Selective radiative cooling with MgO and/or LiF layers

Patent · 31 December 1985

OSTI ID:865835

Berdahl, Paul H ^[1]

---

1. Oakland, CA

A material for a wavelength-selective radiative cooling system, the material comprising an infrared-reflective substrate coated with magnesium oxide and/or lithium fluoride in a polycrystalline form. The material is non-absorptive for short wavelengths, absorptive from 8 to 13 microns, and reflective at longer wavelengths. The infrared-reflective substrate inhibits absorption at wavelengths shorter than 8 microns, and the magnesium oxide and/or lithium fluoride layers reflect radiation at wavelengths longer than 13 microns.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
• DOE Contract Number: AC03-76SF00098
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4586350
• OSTI ID: 865835
• Country of Publication: United States
• Language: English

Related Subjects

/62/359/
13
absorption
absorptive
coated
comprising
cooling
crystalline form
fluoride
form
infrared-reflective
inhibits
layers
lif
lithium
lithium fluoride
magnesium
magnesium oxide
material
material comprising
mgo
microns
non-absorptive
oxide
polycrystalline
radiation
radiative
radiative cooling
reflect
reflect radiation
reflective
selective
selective radiative
shorter
substrate
substrate coated
wavelength-selective
wavelengths