Making an optic with a cladding
AssigneeMicrosoft Corporation
InventorsNeil Emerton, Timothy Andrew Large, Kurt A. Jenkins, Adrian Travis
Life of this patent
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Abstract
Embodiments related to making an optic comprising a cladding are disclosed. One example embodiment comprises forming a wedge-shaped light guide having opposing first and second faces and comprising a material having a first refractive index. The embodiment further comprises applying a cladding layer to the first face, and, applying an interface layer to the cladding layer. In this embodiment, the cladding layer has a second refractive index less than the first refractive index, and the interface layer has a third refractive index matched to the first refractive index.
Claims20
A method for making an optic, the method comprising:
- forming a wedge-shaped light guide having opposing first and second faces and comprising a material having a first refractive index;
- applying a cladding layer to the first face, the cladding layer having a second refractive index less than the first refractive index;
- and
- applying an interface layer to the cladding layer, the interface layer having a third refractive index matched to the first refractive index.
A method for making an optic, the method comprising:
- forming a wedge-shaped light guide having opposing first and second faces and comprising a material having a first refractive index;
- spraying a liquid or gel-like cladding formulation onto at least the first face and allowing at least some of the liquid or gel-like cladding formulation to solidify, the liquid or gel-like cladding formulation, after curing, having a second refractive index less than the first refractive index;
- and
- applying a turning film to the cladding layer via an interface layer, the interface layer having a third refractive index matched to the first refractive index.
A method for making an optic, the method comprising:
- forming a wedge-shaped light guide having opposing first and second faces and comprising a material having a first refractive index;
- at least partly immersing the wedge-shaped light guide in the liquid or gel-like cladding formulation and allowing at least some of the liquid or gel-like cladding formulation to solidify, the liquid or gel-like cladding formulation, after curing, having a second refractive index less than the first refractive index;
- and
- applying a turning film to the cladding layer via an interface layer, the interface layer having a third refractive index matched to the first refractive index.
- wherein applying the cladding layer to the first face comprises applying a liquid or gel-like cladding formulation to at least the first face.
Dependencies are inferred from the claim text.