Direct laser plate imaging systems may include a low power laser scanner, such as a HeNe laser, which reads and electronically stores printed matter from the paste up, and a high power ultraviolet laser writing unit which exposes an ultraviolet photosensitive coating on a lithographic plate in accordance with information stored in a computer. Such direct laser imaging processes save considerable amounts of labor and time and also eliminate costly silver-based films used in conventional and laser-to-film platemaking.

http://goo.gl/hE195

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laser plate imaging - http://goo.gl/wL2RA

laser plate imaging technology - http://goo.gl/AiEYT