公开(公告)号：US20100085618A1

公开(公告)日：2010-04-08

申请号：US12598191

申请日：2008-06-16

申请人： Kazunari Fujii ,  Suguru Miyagawa

发明人： Kazunari Fujii ,  Suguru Miyagawa

IPC分类号： G02B26/08 ,  G03G15/22

CPC分类号： G02B26/105 ,  G02B26/0833

摘要： An oscillator device including an oscillation system with oscillators and torsion springs, a driving member for driving the oscillation system, and a drive control member for supplying a driving signal to the driving member, the oscillation system having at least a first oscillation mode and a second oscillation mode, the second oscillation mode having an angular frequency approximately n-fold the angular frequency of the first oscillation mode where n is an integer, the driving member driving the oscillation system so that it simultaneously oscillates in the first and second oscillation modes, wherein a natural angular frequency calculating member calculates the natural angular frequency of the second oscillation mode based on an output signal from a photodetector, being outputted at a timing whereat the reflection light passes over the photodetector.

摘要翻译： 一种包括具有振荡器和扭转弹簧的振荡系统的振荡器装置，用于驱动振荡系统的驱动部件和用于向驱动部件提供驱动信号的驱动控制部件，所述振荡系统至少具有第一振荡模式和第二振荡模式 振荡模式，所述第二振荡模式的角频率大约是第一振荡模式的角频率的n倍，其中n是整数，所述驱动构件驱动振荡系统，使得其在第一和第二振荡模式中同时振荡，其中 自然角频率计算部件基于来自光电检测器的输出信号，在反射光通过光电检测器的时刻输出第二振荡模式的自然角频率。

公开(公告)号：US07446921B2

公开(公告)日：2008-11-04

申请号：US11933830

申请日：2007-11-01

申请人： Souichirou Suzuki ,  Kenjiro Hori ,  Shimpei Matsuo ,  Ryuhei Shoji ,  Tatsuya Hotogi ,  Kazunari Fujii

发明人： Souichirou Suzuki ,  Kenjiro Hori ,  Shimpei Matsuo ,  Ryuhei Shoji ,  Tatsuya Hotogi ,  Kazunari Fujii

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B26/0841 ,  G02B26/127 ,  G06K15/1219 ,  H04N1/00002 ,  H04N1/00018 ,  H04N1/00042 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/00933 ,  H04N1/1135 ,  H04N2201/0082

摘要： An image forming apparatus detects a oscillating state of a oscillation system with a oscillation detector and controls oscillation of the oscillation system such that the oscillation system oscillates a reflective member in a balanced steady state by adjusting a drive force of a drive unit with one or more drive control parameter values on the basis of the detection result obtained by the oscillation detector. When the balanced steady state is detected, the drive control parameter values are stored and are used when an exposure unit is reactivated.

摘要翻译： 图像形成装置利用振动检测器检测振荡系统的振荡状态，并且控制振荡系统的振荡，使得振荡系统通过调节具有一个或多个驱动单元的驱动单元的驱动力来振荡处于平衡稳态的反射构件 基于由振荡检测器获得的检测结果的驱动控制参数值。 当检测到平衡稳态时，存储驱动控制参数值，并在重新激活曝光单元时使用。

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。

公开(公告)号：US07242506B2

公开(公告)日：2007-07-10

申请号：US11585882

申请日：2006-10-25

申请人： Atsushi Kandori ,  Masao Majima ,  Kazunari Fujii

发明人： Atsushi Kandori ,  Masao Majima ,  Kazunari Fujii

IPC分类号： G02B26/10

CPC分类号： G02B26/101

摘要： There is provided an optical deflector which has a control means for controlling deflection portion so as to deflect a deflection light beam at a desirable maximal deflection angle. According to the optical deflector, a scanning amplitude of the deflection portion can be suitably controlled by the control means.

摘要翻译： 提供了一种光学偏转器，其具有用于控制偏转部分以使偏转光束以期望的最大偏转角偏转的控制装置。 根据光学偏转器，偏转部分的扫描振幅可以由控制装置适当控制。

公开(公告)号：US20050128546A1

公开(公告)日：2005-06-16

申请号：US11000042

申请日：2004-12-01

申请人： Atsushi Kandori ,  Masao Majima ,  Kazunari Fujii

发明人： Atsushi Kandori ,  Masao Majima ,  Kazunari Fujii

IPC分类号： B41J2/44 ,  G02B26/10 ,  H04N1/113 ,  G02B26/08

CPC分类号： G02B26/101

摘要： There is provided an optical deflector which has a control means for controlling deflection portion so as to deflect a deflection light beam at a desirable maximal deflection angle. According to the optical deflector, a scanning amplitude of the deflection portion can be suitably controlled by the control means.

