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1. (WO2018141380) LASER UNITS

Pub. No.:    WO/2018/141380    International Application No.:    PCT/EP2017/052164
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Thu Feb 02 00:59:59 CET 2017
IPC: G06K 15/12
Applicants: HP INDIGO B.V.
Inventors: YUNGER, Yuval
KIMELMAN, Benny
GELLER, Tsahi
Title: LASER UNITS
Abstract:
A method of controlling a laser unit in order to negate heat build-up caused by a laser modulation current, and eliminating artifacts caused by image related thermal effects. Upon receipt of an activation signal, an activation current is applied which causes lasing of the laser unit. Upon receipt of a deactivation signal, the method ceases lasing by selectively applying either an idle current below the activation current, or a cooling current below the idle current.