Specular and Diffuse Reflectance Measurements of Aluminum Surfaces

E. Barkman

doi:10.1520/STP47443S

SYMPOSIA PAPER Published: 01 January 1970

STP47443S

Specular and Diffuse Reflectance Measurements of Aluminum Surfaces

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The appearance attributes of aluminum surfaces are measured using integrating sphere instruments commercially available. Total (TR) and diffuse reflectance (DR) values are obtained on the instrument. The specular reflectance (SR) is the difference: SR=TR−DR The term, “specularity” or “specular reflectance factor” (SRF), is calculated: SRF=100[SRTR] and is a numerical value of the visual “brightness” or mirror qualities of the surface. Examples of various appearance properties are given to illustrate the practical application of the method.

Author Information

Barkman, E., F.

Reynolds Metals Co., Richmond, Va.

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Details

Developed by Committee: E12

Pages: 46–58

DOI: 10.1520/STP47443S

ISBN-EB: 978-0-8031-6974-6

ISBN-13: 978-0-8031-6655-4

Specular and Diffuse Reflectance Measurements of Aluminum Surfaces

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