Light diffuser with variable diffusion

Details Light diffuser with variable diffusion Light diffuser with variable diffusion

2005-01-25

2005-01-25

Cariaso, Alan (Department: 2875)

Illumination

Light modifier

Refractor

C362S026000, C362S355000, C362S561000, C359S599000

Reexamination Certificate

active

06846098

ABSTRACT:
A light diffuser comprises a film bearing a macro diffusion efficiency variation in which the efficiency variation is greater than 5% between two locations that are separated by at least 2 cm where the diffuser comprises a base and a plurality of convex or concave complex lenses on the surface of the base.

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Cheryl J. Kaminsky, et al, “Light Diffuser with Colored Variable Diffusion”, USSN 10/147,659, (D-84407) filed May 16, 2002.
C. J. Kaminsky, et al., “Increased Contrast Overhead Projection Films”, USSN 10/279,599, (D-84928) filed Oct. 24, 2002.
C. J. Kaminsky, et al., “Reflection Media for Scannable Information System”, USSN 10/279,584, (D-84929) filed Oct. 24, 2002.
R. P. Bourdelais, et al., “Light Management Film with Colorant Receiving Layer”, USSN 10/279,557, (D-84987) filed Oct. 24, 2002.

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