obstruction to vision

obstruction to vision

[əb′strək·shən tə ′vizh·ən]
(meteorology)
In United States weather observing practice, one of a class of atmospheric phenomena, other than the weather class of phenomena, which may reduce horizontal visibility at the earth's surface; examples are fog, smoke, and blowing snow.
References in periodicals archive ?
The virtual image created by the SV-6 appears with minimal obstruction to vision so users can still focus on their work.
The virtual image created by MicroOptical's CV-1 Video Viewer appears with minimal obstruction to vision so users of AQUA's SnakeEye can visually inspect behind walls, inside ceilings, in-and-around pipes and machinery, under vehicles and aircraft, inside engine compartments, behind computer equipment, underneath automobile dashboards and other hard-to-reach areas.
These highly ergonomic displays enable hands-free viewing of electronic information through hidden optics, which magnify the image and present it to the eye with minimal obstruction to vision.
The user views the information through hidden optics, which magnify the image and present it to the eye with minimal obstruction to vision.