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1. 发明授权

US07512160B2 Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus 失效
标题翻译：分布式布拉格反射半导体激光器的控制方法和图像投影装置
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。

2. 发明授权

US07313156B2 Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus 失效
标题翻译：分布式布拉格反射半导体激光器的控制方法和图像投影装置
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。

3. 发明授权

US07809032B2 Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus 有权
标题翻译：分布式布拉格反射半导体激光器的控制方法和图像投影装置
公开(公告)号：US07809032B2
公开(公告)日：2010-10-05
申请号：US12363708
申请日：2009-01-30
申请人： Kazunari Fujii , Hajime Sakata , Yukio Furukawa
发明人： Kazunari Fujii , Hajime Sakata , Yukio Furukawa
IPC分类号： H01S3/13 , 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。

4. 发明申请

US20090213886A1 CONTROL METHOD OF DISTRIBUTED BRAGG REFLECTION SEMICONDUCTOR LASER, AND IMAGE PROJECTING APPARATUS 有权
标题翻译：分布式布拉格反射半导体激光器和图像投影设备的控制方法
公开(公告)号：US20090213886A1
公开(公告)日：2009-08-27
申请号：US12363708
申请日：2009-01-30
申请人： Kazunari Fujii , Hajime Sakata , Yukio Furukawa
发明人： Kazunari Fujii , Hajime Sakata , Yukio Furukawa
IPC分类号： H01S3/10
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。

5. 发明申请

US20050254531A1 Light wavelength converting apparatus, control method of the same, and image projecting apparatus using the same 失效
标题翻译：光波长变换装置及其控制方法以及使用其的图像投影装置
公开(公告)号：US20050254531A1
公开(公告)日：2005-11-17
申请号：US11120950
申请日：2005-05-04
申请人： Yukio Furukawa , Hajime Sakata , Kazunari Fujii
发明人： Yukio Furukawa , Hajime Sakata , Kazunari Fujii
IPC分类号： G02B26/10 , G02F1/377 , H01S3/10 , H01S5/00 , H01S5/02 , H01S5/06 , H01S5/0625 , H01S5/0687 , H01S5/125
CPC分类号： H01S5/06256 , H01S5/005 , H01S5/0092 , H01S5/02248 , H01S5/0617 , H01S5/06804
摘要： A light wavelength converting apparatus includes a semiconductor laser having a gain region, a phase region, and a distributed Bragg reflection (DBR) region, a nonlinear optical device for receiving fundamental-wave light emitted from the semiconductor laser and outputting second harmonic wave light, a first optical detector for monitoring an output of the fundamental-wave light, a second optical detector for monitoring the second harmonic wave light, and a control portion for controlling at least a drive current for driving the semiconductor laser. The control portion includes a control parameter determiner, and a wavelength controller. The control parameter determiner changes a DBR current supplied to the DBR region and a phase current supplied to the phase region to obtain a changing point that corresponds to a discontinuous change in an electrical signal from the first optical detector, and determines a control parameter for controlling the DBR current and the phase current such that the relationship between the DBR current and the phase current is not located on the changing point. The wavelength controller controls the DBR current and the phase current pursuant to the control parameter such that an oscillation wavelength of the semiconductor laser can be continuously controlled.
摘要翻译：光波长转换装置包括具有增益区域，相位区域和分布布拉格反射区域的半导体激光器，用于接收从半导体激光器发射的基波光并输出二次谐波光的非线性光学装置，用于监视基波输出的第一光检测器，用于监测第二谐波光的第二光检测器，以及用于至少控制用于驱动半导体激光器的驱动电流的控制部分。控制部分包括控制参数确定器和波长控制器。控制参数确定器改变提供给DBR区域的DBR电流和提供给相位区域的相电流，以获得对应于来自第一光学检测器的电信号的不连续变化的变化点，并且确定用于控制的控制参数 DBR电流和相电流使得DBR电流和相电流之间的关系不位于变化点上。波长控制器根据控制参数控制DBR电流和相电流，使得能够连续地控制半导体激光器的振荡波长。

