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Schlieren

Index Schlieren

Schlieren (from German; singular "Schliere", meaning "streak") are optical inhomogeneities in transparent material not necessarily visible to the human eye. [1]

20 relations: August Toepler, Background-oriented schlieren technique, Eidophor, German language, Glass, Laser schlieren deflectometry, Léon Foucault, Liquid crystal, Mach–Zehnder interferometer, Moire deflectometry, Point source, Refractive index, Robert Hooke, Schlieren imaging, Schlieren photography, Shadowgraph, Synthetic schlieren, Talaria projector, Thin lens, Video projector.

August Toepler

August Joseph Ignaz Toepler (7 September 1836 – 6 March 1912) was a German physicist known for his experiments in electrostatics.

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Background-oriented schlieren technique

Background-oriented schlieren (BOS) is a novel technique for flow visualization of density gradients in fluids using the Gladstone–Dale relation between density and refractive index of the fluid.

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Eidophor

An Eidophor was a television projector used to create theater-sized images.

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German language

German (Deutsch) is a West Germanic language that is mainly spoken in Central Europe.

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Glass

Glass is a non-crystalline amorphous solid that is often transparent and has widespread practical, technological, and decorative usage in, for example, window panes, tableware, and optoelectronics.

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Laser schlieren deflectometry

Laser schlieren deflectometry (LSD) is a method for a high-speed measurement of the gas temperature in microscopic dimensions, in particular for temperature peaks under dynamic conditions at atmospheric pressure.

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Léon Foucault

Jean Bernard Léon Foucault (18 September 1819 – 11 February 1868) was a French physicist best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation.

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Liquid crystal

Liquid crystals (LCs) are matter in a state which has properties between those of conventional liquids and those of solid crystals.

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Mach–Zehnder interferometer

In physics, the Mach–Zehnder interferometer is a device used to determine the relative phase shift variations between two collimated beams derived by splitting light from a single source.

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Moire deflectometry

Moiré deflectometry produces result that appears similar to an interferometry technique, in which the object to be tested (either phase object or specular surface) is mounted in the course of a collimated beam followed by a pair of transmission gratings placed at a distance from each other.

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Point source

A point source is a single identifiable localised source of something.

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Refractive index

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.

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Robert Hooke

Robert Hooke FRS (– 3 March 1703) was an English natural philosopher, architect and polymath.

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Schlieren imaging

Schlieren imaging is a method to visualize density variations in transparent media.

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Schlieren photography

Schlieren photography (from German; singular "Schliere", meaning "streak") is a visual process that is used to photograph the flow of fluids of varying density.

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Shadowgraph

Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass.

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Synthetic schlieren

Synthetic schlieren is a process that is used to visualize the flow of a fluid of variable refractive index.

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Talaria projector

Talaria was the brand name of a large-venue video projector from General Electric introduced in 1983.

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Thin lens

In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii of curvature of the lens surfaces.

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Video projector

A video projector is an image projector that receives a video signal and projects the corresponding image on a projection screen using a lens system.

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Redirects here:

Schlieren effect, Schlieren lines.

References

[1] https://en.wikipedia.org/wiki/Schlieren

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