Research/Patents/US 4479367
US 4479367

THERMAL FILTER

Assignee

SANTA BARBARA RESEARCH CENTER, A CORP. OF CA.

Filed

Dec 28, 1981

Granted

Oct 30, 1984

Location

TAMPA FL US

Abstract

The rate of temperature change of an infrared detector produced by a cooling source in a typical Joule-Thomson cryostat (or other cooling device such as closed cycle cooler) is reduced by interposing a thermal filter between the detector and cooling source. The thermal filter comprises at least two layers of a first material having a good heat conductivity and high heat capacity, such as copper, separated by a layer of a second material having a high thermal resistance, such as an adhesive, e.g., a silicone rubber. The thermal filter of the invention is a thermal analog of an electrical filter which smooths out voltage or current oscillations.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 28, 1982

Rescinded

Oct 13, 1982

Duration

5 months

Inventor

  • 1J. STANLEY BULLER

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records