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The 22 pages that link to Point spread function, each with the reason it gives.

• Angular resolutionRelated: Overlapping point-spread functions explain why nearby sources merge.

• Spatial resolutionRelated: Its width and shape show how the system blurs fine spatial details.

• Diffraction limitRelated: Its width and shape determine how diffraction blurs fine image detail.

• Aperture synthesisRelated: Incomplete sampling gives the reconstructed image sidelobes and a non-ideal response to point sources.

• Astronomical seeingRelated: The seeing-limited point-spread function describes how atmospheric blur appears in an image.

• Rayleigh criterionNarrower topic: Two point sources are resolved by comparing their combined point spread functions.

• Impulse responseRelated: In linear imaging, it plays the role of a spatial impulse response.

• Optical resolutionRelated: Its width and shape determine how neighboring point images overlap.

• Confocal microscopyRelated: The confocal point spread function determines how sharply the microscope resolves structures.

• Super-resolution microscopyRelated: Its width determines how signals from nearby emitters overlap.

• Direct imaging of exoplanetsBroader topic: A star’s point spread function determines how much its light overlaps a nearby planet.

• Airy diskRelated: For an ideal circular aperture, this function has the Airy pattern as its intensity profile.

• Direct imagingRelated: Residual structure in a star’s point spread function can hide or imitate faint companions.

• Fourier opticsRelated: Its Fourier transform gives the system's optical transfer function under incoherent imaging.

• Image reconstructionRelated: It characterizes blur that reconstruction may need to reverse.

• Abbe diffraction limitRelated: The overlapping point spread functions of nearby sources explain why they become indistinguishable.

• Fluorescence correlation spectroscopyRelated: The optical detection profile shapes the effective FCS observation volume and its correlation curve.

• Eric BetzigRelated: PALM estimates molecule positions by fitting each fluorescent spot’s point spread function.

• Diffraction-limited systemRelated: It captures the diffraction pattern and any residual aberrations in the system's image.

• Stefan HellRelated: STED narrows the effective fluorescent spot, sharpening the microscope’s point spread function.

• de Vaucouleurs's lawRelated: Reliable profile fitting must account for image blurring by this response.

• High resolutionRelated: Its width shows how optical blur limits the separation of nearby details.