defocus


Also found in: Dictionary, Medical, Wikipedia.

defocus

[dē′fō·kəs]
(engineering)
To make a beam of x-rays, electrons, light, or other radiation deviate from an accurate focus at the intended viewing or working surface.
References in periodicals archive ?
This change in peripheral refraction from predominantly hyperopic to predominantly myopic peripheral retinal defocus has been reported in several studies.
11m refract multiple times in the spanwise direction, not unlike wave trapping (again, however, not strictly trapped), and ultimately defocus, whereas rays initiated farther from the vertical symmetry plane primarily focus but would do so further downstream and not have been seen in the previous experiments.
47) Also, retinal dopamine levels are increased in positive lens-induced hyperopia, suggesting that the retina is able to discern the sign of defocus, whether it be myopic or hyperopic, and that dopamine levels are decreased or increased respectively in response to that defocus.
1/16,000 sec (electronic) not only to capture spur-of-the-moment activity and fast moving subjects but also to use high-speed lens with open aperture even in the outdoors, to give impressive defocus.
We doubt that every time a scandal is about to emerge, the Government stages scenarios to defocus the attention of the public.
The camera also comes with a number of creative effects - background defocus, HDR-art, oil painting mode, sketch, colour select, handheld night-shot, multi-shot 16 (VGA, 30fps), as well as full manual controls.
It is also possible to look images nicer even after shooting with Artistic Retouch (Creative Retouch, Defocus Effect, Color/Brightness Control), Beauty Retouch and Auto Retouch.
Ilija Dimovski, from VMRO-DPMNE's communication center, said he knew nothing about the case and that the opposition was trying to defocus the public by spreading speculations.
Both models incorporate background defocus and superior auto shooting modes.
She added that the company felt making its salespeople sell vertical solutions would defocus them from their market space.
The Background Defocus application was previously available only for Sony's flagship phone Xperia Z2 but now the app has been handed to all Xperia smartphones running v4.
Unique to Sony, Photo Creativity puts intuitive control over settings like Picture Effect and Background Defocus within everyone's reach.