LASER ARRAY IMAGING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a small laser array imaging apparatus in which the quantity of light can be corrected with high accuracy. SOLUTION: A plurality of laser beams 3 emitted from each laser element 2a of a semiconductor laser array 2 are partially reflected on a half mirror 5 positioned between the second lens 41 and the stop 42 of a focus optical system 4 and the remainder transmits the half mirror 5. Each laser beam 3 reflected on the half mirror 5 is directed toward a quantity of light detector 7 located at a position on the optical axis equivalent to the stop 42 with respect to the half mirror 5 and the quantity of light is detected. A quantity of light correcting circuit 11 outputs a signal for correcting the quantity of light of the laser element 2a based on the detection results of the quantity of light detector 7.