G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/128 (2006.01) E01F 9/015 (2006.01) E01F 9/03 (2006.01) E01F 9/04 (2006.01) G02B 5/124 (2006.01)
Patent
CA 2222565
Retroreflective article (80) that provides effective retroreflective brightness at very high entrance angles as well as low entrance angles and under wet conditions. The article comprises spherical refracting elements (60) having an index of refraction above 1.35 and below 1.75 adhered to the cover (66) film of an enclosed-lens retroreflective base sheet.
L'invention se rapporte à un article rétroréflecteur (80) produisant une brillance rétroréfléchissante efficace à des très grands angles d'entrée aussi bien qu'à des angles d'entrée petits et dans des conditions d'humidité. L'article se compose d'éléments sphériques réfracteurs (60) ayant un indice de réfraction supérieur à 1,35 et inférieur à 1,75, collés à un film (60) de revêtement d'une feuille de base rétroréfléchissante de lentille intégrée.
Bailey Terry R.
Belisle Louis C.
Haunschild Dale H.
Jacobs Gregory F.
Schueler David G.
Smart & Biggar
The Minnesota Mining & Manufacturing Company
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