Lines radiating from bright light sources in photographs
Diffraction spikes from various stars seen on an image taken by the Hubble Space TelescopeDiffraction spikes caused in James Webb Space Telescope due to its hexagonal aperture and three support struts
Diffraction spikes are lines radiating from bright light sources, causing what is known as the starburst effect[1] or sunstars[2] in photographs and in vision. They are artifacts caused by light diffracting around the support vanes of the secondary mirror in reflecting telescopes, or edges of non-circular camera apertures, and around eyelashes and eyelids in the eye.
While similar in appearance, this is a different effect to "vertical smear" or "blooming" that appears when bright light sources are captured by a charge-coupled device (CCD) image sensor.
^Cheong, Kang Hao; Koh, Jin Ming; Tan, Joel Shi Quan; Lendermann, Markus (2018-11-16). "Computational Imaging Prediction of Starburst-Effect Diffraction Spikes". Scientific Reports. 8 (1): 16919. Bibcode:2018NatSR...816919L. doi:10.1038/s41598-018-34400-z. ISSN 2045-2322. PMC 6240111. PMID 30446668.
^Brockway, Don (November 1989). "Scenics". Popular Photography: 55.
fine these support rods are they diffract the incoming light from a subject star and this appears as diffractionspikes which are the Fourier transform...
Cloud iridescence Coherent diffraction imaging Diffraction from slits DiffractionspikeDiffraction vs. interference Diffractive solar sail Diffractometer...
directions (i.e., different diffraction angles). The emerging coloration is a form of structural coloration. The directions or diffraction angles of these beams...
angled diffractionspikes at the focal plane of the instrument for each bright image element. As the instrument's focus is changed, the central spike appears...
appears. This artifact is formed by internal diffraction on the image sensor, which acts like a diffraction grating. Unlike true lens flare, this artifact...
with segmented mirrors also exhibit diffractionspikes due to diffraction from the mirrors' edges. As before, two spikes are perpendicular to each edge orientation...
filter that creates patterns of lines to radiate from bright points Diffractionspike, or a line radiating from a bright light source that can occur in...
causes a loss in contrast in the image due to diffraction effects of the obstruction as well as diffractionspikes caused by most secondary support structures...
spacing between the elongated spikes on the left and the right. A negative image can sometimes show the diffractionspikes more clearly. The enlarged view...
a porro prism erecting system. This roof edge diffraction effect may also be seen as a diffractionspike perpendicular to the roof edge generated by bright...
reflectance model Differential group delay DiffractionDiffraction grating DiffractionspikeDiffractive optics Digital handheld refractometer Dispersion...
interior. The name is derived from the polygon's similarity to the diffractionspikes of astronomical stars, but specific uses may exploit the connection...
is U+2733. The 8-pointed diffractionspikes of the star images from the James Webb Space Telescope are due to the diffraction caused by the hexagonal shape...
secondary and eliminates the need for a 'spider' that would cause diffractionspikes. The disadvantage is that, if all spherical surfaces are used, such...
secondary mirror in the light path. This obstruction and also the diffractionspikes caused by the support structure (called the "spider") of the secondary...
a porro prism erecting system. This roof edge diffraction effect may also be seen as a diffractionspike perpendicular to the roof edge generated by bright...
distortion from the spider mounts, commonly seen as cross-shaped diffractionspikes radiating from bright stars seen in astronomical images. List of telescope...
addition, the support for the secondary (the spider) may introduce diffractionspikes in images. The radii of curvature of the primary and secondary mirrors...
Telescope image of Sirius A and Sirius B. The white dwarf can be seen to the lower left. The diffractionspikes and concentric rings are instrumental effects....
ISSN 0004-637X. Martin, G. (1883). "G. DELSAULX. — Sur une propriété de la diffraction des ondes planes; Annales de la Société scientifique de Bruxelles; 1882"...
left of the bright quasar, and the four straight lines pointing outward from the central source are diffractionspikes caused by the telescope optics....
name star polygon reflects the resemblance of these shapes to the diffractionspikes of real stars. A regular star polygon is a self-intersecting, equilateral...
hybrid ONN that combines the power efficiency and parallelism of optical diffraction and the configurability of optical interference. Taichi offers 13.96...
many of the false objects due to artifacts around the halos and diffractionspikes of the bright stars were identified and corrected as well as a number...
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