Aluminium reflector with composite reflectivity-enhancing surfac

Details Aluminium reflector with composite reflectivity-enhancing surfac Aluminium reflector with composite reflectivity-enhancing surfac

1997-06-16

1999-11-02

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

059781335

ABSTRACT:
Reflector having a composite reflectivity-enhancing layer as reflecting surface layer on a reflector body where the 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: 5076674 (1991-12-01), Lynam
patent: 5528720 (1996-06-01), Winston et al.
patent: 5623375 (1997-04-01), Floch et al.
patent: 5760981 (1998-06-01), Gillich
patent: 5764415 (1998-06-01), Nelson et al.
H.G. Floch et al., Thin Solid Films, vol. 175, No. 1, Aug. 1, 1989, pp. 173 to 178.
I. M. Thomas, Applied Optics, vol. 28, No. 18, Sep. 15, 1989, pp. 4013 to 4016.

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