Diffraction (I) - a photo on Flickriver

$Diffraction (I)$

Diffraction (I)

            La diffraction est le comportement des ondes lorsqu’elles rencontrent un obstacle ou une ouverture ; le phénomène peut être interprété par la diffusion d’une onde par les points de l'objet. La diffraction se manifeste par le fait qu'après la rencontre d’un objet, la densité de l'onde n’est pas conservée contrairement aux lois de l’optique géométrique.

La diffraction est le résultat de l'interférence des ondes diffusées par chaque point.

La diffraction s’observe avec la lumière, mais de manière générale avec toutes les ondes : le son, les vagues, les ondes radio, les rayons X, les électrons, les neutrons. Elle est une signature de la nature ondulatoire d'un phénomène.
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Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. It is defined as the bending of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle. In classical physics, the diffraction phenomenon is described as the interference of waves according to the Huygens–Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.
   

Taken on: July 11, 2017

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Hens Yasmine

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Canon EOS 7D Mark II

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Camera: Canon EOS 7D Mark II, f/5.6, 0.6 sec, 65mm, ISO 1250 (more info) (hide info)

Camera:	Canon EOS 7D Mark II
Aperture:	f/5.6
Exposure Time:	0.6
Focal Length:	65mm
ISO:	1250
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom 5.7.1 (Windows)
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