An investigation of infrared diffuser surfaces

Abstract

ARNOLD ENGINEERING DEVELOPMENT CENTER (XON) ARNOLD AIR FORCE STATION, TENNESSEE 37389 NOTICES When U. S. Government drawings specifications, or other data are used for any purpose other than a definitely related Government procurement operation, the Government thereby incurs no responsibility nor any obligation whatsoever, and the fact that the Government may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data, is not to be regarded by implication or otherwise, or in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto. Qualified users may obtain copies of this report from the Defense Documentation Center. References to named commercial products in this report are not to be considered in any sense as an endorsement of the product by the United States Air Force or the Government. APPROVAL STATEMENT This technical report has been reviewed and is approved.

Development and Operation of a Hemi-Ellipsoidal Mirror Infrared Reflectometer from 2 to 34 micrometers

“…The mirror is assumed to have a constant reflectance given by PM. The power emitted from dA1 and incident upon dAM (a differential area element of the hemiellipsoidal mirror) is given by (10) where Ib is the diffuse monochromatic intensity emitted from dA1 (source) and r1 is the distance from dA1 to dAM (as shown in Fig. 1).…”