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公开(公告)号：US4811348A
公开(公告)日：1989-03-07
申请号：US153772
申请日：1988-02-08
申请人： Akira Arimoto , Masahiro Ojima , Susumu Saito
发明人： Akira Arimoto , Masahiro Ojima , Susumu Saito
CPC分类号： G11B7/126 , G06K15/1261 , H01S5/0683 , H01S5/4025 , H01S5/06835
摘要： A semiconductor laser array device in which a single photodetector is provided near the exit ports on one side of the semiconductor laser array device that has a plurality of semiconductor lasers arranged close to each other, the light outputs from each of the laser light sources are detected in a time-sharing manner, and the corresponding lasers are controlled by feedback relying upon the detected signals, so that outputs of the lasers are stabilized.
摘要翻译： 一种半导体激光器阵列器件，其中单个光电检测器设置在半导体激光器阵列器件的一侧上的出口处附近，该半导体激光器阵列器件具有彼此靠近布置的多个半导体激光器，检测来自每个激光源的光输出 以分时方式，并且相应的激光器通过依赖于检测到的信号的反馈进行控制，使得激光器的输出稳定。
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公开(公告)号：US4712218A
公开(公告)日：1987-12-08
申请号：US590871
申请日：1984-03-19
申请人： Nobutaka Ohnuki , Masahiro Ojima , Akira Arimoto , Naoki Chinone
发明人： Nobutaka Ohnuki , Masahiro Ojima , Akira Arimoto , Naoki Chinone
CPC分类号： G11B7/126 , G11B7/13 , H01S5/06216 , H01S5/0654
摘要： In order to suppress laser noise, a semiconductor laser oscillating in a single mode under direct-current drive is driven by a signal with a high frequency current superposed on a direct current. In particular, the laser is driven to be brought into continuous wave pulsed oscillation at a pulse width of at most 1.2 ns to achieve the desired noise suppression.
摘要翻译： 为了抑制激光噪声，在直流驱动下以单模振荡的半导体激光器由叠加在直流电流上的高频电流的信号驱动。 特别地，驱动激光器以至多1.2ns的脉冲宽度进入连续波脉冲振荡，以实现所需的噪声抑制。
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公开(公告)号：US5321435A
公开(公告)日：1994-06-14
申请号：US144508
申请日：1993-11-02
CPC分类号： G02B27/0031 , G02B26/10 , H04N1/0402
摘要： A light scanning device has a light deflector for deflecting in a scanning mode a light beam outputted by a light source; and an optical system for image-forming on a scanning medium the light beam deflected by the light deflecting means, with a convergent or divergent light beam in an optical path between the light source and the scanning medium. A plane-parallel plate is moved into and out of the optical path of the convergent or divergent light beam, so as to change a beam spot diameter on the scanning medium.
摘要翻译： 光扫描装置具有用于以扫描模式偏转由光源输出的光束的光偏转器; 以及用于在扫描介质上成像由光偏转装置偏转的光束的光学系统，在光源和扫描介质之间的光路中具有会聚或发散的光束。 平面平行板被移入和缩小会聚或发散光束的光路，从而改变扫描介质上的光点直径。
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4.发明授权
公开(公告)号：US5289001A
公开(公告)日：1994-02-22
申请号：US995011
申请日：1992-12-22
申请人： Akira Arimoto , Susumu Saito
发明人： Akira Arimoto , Susumu Saito
CPC分类号： H04N1/40037 , B41J2/473 , G02F1/2955 , H04N1/036 , H04N1/0411 , H04N1/0443 , H04N1/0446 , H04N1/19 , H04N1/1135
摘要： In a variable density scanning apparatus, a variable focal distance device is provided in a scanning optical system. This variable focal distance device is formed of a light waveguide having a plurality of electrodes provided of which the lengths along the direction of incident laser beam are decreased or increased with the increase of the distance from the central electrode. The voltage to be applied between the electrodes is controlled in accordance with a desired dot pattern so as to change the refractive index of the light waveguide through which the laser beam is passed, thereby effectively changing the focal distance so that the diameter of the scanning laser beam spot can be changed in one dimension.
