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    • 1. 发明专利
    • Method for driving surface emitting semiconductor laser and optical transmission module
    • 驱动表面发射半导体激光和光传输模块的方法
    • JP2009021459A
    • 2009-01-29
    • JP2007183875
    • 2007-07-13
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • UENO OSAMUSAKAMOTO AKIRASAKASAI KAZUHIRONAKAYAMA HIDEOMURAKAMI AKEMI
    • H01S5/042H01S5/183
    • H04B10/504H01S5/0427H01S5/06812H01S5/18311
    • PROBLEM TO BE SOLVED: To provide a method for driving a surface emitting semiconductor laser which can be driven at high speed while reducing power consumption.
      SOLUTION: A VCSEL (vertical-cavity surface-emitting laser diode) includes an active region that generates light, a resonator structure disposed such that it sandwiches the active region, and a driving electrode that provides power to the active region. The VCSEL has an internal resistance defined by voltage and current applied to the driving electrode. The method for driving the VCSEL includes a step of applying a modulation signal to the driving electrode of the VCSEL, in which the modulation signal has a current amplitude I
      F defined by a current value I
      L of a low level and a current value I
      H of a high level. The modulation signal is in a negative gradient region in which the internal resistance decreases in contrast to the increase of the current.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种用于驱动表面发射半导体激光器的方法,其可以在降低功耗的同时高速驱动。 解决方案:VCSEL(垂直腔表面发射激光二极管)包括产生光的有源区,设置成使其夹持有源区的谐振器结构以及向有源区提供电力的驱动电极。 VCSEL具有由施加到驱动电极的电压和电流限定的内部电阻。 用于驱动VCSEL的方法包括将调制信号施加到VCSEL的驱动电极的步骤,其中调制信号具有由电流值I L定义的电流幅度I F 为高电平的电流值I H 。 与电流增加相反,调制信号处于负梯度区域,其中内阻减小。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Surface emitting semiconductor laser
    • 表面发射半导体激光
    • JP2008028424A
    • 2008-02-07
    • JP2007266564
    • 2007-10-12
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • UEKI NOBUAKISAKAMOTO AKIRAYOSHIKAWA MASAHIRONAKAYAMA HIDEOOTOMA HIROKI
    • H01S5/183
    • PROBLEM TO BE SOLVED: To provide a surface-emitting semiconductor laser that can control polarization of a laser beam unidirectionally with a comparatively simple configuration and that has low threshold electric current and high power property, and to provide a refractive index waveguide type surface emitting semiconductor laser that can be manufactured easily and that is capable of oscillating fundamental lateral mode light having a high output. SOLUTION: The surface emitting semiconductor laser comprises: a semiconductor substrate on which a lower multi-layer mirror, an active layer region, and an upper multi-layer mirror that, together with the lower multi-layer mirror, structures a resonator are sequentially layered thereon; an upper electrode disposed on an upper layer of the upper multi-layer mirror and provided with an aperture that forms an emission region of a laser beam generated at the active layer region; and a current confinement portion disposed between the upper electrode and the lower multi-layer mirror and formed by insulating a peripheral portion of a current path, wherein at least one shape of an aperture provided on the top electrode and an aperture on the current confinement portion is a double-mirror symmetric geometry with long and short sides in arbitrary two axial directions orthogonal to each other in a plane. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够以相对简单的结构单向控制激光束的偏振并且具有低阈值电流和高功率特性的表面发射半导体激光器,并且提供折射率波导型 可以容易地制造并且能够振荡具有高输出的基本横向模式光的表面发射半导体激光器。 解决方案:表面发射半导体激光器包括:半导体衬底,其上具有下多层反射镜,有源层区域和上多层反射镜,其与下多层反射镜一起构成谐振器 依次分层; 上电极,其设置在所述上​​多层反射镜的上层上,并且设置有形成在所述有源层区域处产生的激光束的发射区域的孔; 以及电流限制部分,其设置在所述上​​电极和所述下多层反射镜之间并且通过使电流路径的周边部分绝缘而形成,其中设置在所述顶部电极上的孔的至少一个形状和所述电流限制部分上的孔 是双面对称几何形状,其长度和短边在平面中彼此正交的任意两个轴向方向上。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Fixing device and image forming apparatus
    • 固定装置和图像形成装置
    • JP2013041184A
    • 2013-02-28
    • JP2011179150
    • 2011-08-18
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • EKUSA NAOYUKIFURUKI MAKOTOSAKAMOTO AKIRA
    • G03G15/20
    • G03G15/201
    • PROBLEM TO BE SOLVED: To provide a technique for reducing risk of spreading ignition if a recording medium should ignite in a fixing device for fixing an image by light irradiation.SOLUTION: The fixing device includes: an irradiation member which is stored in a body to irradiate a surface of a conveyed recording medium with light; and a driving section for moving a planar member arranged on a rear face side of the conveyed recording medium. The fixing device irradiates the recording medium conveyed at a fixing position with light to fix a toner image on the recording medium and moves the planar member toward the body side by the driving section so that the recording medium at the fixing position is covered with the body of the fixing device during paper jamming and ignition of the recording medium.
