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Delta Optical Thin Film A/S
Fremtidsvej 1
2970 Horsholm
Denmark
SPIE Photonics West 2020 Booth: 3264
Circular Variable Filters
Circular Variable Filters are interference narrow bandpass filters which are deposited on circular substrates. Film thickness, and therefore the wavelength of peak transmittance varies linearly and continuously with angular position on the segment. They are ideally suited as monochromators in compact, nondispersive spectrometers or with supercontinuum lasers, providing medium spectral resolution. They can be manufactured in any wavelength range from 400 nm up to 14.3 µm in the infrared.
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