Raytheon Company

Robert K Dodds

Adam M Kennedy

David VanLue

Edward G Meissner

William A Radford

John Steven Anderson

Gregory P Schaefer

Todd E Sessler

Michael C Bailey

David B Brandt

David W Chu

Dmitry Shmoys

Alicia G Allen

Jim Andrew

Edward Meissner

A cooling system for cooling a heat source includes a monolithic structure having a plurality of embedded cooling channels arranged in a multi-planar arrangement, the embedded cooling channels configured to carry a cooling fluid to a plurality of locations throughout the monolithic structure, the cooling fluid configured to absorb heat transferred from a heat source associated with the monolithic structure. The monolithic structure is formed integrally with the embedded cooling channels using an additive manufacturing process.

Monolithic multi-module electronics chassis with multi-planar embedded fluid cooling channels

In certain embodiments, a detection device includes a structure having an entrance that permits radiation to enter the structure and a radiation detector operable to detect radiation that enters the structure. The device also includes a microshutter array coupled to the structure and aligned with the entrance, the array comprising a plurality of microshutter cells operable to move between a first position in which that microshutter cell prevents radiation of a first wavelength from passing through a portion of the entrance and a second position in which that microshutter cell permits the radiation of the first wavelength to pass through the portion of the entrance. The device further includes an actuating device operable to define a first entrance pupil having a first f-number by moving a plurality of microshutter cells associated with the first f-number.

Variable aperture optical device having a microshutter

A radiation detectorhas a baseand a windowthat define a vacuum chamber. Within the vacuum chamberis a temperature controlled filterand a focal plane array (FPA)defining a gap h therebetween. The filteris heat sunk to a readout integrated circuit (ROIC)and thermoelectric elementsto inhibit heat transfer from non-scene sourcesto the FPA. The temperature controlled filtermay also incorporate a bandpass filter to reflect all sources of radiation not within the desired wavelength region of interest. The temperature controlled filteris maintained at substantially the same temperature as the FPA

Thermally stabilized radiation detector utilizing temperature controlled radiation filter

A radiation detector () has a base (), a frame (), a window (), and solder layers () formed from a solder pre-form () to define a vacuum chamber (). Feedthroughs () penetrate the base () for electrical connection to internal components. A method for sealing the detector () aligns a lower detector assembly (), the frame () the window (), and the solder pre-forms () in a non-sealed relation within a processing chamber (). High temperature and low pressure is imposed, and the getter () is activated by resistive heating imposed by current leads (). The window (), frame (), and lower detector assembly () are then pressed together and sealed by the liquefied solder pre-forms (). The method eliminates the need for a seal port, combines several steps within the processing chamber (), and eliminates certain prior art cleaning steps.

Integrated package design and method for a radiation sensing device

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Santa Barbara, CA, United States of America

Robert K Dodds