公开(公告)号：US07920313B2

公开(公告)日：2011-04-05

申请号：US12809053

申请日：2008-03-12

申请人： Kazunari Fujii ,  Hideta Nishizawa ,  Kazufumi Onuma

发明人： Kazunari Fujii ,  Hideta Nishizawa ,  Kazufumi Onuma

IPC分类号： G02B26/08

CPC分类号： G02B26/0833 ,  G02B26/105

摘要： An oscillator device includes an oscillation system having first and second oscillators and first and second resilient supporting members, wherein the oscillation system has at least two frequencies of natural oscillation mode around a torsion axis which include a first resonance frequency f1 and a second resonance frequency f2, wherein there is a relationship that f2 is approximately two-fold of f1, and wherein a drive control member supplies, to a driving member, a driving signal which is comprised of a driving signal based on synthesizing a first driving signal having a first driving frequency and a second driving signal having a second driving frequency, and which is such driving signal that, among the first and second driving frequencies, a lower-frequency side driving frequency Df1 and a higher-frequency side driving frequency Df2 satisfy a relationship Df1×2=Df2 and that Df2 satisfies a relationship f2−|Δf/2|

摘要翻译： 振荡器装置包括具有第一和第二振荡器和第一和第二弹性支撑构件的振荡系统，其中振荡系统具有围绕扭转轴的至少两个自然振荡模式的频率，该扭转轴包括第一共振频率f1和第二共振频率f2 其特征在于，存在f2大约是f1的两倍的关系，其中驱动控制部件基于合成具有第一驱动的第一驱动信号向驱动部件供给包括驱动信号的驱动信号 频率和具有第二驱动频率的第二驱动信号，并且是这样的驱动信号，即在第一和第二驱动频率中，低频侧驱动频率Df1和较高频侧驱动频率Df2满足关系Df1× 2 = Df2，并且Df2满足关系f2- |＆Dgr; f / 2 |

公开(公告)号：US20110064470A1

公开(公告)日：2011-03-17

申请号：US12992569

申请日：2009-05-11

申请人： Takahiro Akiyama ,  Kazunari Fujii ,  Yukio Furukawa ,  Shinichiro Iimura

发明人： Takahiro Akiyama ,  Kazunari Fujii ,  Yukio Furukawa ,  Shinichiro Iimura

IPC分类号： G03G15/28 ,  G02B26/10

CPC分类号： G02B26/127

摘要： A light deflector device includes a light deflector having an oscillation system, a driving unit for driving the oscillation system and a drive controlling unit for supplying a drive signal. The oscillation system simultaneously generates a first oscillating motion of a first frequency and a second oscillating motion of a second frequency. The drive controlling unit supplies a drive signal formed by synthetically combining a first signal having the first frequency and a second signal having the second frequency to the driving unit and, at the same time, another drive signal for changing at least the amplitude of the first oscillating motion, the amplitude of second oscillating motion or the relative phase difference of the first oscillating motion and the second oscillating motion to the driving unit in order to correct an offset of scanning light deflected by the light deflector.

摘要翻译： 光偏转器装置包括具有振荡系统的光偏转器，用于驱动振荡系统的驱动单元和用于提供驱动信号的驱动控制单元。 振荡系统同时产生第一频率的第一振荡运动和第二频率的第二振荡运动。 驱动控制单元将通过将具有第一频率的第一信号和具有第二频率的第二信号合成组合的驱动信号提供给驱动单元，并且同时提供用于至少改变第一频率的振幅的另一个驱动信号 振荡运动，第二振荡运动的幅度或第一振荡运动和第二振荡运动的相对相位差到驱动单元，以便校正由偏光板偏转的扫描光的偏移。

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。

公开(公告)号：US20100092213A1

公开(公告)日：2010-04-15

申请号：US12525133

申请日：2008-03-24

申请人： Kazunari Fujii ,  Takahiro Akiyama

发明人： Kazunari Fujii ,  Takahiro Akiyama

IPC分类号： G02B26/10 ,  G02B26/08

CPC分类号： G02B26/105 ,  G02B26/0816

摘要： An oscillator device includes an oscillation system, a driving member and a control device, wherein the oscillation system includes a first oscillation movable element, a second oscillation movable element and a support member, the first oscillation movable element being supported by a first elastic supporting element, for torsional oscillation relative to the second oscillation movable element and around an oscillation axis, the second oscillation movable element being supported by a second elastic supporting element, for torsional oscillation relative to the support member and around the oscillation axis, wherein the oscillation system has a first natural oscillation mode of a resonance frequency f1 and a second natural oscillation mode of a resonance frequency of f2 which is approximately N-fold of f1 where N is a natural number, and wherein the control device determines set driving frequencies Df1 and Df2 in accordance with a predetermined equation while satisfying a relation Df2=N×Df1 and drives the oscillation system at the set driving frequencies through the driving member.

