Patent
1989-05-26
1990-09-18
Arnold, Bruce Y.
350109, G02B 5128, G02B 5136
Patent
active
049573357
ABSTRACT:
Microsphere-based retroreflective articles having exceptionally high retroreflective brightness, particularly at divergence angles of up to 0.5.degree. may be made by selection of microspheres having defined combinations of average diameter and average refractive index.
REFERENCES:
patent: 2326634 (1943-08-01), Gebhard et al.
patent: 3149016 (1964-09-01), Tung
patent: 3190178 (1965-06-01), McKenzie
patent: 3700305 (1972-10-01), Bingham
patent: 3758192 (1973-09-01), Bingham
patent: 3946130 (1976-03-01), Tung et al.
patent: 3989775 (1976-11-01), Jack et al.
patent: 4025159 (1977-06-01), McGrath
patent: 4213852 (1980-07-01), Etkin
patent: 4637950 (1987-01-01), Bergeson et al.
patent: 4678695 (1987-07-01), Tung et al.
patent: 4726134 (1988-02-01), Woltman
patent: 4763985 (1988-08-01), Bingham
McCrone, Walter et al., Polarized Light Microscopy, McCrone Research Institute, Chicago, Ill., Jan. 1988.
Arnold Bruce Y.
Jordan Robert H.
Kachmarik Ronald M.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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