There are different optical quantities and a range of different measurement geometries that require the use of dedicated probes. As a full line manufacturer, we offer a variety of optical probes for photometric and radiometric measurements that differ in spectral range, degree of cosine correction and a type of optic fiber.
Irradiance and illuminance probes are available for all our spectrometers, and designed for each system based on the spectral range and optical performance of the instrument.