Delta Optical Thin Film

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At its booth Delta Optical Thin Film will be showing its range of custom continuously variable bandpass filters (CVBPFs) for mid-size and full-frame CCD/CMOS detectors. These filters offer very high transmission and are fully blocked in the light-sensitive wavelength range of silicon-based detectors.

The combination of CVBPFs with silicon detectors enables the design of very compact, robust and affordable hyperspectral imaging detectors that offer several advantages and benefits over conventional approaches, including: huge aperture and high transmission compared to gratings and prisms, shorter measurement times, a higher suppression of stray light, excellent signal to background ratio, the ability to perform simultaneous 3D measurements, and the ability to take snapshots using a micro lens array.

The advent of affordable hyperspectral imaging makes the technique an attractive tool for volume markets, as well as for consumer products in applications such as cancer detection, precision farming, and food testing in supermarkets.

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