controlled high angle scatter Homogenizer for collimated light controlled high angle scatter

2006-09-12

2006-09-12

Lee, John D. (Department: 2874)

Optical waveguides

Planar optical waveguide

C385S146000, C385S147000, C385S901000

Reexamination Certificate

active

07106936

ABSTRACT:
A homogenizer for collimated light limits the angular distribution of the light by passing the light through a mild diffuser followed by a slab light guide which has top and bottom surfaces covered with optical constraining layers and optical absorbing layers where the optical absorbing layer has a higher refractive index than the optical constraining layer and the optical constraining layer has a lower refractive index than the slab light guide.

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