Premium
An accurate laser radiometer for determining visible exposure times
Author(s) -
Royston David D.
Publication year - 1985
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900050512
Subject(s) - radiometer , laser , optics , radiation , compensation (psychology) , microprocessor , radiometry , remote sensing , environmental science , physics , computer science , psychology , psychoanalysis , computer hardware , geology
A laser light radiometer has been developed for the Electro‐Optics Branch of the Center for Devices and Radiological Health (CDRH). The radiometer measures direct laser radiation emitted in the visible spectrum. Based upon this measurement, the instrument's microprocessor automatically determines at what time duration the exposure to the measured laser radiation would exceed either the class I accessible emission limits of the Federal Performance Standard for laser products or the maximum permissible exposure limits of laser user safety standards. The instrument also features automatic background level compensation, pulse measurement capability, and self‐diagnosis. Measurement of forward surface illumination levels preceding HpD photoradiation therapy is possible.