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21. 发明授权

US07474165B2 Oscillating device, optical deflector and optical instrument using the same 失效
标题翻译：摆动装置，光学偏转器和使用其的光学仪器
公开(公告)号：US07474165B2
公开(公告)日：2009-01-06
申请号：US11603058
申请日：2006-11-22
申请人： Takahisa Kato , Yukio Furukawa
发明人： Takahisa Kato , Yukio Furukawa
IPC分类号： G02B26/08
CPC分类号： G02B26/0866 , G02B26/085
摘要： Disclosed is an oscillating device that includes an oscillating system having a plurality of oscillation movable elements, a plurality of elastically supporting portions connected to the oscillation movable elements, and a supporting member for supporting a predetermined portion of the plurality of resiliently supporting portions so that predetermined oscillation movable element or elements are resiliently supported for oscillation about a predetermined oscillation axis, the device further including a driving circuit for driving the oscillating system and a temperature adjusting element for adjusting temperature of the resiliently supporting portions, wherein the oscillating system has a plurality of natural oscillation modes of different frequencies, and wherein the driving circuit functions to oscillate the predetermined movable element about the predetermined oscillation axis, in different natural oscillation modes simultaneously.
摘要翻译：公开了一种振荡装置，其包括具有多个振动可动元件的振荡系统，连接到振动可动元件的多个弹性支撑部分，以及用于支撑多个弹性支撑部分的预定部分的支撑部件，振动可移动元件被弹性地支撑以围绕预定的摆动轴线振荡，该装置还包括用于驱动振荡系统的驱动电路和用于调节弹性支撑部分的温度的温度调节元件，其中振荡系统具有多个不同频率的自然振荡模式，并且其中驱动电路用于以不同的自然振荡模式同时摆动围绕预定振荡轴的预定可移动元件。

22. 发明授权

US07436566B2 Oscillating device, optical deflector and method of controlling the same 失效
标题翻译：摆动装置，光学偏转器及其控制方法
公开(公告)号：US07436566B2
公开(公告)日：2008-10-14
申请号：US11603060
申请日：2006-11-22
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 , G02B26/127
摘要： An oscillating device such as an optical deflector, by which a resonance frequency of an oscillating system can be adjusted and controlled. In one preferred embodiment, the oscillating device includes an oscillating system, a stationary member for holding the oscillating system, and a driving system having a coil, for driving the oscillating system. The oscillating system includes a movable element, a supporting member and a resiliently supporting portion, wherein the movable element is resiliently supported relative to the supporting member by the resiliently supporting portion for oscillating motion about an oscillation axis. The supporting member is fixed to the stationary member. The amount of heat generation of the coil can be controlled by applying, to the coil, a heating electric current of a frequency different from the natural oscillation mode frequency of the oscillating system, whereby the temperature of the oscillating system can be controlled.
摘要翻译：诸如光偏转器的振荡装置，可以调节和控制振荡系统的共振频率。在一个优选实施例中，振荡装置包括振荡系统，用于保持振荡系统的固定构件和具有用于驱动振荡系统的线圈的驱动系统。振荡系统包括可移动元件，支撑构件和弹性支撑部分，其中可动元件通过弹性支撑部分相对于支撑构件弹性支撑，以围绕振荡轴线摆动。支撑部件固定在固定部件上。可以通过向线圈施加与振荡系统的固有振荡模式频率不同的频率的加热电流来控制线圈的发热量，从而可以控制振荡系统的温度。

23. 发明申请

US20070115072A1 Oscillating device, optical deflector and optical instrument using the same 失效
标题翻译：摆动装置，光学偏转器和使用其的光学仪器
公开(公告)号：US20070115072A1
公开(公告)日：2007-05-24
申请号：US11603058
申请日：2006-11-22
申请人： Takahisa Kato , Yukio Furukawa
发明人： Takahisa Kato , Yukio Furukawa
IPC分类号： H03L1/00
CPC分类号： G02B26/0866 , G02B26/085
摘要： Disclosed is an oscillating device that includes an oscillating system having a plurality of oscillation movable elements, a plurality of elastically supporting portions connected to the oscillation movable elements, and a supporting member for supporting a predetermined portion of the plurality of resiliently supporting portions so that predetermined oscillation movable element or elements are resiliently supported for oscillation about a predetermined oscillation axis,. the device further including a driving circuit for driving the oscillating system and a temperature adjusting element for adjusting temperature of the resiliently supporting portions, wherein the oscillating system has a plurality of natural oscillation modes of different frequencies, and wherein the driving circuit functions to oscillate the predetermined movable element about the predetermined oscillation axis, in different natural oscillation modes simultaneously.
摘要翻译：公开了一种振荡装置，其包括具有多个振动可动元件的振荡系统，连接到振动可动元件的多个弹性支撑部分，以及用于支撑多个弹性支撑部分的预定部分的支撑部件，振动可移动元件被弹性支撑以围绕预定的摆动轴线振荡。该装置还包括用于驱动振荡系统的驱动电路和用于调节弹性支撑部分的温度的温度调节元件，其中振荡系统具有多个不同频率的固有振荡模式，并且其中驱动电路用于使预定的可动元件围绕预定的摆动轴线，以不同的自然振荡模式同时进行。