摘要翻译： 振荡装置包括振荡系统，驱动部件和控制装置，其中振荡系统包括第一振动可动元件，第二振荡可动元件和支撑部件，第一振动可动元件由第一弹性支撑元件 相对于第二振动可动元件和绕振动轴线的扭转振动，第二振动可动元件由第二弹性支撑元件支撑，用于相对于支撑构件和摆动轴线的扭转振动，其中振荡系统具有 共振频率f1的第一自然振荡模式和f2的近似N倍的共振频率f2的第二自然振荡模式，其中N是自然数，并且其中控制装置确定设定的驱动频率Df1和Df2 同时满足关系Df2 = N ×Df1，并通过驱动构件以设定的驱动频率驱动振荡系统。

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。

公开(公告)号：US09314820B2

公开(公告)日：2016-04-19

申请号：US13393918

申请日：2010-10-28

申请人： Takahiro Akiyama ,  Makoto Takagi ,  Kazunari Fujii ,  Hidemasa Mizutani

发明人： Takahiro Akiyama ,  Makoto Takagi ,  Kazunari Fujii ,  Hidemasa Mizutani

IPC分类号： B06B1/00 ,  B06B1/02 ,  G01N29/24

CPC分类号： G01N29/2418 ,  B06B1/0292 ,  G01N29/2406 ,  G01N2291/101

摘要： Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.

摘要翻译： 本发明提供一种超声波检测装置，其特征在于，包括：电容式机电换能器，其包括具有与空间对置配置的第一电极和第二电极的电池单元; 用于在第一电极和第二电极之间形成电位差的电压源; 以及用于将由于第二电极的振动而由第一电极和第二电极之间的静电电容的变化引起的电流转换成电压的电路，其中电容式机电换能器提供输出电流 具有相对于频率具有第一截止频率的高通特性，所述电路提供具有相对于所述频率具有第二截止频率的低通特性的输出，并且所述第二截止频率小于所述第一截止频率 。

公开(公告)号：US08562111B2

公开(公告)日：2013-10-22

申请号：US13106131

申请日：2011-05-12

申请人： Kazunari Fujii

发明人： Kazunari Fujii

IPC分类号： B41J2/05

CPC分类号： B41J2/04541 ,  B41J2/14072

摘要： A semiconductor device including segments, a power supply pad and conductive patterns is provided. Each segment includes driving units for discharging a liquid. Each driving unit includes a driving circuit and an element driven by the driving circuit to apply discharging energy to the liquid. The conductive pattern includes a first conductive portion connected to the power supply pad, a second rectangular conductive portion, a third conductive portion connected to the driving units, and a connection portion which connects the second and third conductive portions. These conductive portions are elongated in a first direction. In a second direction, a length of the second conductive portion is greater than a length of the first conductive portion. The second conductive portion is connected to the first conductive portion at a first corner and to the connection portion at a second corner diagonal to the first corner.

摘要翻译： 提供了包括段，电源焊盘和导电图案的半导体器件。 每个段包括用于排放液体的驱动单元。 每个驱动单元包括驱动电路和由驱动电路驱动的元件以向液体施加放电能量。 导电图案包括连接到电源焊盘的第一导电部分，第二矩形导电部分，连接到驱动单元的第三导电部分和连接第二和第三导电部分的连接部分。 这些导电部分在第一方向上是细长的。 在第二方向上，第二导电部分的长度大于第一导电部分的长度。 第二导电部分在第一角处连接到第一导电部分，并且在与第一拐角对角的第二角处连接到连接部分。

公开(公告)号：US08412075B2

公开(公告)日：2013-04-02

申请号：US12992569

申请日：2009-05-11

申请人： Takahiro Akiyama ,  Kazunari Fujii ,  Yukio Furukawa ,  Shinichiro Iimura

发明人： Takahiro Akiyama ,  Kazunari Fujii ,  Yukio Furukawa ,  Shinichiro Iimura

IPC分类号： G03G15/04

CPC分类号： G02B26/127

摘要： A light deflector device includes a light deflector having an oscillation system, a driving unit for driving the oscillation system and a drive controlling unit for supplying a drive signal. The oscillation system simultaneously generates a first oscillating motion of a first frequency and a second oscillating motion of a second frequency. The drive controlling unit supplies a drive signal formed by synthetically combining a first signal having the first frequency and a second signal having the second frequency to the driving unit and, at the same time, another drive signal for changing at least the amplitude of the first oscillating motion, the amplitude of second oscillating motion or the relative phase difference of the first oscillating motion and the second oscillating motion to the driving unit in order to correct an offset of scanning light deflected by the light deflector.

