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  2. Dichroism - Wikipedia

    en.wikipedia.org/wiki/Dichroism

    Such devices include mirrors and filters, usually treated with optical coatings, ... The term dichromatic is also used in this sense. With polarized light

  3. Dielectric mirror - Wikipedia

    en.wikipedia.org/wiki/Dielectric_mirror

    Dielectric mirrors are also used to produce ultra-high reflectivity mirrors: values of 99.999% or better over a narrow range of wavelengths can be produced using special techniques. Alternatively, they can be made to reflect a broad spectrum of light, such as the entire visible range or the spectrum of the Ti-sapphire laser.

  4. Interference filter - Wikipedia

    en.wikipedia.org/wiki/Interference_filter

    The color transmitted by the filter exhibits a blue shift with increasing angle of incidence, see Dielectric mirror. In a dichroic mirror or filter, instead of using an oil film to produce the interference, alternating layers of optical coatings with different refractive indices are built up upon a glass substrate. The interfaces between the ...

  5. Dichroic glass - Wikipedia

    en.wikipedia.org/wiki/Dichroic_glass

    A pendant made from modern dichroic glass. Dichroic glass is glass which can display multiple different colors depending on lighting conditions.. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as an example of ...

  6. Perfect mirror - Wikipedia

    en.wikipedia.org/wiki/Perfect_mirror

    A very complex dielectric mirror can reflect up to 99.999% of the light incident upon it, for a narrow range of wavelengths and angles. A simpler mirror may reflect 99.9% of the light, but may cover a broader range of wavelengths. Almost any dielectric material can act as a perfect mirror through total internal reflection. This effect only ...

  7. Optical filter - Wikipedia

    en.wikipedia.org/wiki/Optical_filter

    Some filters, like mirrors, interference filters, or metal meshes, reflect or scatter much of the non-transmitted light. The ( dimensionless ) Optical Density of a filter at a particular wavelength of light is defined as − log 10 ⁡ T {\displaystyle -\log _{10}T} where T is the (dimensionless) transmittance of the filter at that wavelength.

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