Step-by-step Answer
PAGE: 493SET: ExercisesPROBLEM: 95
Please look in your text book for this problem Statement


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


Apply Half-angle formula:  .



Consider .

Throw distance and  projected image width is .

Substitute corresponding values in .


Optical angle is .

(a) .

(b) Optical angle is .


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