6. 发明申请

US20080002745A1 Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus 失效
标题翻译：分布式布拉格反射半导体激光器的控制方法和图像投影装置
公开(公告)号：US20080002745A1
公开(公告)日：2008-01-03
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： H01S5/06
CPC分类号： H04N9/3129 , H01S5/005 , H01S5/0092 , H01S5/06256 , H01S5/06804
摘要： A distributed Bragg reflection (DBR) semiconductor laser is controlled in an image projecting apparatus. The image projecting apparatus includes the DBR semiconductor laser which is provided with a phase region and a DBR region, a light wavelength converting device for converting fundamental-wave light emitted from the DBR semiconductor laser into second harmonic wave light, an optical deflector for scanning the second harmonic wave in a one-dimensional or two-dimensional manner, and a modulating portion for modulating the DBR semiconductor laser based on an image signal. In the control method, a coefficient calculating step and a wavelength adjusting step are performed within a non-drawing time during which a drawing signal, which corresponds to the image signal, is absent. In the coefficient calculating step, 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 is calculated. In the wavelength adjusting step, the DBR current injected into the DBR region and the phase current injected into the phase region are changed based on the relationship such that the second harmonic wave light is adjusted.
摘要翻译：在图像投影装置中控制分布式布拉格反射（DBR）半导体激光器。图像投影装置包括具有相位区域和DBR区域的DBR半导体激光器，用于将从DBR半导体激光器发射的基波光转换为二次谐波光的光波长转换装置，用于扫描一维或二维二次谐波，以及用于基于图像信号调制DBR半导体激光器的调制部分。在控制方法中，系数计算步骤和波长调整步骤在不存在对应于图像信号的绘制信号的非绘制时间内执行。在系数计算步骤中，计算要注入到DBR区域的DBR电流和要注入到用于连续移位基波的波长的相位区域的相电流之间的关系中的至少一个系数。在波长调整步骤中，根据调整二次谐波光的关系，改变注入DBR区域的DBR电流和注入相位区域的相电流。

7. 发明授权

US07411992B2 Light wavelength converting apparatus, control method of the same, and image projecting apparatus using the same 失效
标题翻译：光波长变换装置及其控制方法以及使用其的图像投影装置
公开(公告)号：US07411992B2
公开(公告)日：2008-08-12
申请号：US11120950
申请日：2005-05-04
申请人： Yukio Furukawa , Hajime Sakata , Kazunari Fujii
发明人： Yukio Furukawa , Hajime Sakata , Kazunari Fujii
IPC分类号： H01S3/08
CPC分类号： H01S5/06256 , H01S5/005 , H01S5/0092 , H01S5/02248 , H01S5/0617 , H01S5/06804
摘要： A light wavelength converting apparatus includes a semiconductor laser having gain, phase, and DBR regions, a nonlinear optical device for receiving fundamental-wave light emitted from the semiconductor laser and outputting second harmonic wave light, a first optical detector for monitoring output of the fundamental-wave light, a second optical detector for monitoring the second harmonic wave light, and a control portion for controlling a drive current for driving the semiconductor laser. The control portion includes a control parameter determiner and wavelength controller. The control parameter determiner changes a DBR current supplied to the DBR region and a phase current supplied to the phase region to obtain a changing point, and determines a control parameter for controlling the DBR and phase currents such that the relationship therebetween is not located on the changing point. The wavelength controller controls the DBR and phase currents pursuant to the control parameter.
摘要翻译：光波长转换装置包括具有增益，相位和DBR区域的半导体激光器，用于接收从半导体激光器发射的基波并输出二次谐波光的非线性光学装置，用于监视基波的输出的第一光学检测器波光，用于监测二次谐波光的第二光检测器，以及用于控制用于驱动半导体激光器的驱动电流的控制部分。控制部分包括控制参数确定器和波长控制器。控制参数确定器改变提供给DBR区域的DBR电流和提供给相位区域的相电流以获得改变点，并且确定用于控制DBR和相电流的控制参数，使得它们之间的关系不位于变化点波长控制器根据控制参数控制DBR和相电流。

