Light-redirecting optical structures

Details Light-redirecting optical structures Light-redirecting optical structures

G - Physics

02

B

G02B 5/04 (2006.01) G02B 6/00 (2006.01)

Patent

CA 2523493

A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an elevated portion to space the peaks away from adjacent optical sheets, surfaces, films, substrates, or other layers to minimize wet-out, Newton~s rings, abrasions, moiré fringes, or other undesirable optical conditions. In other embodiments, an optical film is also provided that includes a first plurality of microstructures having a base, a first side, and a second side, and a second plurality of microstructures having a base, a first side, and a second side, the first side including a first planar surface, and the second side including a second planar surface and a third planar surface.

L'invention concerne une pluralité de microstructures, chaque microstructure possédant au moins un premier côté et au moins un second côté qui se rejoignent au niveau d'un pic. Au moins certains pics peuvent comprendre une partie élevée afin d'espacer les pics des feuilles optiques adjacentes, des surfaces, des films, des substrats ou d'autres couches afin de minimiser l'imprégnation, les anneaux de Newton, les abrasions, les franges de moiré, ou d'autres conditions optiques indésirables. D'autres modes de réalisation comportent un film optique qui comprend une pluralité de microstructures possédant une base, un premier côté, et un second côté, et une seconde pluralité de microstructures possédant une base, un premier côté, et un second côté, le premier côté incluant une première surface plane, et le second côté incluant une deuxième surface plane et une troisième surface plane.

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