Formable reflective multilayer body

Details Formable reflective multilayer body Formable reflective multilayer body

1994-05-13

1995-09-05

Lerner, Martin

Optical: systems and elements

Light interference

Produced by coating or lamina

359586, 359588, G02B 110, G02B 528

Patent

active

054484049

ABSTRACT:
A formable multilayer reflective polymeric body which has a substantially uniform broad bandwidth reflectance over substantially the entire range of the visible spectrum to provide a substantially uniform reflective appearance is provided. The body includes at least first and second diverse polymeric materials, the body comprising a sufficient number of alternating layers of the first and second polymeric materials such that at least 40% of visible light incident on the body is reflected. A substantial majority of the individual layers of the body have optical thicknesses in the range where the sum of the optical thicknesses in a repeating unit of the polymeric materials is greater than about 190 nm, and the first and second polymeric materials differ from each other in refractive index by at least about 0.03.

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