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|Author(s):||Marla L. Dowell; Joshua A. Hadler;|
|Title:||Accurate, inexpensive testing of handheld lasers for safe use and operation|
|Published:||March 07, 2013|
|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|
|Keywords:||laser metrology, laser pointers, laser safety|
|Research Areas:||Optical Metrology, Laser Physics, Optical Physics|
|DOI:||http://dx.doi.org/10.1088/0957-0233/24/4/042001 (Note: May link to a non-U.S. Government webpage)|
|PDF version:||Click here to retrieve PDF version of paper (556KB)|