Optical joint comprising antireflection films
First Claim
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1. An optical joint for joining a first light-transmissive material having a refractive index n1, to a second light-transmissive material having a refractive index n3, comprising:
- a transparent adhesive layer, having a refractive index n0, adapted to be disposed between the first and second materials;
a first antireflection film, having a refractive index between n1 and n0, disposed between said adhesive layer and the first material; and
a second antireflection film, having a refractive index between n3 and n0, disposed between the adhesive layer and the second material, such that Fresnel reflection occurring at the interfaces between the adhesive layer and the first and second light-transmissive materials are substantially suppressed.
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Abstract
An optical joint for joining a first light transmissive material to a second light transmissive material. The joint comprises a transparent adhesive layer between the first and second materials, and an antireflection film between each of the first and second materials and the adhesive layer. The joint prevents Fresnel reflection which would otherwise occur between the light transmissive materials.
16 Citations
7 Claims
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1. An optical joint for joining a first light-transmissive material having a refractive index n1, to a second light-transmissive material having a refractive index n3, comprising:
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a transparent adhesive layer, having a refractive index n0, adapted to be disposed between the first and second materials; a first antireflection film, having a refractive index between n1 and n0, disposed between said adhesive layer and the first material; and a second antireflection film, having a refractive index between n3 and n0, disposed between the adhesive layer and the second material, such that Fresnel reflection occurring at the interfaces between the adhesive layer and the first and second light-transmissive materials are substantially suppressed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification