Fiber optic guides deliver light from a calibrated broad-spectrum lamp to the test surface, and collect the reflected light for analysis. This instrument samples areas under one millimeter in diameter, such as the stroke of a pen.
Sample applications:
- calibrated color measurements permit monitoring of color changes after a conservation treatment or during exhibition
- timed exposures are used to perform micro-scale lightfastness testing of sensitive dyes and inks

Micro-scale Spectrometer.
