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    • 1. 发明授权
    • Optical head and image recording apparatus including the same
    • 包括其的光头和图像记录装置
    • US5615198A
    • 1997-03-25
    • US416360
    • 1995-04-04
    • Hideji Kubokawa
    • Hideji Kubokawa
    • B41J2/44B41J2/45B41M5/26G06K15/02G06K15/12G11B7/125G11B7/135H04N1/40G11B7/00
    • B41J19/20B41J2/451B41J2/47G06K15/029G06K15/1209G06K15/1247G11B7/126G11B7/127G11B7/1372H04N1/40031H04N1/4005
    • A first optical head comprising: a laser diode (LD) array, including N LDs having N emitting portions respectively arranged in a line at a predetermined interval, for emitting N laser beams of single mode; an optical system for forming a single spot as a pixel on a recording medium from the N laser beams such that images of the N emitting portions are contracted and overlapped each other; and a driver for driving the N LDs according to a single video signal. A second optical head comprising: M LD arrays, each including N LDs having N emitting portions respectively arranged in a line and emitting N laser beams of single mode from the N emitting portions; an optical system for forming M single spots as M pixels on a recording medium from the M of N laser beams such that images of the N emitting portions of each LD arrays are contracted and overlapped each other on the recording medium; and a driver for driving the M LD arrays according to M video signals respectively. Image recording apparatus having a scanning portion using the first or second optical head are also disclosed. In a third optical head, if some of LDs in one LD array deteriorates, a CPU increases drive current supplied to other LDs to compensate the output power. When the drive current exceed the maximum, the CPU stops the recording operation and indicates information.
    • 一种第一光学头,包括:激光二极管(LD)阵列,其包括具有N个发射部分的N个LD,分别以预定间隔排列成一行,用于发射单个模式的N个激光束; 用于从N个激光束在记录介质上形成单个点作为像素的光学系统,使得N个发射部分的图像收缩并彼此重叠; 以及用于根据单个视频信号驱动N个LD的驱动器。 一种第二光头,包括:M个LD阵列,每个包括N个发射部分,分别排列成一行,并从N个发射部分发射单个模式的N个激光; 用于从N个激光束的M形成在记录介质上的M个单点作为M个像素的光学系统,使得每个LD阵列的N个发射部分的图像在记录介质上收缩并彼此重叠; 以及分别根据M个视频信号驱动M LD阵列的驱动器。 还公开了具有使用第一或第二光学头的扫描部分的图像记录装置。 在第三光头中,如果一个LD阵列中的一些LD劣化,则CPU增加提供给其它LD的驱动电流以补偿输出功率。 当驱动电流超过最大值时,CPU停止记录操作并指示信息。
    • 2. 发明授权
    • Image recording apparatus and optical recording head
    • 图像记录装置和光学记录头
    • US06330019B1
    • 2001-12-11
    • US09392653
    • 1999-09-09
    • Hideji Kubokawa
    • Hideji Kubokawa
    • B41J1514
    • B41J2/46
    • The terminations of the optical fibers are placed on columns L1 in the sub-scanning direction of a recording medium and fixed in such a way that columns L1 are stacked in multiple stages in the main scanning direction of the recording medium. In this way, the terminations form a matrix made up of 8 columns L1 in the sub-scanning direction of the recording medium and 16 rows L2 in the main scanning direction of the recording medium that intersect columns L1. The terminations of a plurality of optical fibers which belong to same columns L1 are arrayed with pitch P. With respect to a perpendicular that passes through center C of the termination of one optical fiber, center C of the termination that belongs to another column L1 and same row L2 at the same time is uniformly shifted by an amount of shift S in the sub-scanning direction. Thus, the present recording apparatus achieves improvements in both the recording speed and resolution at the same time.
    • 光纤的端子被放置在记录介质的副扫描方向上的列L1上,并且以这样的方式固定,使得列L1在记录介质的主扫描方向上多级堆叠。 以这种方式,终端形成由记录介质的副扫描方向上的8列L1构成的矩阵和与列L1相交的记录介质的主扫描方向上的16行L2。 属于同一列L1的多根光纤的终端以间距P排列。相对于通过一根光纤的终端的中心C的垂直线,属于另一列L1的终端的中心C和 同一行L2同时在副扫描方向上移位移位量S。 因此,本记录装置同时实现记录速度和分辨率的改善。