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US 6,785,061 B2Granted
Converging air lens structures
AssigneeAgilent Technologies, Inc.
InventorGeorge E. Smith
Life of this patent
Estimating the term…
Abstract
Converging air lens structure includes a first refractive medium that has a first index of refraction. A second refractive medium that has a second index of refraction is immersed in the first refractive medium. The second refractive index is less than the first index of refraction. The lens structure features converging lens properties. An aperture stop is disposed in the second refractive medium, which is preferably air.
Claims20
A lens structure comprising:
- a first refractive medium that has a first index of refraction;
- a second refractive medium immersed in the first refractive medium;
- wherein
- the second refractive medium has a second index of refraction of 1.0;
- wherein the first index of refraction is greater than the second index of refraction;
- wherein the lens structure features converging lens properties.
3 more elements
A lens structure comprising:
- a first portion that has a first index of refraction;
- a second portion that has the first index of refraction;
- and
- a third portion positioned between the first portion and the second portion;
- wherein the stop of the lens structure is disposed in the a third portion
- wherein the first portion, second portion and third portion form a single lens.
3 more elements
A lens structure comprising:
- a refractive medium that has a first index of refraction;
- a lens immersed in the refractive medium;
- wherein the lens has a second index of refraction of 1.0;
- wherein the first index of refraction is greater than the second index of refraction;
- wherein the lens structure features converging lens properties.
2 more elements
Dependencies are inferred from the claim text.