Northrop Grumman Systems Corporation

Robin Pruss

Alan Greenland

Christopher Jelen

Michael P Radochonski

Mark Thomas Scheitler

Shu-i Wang

Carey Allen Nazarian

Matthew Larsen

Rita Robin Walters

An optical system in which an aggressively compact reflective front end is combined with beam splitting elements and refractive relay optics to allow several imaging systems working in widely different wavelength bands to share a common aperture. The aggressively compact design results in significant field curvature at the uncorrected intermediate or virtual focus, which is corrected in the refractive relay optics for each band's imaging path.

Unobscured two-mirror catadioptric optical system for a multispectral imaging apparatus

An optical port apparatus includes a housing having oppositely disposed first and second housing surfaces and a housing body extending therebetween. A housing aperture extends about a central axis of the housing body. A groove surrounds the housing aperture. The groove extends partially through the housing body and has a bottom groove surface spaced from the second housing surface by a groove side wall. A shelf is located between the groove and the housing aperture. A gasket is located in the groove adjacent the bottom groove surface. The gasket surrounds the housing aperture. A window is located across the housing aperture in contact with the shelf. An elastomeric adhesive is located in the groove between the groove side wall and at least one of the window and the gasket. A bezel is fastened to the second housing surface adjacent the groove.

Optical port apparatus and method of making the same

Growing community of inventors

Streamwood, IL, United States of America

Robin Pruss