摘要翻译： 在可变密度扫描装置中，在扫描光学系统中设置可变焦距装置。 该可变焦距装置由具有多个电极的光波导形成，其中沿着入射激光束的方向的长度随着距离中心电极的距离的增加而减小或增加。 根据期望的点图案控制施加在电极之间的电压，以便改变激光束通过的光波导的折射率，从而有效地改变焦距，使得扫描激光器的直径 束斑可以在一个维度上改变。
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5.发明授权
公开(公告)号：US5196697A
公开(公告)日：1993-03-23
申请号：US631257
申请日：1990-12-20
申请人： Akira Arimoto , Susumu Saito
发明人： Akira Arimoto , Susumu Saito
IPC分类号： B41J2/47 , G02B26/12 , G02F1/295 , G11B7/125 , H04N1/036 , H04N1/04 , H04N1/113 , H04N1/19 , H04N1/40
CPC分类号： H04N1/40037 , B41J2/473 , G02B26/123 , G02B26/127 , G02F1/2955 , H04N1/036 , H04N1/0402 , H04N1/0411 , H04N1/0443 , H04N1/0446 , H04N1/19 , H04N1/1135
摘要： In a variable density scanning apparatus, a variable focal distance device is provided in a scanning optical system. This variable focal distance device is formed of a light waveguide having a plurality of electrodes, of which the lengths along the direction of an incident laser beam are decreased or increased with the increase of the distance from the central electrode. The voltage to be applied between the electrodes is controlled in accordance with a desired dot pattern so as to change the refractive index of the light waveguide through which the laser beam is passed, thereby effectively changing the focal distance so that the diameter of the scanning laser beam spot can be changed in one dimension.
摘要翻译： 在可变密度扫描装置中，在扫描光学系统中设置可变焦距装置。 该可变焦距装置由具有多个电极的光波导形成，其中沿着入射激光束的方向的长度随着距离中心电极的距离的增加而减小或增加。 根据期望的点图案控制施加在电极之间的电压，以便改变激光束通过的光波导的折射率，从而有效地改变焦距，使得扫描激光器的直径 束斑可以在一个维度上改变。
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公开(公告)号：US4806951A
公开(公告)日：1989-02-21
申请号：US153005
申请日：1988-02-08
申请人： Akira Arimoto , Susumu Saito , Takeshi Mochizuki
发明人： Akira Arimoto , Susumu Saito , Takeshi Mochizuki
CPC分类号： G06K15/1261 , G06K2215/111
摘要： An optical printer using laser beams, wherein, when a plurality (n) of laser beams are used at once to carry out a scanning operation, the positions of spots of said laser beams in both the primary scanning direction and sub-scanning direction are set so as to have the relation l=(n-1)a+m.multidot.n.multidot.a, wherein m is a positive integer (m.gtoreq.1); a the distance between the adjacent scanning lines in the sub-scanning direction on the printing surface of the optical printer after a printing operation; and l the distance between the adjacent laser beams in the sub-scanning direction on the surface of a photosensitive drum, whereby a high-quality printing effecting no overlapping and omission of images can be obtained even if the distance between the adjacent laser beams is increased during a scanning operation using a plurality of laser beams at once.
摘要翻译： 一种使用激光束的光学打印机，其中，当一次使用多个（n）个激光束进行扫描操作时，设定所述激光束在主扫描方向和副扫描方向上的位置 以便具有关系l =（n-1）a + mxnxa，其中m是正整数（m> / = 1）; 在打印操作之后在所述光学打印机的打印表面上的副扫描方向上的相邻扫描线之间的距离; 以及l在感光鼓的表面上的副扫描方向上的相邻激光束之间的距离，由此即使相邻激光束之间的距离增加，也可以获得不影响重叠和省略的高质量打印 在使用多个激光束的扫描操作期间。
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公开(公告)号：US4561717A
公开(公告)日：1985-12-31
申请号：US261760
申请日：1981-05-08
申请人： Keiji Kataoka , Susumu Saito , Akira Arimoto , Akira Hashimoto , Kimio Tatsuno
发明人： Keiji Kataoka , Susumu Saito , Akira Arimoto , Akira Hashimoto , Kimio Tatsuno
CPC分类号： H04N1/2036 , G02B26/123 , H04N1/203 , H04N1/506 , H04N1/1135 , H04N1/12
摘要： An optical system provided with a single optical scanner for separating a plurality of laser beams from each other and for leading the separated laser beams to different recording materials to record information thereon is disclosed in which cylindrical lenses are provided in front of the recording materials in such a manner that a predetermined number of ones among the laser beams pass through the cylindrical lenses, respectively.
