Wide angle image-displaying sheet and system

Details Wide angle image-displaying sheet and system Wide angle image-displaying sheet and system

1999-03-09

2000-04-11

Phan, James

Optical: systems and elements

Signal reflector

3-corner retroreflective

359515, 359530, G02B 5122

Patent

active

060480696

ABSTRACT:
An imaging element is disposed on a front surface of a retroreflective sheeting to form an image-displaying sheeting. The imaging element includes a light-transmitting prismatic sheeting that has a surface provided with a plurality of parallel prisms. The imaging element also includes an adhesive layer that adheres the prismatic sheeting to the front surface of the retroreflective sheeting. At least a portion of the imaging element is shaped in the form of indicia. In some cases the prismatic sheeting itself is shaped in the form of indicia. In other cases the imaging element includes a light-transmitting colored layer disposed on the front surface of the retroreflective sheeting and shaped in the form of indicia. In the latter case, the prismatic sheeting can be shaped as before to match the indicia-shaped colored layer, or it can extend continuously across the entire retroreflective sheeting. A stationary light source can be added and suitably positioned to enhance visibility of the image in a viewing plane.

REFERENCES:
patent: 4025159 (1977-05-01), McGrath
patent: 4145112 (1979-03-01), Crone et al.
patent: 4605461 (1986-08-01), Ogi
patent: 4726134 (1988-02-01), Woltman
patent: 4758469 (1988-07-01), Lange
patent: 5050327 (1991-09-01), Woltman
patent: 5657162 (1997-08-01), Nilsen et al.

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