In a laser projection system, the optical or scanning
Chapter 7, Problem 95(choose chapter or problem)
In a laser projection system, the optical or scanning angle u is related to the throw distance D from the scanner to the screen and the projected image width W by the equation D = 1 2 W csc u - cot u (a) Show that the projected image width is given by W = 2D tan u 2 (b) Find the optical angle if the throw distance is 15 feet and the projected image width is 6.5 feet.
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