    • 要解决的问题:提供一种用于降低点火的风险的技术,如果记录介质在通过光照射固定图像的定影装置中点燃。 解决方案:定影装置包括:照射构件,其被存储在体内以用光照射被传送的记录介质的表面; 以及用于移动布置在所传送的记录介质的背面侧上的平面构件的驱动部。 定影装置用光照射在定影位置传送的记录介质,以将调色剂图像固定在记录介质上,并通过驱动部分将平面构件朝向主体侧移动,使得固定位置处的记录介质被主体覆盖 在卡纸和记录介质的点燃期间固定装置。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Light-emitting element array, and print head
    • 发光元件阵列和打印头
    • JP2012019003A
    • 2012-01-26
    • JP2010154543
    • 2010-07-07
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • SAKAMOTO AKIRA
    • H01L33/08
    • PROBLEM TO BE SOLVED: To provide a light-emitting element array capable of increasing the density of light-emitting elements with a simple structure, and to provide a print head having the same.SOLUTION: A light-emitting element array is configured by forming a P-type first semiconductor layer, an N-type second semiconductor layer, a P-type third semiconductor layer, and an N-type fourth semiconductor layer sequentially on a semi-insulating substrate, forming an anode electrode on the first semiconductor layer, and forming a cathode electrode on the fourth semiconductor layer. The anode electrode is patterned and formed as two common anode wires 115 and 116. Each light-emitting element emits light in two different regions by the two anode wires 115 and 116.
    • 解决的问题:提供一种能够以简单的结构提高发光元件的密度的发光元件阵列,并提供具有该发光元件阵列的打印头。 解决方案:发光元件阵列通过在第一半导体层上形成P型第一半导体层,N型第二半导体层,P型第三半导体层和N型第四半导体层而构成 半绝缘基板,在第一半导体层上形成阳极电极,在第四半导体层上形成阴极电极。 阳极电极被图案化并形成为两个公共阳极线115和116.每个发光元件通过两个阳极线115和116在两个不同区域发光。版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Light-emitting thyristor, print head, and image forming apparatus
    • 发光二极管,打印头和图像形成装置
    • JP2011155219A
    • 2011-08-11
    • JP2010017221
    • 2010-01-28
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • FUKUNAGA HIDEKISAKAMOTO AKIRA
    • H01L33/10B41J2/44B41J2/45B41J2/455G03G15/04H04N1/036
    • PROBLEM TO BE SOLVED: To provide: a light-emitting device that generates no moire and has higher output than before; a print head; and an image forming apparatus. SOLUTION: On a p-type substrate 100, a p-type anode layer 102 as a first semiconductor layer, an n-type gate layer 104 as a second semiconductor layer, a non-doped semiconductor layer 105, a p-type gate layer 106 as a third semiconductor layer, and an n-type cathode layer 108 as a fourth semiconductor layer are formed in order, and a cathode electrode 110 and a gate electrode 112 are further formed. The first semiconductor layer, third semiconductor layer, and/or fourth semiconductor layer is formed into a multi-layered reflective layer (DBR) to increase light emission efficiency and to prevent moire from being generated owing to interference after lens passage. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供:不产生波纹并且具有比以前更高的输出的发光装置; 打印头; 和图像形成装置。 解决方案:在p型衬底100上,作为第一半导体层的p型阳极层102,作为第二半导体层的n型栅极层104,非掺杂半导体层105, 型栅极层106作为第三半导体层,并且依次形成作为第四半导体层的n型阴极层108,并且进一步形成阴极电极110和栅极电极112。 第一半导体层,第三半导体层和/或第四半导体层形成为多层反射层(DBR),以提高发光效率,并且防止由于透镜通过后的干涉而产生莫尔条纹。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Optical waveguide, light transmission apparatus and electronic equipment
    • 光波导,光传输设备和电子设备
    • JP2010204324A
    • 2010-09-16
    • JP2009048807
