| 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 |
| Volume: |
24 |
| Issue: |
4 |
| Pages: |
7 pp. |
| 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 (543KB) |