24. 发明授权

US07548362B2 Optical deflecting device and image forming apparatus using the same 失效
标题翻译：光学偏转装置及使用其的成像装置
公开(公告)号：US07548362B2
公开(公告)日：2009-06-16
申请号：US11844738
申请日：2007-08-24
申请人： Suguru Miyagawa , Yukio Furukawa , Yasuhiro Shimada
发明人： Suguru Miyagawa , Yukio Furukawa , Yasuhiro Shimada
IPC分类号： G02B26/08
CPC分类号： G02B26/105
摘要： An optical deflecting device including a supporting member, an oscillating member, and a driving member for driving the oscillating member, wherein the oscillating member includes a first movable element and a second movable element torsionally oscillating about a common torsion axis, a first torsion spring for coupling the first movable element and the supporting member with each other, and a second torsion spring for coupling the first and second movable elements with each other and having a torsion axis the same as the first torsion spring, and wherein the first movable element is formed with a void configured to avoid blocking of incident light being incident on the second movable element from a direction intersecting with the torsion axis.
摘要翻译：一种光学偏转装置，包括支撑构件，摆动构件和用于驱动摆动构件的驱动构件，其中所述摆动构件包括第一可动构件和围绕公共扭转轴线扭转摆动的第二可动构件，第一扭转弹簧，将第一可移动元件和支撑构件彼此联接;以及第二扭转弹簧，用于将第一和第二可移动元件彼此联接并且具有与第一扭转弹簧相同的扭转轴线，并且其中形成第一可移动元件具有被配置为避免从与扭转轴相交的方向入射在第二可移动元件上的入射光的阻挡。

25. 发明申请

US20080055688A1 OPTICAL DEFLECTING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME 失效
标题翻译：光学偏转装置和使用该光学装置的图像形成装置
公开(公告)号：US20080055688A1
公开(公告)日：2008-03-06
申请号：US11844738
申请日：2007-08-24
申请人： Suguru Miyagawa , Yukio Furukawa , Yasuhiro Shimada
发明人： Suguru Miyagawa , Yukio Furukawa , Yasuhiro Shimada
IPC分类号： G02B26/08
CPC分类号： G02B26/105
摘要： An optical deflecting device including a supporting member, an oscillating member, and a driving member for driving the oscillating member, wherein the oscillating member includes a first movable element and a second movable element torsionally oscillating about a common torsion axis, a first torsion spring for coupling the first movable element and the supporting member with each other, and a second torsion spring for coupling the first and second movable elements with each other and having a torsion axis the same as the first torsion spring, and wherein the first movable element is formed with a void configured to avoid blocking of incident light being incident on the second movable element from a direction intersecting with the torsion axis.
摘要翻译：一种光学偏转装置，包括支撑构件，摆动构件和用于驱动摆动构件的驱动构件，其中所述摆动构件包括第一可动构件和围绕公共扭转轴线扭转摆动的第二可动构件，第一扭转弹簧，将第一可移动元件和支撑构件彼此联接;以及第二扭转弹簧，用于将第一和第二可移动元件彼此联接并且具有与第一扭转弹簧相同的扭转轴线，并且其中形成第一可移动元件具有被配置为避免从与扭转轴相交的方向入射在第二可移动元件上的入射光的阻挡。

26. 发明申请

US20130112001A1 ACOUSTIC WAVE DETECTOR AND ACOUSTIC WAVE MEASUREMENT APPARATUS 有权
标题翻译：声波检波器和声波测量装置
公开(公告)号：US20130112001A1
公开(公告)日：2013-05-09
申请号：US13810400
申请日：2011-07-08
申请人： Yukio Furukawa
发明人： Yukio Furukawa
IPC分类号： G01N29/00
CPC分类号： G01N29/00 , A61B5/0095 , A61B8/08 , A61B8/13 , G01N21/1702 , G01N2021/1787
摘要： An acoustic wave detector includes: a transducer; and a light reflecting member which is positioned between the transducer and a subject surface that is irradiated with the light, and which reflects scattered light on the subject surface. The light reflecting member includes a first reflecting surface and a second reflecting surface positioned closer to the transducer than the first reflecting surface, and a distance between the first reflecting surface and the second reflecting surface is an odd multiple of a half wavelength of a predetermined wavelength included in an acoustic wave generated from the light reflecting member by the scattered light.
摘要翻译：声波检测器包括：换能器; 以及光反射构件，其位于所述换能器和被所述光照射的被摄体表面之间，并且将散射光反射到所述被摄体表面上。光反射部件包括比第一反射面更靠近换能器的第一反射面和第二反射面，第一反射面与第二反射面的距离为预定波长的半波长的奇数倍包括在由光反射构件通过散射光产生的声波中。

27. 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。

28. 发明授权

US06667496B2 Optical semiconductor apparatus, and its fabrication method 失效
公开(公告)号：US06667496B2
公开(公告)日：2003-12-23
申请号：US10046319
申请日：2002-01-16
申请人： Yukio Furukawa
发明人： Yukio Furukawa
IPC分类号： H01L3300
CPC分类号： H01L31/125 , G02B6/12004 , H01L27/15 , H01L31/02327 , Y10S257/918
摘要： The optical semiconductor apparatus is provided with a surface light-emitting device and a surface light-receiving device, and includes an active layer, a first spacer layer, and a first semiconductor multi-layer mirror. The active layer, the first spacer layer, and the first semiconductor multi-layer mirror are layered in a layering direction. A first region of the surface light-emitting device and a second region of the surface light-receiving device are arranged in a direction approximately perpendicular to the layering direction, the first region is electrically separated from the second region substantially, and the first spacer layer in the first region and the first spacer layer in the second region are subjected to different oxidization including non-oxidization, respectively, such that resonators composed of the first semiconductor multi-layer mirror and the first spacer layer in the surface light-emitting device and the surface light-receiving device have different wavelength dependencies of reflectivity, respectively.

29. 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。

30. 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。

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