Optical scanning apparatus, system and method

摘要

An optical scanning apparatus, a system and a method of optical scanning independently determine illumination spot size and spacing. The apparatus includes an array of optical emitters to provide a plurality of optical beams and a plurality of microlenses to receive the optical beams. The microlenses form an intermediate image of the array at substantially unity array magnification. The apparatus further includes an adjustable collimator to receive the plurality of optical beams from the intermediate image, a beam scanner to scan the optical beams in an in-scan direction, and a scan lens to focus the scanned optical beams. An arrangement of illumination spots forms an image of the array.

主权项

1. An optical scanning apparatus comprising:
an array of optical emitters to provide a plurality of optical beams; a plurality of microlenses to receive the optical beams and form an intermediate image of the array at substantially unity array magnification, the intermediate image comprising a plurality of spots, each spot corresponding to a different one of the optical beams; a collimator to receive the plurality of optical beams from the intermediate image; a beam scanner to scan the optical beams received from the collimator in an in-scan direction; and a scan lens to focus the scanned optical beams to form an arrangement of illumination spots on a scanning surface, the arrangement of illumination spots forming an image of the array.