Retroreflecting optical construction
First Claim
Patent Images
1. A retroreflecting optical construction, comprising:
- a retroreflecting layer having a retroreflecting structured major surface;
an optical film disposed on the retroreflecting structured major surface and having an effective index of refraction that is not greater than about 1.3.
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Accused Products
Abstract
Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.
158 Citations
19 Claims
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1. A retroreflecting optical construction, comprising:
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a retroreflecting layer having a retroreflecting structured major surface; an optical film disposed on the retroreflecting structured major surface and having an effective index of refraction that is not greater than about 1.3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification