公开(公告)号：US20090235502A1

公开(公告)日：2009-09-24

申请号：US12481472

申请日：2009-06-09

申请人： Takahisa Kato ,  Yukio Furukawa ,  Takahiro Akiyama

发明人： Takahisa Kato ,  Yukio Furukawa ,  Takahiro Akiyama

IPC分类号： H01L41/22

CPC分类号： G02B26/085 ,  B81B3/0067 ,  B81B2201/042 ,  B81B2203/0181 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/4908 ,  Y10T156/1052

摘要： An oscillator device and a method of producing the same, that enables adjustment of an inertia moment or a gravity center position of an oscillating member through wide range and at high speed, wherein the oscillating member oscillates about an oscillation axis 17 and it includes a movable element 11 and a mass adjusting member 19, a cavity 30 being defined between the movable member 11 and a portion of the mass adjusting member 19, such that, in response to irradiation of the mass adjusting member 19 with a laser beam, a material of the mass adjusting member contiguous to the cavity 30 is partly removed, the material being removed thereby including a portion of the mass adjusting member not irradiated with the laser beam.

摘要翻译： 一种振荡器装置及其制造方法，其能够通过宽范围和高速度调节摆动构件的惯性矩或重心位置，其中振荡构件围绕振荡轴线17摆动，并且其包括可移动 元件11和质量调节构件19，空腔30限定在可动构件11和质量调节构件19的一部分之间，使得响应于用激光束照射质量调节构件19，材料 部分地去除与空腔30相邻的质量调节构件，从而被去除的材料包括未被激光束照射的质量调节构件的一部分。

公开(公告)号：US07512160B2

公开(公告)日：2009-03-31

申请号：US11896142

申请日：2007-08-30

申请人： Kazunari Fujii ,  Hajime Sakata ,  Yukio Furukawa

发明人： Kazunari Fujii ,  Hajime Sakata ,  Yukio Furukawa

IPC分类号： H01S3/10 ,  H01S5/00

CPC分类号： H04N9/3129 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/06256 ,  H01S5/06804

摘要： A DBR semiconductor laser is controlled in an image projecting apparatus, which includes the DBR laser having a phase and DBR region, a light wavelength converting device for converting fundamental-wave light emitted from the DBR laser into second harmonic wave light, an optical deflector for scanning the second harmonic wave in a one or two-dimensional manner, and a modulating portion for modulating the DBR laser. Coefficient calculating and wavelength adjusting steps are performed within a non-drawing time. The coefficient calculating step calculates at least one coefficient in a relationship between a DBR current to be injected into the DBR region and a phase current to be injected into the phase region for continuously shifting the wavelength of the fundamental-wave light. The wavelength adjusting step changes DBR current injected into the DBR region and phase current injected into the phase region based on the relationship.

摘要翻译： DBR半导体激光器被控制在包括具有相位和DBR区域的DBR激光器的图像投影装置中，用于将从DBR激光器发射的基波光转换成二次谐波光的光波长转换装置，用于 以一维或二维方式扫描二次谐波，以及用于调制DBR激光的调制部分。 系数计算和波长调整步骤在非绘制时间内执行。 系数计算步骤计算要注入到DBR区域的DBR电流和要注入到相位区域中的相电流之间的关系中的至少一个系数，以连续移位基波光的波长。 基于该关系，波长调整步骤改变注入DBR区域的DBR电流和注入相位区域的相电流。

公开(公告)号：US07423795B2

公开(公告)日：2008-09-09

申请号：US11753062

申请日：2007-05-24

申请人： Takahisa Kato ,  Kazutoshi Torashima ,  Yukio Furukawa ,  Yasuhiro Shimada

发明人： Takahisa Kato ,  Kazutoshi Torashima ,  Yukio Furukawa ,  Yasuhiro Shimada

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B26/085

摘要： An optical deflector includes an oscillating system and a driving system for driving the oscillating system, the oscillating system including a first oscillator, a first torsion spring, a second oscillator, a second torsion spring and a supporting member, the first oscillator including a first movable element having a light deflecting element configured to deflect light, the second oscillator including a second movable element having a mass adjusting member configured to adjust a mass, wherein the first movable element is resiliently supported by the second movable element through the first torsion spring, for torsional oscillation about an oscillation axis, wherein the second movable element is resiliently supported by the supporting member through the second torsional spring, for torsional oscillation about the oscillation axis, and wherein the oscillating system has at least two natural oscillation modes having different frequencies, about the oscillation axis.

摘要翻译： 光偏转器包括振荡系统和用于驱动振荡系统的驱动系统，所述振荡系统包括第一振荡器，第一扭转弹簧，第二振荡器，第二扭转弹簧和支撑部件，所述第一振荡器包括第一可动 具有配置成使光偏转的光偏转元件的第二振荡器包括具有构造成调节质量的质量调节构件的第二可移动元件，其中第一可移动元件由第二可移动元件通过第一扭转弹簧弹性地支撑， 围绕振荡轴的扭转振荡，其中第二可移动元件由支撑构件通过第二扭转弹簧弹性地支撑，用于围绕振荡轴线的扭转振荡，并且其中振荡系统具有至少两个具有不同频率的固有振荡模式，约为 振荡轴。

公开(公告)号：US07376161B2

公开(公告)日：2008-05-20

申请号：US10579828

申请日：2005-03-18

申请人： Kazunari Fujii ,  Yukio Furukawa

发明人： Kazunari Fujii ,  Yukio Furukawa

IPC分类号： H01S3/10 ,  H01S3/08

CPC分类号： H01S5/06256 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/0617 ,  H01S5/06253

摘要： A modulation light source capable of maintaining thermal stability of a gain part is provided. A modulation light source includes a DBR laser having a DBR part, a phase part and a gain part, a light wavelength conversion device that receives a fundamental wave from the DBR laser and from which an SHG light is emitted, and a control means for controlling the DBR laser. A substantially constant current is supplied to the gain part for a modulation time period of a PWM signal. At least one of the DBR part and the phase part is controlled for modulation using a current based on the PWM signal.

摘要翻译： 提供了能够保持增益部的热稳定性的调制光源。 调制光源包括具有DBR部分，相位部分和增益部分的DBR激光器，从DBR激光器接收基波并从其发射SHG光的光波长转换装置，以及控制装置，用于控制 DBR激光。 在PWM信号的调制时间周期内向增益部分提供基本恒定的电流。 使用基于PWM信号的电流来控制DBR部分和相位部分中的至少一个用于调制。

公开(公告)号：US07313156B2

公开(公告)日：2007-12-25

申请号：US11120951

申请日：2005-05-04

申请人： Kazunari Fujii ,  Hajime Sakata ,  Yukio Furukawa

发明人： Kazunari Fujii ,  Hajime Sakata ,  Yukio Furukawa

IPC分类号： H01S3/13

CPC分类号： H04N9/3129 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/06256 ,  H01S5/06804

摘要： A DBR semiconductor laser is controlled in an image projecting apparatus, which includes the DBR laser having a phase and DBR region, a light wavelength converting device for converting fundamental-wave light emitted from the DBR laser into second harmonic wave light, an optical deflector for scanning the second harmonic wave in a one or two-dimensional manner, and a modulating portion for modulating the DBR laser. Coefficient calculating and wavelength adjusting steps are performed within a non-drawing time. The coefficient calculating step calculates at least one coefficient in a relationship between a DBR current to be injected into the DBR region and a phase current to be injected into the phase region for continuously shifting the wavelength of the fundamental-wave light. The wavelength adjusting step changes DBR current injected into the DBR region and phase current injected into the phase region based on the relationship.

摘要翻译： DBR半导体激光器被控制在包括具有相位和DBR区域的DBR激光器的图像投影装置中，用于将从DBR激光器发射的基波光转换成二次谐波光的光波长转换装置，用于 以一维或二维方式扫描二次谐波，以及用于调制DBR激光的调制部分。 系数计算和波长调整步骤在非绘制时间内执行。 系数计算步骤计算要注入到DBR区域的DBR电流和要注入到相位区域中的相电流之间的关系中的至少一个系数，以连续移位基波光的波长。 基于该关系，波长调整步骤改变注入DBR区域的DBR电流和注入相位区域的相电流。

公开(公告)号：US20070279720A1

公开(公告)日：2007-12-06

申请号：US11753057

申请日：2007-05-24

申请人： Kazutoshi Torashima ,  Takahisa Kato ,  Yukio Furukawa ,  Yasuhiro Shimada

发明人： Kazutoshi Torashima ,  Takahisa Kato ,  Yukio Furukawa ,  Yasuhiro Shimada

IPC分类号： G02B26/08

CPC分类号： G02B26/105

摘要： An optical deflector includes a supporting member, a first movable element having a light deflecting element, at least one second movable element, at least one first torsion spring configured to support the first and second movable elements, for torsional oscillation about an oscillation axis, at least one second torsion spring configured to support the second movable element and the supporting member, for torsional oscillation about the oscillation axis, and a driving system configured to apply a driving force to at least one of the first and second movable elements, wherein a moment of inertia of the second movable element with respect to the oscillation axis is larger than a moment of inertia of the first movable element with respect to the oscillation axis, and wherein a length of the second movable element in a direction perpendicular to the oscillation axis is equal to or less than a length of the first movable element in a direction perpendicular to the oscillation axis.

摘要翻译： 光学偏转器包括支撑件，具有光偏转元件的第一可移动元件，至少一个第二可移动元件，至少一个构造成支撑第一和第二可移动元件的第一扭转弹簧，用于围绕振荡轴线的扭转振动， 至少一个第二扭转弹簧，其构造成支撑所述第二可移动元件和所述支撑构件，以围绕所述振荡轴线进行扭转振动;以及驱动系统，构造成将驱动力施加到所述第一和第二可移动元件中的至少一个， 所述第二可动元件相对于所述振动轴的惯性大于所述第一可动元件相对于所述振动轴的惯性矩，并且所述第二可动元件在垂直于所述振荡轴的方向上的长度为 等于或小于第一可移动元件在垂直于振荡轴线的方向上的长度。

公开(公告)号：US20060198006A1

公开(公告)日：2006-09-07

申请号：US11349922

申请日：2006-02-09

申请人： Takahisa Kato ,  Yukio Furukawa

发明人： Takahisa Kato ,  Yukio Furukawa

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B26/085 ,  G02B26/101

摘要： A light deflector for scanning with light from a light source comprises a support body, an oscillation system and a drive means for driving the oscillation system. The oscillation system includes a first movable element and a second movable element having a light deflecting body. The first movable element is resiliently supported by the support body by means of a single first torsion spring. The second movable element is resiliently supported by the first movable element by means of a plurality of second torsion springs located vis-à-vis with the second movable element interposed between them.

摘要翻译： 用于从光源的光扫描的光偏转器包括支撑体，振荡系统和用于驱动振荡系统的驱动装置。 振荡系统包括具有光偏转体的第一可移动元件和第二可移动元件。 第一可移动元件通过单个第一扭转弹簧由支撑体弹性地支撑。 第二可移动元件由第一可移动元件弹性地支撑，该多个第二扭转弹簧相对于位于它们之间的第二可动元件相对设置。

公开(公告)号：US20060044297A1

公开(公告)日：2006-03-02

申请号：US11201428

申请日：2005-08-11

申请人： Yukio Furukawa ,  Hajime Sakata

发明人： Yukio Furukawa ,  Hajime Sakata

IPC分类号： G09G5/00

CPC分类号： H04N9/3129

摘要： An image display apparatus includes a light source having a plurality of light emitting devices, and a projection optical system capable of making lights from the light source scan in a main scanning direction and in a subscanning direction to display on a screen an image having a predetermined number of pixels. The scanning lines in the main scanning direction are formed by the lights emitted from each of the light emitting devices and controlled to be superposed one on another on the screen.

摘要翻译： 一种图像显示装置包括具有多个发光装置的光源和能够使来自光源的光沿主扫描方向和副扫描方向扫描的投影光学系统，以在屏幕上显示具有预定的 像素数 主扫描方向上的扫描线由从每个发光装置发出的光形成，并被控制在屏幕上彼此重叠。

公开(公告)号：US20050226285A1

公开(公告)日：2005-10-13

申请号：US11156464

申请日：2005-06-21

申请人： Hajime Sakata ,  Yukio Furukawa

发明人： Hajime Sakata ,  Yukio Furukawa

IPC分类号： B41J2/44 ,  G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S5/062 ,  H01S5/125 ,  H01S5/323 ,  H01S5/343 ,  H01S5/50 ,  H01S3/10

CPC分类号： B82Y20/00 ,  G02F1/353 ,  G02F1/3556 ,  H01S5/06213 ,  H01S5/0622 ,  H01S5/125 ,  H01S5/32366 ,  H01S5/34306

摘要： There is provided a harmonic generator generates high power laser light and can be modulated at high modulation rate. The semiconductor laser emits a first output light when a bias current is supplied, and a second output light when a modulating current is superposed to the bias current. On of the first output lights has a wavelength inside of a wavelength tolerance of phase-matching of the wavelength-converting element. The other has a wavelength outside of the wavelength tolerance of phase-matching.

摘要翻译： 提供谐波发生器产生高功率激光，并且可以以高调制速率进行调制。 当提供偏置电流时，半导体激光器发射第一输出光，当调制电流与偏置电流叠加时，第二输出光。 第一输出光的开启波长转换元件的相位匹配的波长公差内部具有波长。 另一个波长在相位匹配的波长容差以外。

公开(公告)号：US06804279B2

公开(公告)日：2004-10-12

申请号：US10035427

申请日：2002-01-04

申请人： Yukio Furukawa

发明人： Yukio Furukawa

IPC分类号： H01S500

CPC分类号： H01S5/18397 ,  H01S5/0427 ,  H01S5/18311 ,  H01S5/18333 ,  H01S5/18341 ,  H01S5/18358 ,  H01S5/18383 ,  H01S5/423

摘要： In a surface emitting laser apparatus having at least a light-emitting device, there is provided a cavity structure of the light-emitting device including a first n-type semiconductor multi-layer mirror, a first active layer, a p-type spacer layer, a second active layer, and a second n-type semiconductor multi-layer mirror formed on a substrate. Current confinement structures are formed in the vicinity of the first and second active layers, respectively. A p-side electrode is electrically connected to the p-type spacer layer. A first n-side electrode is electrically connected to the first n-type semiconductor multi-layer mirror, and a second n-side electrode is electrically connected to the second n-type semiconductor multi-layer mirror.

摘要翻译： 在具有至少一个发光装置的表面发射激光装置中，提供了一种发光装置的空腔结构，其包括第一n型半导体多层反射镜，第一有源层，p型隔离层 ，第二有源层和形成在基板上的第二n型半导体多层反射镜。 电流限制结构分别形成在第一和第二有源层附近。 p侧电极与p型间隔层电连接。 第一n侧电极与第一n型半导体多层反射镜电连接，第二n侧电极与第二n型半导体多层反射镜电连接。