rotating wedge

rotating wedge

[′rō‚tād·iŋ ′wej]
(optics)
A circular optical wedge mounted to be rotated in the path of light to divert the line of sight to a limited degree.
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References in periodicals archive ?
The pushing component of the rotating wedge, angled to the face of the cooler, creates a gentle motion which transfers the first row into the cooler while "running full back" for the second row.
The process allows an initial row of 29 bottles to form in front of the cooler while the second row is formed on the delivery table top conveyor by utilizing three continuous motion, rotating wedges.
A He-Ne laser beam focused down to spot, performs circular scanning by a rotating wedge prism of the sample measurement volume.