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3 days ago · Fig. 1: Underwater plants in a fish tank, and their inverted images (top) formed by total internal reflection in the water–air surface. In physics, total internal reflection (TIR) is the phenomenon in which waves arriving at the interface (boundary) from one medium to another (e.g., from water to air) are not refracted into the second ("external") medium, but completely reflected back into ...
2 days ago · The field distribution just behind the lens plane undergoes a Fresnel propagation, taking into account the phase differences that arise after passing through the lens. When the field distribution is multiplied by the aperture function of the lens, the resulting distribution represents the aperture function of the lens when the incoming wave is ...
4 days ago · The Fresnel lens type can be found in non-sequential mode. In this model, Fresnel 2 is selected. Such object type denotes an idealized Fresnel lens object having a circular or rectangular shape, with one face an ideal Fresnel lens with either radial or cylindrical polynomial aspheric terms over a base conic asphere.
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6 days ago · Light can behave in many ways like a wave or a packet of photons which travel in a straight line exhibiting the property of rectilinear propagation. Geometrical optics deals with the propagation of light in a straight line and phenomena such as reflection, refraction, polarization, etc. A ray of light gives the direction of propagation of light. In the absence of an obstacle, the rays advance ...
5 days ago · Snell's law, also known as the law of refraction, is a law stating the relationship between the angles of incidence and refraction, when referring to light passing from one medium to another medium such as air to water, glass to air, etc. Let us consider that light enters from medium 1 to medium 2, ...
3 days ago · The lenses typically used on DSLRs have a wider range of apertures available to them, ranging from as large as f / 0.9 to about f / 32. Lenses for smaller sensor cameras rarely have true available aperture sizes much larger than f / 2.8 or much smaller than f / 5.6.
4 days ago · FresnelC -- from Wolfram MathWorld. History and Terminology. Wolfram Language Commands.
