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US 12,004,716 B2Granted
Relay lens system for broadband imaging
AssigneeStryker Corporation
InventorFrederick Allen Moore
Life of this patent
Estimating the term…
Abstract
An optical system includes a first relay rod of a first material, a second relay rod of a second material, different from the first material, and a lens between the first and second relay rods.
Claims14
An optical system, comprising:
- a first relay rod of a first material, the first relay rod having no optical power;
- a second relay rod of a second material, different from the first material, wherein the first and second materials are selected to reduce the wavefront error across the field of view of the optical system as compared with using a same material for both the first and second relay rods, the second relay rod having no optical power, wherein the first and second relay rods are geometrically symmetric to one another relative to a pupil or conjugate pupil of the optical system, the first and second relay rods having a same length;
- and
- a lens between the first and second relay rods.
1 more element
A kit, comprising:
- a first relay rod of a first material, the first relay rod having no optical power;
- a second relay rod of a second material, different from the first material, wherein the first and second materials are selected to reduce the wavefront error across the field of view of the optical system as compared with using a same material for both the first and second relay rods, the second relay rod having no optical power, wherein the first and second relay rods are geometrically symmetric to one another relative to a pupil or conjugate pupil of the optical system, the first and second relay rods having a same length;
- and
- a lens to be inserted between the first and second relay rods.
1 more element
A method of compensating for dispersion in a relay lens system, the method comprising:
- providing a first relay rod of a first material, the first relay rod having no optical power;
- providing a second relay rod of a second material, different from the first material, wherein the first and second materials are selected to reduce the wavefront error across the field of view of the optical system as compared with using a same material for both the first and second relay rods, the second relay rod having no optical power, wherein the first and second relay rods are geometrically symmetric to one another relative to a pupil or conjugate pupil of the optical system, the first and second relay rods having a same length;
- and
- providing a lens between the first and second relay rods.
1 more element
Dependencies are inferred from the claim text.