How do we handle the background effects when ( lets say ) white paper or a mirror-surface object is used?
Ans. When white paper is used as the background, mount the fiber unit 500mm or more from the background. At this distance the background is not detectable. When a mirror-surfaced object is used as the background, however, the background effects detection even if the fiber unit is mounted 500mm or more from the background. When a mirrored-surfaced object is used as the background, tilt the fiber unit slightly so that light reflected off the background does not directly enter the fiber unit.
