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Airy disk
In signal processing, apodization (from Greek "removing the foot") is the modification of the shape of a mathematical function. The function may represent an electrical signal, an optical transmission, or a mechanical structure. In optics, it is primarily used to remove Airy disks caused by diffraction around an intensity peak, improving the focus.
The term apodization is used frequently in publications on Fourier-transform infrared (FTIR) signal processing. An example of apodization is the use...
The Smooth Trans Focus (STF) technology in photographic lenses uses an apodization filter to realize notably smooth bokeh with rounded out-of-focus highlights...
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...
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...
signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is zero-valued...
similar Hamming function, named after Richard Hamming. Window function Apodization Raised cosine distribution Raised-cosine filter Nuttall 1981, p 84 (3)...
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...
directly imaging exoplanets. The coronagraph uses a Phase Induced Amplitude Apodization (PIAA) design which means it will be able to image planets closer to...
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...
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...
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...
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...
aberration budget. Wavelength dependence of reflectance also affects the apodization, or illumination distribution across the pupil (for different angles);...
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...
common for consumer DACs to include user selectable filters, including apodizing filters intended to improve time domain transient response without knowledge...
apertures, it has no secondary rings. This can be used in a process called apodization - the aperture is covered by a filter whose transmission varies as a...
infinity. Minimum chromatic aberration. 105 f/2 (t/3.2) Full frame 105 Smooth Trans Focus (STF) 2016 Built in apodization element for creative photography....
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