Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Optical_filter> ?p ?o }
- Optical_filter abstract "Optical filters are devices that selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the bulk or have interference coatings. The optical properties of filters are completely described by their frequency response, which specifies how the magnitude and phase of each frequency component of an incoming signal is modified by the filter.Filters mostly belong to one of two categories. The simplest, physically, is the absorptive filter; then there are interference or dichroic filters.Optical filters selectively transmit light in a particular range of wavelengths, that is, colours, while blocking the remainder. They can usually pass long wavelengths only (longpass), short wavelengths only (shortpass), or a band of wavelengths, blocking both longer and shorter wavelengths (bandpass). The passband may be narrower or wider; the transition or cutoff between maximal and minimal transmission can be sharp or gradual. There are filters with more complex transmission characteristic, for example with two peaks rather than a single band; these are more usually older designs traditionally used for photography; filters with more regular characteristics are used for scientific and technical work.Optical filters are commonly used in photography (where some special effect filters are occasionally used as well as absorptive filters), in many optical instruments, and to colour stage lighting. In astronomy optical filters are used to restrict light passed to the spectral band of interest, e.g., to study infrared radiation without visible light which would affect film or sensors and overwhelm the desired infrared. Optical filters are also essential in fluorescence applications such as fluorescence microscopy and fluorescence spectroscopy.Photographic filters are a particular case of optical filters, and much of the material here applies. Photographic filters do not need the accurately controlled optical properties and precisely defined transmission curves of filters designed for scientific work, and sell in larger quantities at correspondingly lower prices than many laboratory filters. Some photographic effect filters, such as star effect filters, are not relevant to scientific work.".
- Optical_filter thumbnail Filter-optics-1.jpg?width=300.
- Optical_filter wikiPageID "741823".
- Optical_filter wikiPageLength "13372".
- Optical_filter wikiPageOutDegree "80".
- Optical_filter wikiPageRevisionID "703250353".
- Optical_filter wikiPageWikiLink Absorbance.
- Optical_filter wikiPageWikiLink Absorption_(electromagnetic_radiation).
- Optical_filter wikiPageWikiLink Angling.
- Optical_filter wikiPageWikiLink Arc_welding.
- Optical_filter wikiPageWikiLink Astronomy.
- Optical_filter wikiPageWikiLink Atomic_line_filter.
- Optical_filter wikiPageWikiLink Band-stop_filter.
- Optical_filter wikiPageWikiLink Camera.
- Optical_filter wikiPageWikiLink Category:Optical_filters.
- Optical_filter wikiPageWikiLink Charge-coupled_device.
- Optical_filter wikiPageWikiLink Color.
- Optical_filter wikiPageWikiLink Color_gel.
- Optical_filter wikiPageWikiLink Depth_of_field.
- Optical_filter wikiPageWikiLink Dichroic_filter.
- Optical_filter wikiPageWikiLink Dichroic_prism.
- Optical_filter wikiPageWikiLink Dutch_Open_Telescope.
- Optical_filter wikiPageWikiLink Electronic_filter.
- Optical_filter wikiPageWikiLink Fabry–Pérot_interferometer.
- Optical_filter wikiPageWikiLink Filter_(signal_processing).
- Optical_filter wikiPageWikiLink Filter_fluorometer.
- Optical_filter wikiPageWikiLink Fluorescence_microscope.
- Optical_filter wikiPageWikiLink Fluorescence_spectroscopy.
- Optical_filter wikiPageWikiLink Glass.
- Optical_filter wikiPageWikiLink Grating.
- Optical_filter wikiPageWikiLink Incandescent_light_bulb.
- Optical_filter wikiPageWikiLink Infrared_cut-off_filter.
- Optical_filter wikiPageWikiLink Infrared_photography.
- Optical_filter wikiPageWikiLink Inorganic_chemistry.
- Optical_filter wikiPageWikiLink Interference_(wave_propagation).
- Optical_filter wikiPageWikiLink Interference_filter.
- Optical_filter wikiPageWikiLink Logarithm.
- Optical_filter wikiPageWikiLink Low-pass_filter.
- Optical_filter wikiPageWikiLink Lyot_filter.
