Optimal Design of Colored Glass filters
Designing a colored glass filter with a specified spectral transmittance is
very difficult due to the availability of colored glasses, the arrangement
methods of the colored glasses, and the thickness of each colored glass. Liu et
al developed an optimization algorithm for designing colored glass filters to
simulate CIE illuminant D65. This method can be used to design any types of
colored glass filters, such as the filters for modifying the spectral response
of detectors to simulate CIE color matching functions, and the filters for CIE
standard daylight illuminants.
The optimization algorithm can design serially arranged colored glass filters,
side-by-side filters, and the combination of side-by-side with serial arranged
filters. The arrangement style depends on the requirement from our customers.
Most filters are serial arrangement with 2 to 3 colored glass. A few of them are
the combination of side-by-side with serial arrangement, such as the filters for
simulating CIE illuminant D65.
Colored glass filter design service. We design colored glass filters
according to the customers' requirements. The designed filter has an optimal match
to the required spectral transmittance. We will provide a sample filter to
verify the spectral transmittance. We can also provide colored glass filters.
We used the optimal design method to design optical filter for simulating
standard CIE daylight illuminates, and the optical filter received a US patent
7,378,784. We also used the method to design the glass filters of a three-band
light source for museum lighting.
 Y. Liu, R. Berns, and Y. Shu, Optimization
algorithm for designing colored glass filters to simulate CIE illuminant D65,
Color Res. Appl., 16, 89-96 (1991)