公开(公告)号：US5412685A

公开(公告)日：1995-05-02

申请号：US244915

申请日：1994-06-15

申请人： Akira Egawa ,  Michinori Maeda ,  Yoshitaka Kubo

发明人： Akira Egawa ,  Michinori Maeda ,  Yoshitaka Kubo

IPC分类号： H01S3/07 ,  H01S3/081

CPC分类号： H01S3/081 ,  H01S3/076

摘要： A laser oscillator which is capable of providing a circularly polarized laser beam by an external optical system having a brief configuration. A folding section of a folded-type resonator (10) comprises reflecting mirrors (4a), (4b) and (4c). The reflecting mirror (4a) is inclined at an angle of 45.degree. to an optical axis of an excitation section (3a), and the reflecting mirror (4c) is inclined at an angle of 45.degree. to an optical axis of an excitation section (3b). The reflecting mirror (4b) is horizontally arranged so that the center of the mirror is positioned at the vertex of an isosceles right triangle with respect to the reflecting mirrors (4a) and (4c). Thus, an S polarized-light component of a laser beam from the excitation section (3b) is reflected by the reflecting mirror (4c) toward the reflecting mirror (4b). Further, a P polarized-light component of the laser beam is reflected by the reflecting mirror (4b) to the reflecting mirror (4a), and the S polarized-light component is reflected by the reflecting mirror (4a), thus a laser beam having a linearly polarized-light component as shown by an arrow (11) is outputted from the folded-type resonator (10). Accordingly, only a 1/4 wave-length mirror is used on the outside of the folded-type resonator (10); nevertheless a circularly polarized laser beam can be provided simply.

摘要翻译： PCT No.PCT / JP93 / 01494 Sec。 371日期：1994年6月15日 102（e）1994年6月15日PCT 1993年10月14日PCT PCT。 公开号WO94 / 10727 日期：1994年5月11日。一种激光振荡器，其能够通过具有简短配置的外部光学系统提供圆偏振激光束。 折叠式谐振器（10）的折叠部分包括反射镜（4a），（4b）和（4c）。 反射镜（4a）相对于激励部（3a）的光轴以45°的角度倾斜，反射镜（4c）以与激励部的光轴成45度的角度倾斜 3b）。 反射镜（4b）水平布置成使得反射镜的中心相对于反射镜（4a）和（4c）位于等腰直角三角形的顶点。 因此，来自激励部分（3b）的激光束的S偏振光分量被反射镜（4c）反射到反射镜（4b）。 此外，激光的P偏振光分量被反射镜（4b）反射到反射镜（4a），并且S偏振光分量被反射镜（4a）反射，因此激光束 从折叠式谐振器（10）输出如箭头（11）所示的线偏振光分量。 因此，在折叠型谐振器（10）的外侧仅使用1/4波长镜。 然而，可以简单地提供圆偏振激光束。

公开(公告)号：US5307113A

公开(公告)日：1994-04-26

申请号：US939412

申请日：1992-09-03

申请人： Akira Egawa

发明人： Akira Egawa

IPC分类号： G03B17/00 ,  H04N5/232 ,  G03B17/40

CPC分类号： H04N5/23264 ,  G03B17/00 ,  H04N5/23248 ,  H04N5/23254 ,  G03B2207/005 ,  G03B2217/005

摘要： The present patent application discloses an imaging apparatus having actuating means for starting picking-up of an image, image blur detecting means for detecting the blurring state of the image resulting from the operation of the actuating means, and setting means responsive to the output of the image blur detecting means for setting a time which lasts until an image recording starts.

摘要翻译： 本专利申请公开了一种具有用于开始拍摄图像的致动装置的成像装置，用于检测由致动装置的操作产生的图像的模糊状态的图像模糊检测装置，以及响应于 图像模糊检测装置，用于设置持续到图像记录开始的时间。

公开(公告)号：US5060007A

公开(公告)日：1991-10-22

申请号：US644408

申请日：1991-01-22

申请人： Akira Egawa

发明人： Akira Egawa

IPC分类号： G03B17/20 ,  H04N5/232

CPC分类号： H04N5/23254 ,  G03B17/20 ,  H04N5/23248 ,  G03B2217/005

摘要： The present patent application discloses an image blue display device in which the image information in a first time is compared with the image information in a second time to detect a changed place, and this place is displayed as the image blur information.

