1976-06-07
1978-07-11
Corbin, John K.
40582, 350102, 350109, G02B 528
Patent
active
040998380
ABSTRACT:
A new sheet material carries specially viewable reflective legends provided by a dielectric mirror. The mirror is patterned so that the reflectivity from the mirror carries a pattern of contrasting colors. In some embodiments the mirror is incorporated into retroreflective sheet materials, and in other embodiments in specularly reflective sheet materials.
REFERENCES:
patent: 3154872 (1964-11-01), Nordgen
patent: 3700305 (1972-10-01), Bingham
patent: 3801183 (1974-04-01), Sevelin et al.
patent: 3858977 (1975-01-01), Baird et al.
Bailey Terry R.
Cook Jack E.
Alexander Cruzan
Corbin John K.
de los Reyes B. W.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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