DELTA OPTICAL THIN FILM A/S

Standnummer: 222

Delta Optical Thin Film A/S has developed several Linear Variable Bandpass Filters that are specifically designed for Hyperspectral Imaging. Hyperspectral imaging has been used for a couple of decades in applications such as satellite imaging, air reconnaissance and other not overly price sensitive markets. Classical Hyper-spectral imaging cameras use prisms or gratings as dispersive elements. These cameras are bulky, sensitive to misalignment and very expensive. The advent of alternative approaches makes HSI attractive for volume markets or even consumer products, for example cancer detection, precision farming, food testing in supermarkets and many more. Delta Optical Thin Film A/S develops and manufactures custom Linear Variable Bandpass Filters (LVBPF) for mid-size and full-frame CCD/CMOS sensors (e. g. 25 mm x 25 mm or 24 mm x 36 mm). These filters offer very high transmission and are fully blocked in the light sensitive wavelength range of silicon-based detectors (200 nm to 1150 nm). The combination of LVBPFs with silicon detectors allows the design of very compact, robust and affordable HSI detectors that offer several advantages and benefits over conventional approaches: • Huge aperture compared to grating and prism • Higher transmission than grating and prism • Short measurement time • High suppression of stray light • Excellent signal to noise ratio Delta Optical Thin Film A/S welcomes requests for custom designed Linear Variable Bandpass Filters. Several types are available for immediate testing.