P-190: Method for Making Panels for Wedge Projection

Autor:	Timothy Andrew Large, Adrian Travis, Mark Buckingham
Rok vydání:	2007
Předmět:	Optical fiber business.product_category Materials science business.industry Float glass Thin sheet Wedge (mechanical device) law.invention Optics Cast acrylic Machining law Millimeter business
Zdroj:	SID Symposium Digest of Technical Papers. 38:907-910
ISSN:	0097-966X
DOI:	10.1889/1.2785456
Popis:	Wedge projection displays can be made economically in small quantities by machining the wedge profile on a thick sheet of cast acrylic, machining a constant thickness on a thin sheet of cast acrylic, then index-matching the two together. The resulting panels can have smoothnesses almost as good as float glass and transparencies approaching that of plastic optical fibre. When used in reverse as a camera, panels have resolutions of 4 line pairs per millimetre and contrast ratios of 200:1.
Databáze:	OpenAIRE
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