Aluminum reflector with composite reflectivity-enhancing surface

Details Aluminum reflector with composite reflectivity-enhancing surface Aluminum reflector with composite reflectivity-enhancing surface

1999-05-27

2000-05-23

Henry, Jon

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

359584, 359884, G02B 508, G02B 528, G02B 111, F21V 722

Patent

active

060671890

ABSTRACT:
Reflector having a composite reflectivity-enhancing layer as reflecting surface layer on a reflector body where the said composite layer has an outer layer facing the radiation to be reflected, the HI-layer, with a refractive index n.sub.2, and, between the reflector body and the outer layer, an LI-layer with a refractive index n.sub.1 which is smaller than n.sub.2 and the LI and HI layers are .lambda./4 layers. The HI-layer is a sol-gel layer and the optical layer thickness d.sub.opt,1 of the LI layer and d.sub.opt,2 of the HI layer are such that

REFERENCES:
patent: 4737246 (1988-04-01), Powers et al.
patent: 5623375 (1997-04-01), Floch et al.
patent: 5760981 (1998-06-01), Gillich
Herve G. Floch et al, "Optical Coatings Prepared From Colloidal Meida", Thin Solid Films, No. 1 pp. 173-178, Aug. 1989.

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