NIST, Univ. of Maryland researchers raise concerns about green laser pointers
SPIE Member Jemellie Galang and colleagues at the National Institute of Standards and Technology (NIST) and the Univ. of Maryland say they have found worrying evidence that some inexpensive green laser pointers emit dangerous levels of infrared radiation.
In their article, Galang, Allesandro Restelli, Edward Hagley, and team leader Charles Clark said they found that the 20 mW of infrared radiation emitted during normal use is potentially a serious hazard that would not be noticed by most users of such pointers. They contend that the infrared emission derives from the design of the pointer, and describe a simple method of testing for infrared emissions using common household items.
Read the NIST press release.