- Optical_filter wikiPageWikiLink Metal-mesh_optical_filter.
- Optical_filter wikiPageWikiLink Monochromator.
- Optical_filter wikiPageWikiLink Neutral-density_filter.
- Optical_filter wikiPageWikiLink Optical_coating.
- Optical_filter wikiPageWikiLink Optical_fiber.
- Optical_filter wikiPageWikiLink Optical_path.
- Optical_filter wikiPageWikiLink Optics.
- Optical_filter wikiPageWikiLink Organic_chemistry.
- Optical_filter wikiPageWikiLink Overhead_projector.
- Optical_filter wikiPageWikiLink Photographic_filter.
- Optical_filter wikiPageWikiLink Photography.
- Optical_filter wikiPageWikiLink Plastic.
- Optical_filter wikiPageWikiLink Polarization_(waves).
- Optical_filter wikiPageWikiLink Polarizer.
- Optical_filter wikiPageWikiLink Polaroid_(polarizer).
- Optical_filter wikiPageWikiLink Poly(methyl_methacrylate).
- Optical_filter wikiPageWikiLink Polycarbonate.
- Optical_filter wikiPageWikiLink Slide_projector.
- Optical_filter wikiPageWikiLink Solid-state_electronics.
- Optical_filter wikiPageWikiLink Spectral_line.
- Optical_filter wikiPageWikiLink Specular_reflection.
- Optical_filter wikiPageWikiLink Stage_lighting.
- Optical_filter wikiPageWikiLink Stereoscopy.
- Optical_filter wikiPageWikiLink Sunglasses.
- Optical_filter wikiPageWikiLink Swedish_Solar_Telescope.
- Optical_filter wikiPageWikiLink Telecommunications_network.
- Optical_filter wikiPageWikiLink Transmission_coefficient.
- Optical_filter wikiPageWikiLink Transmission_curve.
- Optical_filter wikiPageWikiLink Visible_spectrum.
- Optical_filter wikiPageWikiLink Warm_filter.
- Optical_filter wikiPageWikiLink Wavelength.
- Optical_filter wikiPageWikiLink Wavelength-division_multiplexing.
- Optical_filter wikiPageWikiLink Welding_helmet.
- Optical_filter wikiPageWikiLink Ångström.
- Optical_filter wikiPageWikiLink File:Filter-optics-1.jpg.
- Optical_filter wikiPageWikiLinkText "Frequency selective optical filters".
- Optical_filter wikiPageWikiLinkText "Optical filter".
- Optical_filter wikiPageWikiLinkText "Optical filter#Bandpass".
- Optical_filter wikiPageWikiLinkText "filter glass".
- Optical_filter wikiPageWikiLinkText "filter wheel".
- Optical_filter wikiPageWikiLinkText "filter".
- Optical_filter wikiPageWikiLinkText "filtered".
- Optical_filter wikiPageWikiLinkText "filters".
- Optical_filter wikiPageWikiLinkText "laser rejection filters".
- Optical_filter wikiPageWikiLinkText "longpass filter".
- Optical_filter wikiPageWikiLinkText "optical bandpass filter".
- Optical_filter wikiPageWikiLinkText "optical filter".
- Optical_filter wikiPageWikiLinkText "optical".
- Optical_filter wikiPageUsesTemplate Template:Refimprove.
- Optical_filter wikiPageUsesTemplate Template:Reflist.
- Optical_filter subject Category:Optical_filters.
- Optical_filter hypernym Devices.
- Optical_filter type Device.
- Optical_filter type Filter.
- Optical_filter comment "Optical filters are devices that selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the bulk or have interference coatings. The optical properties of filters are completely described by their frequency response, which specifies how the magnitude and phase of each frequency component of an incoming signal is modified by the filter.Filters mostly belong to one of two categories.".
- Optical_filter label "Optical filter".
- Optical_filter sameAs Q1134091.
- Optical_filter sameAs مرشح_ضوئي.
- Optical_filter sameAs Filtre_òptic.
- Optical_filter sameAs Optický_filtr.
- Optical_filter sameAs Filter_(Optik).