Backlit liquid crystal display with integral collimating, refrac

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

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359 49, 362 26, 362 27, 362 31, 385901, G02F 11335, G01D 1128, F21V 704

Patent

active

054792754

ABSTRACT:
An improved NVG compatible day
ight backlighting assembly for a color liquid crystal display includes a daytime high intensity light source, an edge-mounted nighttime low intensity light source, and an integral collimating/reflecting/image splitting lens which collimates and image splits the light emitted from the high intensity daytime light source, and reflects upward the low intensity light rays emanating from the low intensity edge-mounted light source.

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