C. G. Stojanoff, Jochen Schulat, Michael Eich
Oct 11, 1999
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2
Influential Citations
13
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Journal
Journal name not available for this finding
Abstract
The objective of this research program is the development of the technology for the industrial fabrication of large format holographic optical elements (HOEs) with predetermined spectral characteristics and angular selectivity. HOEs of this type are used in a variety of technical applications, such as: holographic concentrators for photo-voltaic energy conversion and solar photo- chemistry or as integrated holographic stacks compromising several holograms operating in different ranges of the solar spectrum for daylighting, glazing and shading in buildings. The latter are required for the effective control of the transmission of solar radiation through the windows or the glass curtain wall envelopes of buildings. The HOEs (reflective or transmissive) are recorded in dichromated gelatin layers deposited on glass or plastic substrates. This material and the corresponding thermochemical development process facilitate the achievement of bandwidths, spectral ranges and angular selectivity that match accurately the design spectral and geometrical properties of a particular application.