摘要翻译： 提供了一种光学偏转器，其具有用于控制偏转部分以使偏转光束以期望的最大偏转角偏转的控制装置。 根据光学偏转器，偏转部分的扫描振幅可以由控制装置适当控制。

公开(公告)号：US08270057B2

公开(公告)日：2012-09-18

申请号：US12598191

申请日：2008-06-16

申请人： Kazunari Fujii ,  Suguru Miyagawa

发明人： Kazunari Fujii ,  Suguru Miyagawa

IPC分类号： G02B26/08

CPC分类号： G02B26/105 ,  G02B26/0833

摘要： An oscillator device including an oscillation system with oscillators and torsion springs, a driving member for driving the oscillation system, and a drive control member for supplying a driving signal to the driving member, the oscillation system having at least a first oscillation mode and a second oscillation mode, the second oscillation mode having an angular frequency approximately n-fold the angular frequency of the first oscillation mode where n is an integer, the driving member driving the oscillation system so that it simultaneously oscillates in the first and second oscillation modes, wherein a natural angular frequency calculating member calculates the natural angular frequency of the second oscillation mode based on an output signal from a photodetector, being outputted at a timing whereat the reflection light passes over the photodetector.

摘要翻译： 一种包括具有振荡器和扭转弹簧的振荡系统的振荡器装置，用于驱动振荡系统的驱动部件和用于向驱动部件提供驱动信号的驱动控制部件，所述振荡系统至少具有第一振荡模式和第二振荡模式 振荡模式，所述第二振荡模式的角频率大约是第一振荡模式的角频率的n倍，其中n是整数，所述驱动构件驱动振荡系统，使得其在第一和第二振荡模式中同时振荡，其中 自然角频率计算部件基于来自光电检测器的输出信号，在反射光通过光电检测器的时刻输出第二振荡模式的自然角频率。

公开(公告)号：US08256302B2

公开(公告)日：2012-09-04

申请号：US12786212

申请日：2010-05-24

申请人： Kazunari Fujii ,  Yoshitaka Zaitsu

发明人： Kazunari Fujii ,  Yoshitaka Zaitsu

IPC分类号： G01L9/12

CPC分类号： G01L9/0072 ,  G01H11/06 ,  G01L23/125 ,  H04R19/04

摘要： A capacitive electro-mechanical transducer includes a cell, the cell including a first electrode and a second electrode that is disposed opposite the first electrode with a gap therebetween; and a pressure-adjusting unit for adjusting pressure in the gap.

摘要翻译： 电容式机电换能器包括电池，所述电池包括第一电极和与第一电极相对设置的第二电极，其间具有间隙; 以及用于调节间隙中的压力的​​压力调节单元。

公开(公告)号：US08159734B2

公开(公告)日：2012-04-17

申请号：US12667074

申请日：2008-09-01

申请人： Kazunari Fujii ,  Suguru Miyagawa

发明人： Kazunari Fujii ,  Suguru Miyagawa

IPC分类号： G02B26/08

CPC分类号： G02B26/101 ,  G02B26/0816 ,  G02B26/105

摘要： An oscillator device includes a supporting member, an oscillation system having plural oscillators and plural torsion springs, a driving device for oscillating the oscillation system, a drive control device for controlling the driving device, an oscillation detecting device for detecting a state of oscillation of an oscillator of the oscillation system, a resonance frequency calculating device for calculating a resonance frequency of the oscillation system based on an output of the oscillation detecting device, and a control parameter adjusting device for adjusting a control parameter of the drive control device, wherein the control parameter adjusting device adjusts a control parameter based on an output of the resonance frequency calculating device.

摘要翻译： 一种振荡器装置，包括支撑部件，具有多个振荡器的振荡系统和多个扭转弹簧，用于振荡振荡系统的驱动装置，用于控制驱动装置的驱动控制装置，用于检测驱动装置的振荡状态的振荡检测装置 振荡系统的振荡器，用于基于振荡检测装置的输出计算振荡系统的谐振频率的谐振频率计算装置，以及用于调节驱动控制装置的控制参数的控制参数调整装置，其中控制 参数调整装置根据共振频率计算装置的输出来调整控制参数。

公开(公告)号：US20100259809A1

公开(公告)日：2010-10-14

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 ,  H03K3/03

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：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。