device oriented in a sentence

• :To simplify this and bring it into the realm of practical application outside of a compliance laboratory setting : The reference axis of most automotive and motorcycle lighting devices is reasonably easy to determine; it is " straight back " from the device " with the device oriented in space exactly as it is oriented when installed on the vehicle " . if you will place a sheet of fine-grid graph paper such that it forms a vertical plane at 90?to the lamp's reference axis, move the paper such that it just barely touches whatever part ( s ) of the lens protrude closest to the paper, illuminate the lamp, trace the blob ( s ) of light on the side of the paper opposite the lamp, and then calculate the area enclosed by your trace, you will have a close enough approximation of the device's EPLLA for most purposes.
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