G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/12 (2006.01) G02B 1/00 (2006.01) G02B 1/10 (2006.01) G02B 5/08 (2006.01)
Patent
CA 2208302
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 n2, and, between the reflector body and the outer layer, an LI-layer with a refractive index n1 which is smaller than n2 and the LI and HI layers are .lambda./4 layers. The HI layer is a sol-gel layer and the optical layer thickness d opt,1 of the LI layer and d opt,2 of the HI layer are such that d opt,i = d i.n i=l i..lambda./4 ~20 nm, i = 1 or 2 where d1 represents the thickness of the LI layer in nm, d2 the thickness of the HI layer in nm, .lambda. the average wavelength in nm of the light striking the reflector surface and l1, l2 are uneven natural numbers. The LI layer is a barrier layer of aluminium oxide made by anodis- ing, or a sol-gel layer.
Alcan Technology & Management Ag
Alusuisse Technology & Management Ag
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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