30.1 MB (4.0 MB compressed)
2927 x 3589 pixels
24.9 x 30.5 cm ⏐ 9.8 x 12.0 in (300dpi)
PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
Editorial use only.
Photodiode laser power meter. This device uses a silicon photodiode to detect light intensity. A photodiode is a semiconductor device that converts light into current. Therefore measuring the current produced in a photodiode can be used to determine light intensity.
Model release not required. Property release not required.