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US 11,287,635 B2Granted
Multi-channel folded optical system
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorsMatthew A. Sinclair, Paul Aaron Bohn, Juha-Pekka Laine, Francis J. Rogomentich
Life of this patent
Estimating the term…
Abstract
An optical system such as an imaging system, projecting system or combined imaging and projecting system, has complex dielectric coatings and/or reflecting polarizers to separate multiple spectral bands and/or polarizations on one or more of the system's curved mirrors.
Claims20
An optical system, comprising:
- a first mirror substrate having a primary mirror and a tertiary mirror;
- a second mirror substrate opposing the first mirror substrate and having a secondary mirror and a quaternary mirror;
- and
- a piston for translating the second mirror substrate relative to the first mirror substrate;
- and
- wherein the primary mirror and the tertiary mirror are aspheric and the secondary mirror and the quaternary mirror are flat or spherical.
3 more elements
An imaging system, comprising:
- a first mirror substrate having an aspheric primary mirror and an aspheric tertiary mirror;
- a second mirror substrate opposing the first mirror substrate and having a spherical secondary mirror and a spherical quaternary mirror;
- and
- a piston for translating the second mirror substrate relative to the first mirror substrate.
1 more element
An optical system, comprising:
- a first mirror substrate having a primary mirror and a tertiary mirror;
- a first baffle between the primary mirror and the tertiary mirror;
- a second mirror substrate opposing the first mirror substrate and having a secondary mirror and a quaternary mirror;
- a second baffle between the secondary mirror and the quaternary mirror;
- and
- a piston for translating the second mirror substrate relative to the first mirror substrate;
- wherein the primary mirror and the tertiary mirror are aspheric and the secondary mirror and the quaternary mirror are flat or spheric.
4 more elements
Dependencies are inferred from the claim text.