摘要翻译： 光偏转器装置包括具有振荡系统的光偏转器，用于驱动振荡系统的驱动单元和用于提供驱动信号的驱动控制单元。 振荡系统同时产生第一频率的第一振荡运动和第二频率的第二振荡运动。 驱动控制单元将通过将具有第一频率的第一信号和具有第二频率的第二信号合成组合的驱动信号提供给驱动单元，并且同时提供用于至少改变第一频率的振幅的另一个驱动信号 振荡运动，第二振荡运动的幅度或第一振荡运动和第二振荡运动的相对相位差到驱动单元，以便校正由偏光板偏转的扫描光的偏移。

公开(公告)号：US07933057B2

公开(公告)日：2011-04-26

申请号：US12525133

申请日：2008-03-24

申请人： Kazunari Fujii ,  Takahiro Akiyama

发明人： Kazunari Fujii ,  Takahiro Akiyama

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B26/0816

摘要： An oscillation system includes first and second oscillation movable elements supported by respective elastic supporting elements. The oscillation system has a first natural oscillation mode of a resonance frequency f1 and a second natural oscillation mode of a resonance frequency of f2 which is approximately N-fold of f1 where N is a natural number. A control device determines set driving frequencies Df1 and Df2 in accordance with a predetermined equation while satisfying a relation Df2=N×Df1 and drives the oscillation system at the set driving frequencies through a driving member.

摘要翻译： 振荡系统包括由相应的弹性支撑元件支撑的第一和第二振动可移动元件。 振荡系统具有谐振频率f1的第一自然振荡模式和f2的谐振频率的第二自然振荡模式，其大约是f1的N倍，其中N是自然数。 控制装置根据预定方程式确定设定驱动频率Df1和Df2，同时满足关系Df2 = N×Df1，并通过驱动构件驱动设定的驱动频率的振荡系统。

公开(公告)号：US07843618B2

公开(公告)日：2010-11-30

申请号：US10576609

申请日：2005-06-14

申请人： Kazunari Fujii ,  Yasuhiro Shimada

发明人： Kazunari Fujii ,  Yasuhiro Shimada

IPC分类号： G02B26/08 ,  G02B26/00 ,  G02F2/00

CPC分类号： G02B26/127 ,  H04N1/00978 ,  H04N1/00986 ,  H04N2201/0082

摘要： Even in an image-forming apparatus including an optical deflection apparatus using a light source such as a high-power laser light source, a variation in temperature of an optical deflector due to modulation of deflected light based on drawing data is compensated to maintain a preferable oscillation state of the optical deflection apparatus. The optical deflection apparatus includes an optical deflector in which an oscillator is supported by an elastic support member to be oscillatable about a support substrate and at least one light source, and the optical deflection apparatus is controlled such that total power of light emitted from the light source to the optical deflector within each of a plurality of divided time regions corresponding to specific times of equal lengths becomes a predetermined power. A changed temperature of the optical deflector which is caused due to a variation in power of light emitted from the light source to the optical deflector may be corrected by a temperature control element based on the power of the light emitted from the light source to the optical deflector within the specific time to control the optical deflection apparatus.

摘要翻译： 即使在包括使用诸如大功率激光光源的光源的光学偏转装置的图像形成装置中，补偿基于绘图数据的由偏转光的调制引起的偏光板的温度变化，以保持优选 光学偏转装置的振荡状态。 光学偏转装置包括光学偏转器，其中振动器由弹性支撑构件支撑以围绕支撑衬底和至少一个光源可摆动，并且光学偏转装置被控制成使得从光发射的光的总功率 在对应于相同长度的特定时间的多个分割时间区域内的每个中的光偏转器的源极成为预定的功率。 可以通过温度控制元件基于从光源发射到光学器件的光的功率来校正由于从光源发射到光学偏转器的光的功率变化而引起的光学偏转器的温度变化 偏转器在特定时间内控制光学偏转装置。