Several light sources produce light across various wavelengths. While this wavelength spectrum can be useful in lighting applications, other applications require light with a restricted visible ...

Tunable filters are optical filters that are suitable for applications requiring wavelength tuning. Two of their main specifications are the optical density (OD) and the out-of-band rejection. The ...

Scientists at Delft University of Technology in the Netherlands have designed a simplified optical filter for the passive thermal management of interdigitated back-contact (IBC) photovoltaic panels.

Spectrogon manufactures optical interference filters, thin film coatings, and holographic diffraction gratings. The filters are used in several applications such as medical, process industry, thermal ...

Imaging equipment to observe the earth from space provides data for various uses. Wavelength-discriminated imaging at a considerable distance from the earth’s surface is the basic idea behind optical ...