    • 2009-03-03
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • NIITSU TAKEHIROSAKAMOTO AKIRAYOSHIKAWA MASAHIRO
    • G02B6/42H01S5/022
    • G02B6/4214G02B6/43G02B2006/12195
    • PROBLEM TO BE SOLVED: To provide a bendable optical waveguide in which an optical coupling with an optical element is readily performed, an optical transmission apparatus and electronic equipment. SOLUTION: The optical waveguide 10 includes a first waveguide region 1 which has a core 11 and a cladding 21 provided around the core 11, and a light-reflecting surface 41, which reflects the light from the longitudinal direction of the core 11 to the direction intersecting with the longitudinal direction, or reflects the light from the intersecting direction to the longitudinal direction of the core; and a second waveguide region 2, which is the region connected to the first waveguide region 1 and has a core 12 and a cladding 22 provided around the core 12, wherein the thickness of the core 12 is smaller than that of the core 11 of the first waveguide region 1, and the sum of the thicknesses of the core and the cladding is smaller than the sum of the thicknesses of the core and the cladding of the first waveguide region. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种可轻松执行与光学元件的光耦合的可弯曲光波导,光传输装置和电子设备。 解决方案:光波导10包括具有芯11和围绕芯11设置的包层21的第一波导区域1和从芯11的纵向反射光的光反射表面41 沿与纵向相交的方向,或将光从交叉方向反射到芯的纵向方向; 以及第二波导区域2,其是连接到第一波导区域1并且具有围绕芯部12设置的芯部12和包层22的区域,其中芯部12的厚度小于芯部12的芯部11的厚度 第一波导区域1,并且芯部和包层的厚度之和小于第一波导区域的芯部和包层的厚度之和。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Holding member for optical device, the optical device and optical transmission apparatus
    • 光学装置的保持构件,光学装置和光传输装置
    • JP2010152235A
    • 2010-07-08
    • JP2008332457
    • 2008-12-26
    • Fuji Xerox Co Ltd富士ゼロックス株式会社
    • SAKAMOTO AKIRANIITSU TAKEHIROYOSHIKAWA MASAHIRO
    • G02B6/42G02B6/122H01S5/022
    • PROBLEM TO BE SOLVED: To provide a holding member for an optical device, by which alignment operation for making respective optical axes of an optical waveguide and an optical element coincide with each other can be easily performed, and to provide the optical device and an optical transmission apparatus. SOLUTION: The optical device includes a light-emitting element 5 having a light-emitting part 5a, an optical waveguide 4 having a core layer 4a to be photocoupled with the light-emitting element 5 through an optical path conversion part 40a, and a first holding member 6 for holding the optical waveguide 4 and mounting the light-emitting element 5. The first holding member 6 has a first positioning surface 6d for positioning the light-emitting element 5 in one direction out of two directions along the optical waveguide 4 and a second positioning surface 6e for positioning the optical waveguide 4 in the same direction as the positioning direction of the light-emitting element 5. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:为了提供一种用于光学装置的保持构件,通过该保持构件可以容易地执行用于使光波导和光学元件的各个光轴彼此重合的对准操作,并且提供光学装置 和光传输装置。 解决方案:光学装置包括具有发光部分5a的发光元件5,具有通过光路转换部分40a与发光元件5光耦合的芯层4a的光波导4, 以及用于保持光波导4并安装发光元件5的第一保持构件6.第一保持构件6具有第一定位表面6d,用于将发光元件5沿着沿着光学的两个方向沿一个方向定位 波导4和用于将光波导4定位在与发光元件5的定位方向相同的方向上的第二定位表面6e。版权所有(C)2010,JPO&INPIT