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Linear variable bandpass filters

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Delta Optical Thin Film has launched several linear variable bandpass filters that are specifically designed for hyperspectral imaging.

Delta Optical Thin Film develops and manufactures custom linear variable bandpass filters (LVBPF) for mid-size and full-frame CCD/CMOS sensors (e.g. 25 x 25mm or 24 x 36mm). These filters offer very high transmission and are fully blocked in the light sensitive wavelength range of silicon-based detectors (200nm to 1,150nm). The combination of LVBPFs with silicon detectors allows the design of very compact, robust and affordable hyperspectral imaging detectors that offer several advantages and benefits over conventional approaches, such as a short measurement time, high suppression of stray light, and impressive signal to noise ratio.