US 2011/0117477 A1 · Photopolymerizable Compositions

Abstract

Currently known holographic recording media and sensors have a number of disadvantages, for example, silver halide-based recording media is expensive to produce and unsuitable for use in certain sensor applications, and photopolymer-based recording media make it difficult to record multiple holographic images, thus, generally, rendering them unsuitable for use in sensors. Holographic recording media according to an embodiment of the present invention may comprise a polymer matrix and a chemical group that dimerizes by forming a cyclic bridge through photocycloaddition. These holographic recording media are cost-effective, allow recording of multiple holographic images, and enable production of sensors with controlled observable response to an external stimulus.

Claims42

Dependent claims

A holographic sensor, comprising:

(a) a holographic recording media comprising a polymer matrix;
and
(b) at least one holographic image recorded in said holographic recording media as diffraction fringes, wherein the diffraction fringes comprise a dimeric structure that includes a cyclic bridge;
and
wherein said holographic recording media responds to an external stimulus by providing at least one output signal.

2 more elements

Dependencies are inferred from the claim text.

Photopolymerizable Compositions

Life of this patent

Photopolymerizable Compositions

Life of this patent

Abstract

Claims42