Optical Choppers and Lock in Amplifiers
Optical choppers are a mechanical method of repetitively
switching light beams on and off. They consist of a slotted
rotating disc through which the light beam passes producing
the chopping action.
Lockin amplifiers are instruments designed to recover signals
that are buried in noise. They require a reference signal
at the same frequency as the signal that is being measured
and then use this to demodulate the input signal before filtering.
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Eyewear, Screens and Access Control Interlocks
Various styles and wavelength ranges for laser users and
for patients undergoing laser treatment. Please contact
us to discuss your requirements.
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