Optical: systems and elements – Signal reflector – Including a curved refracting surface
Patent
1990-01-25
1991-11-12
Arnold, Bruce Y.
Optical: systems and elements
Signal reflector
Including a curved refracting surface
G02B 5128, G02B 5136
Patent
active
050642723
ABSTRACT:
In encapsulated-lens reflective sheeting of the prior art, a monolayer of glass microspheres is embedded in a binder layer, a specularly reflective layer underlies the microspheres, and a cover film encapsulates the microspheres, within a plurality of hermetically sealed cells. In the invention, a HMW thermoplastic binder film, affords improved structural intregity, greater toughness, and better conformability to irregular surfaces without cracking. The cover film preferably is of the same polymer family as said binder film.
REFERENCES:
patent: 2407680 (1945-03-01), Palmquist et al.
patent: 3005382 (1961-10-01), Weber
patent: 3190178 (1961-06-01), McKenzie
patent: 4075049 (1978-02-01), Wood
patent: 4148955 (1979-04-01), Breitenfellner et al.
patent: 4181766 (1980-01-01), Williams et al.
patent: 4376006 (1983-03-01), Nishikawa et al.
patent: 4394416 (1983-06-01), Shimizu et al.
patent: 4505967 (1985-03-01), Bailey
patent: 4605461 (1986-08-01), Ogi
patent: 4664966 (1987-05-01), Bailey et al.
patent: 4767659 (1988-08-01), Bailey et al.
patent: 4957335 (1990-09-01), Kumey
Bailey Terry R.
Dickson Arthur D.
Kult Roger R.
Tolliver Howard R.
Arnold Bruce Y.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Phan James
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