Explore: Defocus

binoculars. Optically, defocus refers to a translation of the focus along the optical axis away from the detection surface. In general, defocus reduces the sharpness

mask flatness in the local slope, coupled with wafer defocus. More significantly, mask defocus has been found to result in large overlay errors. In particular

coefficient, λ is the electron wavelength, and Δf is the defocus. In transmission electron microscopy, defocus can easily be controlled and measured to high precision

The Nikon 105 mm DC-Nikkor and 135 mm DC-Nikkor lenses (DC stands for "Defocus Control") have a control ring that permits the overcorrection or undercorrection

use of motion parallax, they have instead evolved a method called image defocus. Of the four photoreceptor layers in the retina, the two closest to the

probably was not noticed on set, is now painfully obvious to the viewers. The defocus transition is a type of transition accomplished by rolling the lens focus

W(k)=-z\lambda k^{2}/2+C_{s}\lambda ^{3}k^{4}/4} z {\displaystyle z} = the defocus of the objective lens (using the convention that underfocus is positive

depth estimation algorithms based on defocus and blurring. Some jumping spiders are known to use image defocus to judge depth. When an object is visible

useful in drawing the eye to a point on the page. Under optical blur from defocus, a Siemens star (like any periodic pattern) gives rise to the phenomenon

compilation-tracks, original work) on many labels, full-length CDs on such labels as deFocus records (Great Britain), Merck Records (Miami, Florida, US), U-cover (Belgium)