interference filters

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• Interference filter — An interference filter or dichroic filter is an optical filter that reflects one or more spectral bands or lines and transmits others, while maintaining a nearly zero coefficient of absorption for all wavelengths of interest. An interference… …   Wikipedia

• Interference (wave propagation) — Two point interference in a ripple tank. In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are… …   Wikipedia

• Metal-mesh optical filters — are optical filters made from stacks of metal meshes and dielectric. They are used as part of an optical path to filter the incoming light to allow frequencies of interest to pass while reflecting other frequencies of light. Metal mesh filters… …   Wikipedia

• Electromagnetic interference — RIV redirects here. For other uses, see RIV (disambiguation). Electromagnetic interference in analog TV signal Electromagnetic interference (or EMI, also called radio frequency interference or RFI) is disturbance that affects an electrical… …   Wikipedia

• Non-interference (security) — This article is about a security policy model. For the Buddhist concept, see Noninterference (Buddhism). Non interference is a strict multilevel security policy model, first described by Goguen and Meseguer in 1982, and amplified further in 1984 …   Wikipedia

• Conducted electromagnetic interference — EMI Electromagnetic Interference: EMI is unwanted effects in the electrical system due to electromagnetic radiation and electromagnetic conduction. Electromagnetic radiation and electromagnetic conduction are differentiated by the way an EM field …   Wikipedia

• Filter (optics) — Coloured and Neutral Density filters Optical filters are devices which selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the mass or have… …   Wikipedia

• Atomic line filter — A potassium Faraday filter designed, built and photographed by Jonas Hedin for making daytime LIDAR measurements at Arecibo Observatory.[1] An atomic line filter (ALF) is an advanced optical band pass filter used in the physical sciences for… …   Wikipedia

• Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …   Wikipedia

• H-alpha — In physics and astronomy, H alpha, also written Hα, is a specific emission line created by hydrogen at 6562.8 Angstroms.According to the Bohr model of the atom, electrons exist in quantized energy levels surrounding the atom s nucleus. These… …   Wikipedia

• Touch screen filter — This is an article describing the EMI and Optics filters that can be manufactured and incorporated onto touch screens. A number of filters and light guides into touch panels to achieve a variety of applications. In addition, all of these… …   Wikipedia