摘要翻译： 公开了一种设置有单个光学扫描仪的光学系统，用于将多个激光束彼此分离并将分离的激光束引导到不同的记录材料以记录信息，其中在记录材料的前面设置有柱面透镜 激光束中的预定数量的光束分别通过柱面透镜的方式。
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公开(公告)号：USRE36841E
公开(公告)日：2000-08-29
申请号：US755656
申请日：1996-11-25
申请人： Akira Arimoto , Susumu Saito , Takeshi Mochizuki
发明人： Akira Arimoto , Susumu Saito , Takeshi Mochizuki
CPC分类号： G06K15/1261 , H04N1/113 , H04N2201/04755
摘要： In a laser printer wherein a photoconductive drum is scanned by utilizing a plurality of laser beams, there are detected spacings between the plural laser beams, such detection being confined to a blanking time. On the basis of the detected results, the spacings between the plural laser beams are controlled; and this state is maintained for a printing time. With this arrangement, it is possible to accurately detect the spacings between the plural laser beams thereby to obtain the practicable laser printer employing the plural laser beams.
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9.发明授权
公开(公告)号：US5809053A
公开(公告)日：1998-09-15
申请号：US675479
申请日：1996-07-03
CPC分类号： H01S5/10 , H01S5/0425 , H01S5/2231 , H01S2301/18 , H01S5/0421 , H01S5/0655 , H01S5/1064 , H01S5/16 , H01S5/4031
摘要： A semiconductor laser device is disclosed, in which two semiconductor layers of different conduction types are formed on a semiconductor substrate, an active semiconductor layer having a forbidden band width narrower than the two semiconductor layers is formed between the two semiconductor layers, and a waveguide encloses the light in a plane parallel to the active layer. The waveguide includes at least two regions of different widths. The wider one of the waveguide regions is located in the vicinity of the end surface of the semiconductor laser. A relation holds that .pi./6
摘要翻译： 公开了一种半导体激光器件，其中在半导体衬底上形成两种不同导电类型的半导体层，在两个半导体层之间形成具有比两个半导体层窄的禁带宽的有源半导体层，并且波导封装 平行于有源层的平面中的光。 波导包括至少两个不同宽度的区域。 较宽的一个波导区域位于半导体激光器的端面附近。 关系式表示pi / 6
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公开(公告)号：US5600475A
公开(公告)日：1997-02-04
申请号：US277747
申请日：1994-07-20
申请人： Takeshi Mochizuki , Susumu Saito , Akira Arimoto
发明人： Takeshi Mochizuki , Susumu Saito , Akira Arimoto
CPC分类号： G02B13/0005 , B41J2/471 , G02B26/125
摘要： An improved laser scanner has a scanning lens composed of a single lens element and at least one surface of that lens element is of such a geometry that the curvature in a direction normal to the scanning direction varies gradually in the scanning direction in accordance with the specific deflecting face of an optical deflector. This laser scanner experiences less curvature of the image plane and achieves high resolution.
摘要翻译： 改进的激光扫描器具有由单个透镜元件组成的扫描透镜，并且该透镜元件的至少一个表面具有这样的几何形状：垂直于扫描方向的方向上的曲率在扫描方向上根据具体的扫描方向逐渐变化 光偏转器的偏转面。 该激光扫描仪的图像平面曲率较低，达到高分辨率。
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