Multi-layer reflectors

Details Multi-layer reflectors Multi-layer reflectors

1979-11-13

1982-07-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

350288, 350292, 350320, 428412, 428415, 428416, 4284255, 4284256, 4284258, 428426, 428427, 428428, 428432, 428433, 428434, 428446, 428447, 428450, 428458, 428457, 428463, 428460, 428469, 428472, 428913, G02B 508, B32B 1710, B32B 1508

Patent

active

043406467

ABSTRACT:
The reflector of the present invention is a multi-layer reflector comprising a substrate with or without a resin layer coated thereon; a light-reflective metal layer vacuum-coated on said substrate; and a protective layer consisting of a light transmittable resin layer and a light transmittable, preferably vacuum-coated, inorganic substance layer coated on said metal layer. By this, each film can be thin as compared with each individual protective film, which leads to good heat conductivity low temperature rise, high impact strength and good durability and which gives clear reflected images or high precision light collective and light distributing properties. In addition, the coated light-reflective metal shows better regular reflectivity, giving clear and sharp reflected images and allowing more accurate light collective or light distributing properties. Furthermore, selection of an inorganic substance layer or a resin layer as the outermost protection allows the manufacture of reflectors having desired characteristics (resistance to oil, solvents, light, heat, abrasion, chemicals, water and moisture; flexibility, etc.) depending on specific requirements.

REFERENCES:
patent: 2519722 (1950-08-01), Turner
patent: 2676117 (1954-04-01), Colbert
patent: 3026177 (1962-03-01), St. Pierre
patent: 3026210 (1962-03-01), Coble
patent: 3398040 (1968-08-01), Allen
patent: 3410636 (1968-11-01), Herrick
patent: 3610741 (1971-10-01), Davies
patent: 3687713 (1972-08-01), Adams
patent: 3837895 (1974-09-01), Pyror
patent: 4009947 (1977-03-01), Nisheda

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