Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1996-08-27
1999-10-26
Le, N.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347247, 347251, 347240, 347131, 358298, G03G 502
Patent
active
059737190
ABSTRACT:
Disclosed is a laser scanning unit for emitting a laser beam which scans on a surface to be scanned within a predetermined scanning range. The laser scanning unit has a laser diode, and a laser diode controller for controlling the laser diode to emit the laser beam. The laser beam has an intensity corresponding to one of a predetermined graduation steps within a intensity range defined by a first intensity and a second intensity greater than the first intensity in accordance with an image data. The laser scanning unit is further provided with a controller which is capable of shifting the intensity range by changing the first and second intensities.
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Araki Yoshiyuki
Maruyama Takeshi
Asahi Kogaku Kogyo Kabushiki Kaisha
Le N.
Pham Hai C.
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