Kelley, E.
and Boynton, P.
(2003),
Seamless Frusta Creation for Stray-Light Management in Optical Devices, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.6637, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31587
(Accessed October 16, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Seamless Frusta Creation for Stray-Light Management in Optical Devices
Published
Author(s)
,
Abstract
Optical devices such as luminance meters and digital cameras used for light measurement often suffer from stray light corrupting the accurate measurement of light particularly when they are used to measure dark areas of high-contrast scenes. A method of controlling the stray light is provided using gloss-black frusta. Methods to create seamless frusta from plastic sheets are described and their use is described.Citation
NIST Interagency/Internal Report (NISTIR) - 6637
Report Number
6637
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
frusta, frustum masks, frustums, high contrast, luminance measurements, stray light, veiling glare
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created November 30, 2003, Updated October 12, 2021