• Thumbnail for Apodization
    The term apodization is used frequently in publications on Fourier-transform infrared (FTIR) signal processing. An example of apodization is the use...
    9 KB (1,077 words) - 23:46, 21 July 2024
  • Thumbnail for Window function
    signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is zero-valued...
    73 KB (8,662 words) - 03:53, 27 April 2025
  • Thumbnail for Fiber Bragg grating
    to help with side-lobe suppression. This is apodization of the refractive index change. The term apodization refers to the grading of the refractive index...
    41 KB (5,656 words) - 01:00, 29 October 2024
  • Thumbnail for Bokeh
    choose between two diaphragms: one with 9 and another with 10 blades. An apodization filter is used to soften the aperture edges which results in a smooth...
    29 KB (2,922 words) - 17:12, 4 May 2025
  • Thumbnail for Smooth Trans Focus
    The Smooth Trans Focus (STF) technology in photographic lenses uses an apodization filter to realize notably smooth bokeh with rounded out-of-focus highlights...
    2 KB (217 words) - 23:24, 16 April 2024
  • Thumbnail for Minolta STF 135mm f/2.8 T4.5
    out-of-focus areas in the image. This is accomplished by the use of an apodization filter that provides the high-quality bokeh effect. The lens is not a...
    6 KB (575 words) - 14:26, 15 August 2024
  • Super-resolution imaging (SR) is a class of techniques that improve the resolution of an imaging system. In optical SR the diffraction limit of systems...
    28 KB (3,041 words) - 21:11, 14 February 2025
  • Thumbnail for Depth of field
    in the process. The lens design can be changed even more: in colour apodization the lens is modified such that each colour channel has a different lens...
    34 KB (4,439 words) - 11:38, 5 May 2025
  • Thumbnail for Hann function
    similarly-named Hamming function, named after Richard Hamming. Window function Apodization Raised cosine distribution Raised-cosine filter Nuttall 1981, p 84 (3)...
    10 KB (1,665 words) - 10:43, 28 January 2025
  • Thumbnail for Point spread function
    imaging, it is desired to suppress the side-lobes of the imaging beam by apodization techniques. In the case of transmission imaging systems with Gaussian...
    24 KB (3,269 words) - 15:47, 8 May 2025
  • function. This closely resembles the Bokeh-pleasing optical effect of the apodization filter in the Minolta/Sony STF 135 mm f/2.8 [T4.5]'s special-purpose...
    10 KB (1,241 words) - 20:41, 3 November 2023
  • Thumbnail for Diaphragm (optics)
    lenses, the sector aperture of Seibold's Dreamagon, or the circular apodization filter in the Minolta/Sony Smooth Trans Focus or Fujifilm APD lenses...
    11 KB (1,382 words) - 20:47, 4 April 2025
  • called root-raised-cosine filters. Raised cosine is a commonly used apodization filter for fiber Bragg gratings. Michael Zoltowski - Equations for the...
    7 KB (1,266 words) - 22:48, 13 December 2023
  • Thumbnail for Shutter (photography)
    the diaphragm is outside of the lens (like a focal plane shutter or apodization filter). The term diaphragm shutter has also been used to describe an...
    23 KB (3,251 words) - 18:34, 10 April 2025
  • Thumbnail for Subaru Telescope
    directly imaging exoplanets. The coronagraph uses a Phase Induced Amplitude Apodization (PIAA) design which means it will be able to image planets closer to...
    20 KB (2,028 words) - 03:43, 31 March 2025
  • Thumbnail for Soft focus
    distinct from the effect of lenses designed to render smooth bokeh using an apodization filter, such as the Minolta STF 135mm f/2.8 [T4.5]. As described in U...
    38 KB (3,401 words) - 18:05, 16 March 2025
  • diameter telescope-mounted coronagraph called PIAA (Phase Induced Amplitude Apodized Coronagraph) to suppress starlight in order to be able to detect fainter...
    9 KB (346 words) - 21:40, 31 March 2025
  • LPFGs, LPFGs with superstructures, chirped gratings, and gratings with apodization. Various LPFG-based devices have been developed: filters, sensors, fiber...
    3 KB (362 words) - 14:43, 20 March 2018
  • Thumbnail for Fourier-transform infrared spectroscopy
    by a function that approaches zero at the maximum OPD. This so-called apodization reduces the amplitude of any sidelobes and also the noise level at the...
    37 KB (4,802 words) - 15:22, 25 February 2025
  • has no secondary rings. This technique can be used in a process called apodization—the aperture is covered by a Gaussian filter, giving a diffraction pattern...
    24 KB (3,589 words) - 18:19, 7 October 2024
  • Thumbnail for Extreme ultraviolet lithography
    aberration budget. Wavelength dependence of reflectance also affects the apodization, or illumination distribution across the pupil (for different angles);...
    124 KB (14,509 words) - 11:47, 8 May 2025
  • Thumbnail for Airy disk
    {\displaystyle c\equiv {\sqrt {(k_{x}a)^{2}+(k_{y}b)^{2}}}.} Amateur astronomy Apodization Fraunhofer diffraction Bloom (shader effect) Newton's rings Optical unit...
    31 KB (4,806 words) - 03:52, 26 April 2025
  • Thumbnail for Horologium (constellation)
    Paul S. (2015). "Searching for Planets in Holey Debris Disks with the Apodizing Phase Plate". The Astrophysical Journal. 800 (1): 5. arXiv:1412.5179....
    28 KB (3,159 words) - 23:23, 1 March 2025
  • "High-contrast observations of brown dwarf companion HR 2562 B with the vector Apodizing Phase Plate coronagraph". Monthly Notices of the Royal Astronomical Society...
    9 KB (911 words) - 08:00, 18 February 2025
  • {\displaystyle {\frac {d}{2}}} . However, there exist techniques, such as apodization that may be used to reduce the near field size. Dreyer, T.; Krauss, W...
    2 KB (263 words) - 13:20, 17 July 2022
  • Thumbnail for Canon RF lens mount
    improve bokeh. According to Canon, the effect is similar to that of an apodization filter, but achieved through special lens coatings instead of a filter...
    59 KB (2,893 words) - 21:08, 7 May 2025
  • to reduce the effects of data-dependent processing artifacts, optical apodization and antenna array design. Due to the various applications of multi-dimensional...
    16 KB (3,396 words) - 23:33, 11 August 2024
  • Thumbnail for Fujifilm X-mount
    XF 56mm f/1.2 R APD: Similar to the earlier 56 mm f/1.2 R, but adds an apodizing filter to optimize bokeh for portrait shooting. Officially announced on...
    64 KB (3,354 words) - 22:17, 7 May 2025
  • Thumbnail for Wavelet
    x ( t ) {\displaystyle x(t)} . The window function may be some other apodizing filter, such as a Gaussian. The choice of windowing function will affect...
    54 KB (7,213 words) - 02:17, 25 February 2025
  • common for consumer DACs to include user selectable filters, including apodization filters intended to improve time domain transient response without knowledge...
    45 KB (4,176 words) - 14:30, 26 January 2025