Light collimating device

Details Light collimating device Light collimating device

2008-03-18

2008-03-18

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Collimating of light beam

C359S708000, C349S062000

Reexamination Certificate

active

11194360

ABSTRACT:
A collimating device and a transflector for use in a system having a backlight is disclosed herein. In one embodiment of the application, the collimating device and the transflector each include an immersing layer, a reflecting layer, and an optical element layer formed from a plurality of three-dimensional, optical elements. Each optical element is tapered such that a small area end has a horizontal plane cross-sectional area that is less than that of a wide area end. The optical elements of the collimating device are tapered towards the backlight and the optical elements of the transflector are tapered away from the backlight. The reflecting layer has apertures which correspond to the position and shape of the light input ends of the optical elements.

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