Digital exposure meter

Dosimeter for assessing degree of illumination

Electric exposure meter

Instrument for measurement of exposure from a laser radiation

Light measuring apparatus for quantifying photons

Light measuring circuit

Light measuring device

Light measuring device

Method and device for detection of information on optical...

Method and device for measuring the solar energy received at a p

Photometer-digitizer system

Process and apparatus for measuring small quantities of light

Radiation responsive integrating amplifier

Solar energy flux integrator

Transmission detection for a laser power monitor and system

Transmission detection for vertical cavity surface emitting...