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US 4,147,040 AGranted
Radiation cooling devices and processes
OwnerGerald Altmaninventor
Life of this patent
Estimating the term…
Abstract
Intensified infrared cooling of a restricted region is achieved by locating the region in the path defined by a geometric configuration, in which a small electrostatic infrared radiation sink and a large infrared radiation condenser are axially related.
Claims12
A process for cooling a subject thermal load that emits infrared radiation, said process comprising the steps of:
- (a) locating a reflecting optical condenser means and a thermal radiation sink in proximity to said subject thermal load;
- (b) focusing a portion of said infrared radiation via said optical condenser means onto the optical face of said thermal radiation sink;
- (c) said optical face substantially constituting an optical point with respect to said optical condenser means;
- (d) said optical face substantially constituting a black body with respect to said portion of infrared radiation;
- (e) conducting a flow of heat from said optical face via an active heat exchanger;
- (f) said flow of heat representing a substantial proportion of said portion of said infrared radiation.
3 more elements
A process for cooling a subject thermal load emits infrared radiation substantially in the range of 4 to 40 microns, said process comprising the steps of:
- (a) establishing a pair of proximate conjugate geometrical regions in relation to reflecting optical condenser means;
- (b) locating said subject thermal load at one of said pair of proximate conjugate geometrical regions;
- (c) locating the optical face of a thermal sink at the other of said pair of proximate conjugate geometrical regions, said optical face being electromotively isolated;
- (d) said optical face substantially constituting an optical point with respect to said condenser means;
- (e) said optical face substantially constituting a black body with respect to said infrared radiation;
- (f) conducting a flow of heat from said optical face via an active heat exchanger;
- (g) said flow of heat representing a substantial proportion of said infrared radiation;
- and
- (h) preventing frost accumulation on said optical face by shielding said optical face from the atmosphere with a window that is transparent to said infrared radiation.
6 more elements
A process for cooling at least a portion of the human body by infrared radiation emitted therefrom, said process comprising the steps of:
- (a) locating a reflecting optical condenser means and a thermal radiation sink in proximity to said portion of said human body;
- (b) focusing a portion of said infrared radiation via said optical condenser means onto the optical face of said thermal radiation sink;
- (c) said optical face substantially constituting an optical point with respect to said optical condenser means;
- (d) said optical face substantially constituting a black body with respect to said portion of said infrared radiation;
- (e) conducting a flow of heat from said optical face via an electrically energized heat exchanger;
- and
- (f) said flow of heat representing a substantial proportion of said portion of said infrared radiation.
4 more elements
Dependencies are inferred from the claim text.