8. 发明申请

US20050265419A1 Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus 失效
标题翻译：分布式布拉格反射半导体激光器的控制方法和图像投影装置
公开(公告)号：US20050265419A1
公开(公告)日：2005-12-01
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： G03B21/00 , H01S3/10 , H01S5/00 , H01S5/06 , H01S5/0625 , H01S5/068 , H01S5/0683 , H01S5/125 , H04N9/31
CPC分类号： H04N9/3129 , H01S5/005 , H01S5/0092 , H01S5/06256 , H01S5/06804
摘要： A distributed Bragg reflection (DBR) semiconductor laser is controlled in an image projecting apparatus. The image projecting apparatus includes the DBR semiconductor laser which is provided with a phase region and a DBR region, a light wavelength converting device for converting fundamental-wave light emitted from the DBR semiconductor laser into second harmonic wave light, an optical deflector for scanning the second harmonic wave in a one-dimensional or two-dimensional manner, and a modulating portion for modulating the DBR semiconductor laser based on an image signal. In the control method, a coefficient calculating step and a wavelength adjusting step are performed within a non-drawing time during which a drawing signal, which corresponds to the image signal, is absent. In the coefficient calculating step, 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 is calculated. In the wavelength adjusting step, the DBR current injected into the DBR region and the phase current injected into the phase region are changed based on the relationship such that the second harmonic wave light is adjusted.
摘要翻译：在图像投影装置中控制分布式布拉格反射（DBR）半导体激光器。图像投影装置包括具有相位区域和DBR区域的DBR半导体激光器，用于将从DBR半导体激光器发射的基波光转换为二次谐波光的光波长转换装置，用于扫描一维或二维二次谐波，以及用于基于图像信号调制DBR半导体激光器的调制部分。在控制方法中，系数计算步骤和波长调整步骤在不存在对应于图像信号的绘制信号的非绘制时间内执行。在系数计算步骤中，计算要注入到DBR区域的DBR电流和要注入到用于连续移位基波的波长的相位区域的相电流之间的关系中的至少一个系数。在波长调整步骤中，根据调整二次谐波光的关系，改变注入DBR区域的DBR电流和注入相位区域的相电流。

9. 发明授权

US07376161B2 Modulation light source, image display apparatus including the same, and method of driving modulation light source 失效
标题翻译：调制光源，包括其的图像显示装置以及驱动调制光源的方法
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。

10. 发明授权

US08400698B2 Oscillator device, optical deflecting device and method of controlling the same 有权
标题翻译：振荡器装置，光学偏转装置及其控制方法
公开(公告)号：US08400698B2
公开(公告)日：2013-03-19
申请号：US12160209
申请日：2007-02-13
申请人： Kazunari Fujii , Yukio Furukawa , Takahiro Akiyama , Ryuhei Shoji , Soichiro Suzuki , Shimpei Matsuo , Tatsuya Hotogi , Shinichiro Iimura
发明人： Kazunari Fujii , Yukio Furukawa , Takahiro Akiyama , Ryuhei Shoji , Soichiro Suzuki , Shimpei Matsuo , Tatsuya Hotogi , Shinichiro Iimura
IPC分类号： G02B26/08
CPC分类号： G02B26/0833
摘要： Disclosed is an oscillator device that includes an oscillating system having a first oscillator, a second oscillator, a first torsion spring for connecting the first and second oscillators each other, and a second torsion spring being connected to the second oscillator and having a common torsional axis with the first torsion spring; a supporting system for supporting the oscillating system; a driving system for driving the oscillating system so that at least one of the first and second oscillators produces oscillation as can be expressed by an equation that contains a sum of a plurality of time functions; a signal producing system for producing an output signal corresponding to displacement of at least one of the first and second oscillators; and a drive control system for controlling the driving system on the basis of the output signal of the signal producing system so that at least one of amplitude and phase of the time function takes a predetermined value.
摘要翻译：公开了一种振荡器装置，其包括具有第一振荡器，第二振荡器，用于将第一和第二振荡器彼此连接的第一扭转弹簧的振荡系统，以及连接到第二振荡器并具有公共扭转轴线的第二扭簧与第一扭转弹簧; 支撑摆动系统的支撑系统; 用于驱动振荡系统的驱动系统，使得第一和第二振荡器中的至少一个产生振荡，如可以由包含多个时间函数的和的等式表示的; 信号产生系统，用于产生对应于第一和第二振荡器中的至少一个的位移的输出信号; 以及驱动控制系统，用于基于信号产生系统的输出信号来控制驱动系统，使得时间函数的幅度和相位中的至少一个取预定值。

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