摘要翻译： 本专利申请公开了一种图像蓝色显示装置，其中第一次将图像信息与图像信息进行第二次比较以检测改变的位置，并且该位置被显示为图像模糊信息。

公开(公告)号：US4937834A

公开(公告)日：1990-06-26

申请号：US329790

申请日：1989-03-13

申请人： Akira Egawa

发明人： Akira Egawa

IPC分类号： H01S3/0975

CPC分类号： H01S3/0975

摘要： A high-frequency discharge pumping laser device is provided, applying a high-frequency voltage to a laser tube to produce laser oscillation. The high-frequency discharge pumping laser device comprises a high-frequency power supply for generating the high-frequency voltage, and a matching circuit for gaining impedance matching between the high-frequency power supply and the laser tube. The matching circuit has a reactance having an intermediate point connected to ground of a high-frequency circuit. This arrangement reduces variations or fluctuations of the laser output due to a mutual current and a mutual impedance between discharge tube segments.

公开(公告)号：US4745614A

公开(公告)日：1988-05-17

申请号：US898224

申请日：1986-08-20

申请人： Akira Egawa ,  Hakaru Mizoguchi ,  Kiyonori Matsuno ,  Tatsuya Ariga ,  Ryoichi Nodomi

发明人： Akira Egawa ,  Hakaru Mizoguchi ,  Kiyonori Matsuno ,  Tatsuya Ariga ,  Ryoichi Nodomi

IPC分类号： H01S3/0971 ,  H01S3/13

CPC分类号： H01S3/09713

摘要： A silent discharge type laser device which comprises a detector for detecting the amount of electric charges passed between electrodes and controlling means for controlling an output current or voltage of a power supply so that a charge amount detected by the detector is equal to a target level, thereby keeping the passage charge amount always constant.

摘要翻译： 一种无声放电型激光装置，其特征在于，包括检测电极间通过的电荷量的检测器和用于控制电源的输出电流或电压的控制装置，使得由检测器检测的电荷量等于目标电平， 从而保持通过电荷量始终恒定。

公开(公告)号：US4710010A

公开(公告)日：1987-12-01

申请号：US13198

申请日：1987-02-09

申请人： Akihiro Namai ,  Akira Egawa ,  Takanori Kodaira

发明人： Akihiro Namai ,  Akira Egawa ,  Takanori Kodaira

IPC分类号： G02B7/08 ,  G03B3/10

CPC分类号： G02B7/08 ,  Y10T74/2133

摘要： A device for driving the axial movement of a photographic lens barrel of a camera including a distance adjusting ring having a number of cam portions of similar shape arranged successively on the front end of the ring to cooperate with a follower on the barrel, a ratchet mechanism for turning the ring from the initial or first to the terminal or second position of each cam portion, a rotor arranged in a magnetic field to drive the ratchet mechanism, and a circuit for controlling the current supply to the rotor. After an exposure has been completed, as the ring is further turned in the same direction, when the terminal end of the cam portion moves away from the follower, the lens barrel is set in the initial position of the next cam portion. The rotor control circuit is provided with a switch arranged to open after the lens barrel has moved some distance from the initial position, whereby the circuit is rendered responsive to the closure of the switch for stopping the current supply to the rotor.

摘要翻译： 一种用于驱动照相机的照相镜筒的轴向运动的装置，包括距离调节环，该距离调节环具有多个类似形状的凸轮部分，其连续布置在环的前端上以与筒上的随动件配合，棘轮机构 用于将环从每个凸轮部分的初始位置或第一位置转换到终端或第二位置，设置在磁场中以驱动棘轮机构的转子以及用于控制向转子供电的电路。 在曝光完成之后，随着环进一步向相反方向转动，当凸轮部分的末端远离跟随器时，透镜镜筒被设定在下一个凸轮部分的初始位置。 转子控制电路设置有开关，该开关布置成在镜筒从初始位置移动一定距离之后打开，由此响应于开关的闭合而使电路响应，以停止向转子供电。

公开(公告)号：US4708454A

公开(公告)日：1987-11-24

申请号：US936786

申请日：1986-12-02

申请人： Takanori Kodaira ,  Akira Egawa

发明人： Takanori Kodaira ,  Akira Egawa

IPC分类号： G03B7/091 ,  G03B7/16 ,  G03B7/20 ,  G03B15/05 ,  G03B17/12 ,  G03B7/00 ,  G03B3/00 ,  G03B15/03

CPC分类号： G03B7/16 ,  G03B7/093 ,  G03B2217/005

摘要： A shutter control apparatus for use with a variable focal length camera which has a lens shutter, a detecting means for detecting a fully opened state of the lens shutter, a discriminating means for discriminating the focal length of a photographing optical system, and a controlling means for closing the lens shutter in response to the detection of the fully opened state of the lens shutter made by the detecting means when the discriminating means determined that the photographing optical system has a longer focal length during flash photography.

