High efficiency, broad bandwidth, volume holographic element for

Details High efficiency, broad bandwidth, volume holographic element for High efficiency, broad bandwidth, volume holographic element for

1994-06-17

1996-02-13

Lerner, Martin

Optical: systems and elements

Holographic system or element

Having particular recording medium

359 22, 359 25, 430 1, 430 2, G02B 532, G03H 104, G03H 130

Patent

active

054915694

ABSTRACT:
A high efficiency, broad bandwidth, volume holographic element for diffraction windows. This holographic element is fabricated so that it can passively track and diffract solar radiation throughout the course of a day. Such a hologram can effectively illuminate the interior of a building or room with sunlight. This invention can reduce both lighting costs and the cooling costs associated with generating artificial light.

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