COMPONENTS AND METHODS FOR MANUFACTURING HOLLOW INTEGRATORS AND ANGLE CONVERTERS

Title:

COMPONENTS AND METHODS FOR MANUFACTURING HOLLOW INTEGRATORS AND ANGLE CONVERTERS

Document Type and Number:

WIPO Patent Application WO2003081294

Kind Code:

A3

Abstract:

The present invention describes an "L"-shaped sub-component (12) for a hollow reflective tube (8) used as an integrator and/or angle converter for an illumination system. Furthermore, this invention details methods of manufacturing such hollow reflective tubes (8) comprising (1) the steps of forming "L"-shaped sub-components substrates with or without self-alignment (11) and/or mounting features, (2) applying a reflective coating (40, 76) to the inside of said sub-components (3) and assembling said sub-components into hollow tubes (8). Preferably both sides of the "L"-shaped sub-components (12) have identical spectral and angular dependent coating performance. A particularly suitable method for manufacturing these sub-components (12) substrates is molding them in plastic and overcoating them with a base coating layer to enhance their specular reflectivity. One of the preferred methods of applying a highly reflective, environmentally stable enhanced Ag multi-layer stack is an ion assisted e-beam deposition process with the substrates oriented symmetrically towards the effective thin film material emission source. The high index layer material is preferably a metal oxide or ZnS and the low index material is preferably an oxide or a fluoride material.

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Inventors:

STROBL KARLHEINZ (US)
GASTEIGER PAUL (US)

Application Number:

PCT/US2003/008664

Publication Date:

November 06, 2003

Filing Date:

March 19, 2003

Export Citation:

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Assignee:

STROBL KARLHEINZ (US)
GASTEIGER PAUL (US)
EELE LAB LLC (US)

International Classes:

G02B1/10; G02B27/00; G02B27/09; (IPC1-7): G02B6/00; G03H1/10

Foreign References:

US6332688B1	2001-12-25
US6231199B1	2001-05-15
US5956447A	1999-09-21
US5777789A	1998-07-07
US3740112A	1973-06-19

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