摘要翻译： 一种与具有透镜快门的可变焦距照相机一起使用的快门控制装置，用于检测透镜快门的完全打开状态的检测装置，用于鉴别拍摄光学系统的焦距的判别装置，以及控制装置 当识别装置在闪光摄影期间确定拍摄光学系统具有较长的焦距时，响应于由检测装置检测到的透镜快门的完全打开状态来关闭镜头快门。

公开(公告)号：US07782377B2

公开(公告)日：2010-08-24

申请号：US10786864

申请日：2004-02-24

申请人： Hiroshi Miyanari ,  Akira Egawa

发明人： Hiroshi Miyanari ,  Akira Egawa

IPC分类号： H04N5/217

CPC分类号： H04N5/361

摘要： It is an object to provide an image sensing apparatus which can shorten the time required for the creation of correction data by reducing the amount of data used for the creation of correction data. In order to achieve the above object, an image sensing apparatus according to this invention includes a plurality of pixels, a first calculating unit which creates correction data by performing computation using signals which are acquired by image sensing in an unexposed state and smaller in number than said plurality of pixels, and a second calculating unit which corrects image data of the plurality of pixels, acquired by image sensing in an exposed state, by using the correction data.

摘要翻译： 本发明的目的是提供一种图像感测装置，其可以通过减少用于创建校正数据的数据量来缩短创建校正数据所需的时间。 为了实现上述目的，根据本发明的图像感测装置包括多个像素，第一计算单元，其通过使用在未曝光状态下通过图像感测获取的信号进行计算而产生校正数据，数量小于 所述多个像素，以及第二计算单元，其通过使用所述校正数据来校正在曝光状态下通过图像感测获取的所述多个像素的图像数据。

公开(公告)号：US07729042B2

公开(公告)日：2010-06-01

申请号：US12350336

申请日：2009-01-08

申请人： Akira Egawa

发明人： Akira Egawa

IPC分类号： G02F1/35 ,  H01S3/10

CPC分类号： G02F1/37 ,  G02F2001/3546 ,  H01S3/025 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1673 ,  H04N9/3161

摘要： A light source device includes: a light source unit configured to emit light; a wavelength conversion element configured to convert the wavelength of light emitted from the light source unit; a light source housing configured to accommodate at least the light source unit and the wavelength conversion element; and a temperature control unit configured to control temperature of the wavelength conversion element. The temperature control unit is disposed outside the light source housing.

摘要翻译： 光源装置包括：配置成发光的光源单元; 波长转换元件，被配置为转换从所述光源单元发射的光的波长; 光源壳体，被配置为容纳至少所述光源单元和所述波长转换元件; 以及温度控制单元，被配置为控制波长转换元件的温度。 温度控制单元设置在光源壳体的外部。

公开(公告)号：US07566844B2

公开(公告)日：2009-07-28

申请号：US11247258

申请日：2005-10-12

申请人： Akira Egawa ,  Kazuhiro Suzuki ,  Hiroaki Tokito

发明人： Akira Egawa ,  Kazuhiro Suzuki ,  Hiroaki Tokito

IPC分类号： B23K26/00 ,  B23K26/08

CPC分类号： B23K26/04 ,  B23K26/38 ,  B23K26/382

摘要： A laser-machining device (1) for machining a workpiece (W) by radiating it with the laser beam output from a nozzle (42) of a laser oscillator (31) is disclosed. A gap amount sensor (43) detects the gap amount between the workpiece and the nozzle. An approach unit (12, 41) causes the nozzle to approach the workpiece to a position suitable for the laser machining. The approach unit performs a first approach operation (12a) for making the nozzle approach the workpiece using the gap amount detected by the gap amount sensor until the gap amount comes to assume a predetermined value, and a second approach operation (12b), after the first approach operation, for causing the nozzle to approach the workpiece until the complete approach without using the gap amount detected by the gap amount sensor. As a result, the required time is shorter and a stable piercing process can be executed.

摘要翻译： 公开了一种用于通过从激光振荡器（31）的喷嘴（42）输出的激光束照射工件（W）来加工工件（W）的激光加工装置（1）。 间隙量传感器（43）检测工件与喷嘴之间的间隙量。 接近单元（12,41）使得喷嘴接近工件到适于激光加工的位置。 接近单元执行用于使喷嘴接近工件的第一接近操作（12a），使用由间隙量传感器检测的间隙量直到间隙量达到预定值，以及第二接近操作（12b） 第一接近操作，用于使喷嘴接近工件直到完全进入，而不使用由间隙量传感器检测到的间隙量。 结果，所需时间更短，并且可以执行稳定的穿孔过程。