System for testing light sources

A system comprising:

• a first color bandpass filter to receive parts of light from light sources having known wavelengths and line widths;
• a second color bandpass filter to receive parts of the light from the light sources having the known wavelengths and line widths, the first color bandpass filter and the second color bandpass filter each having a cutoff wavelength at a band edge, and the first color bandpass filter and the second color bandpass filter each having a band edge that is within single-digit nanometers of a nominal wavelength of a light source, the first color bandpass filter and the second color bandpass filter being separated by a spectral gap;
• wherein the first color bandpass filter and the second color bandpass filter each is configured to output filtered light that is based on received parts of the light from each light source;
• and
• one or more processing devices to perform operations that comprise:
• determining two values based on filtered light from each light source, the two values corresponding to a color space;
• and
• populating a database with information corresponding to the two values.

A system comprising:

• a first color bandpass filter to receive part of light from a light source;
• a second color bandpass filter to receive part of the light from the light source, the first color bandpass filter and the second color bandpass filter each having a cutoff wavelength at a band edge, and the first color passband filter and the second color bandpass filter each having a band edge that is within a predefined distance of a nominal wavelength of the light source, the first color bandpass filter having a first passband, the second color bandpass filter having a second passband;
• wherein the first color bandpass filter and the second color bandpass filter each is configured to output filtered light that is based on received parts of the light;
• and
• one or more processing devices to perform operations that comprise determining first and second values based on the filtered light, the first and second values corresponding to a color space.