Light control film

Details Light control film Light control film

2008-01-22

2008-01-22

Husar, Stephen F (Department: 2875)

Illumination

Light modifier

Refractor

C362S606000, C362S607000, C362S618000, C362S619000

Reexamination Certificate

active

10525722

ABSTRACT:
A light control film having a refractive index n and an uneven, irregular surface pattern provides a reasonable level of light diffusion without a glare problem provided, for any cross-section perpendicular to the base plane of the film, the average of absolute values of slope θaveof a curve along the edge of the cross-section contoured by the rough surface pattern (profile curve) is at least 78-34ndegrees and no higher than 118-34ndegrees, or the average of absolute values of slope θaveof a profile curve to the length L1 of a straight line defined by the intersection of the base plane and the cross-section satisfies the following formula (3) or (4) for substantially all cross-sections.in-line-formulae description="In-line Formulae" end="lead"?θave÷Lr×n2≧40  (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?50≦θave×Lr×n2≦135   (4)in-line-formulae description="In-line Formulae" end="tail"? 

REFERENCES:
patent: 6505959 (2003-01-01), Masaki et al.
patent: 6608722 (2003-08-01), Cowan et al.
patent: 6846098 (2005-01-01), Bourdelais et al.
patent: 6898012 (2005-05-01), Kaminsky et al.

Affiliated with

Also associated with

Rating

Light control film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light control film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light control film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3933731