公开(公告)号：US20160343280A1

公开(公告)日：2016-11-24

申请号：US15139195

申请日：2016-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHISA SHIRAMIZU ,  TETSURO MIZUSHIMA ,  JUNICHI MUTOH ,  SUSUMU URAGAMI

IPC: G09G3/02 ,  G09G5/10 ,  G09G5/02 ,  H01S5/042

CPC classification number: G09G3/025 ,  G09G3/02 ,  H01S5/06216 ,  H01S5/4012 ,  H01S5/4093 ,  H04N9/31 ,  H04N9/3129

Abstract: A laser light source device includes a semiconductor laser, a current supplying unit to supply a driving current to the semiconductor laser, and a signal generator to generate current intensity data for setting an intensity of the driving current. The signal generator generates, for an input signal corresponding to continuous pixels for a same color, a plurality of sets of the current intensity data indicating current intensities different from each other, and transmits the plurality of sets of the current intensity data to the current supplying unit while sequentially switching the plurality of sets of the current intensity data. The current supplying unit drives the semiconductor laser based on the plurality of different sets of the current intensity data.

Abstract translation: 激光光源装置包括半导体激光器，向半导体激光器提供驱动电流的电流供给单元和产生用于设定驱动电流强度的电流强度数据的信号发生器。 信号发生器产生对应于相同颜色的连续像素的输入信号，指示当前强度数据彼此不同的多组当前强度数据，并将多组当前强度数据发送到电流供应 单元，同时顺序切换多组当前强度数据。 电流供应单元基于多个不同的当前强度数据集驱动半导体激光器。