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US07256936B2 Optical polarizing films with designed color shifts 有权
具有设计色偏的光学偏振片

Optical polarizing films with designed color shifts
摘要:
Multilayer films are provided that exhibit a colored appearance when viewed at an oblique angle as a result of one or more reflection bands in the visible region of the spectrum. The films however provide no substantial reflection bands in either the visible or near infrared regions for light normally incident on the film. The films can be made to shift from clear at normal incidence to an arbitrary designed color at an oblique angle without necessarily becoming cyan.
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