RESOLUTION OF ICCD CAMERAS
... frequencies of interest (see figure 1 below). It is mathematically obtainable from the point spread function (PSF) or line spread function (LSF), which are discussed in a later section, by a Fourier transform. The MTF is usually presented as a graph showing the modulation transfer function versus sp ...
... frequencies of interest (see figure 1 below). It is mathematically obtainable from the point spread function (PSF) or line spread function (LSF), which are discussed in a later section, by a Fourier transform. The MTF is usually presented as a graph showing the modulation transfer function versus sp ...
Materialanalytik Praktikum Ellipsometry B508
... the electric field vector E is rotating around the axis of propagation. Its amplitude however is not constant, as in case ii), therefore the projection of the movement describes an ellipse. Cases i) and ii) can be seen as special cases of case iii). 2.2. Reflection of polarized light The two polariz ...
... the electric field vector E is rotating around the axis of propagation. Its amplitude however is not constant, as in case ii), therefore the projection of the movement describes an ellipse. Cases i) and ii) can be seen as special cases of case iii). 2.2. Reflection of polarized light The two polariz ...
Optical Processing for Pattern Properties
... FIG.3. TWOsamples of regular A and irregular B distribution of straight lines with corresponding spectra C and D.In E and F are shown the corresponding angular intensity distributions. The curves G and N shows the effect of decreasing the length of the vertical lines to half their original value G ...
... FIG.3. TWOsamples of regular A and irregular B distribution of straight lines with corresponding spectra C and D.In E and F are shown the corresponding angular intensity distributions. The curves G and N shows the effect of decreasing the length of the vertical lines to half their original value G ...
Computer-generated holograms for three
... are also wave-oriented methods to calculate object fields in which fields emitted from objects defined as planar segments9,10 or 3-D distributions of field strength11 are calculated by methods based on wave optics. The major advantage of wave-oriented methods is that they can use a fast Fourier tran ...
... are also wave-oriented methods to calculate object fields in which fields emitted from objects defined as planar segments9,10 or 3-D distributions of field strength11 are calculated by methods based on wave optics. The major advantage of wave-oriented methods is that they can use a fast Fourier tran ...
Coherence scanning interferometry: linear theory of surface
... The theory that underpins this work is based on a linear theory of 3D imaging that was first published in the context of optical holography by Wolf [12], and Dandliker and Weiss [13]. Using this approach the performance of 3D imaging techniques including digital holography, confocal microscopy, CSI, ...
... The theory that underpins this work is based on a linear theory of 3D imaging that was first published in the context of optical holography by Wolf [12], and Dandliker and Weiss [13]. Using this approach the performance of 3D imaging techniques including digital holography, confocal microscopy, CSI, ...
Strehl ratio for primary aberrations: some analytical results for
... first kind.8 However, this series converges rapidly, and only a few terms need be considered for adequate precision. The Strehl ratio for classical astigmatism is derived in Appendix A as an example of the results given in Table 1. The results for curvature of field or defocus and distortion or tilt ...
... first kind.8 However, this series converges rapidly, and only a few terms need be considered for adequate precision. The Strehl ratio for classical astigmatism is derived in Appendix A as an example of the results given in Table 1. The results for curvature of field or defocus and distortion or tilt ...
Document
... Snell's law can be used to calculate how much the light will bend on travelling into the new medium. If the interface between the two materials represents the boundary between air (n ~ 1) and water (n = 1.33) and if angle of incidence = 45°, using Snell's Law the angle of refraction = 32°. The equat ...
... Snell's law can be used to calculate how much the light will bend on travelling into the new medium. If the interface between the two materials represents the boundary between air (n ~ 1) and water (n = 1.33) and if angle of incidence = 45°, using Snell's Law the angle of refraction = 32°. The equat ...
EEE440 Modern Communication Systems Optical Fibre
... The higher order modes, the bouncing rays, tend to leak into the cladding as they propagate down the fiber optic cable. They lose some of their energy into heat and results in an attenuated output signal. The bouncing rays and the lowest order mode, traveling down the center axis, are all traversing ...
... The higher order modes, the bouncing rays, tend to leak into the cladding as they propagate down the fiber optic cable. They lose some of their energy into heat and results in an attenuated output signal. The bouncing rays and the lowest order mode, traveling down the center axis, are all traversing ...
Rank-order and morphological enhancement of image details with
... hybrid morphological processor the real-time programmable processing of limited-size images was presented.12 A binary input image and a structuring element were introduced into an optical system by means of two SLM’s. The use of a lenslet array illuminator yielded a convolution due to angular projec ...
... hybrid morphological processor the real-time programmable processing of limited-size images was presented.12 A binary input image and a structuring element were introduced into an optical system by means of two SLM’s. The use of a lenslet array illuminator yielded a convolution due to angular projec ...
Note
... See cheap astronomical telescopes. This is a relative question depending on the size of the object and its distance from the lens. Aperture stop: an opening or diaphragm that restricts the amount of light reaching the image. It may be the rim of the lens itself. Field stop: an element limiting the a ...
... See cheap astronomical telescopes. This is a relative question depending on the size of the object and its distance from the lens. Aperture stop: an opening or diaphragm that restricts the amount of light reaching the image. It may be the rim of the lens itself. Field stop: an element limiting the a ...
Articles of Confederation
... This image shows the Virginia Declaration of Rights which was adopted on May 15, 1776. This image is courtesy of fineartamerica.com. ...
... This image shows the Virginia Declaration of Rights which was adopted on May 15, 1776. This image is courtesy of fineartamerica.com. ...
31.3. Rear Projection - Contrast and Gain
... In full color, light valve systems, reasonable color separation efficiency is usually achieved with dichroic mirrors, which reflect a well-defined bandwidth from a portion of the spectrum and transmit the rest. Dichroic mirrors can perform two functions in projection display technology: such as spli ...
... In full color, light valve systems, reasonable color separation efficiency is usually achieved with dichroic mirrors, which reflect a well-defined bandwidth from a portion of the spectrum and transmit the rest. Dichroic mirrors can perform two functions in projection display technology: such as spli ...
FINCH: Fresnel Incoherent Correlation Hologram
... although it shows promising prospects, is relatively slow since it is based on capturing tens of scene images from different view angles. Another method is called scanning holography (Poon & Korpel, 1979; Schilling et al., 1997; Poon, 2004; Rosen et al., 2006; Poon, 2007) in which a pattern of Fresn ...
... although it shows promising prospects, is relatively slow since it is based on capturing tens of scene images from different view angles. Another method is called scanning holography (Poon & Korpel, 1979; Schilling et al., 1997; Poon, 2004; Rosen et al., 2006; Poon, 2007) in which a pattern of Fresn ...
Optical aberration
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An optical aberration is a departure of the performance of an optical system from the predictions of paraxial optics. In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.Aberration leads to blurring of the image produced by an image-forming optical system. Makers of optical instruments need to correct optical systems to compensate for aberration.The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.