Presentation on theme: \"Resolution. Resolution: refers to the sharpness and clarity of an image. The term is most frequently used to define monitors, printers, and also bit- mapped graphic.\"— Presentation transcript:




You are watching: The clarity or sharpness of an image is called

1 Resolution

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2 Resolution: refers to the sharpness and also clarity of one image. The hatchet is most regularly used to explain monitors, printers, and also bit- mapped graphics images. In the case of dot-matrix and laser printers, the resolution indicates the variety of dots every inch.

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3 The display screen resolution the a digital tv or computer display frequently refers to the number of distinct pixels in each measurement that deserve to be displayed. It can be an ambiguous term particularly as the presented resolution is controlled by all different components in cathode beam tube (CRT) and flat dashboard or projection displays using fixed picture-element (pixel) arrays.

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4 just resolved Not solved Two red stars

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5 The Rayleigh default is the generally embraced criterion for the minimum resolvable detail - the imaging procedure is claimed to be diffraction-limited as soon as the an initial diffraction minimum that the image of one resource point synchronizes with the maximum of another. The Rayleigh criterion

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6 Sine the the angular separation the two resources Wavelength the the wave, broad of the gap,b OR Sine b A basic practical check is dubbed Rayleigh’s standard

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7 A car’s headlights space 1.5m apart, and give out light of median wavelength 500 nm. You are 5.0 km away and also the diameter that the pupil of your eye is 3.0 mm. Would you see two separate headlights or just a job of light? This tiny angle approximation: sin = = 1.5 = 1.5 = 0.00030 Radians 5.0 5000 Also, = 500 = 500x10^-9 = 0.00017 b 3.0 3.0x10^-3

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8 two resource interference Two sources a distance d apart are sending out out the same waves in phase. Us observe one interference pattern through lines that constructive interference at certain angles and lines of destructive interference at various other angles.

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9 young\"s equation : In 1801, this experiment was performed because that the first time by thomas Young. Young expanded the mathematical version presented over by relating the wavelength of irradiate to observable and also measurable distances. Today, an experimental setup comparable to the of thomas Young\"s is generally used in a Physics classroom come repeat the experiment and to measure the wavelength the light. In the experiment together it is frequently performed today, light from a laser beam is passed through two narrowly-spaced slits in a slide or paper of paper. The light diffracts with the slits and interfere in the room beyond the slits. Thus, the slits offer as the 2 sources. The interference sample is then projected ~ above a screen, paper or a whiteboard located several meter away. The spatial separation the nodes and antinodes top top the display is clearly seen. Above

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10 right here is a Java applet which have the right to be provided as an help to expertise the fads which are created when 2 circular regular waves interfere. This is often termed a two resource interference pattern. Basic operation: The \"Small\", \"Medium\", and \"Large\" radio buttons regulate the dimension of the waves.

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11 young\"s equation

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12 Diffraction grating In optics, a diffraction lattice is an optical component v a consistent pattern, which splits (diffracts) light right into several beams travelling in various directions.

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The directions of these beams count on the spacing the the grating and also the wavelength that the light so the the grating acts as a dispersive element. Due to the fact that of this, gratings are typically used in monochromators and also spectrometers.opticsdiffracts dispersivemonochromatorsspectrometers

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13 Diffraction grating http://www.youtube.com/watch?v=gxgfthefKbg

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14 Hessa Abdullah Ghayda Al-khater 11A Al-wakra independent secondary School for Girls

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