Dowell, M.
and Hadler, J.
(2013),
Accurate, inexpensive testing of handheld lasers for safe use and operation, Measurement Science & Technology, [online], https://doi.org/10.1088/0957-0233/24/4/045202, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=912781
(Accessed October 10, 2025)
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Accurate, inexpensive testing of handheld lasers for safe use and operation
Published
Author(s)
,
Abstract
An accurate, inexpensive test bed for measurements of optical power emitted from handheld lasers is described. Our test bed consists of a thermopile detector, bandpass optical filters, an adjustable iris, and self-centering holders for mounting of the handheld lasers. This test bed serves as a quick and inexpensive method for evaluating the compliance of a laser pointer's power output with the upper power limits imposed by the U.S. Code of Federal Regulations. Measurements on a random sample of 23 Class 3R laser pointers yielded a compliance rate of only 26%. A discussion of potential laser pointer hazards is included.Citation
Measurement Science & Technology
Volume
24
Issue
4
Pub Type
Journals
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Keywords
laser metrology, laser pointers, laser safety
Citation
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Created March 6, 2013, Updated October 12, 2021