defocus

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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 ?
DVn now has patent priority for a wide range of applications that use monoscopic or multiplet source frames for combining images, when one uses blurring or defocusing for luminance modulation during image-stacking processing.
6] modes- iA Plus mode allows users to adjust defocusing area in the background, exposure compensation and white balance for more flexible control.
Bleeding was controlled by increasing the spot size on the micromanipulator and defocusing the laser beam.
When companies are acquiring other companies there is always a defocusing of strategy and customers inevitably get left in the lurch," he said.
PENTAX's Varifocal Plus helps eliminate defocusing problems in crucial installation sites.
First, such forecasts yield a better management of the thermodynamic cycle because it becomes possible to dynamically fine tune some of its parameters such as the flow rate of the working fluid or the defocusing mirrors.
Ultrasound is still limited--no matter how many dimensions it has--by shadowing, defocusing, and changes in ultrasound signals while passing through tissue, he said.
Ironically, to eliminate autofocusing systems, they devised a defocusing lens.
It should be emphasised that while in Old English, sculan constituted a structure based on conceptual subject (divine or human), in Middle English the process of defocusing of divine conceptual subject changed the overall semantic dimension of shulen.
Cameras are protected because the system instantly recognizes the repositioning, covering, or defocusing of a camera.
Up to now there is no extension of this theory to hyperbolic equations, but the results in [6] for the defocusing NLS equation indicate that similar behavior is to be expected for hyperbolic equations (both KdV and NLS are hyperbolic).
The influence of welding speed was investigated at the optimum laser power (2 kW) and zero defocusing distance.