Surface with low absorptivity to emissivity ratio
Abstract
Abstract A THERMAL SURFACE PARTICULARLY ADAPTED FOR USE AS THE EXTERIOR COATING OF A SPACE VEHICLE OR THE LIKE, AND EXHIBITING A VERY LOW ABSORPTIVITY TO EMISSIVITY RATIO IS FORMED BY COATING A LAYER OF MATERIAL, SUCH AS GLASS, HAVING A HIGH INFRARED EMISSIVITY WITH A DIELECTRIC LOW-PASS OPTICAL FILTER MATERIAL EFFECTIVE TO REFLECT, WITH MINIMUM ABSORPTION, A SUBSTANTIAL PORTION OF THE INCIDENT SOLAR RADIATION OCCURRING AT WAVELENGTHS SHORTER THAN A PREDETERMINED VALUE AND WITH A SECOND MATERIAL WHICH COMPLEMENTS THE LOW-PASS OPTICAL FILER; I,E., IT HAS LOW ABSORPTIVITY FOR AND IS HIGHLY REFLECTIVE TO THE REMAINING PORTION OF THE INCIDENT RADIATION OCCURRING AT WAVELENGTHS LONGER THAN THE PREDETERMINED VALUE.
Inventors
- 👤 Robert E Fischell
Bibliographic Details
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| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |