抄録
Optics and related technologies used in laser imagers are discussed. First how optics propagates a laser beam is epitomized. The theory of Gaussian beam propagation is good for most gas lasers and solid-state lasers; however, a laser beam radiated by a high-power laser diode with a long emitter has to be dealt with another way. Second three types of laser scanning systems are reviewed. Choice of a scanner is essential to optimization of a laser imaging system. Finally the features of some latest products are mentioned to exemplify that laser imager design and media characteristics are heavily dependent on each other.
