In a laser projection system, the optical or scanning angle is related to the throw distance

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In a laser projection system, the optical or scanning angle θ is related to the throw distance D from the scanner to the screen and the projected image width W by the equation

 csc 0 - cot 0


(a) Show that the projected image width is given by

W = 2D tan


(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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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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