Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1998-04-09
2000-09-19
Loney, Donald
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428913, 359530, 40582, B32B 300, G02B 5124, G09F 1316
Patent
active
061208795
ABSTRACT:
A reflective article has a structured surface which includes a first and second array of reflective elements. The first array includes elements which have at least a first, second, and third reflecting face arranged to retroreflect incident light in a retroreflected beam. The second array includes elements which have at least a fourth, fifth, and sixth reflecting face arranged to reflect incident light in a second beam at an observation angle greater than 2 degrees. In signing applications, the second beam can be light originating from a stationary light source, the second beam having a direction and beam width suitable for illuminating an observation zone of interest. The retroreflected beam can be light originating from a moving light source such as a vehicle headlamp. Sheeting comprising such an article can be used both where external lighting from a suitable stationary light source is available and where it is not available.
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Fiegen Mark D.
Nakajima Toshitaka
Szczech Theodore J.
3M Innovative Properties Company
Hofmann, Jr. Rudolph P.
Jensen Stephen C.
Loney Donald
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