公开(公告)号：US20070297463A1

公开(公告)日：2007-12-27

申请号：US11812011

申请日：2007-06-14

Applicant: Shinichi Shikii ,  Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

Inventor： Shinichi Shikii ,  Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

IPC: H01S3/30 ,  H01S3/10

CPC classification number: H01S3/109 ,  H01S3/0675 ,  H01S3/09415 ,  H01S3/2391 ,  H04N9/3129

Abstract: A wavelength conversion apparatus capable of stably providing high output harmonic laser light is provided. The wavelength conversion apparatus comprises an end pump fiber laser 3 containing a laser activating substance, and including a reflecting surface at one end thereof and a fiber grating in the vicinity of the reflecting surface; an excitation laser light source 1 for outputting excitation laser light; an excitation laser light introduction section 4 for introducing the excitation laser light from the excitation laser light source to the fiber laser; a wavelength conversion element 5 for converting a fundamental wave generated by the fiber laser to a harmonic; and a rear reflecting surface 6 located outside the fiber laser and forming a laser cavity together with the fiber grating.

Abstract translation: 提供能够稳定地提供高输出谐波激光的波长转换装置。 波长转换装置包括：端激光光纤激光器3，其包含激光活化物质，并且在其一端包括反射表面，在反射表面附近包括光纤光栅; 用于输出激发激光的激发激光光源1; 用于将来自激发激光光源的激发激光引入到光纤激光器的激发激光导入部4; 用于将由光纤激光器产生的基波转换为谐波的波长转换元件5; 以及位于光纤激光器外侧并与光纤光栅一起形成激光腔的后反射面6。

公开(公告)号：US20070263678A1

公开(公告)日：2007-11-15

申请号：US10591983

申请日：2005-02-22

Applicant: Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Isao Kidoguchi ,  Yasuo Kitaoka

Inventor： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Isao Kidoguchi ,  Yasuo Kitaoka

IPC: H01S3/10

CPC classification number: G02B1/18 ,  G02B27/0006 ,  G11B7/121 ,  G11B7/1275 ,  G11B7/1362 ,  G11B7/1395 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/025 ,  H01S3/0809 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/2391 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/02212 ,  H01S5/02296 ,  H01S5/32341 ,  H01S5/4031 ,  H01S5/4087

Abstract: An object of the present invention is to provide a coherent light source with limitations on the wavelength of emitted light being relaxed. The coherent light source of the present invention is a coherent light source for simultaneously emitting a first light (3) and a second light (4) having a wavelength shorter than that of the first light (3), including: a light source main body emitting at least the first light (3); a mirror (5) which transmits or reflects the first light (3); and a functional film (6) provided on at least a part of the mirror (5). The functional film (6) has a photocatalytic effect to be induced by the second light (4).

Abstract translation: 本发明的目的是提供一种相干光源，其中放射光的发射波长的限制。 本发明的相干光源是用于同时发射具有比第一光（3）的波长短的波长的第一光（3）和第二光（4）的相干光源，包括：光源主体 发射至少第一光（3）; 发射或反射第一光（3）的反射镜（5）; 以及设置在所述反射镜（5）的至少一部分上的功能膜（6）。 功能膜（6）具有由第二光（4）诱导的光催化效果。

公开(公告)号：US20070133638A1

公开(公告)日：2007-06-14

申请号：US10576107

申请日：2005-03-15

Applicant: Kiminori Mizuuchi ,  Kazuhisa Yamamoto

Inventor： Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC: H01S5/00 ,  H01S3/08

CPC classification number: G02B6/1228 ,  G02B6/4206 ,  H01S3/109 ,  H01S5/005 ,  H01S5/141 ,  H01S5/146 ,  H01S5/2036 ,  H01S5/4025

Abstract: It is easy to increase output with a wide stripe laser, but the lateral mode is a multimode, and the coupling efficiency is low with a single-mode fiber or a single-mode waveguide, creating problems in terms of application to devices of high coherence. In view of this, the light emitted from a wide stripe semiconductor laser is passed through a mode converter and a wavelength selecting filter, then fed back to the active layer of the semiconductor laser, which fixes the oscillation mode of the semiconductor laser to single mode.

Abstract translation: 使用宽条纹激光器可以容易地增加输出，但是横向模式是多模式的，并且单模光纤或单模波导的耦合效率较低，在应用于高相干性器件方面产生问题 。 鉴于此，从宽条形半导体激光器发射的光通过模式转换器和波长选择滤波器，然后反馈到半导体激光器的有源层，其将半导体激光器的振荡模式固定为单模 。

公开(公告)号：US20070035826A1

公开(公告)日：2007-02-15

申请号：US10573990

申请日：2004-09-30

Applicant: Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Kazuhisa Yamamoto

Inventor： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Kazuhisa Yamamoto

IPC: G03B21/56

CPC classification number: H04N9/3129 ,  G02B27/48 ,  H04N5/7416

Abstract: A display device of the present invention is provided with a light source (4) for emitting coherent light and displaying an image, and an image receiving part (1) comprising not less than two screens, onto which the coherent light is projected, wherein at least one of the screens constituting the image receiving part (1) is vibrated by an airflow applied to a front or rear surface of the image receiving part (1). Further, the image receiving part (1) has a function of a speaker. Thereby, when coherent light is used as a light source for display, it is possible to suppress spots of light intensity which are called speckle noise and occur due to interference of laser beams reflected at the image receiving part.

Abstract translation: 本发明的显示装置设置有用于发射相干光并显示图像的光源（4）和包括不少于两个屏幕的图像接收部分（1），相干光被投射到其上，其中， 构成图像接收部分（1）的屏幕中的至少一个由施加到图像接收部分（1）的前表面或后表面的气流振动。 此外，图像接收部（1）具有扬声器的功能。 因此，当使用相干光作为显示用光源时，可以抑制称为斑点噪声的光强度点，并且由于在图像接收部分反射的激光束的干涉而发生。

公开(公告)号：US20060285078A1

公开(公告)日：2006-12-21

申请号：US10568596

申请日：2005-02-24

Applicant: Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

Inventor： Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC: G03B21/26

CPC classification number: G03B21/28 ,  G02B26/101 ,  H04N9/3129

Abstract: A 2-D beam scan method using a galvanometer mirror and a polygon scanner has a problem that the polygon scanner is large and noises are increased. Also, a method of oscillating a compact mirror has a problem that a brightness distribution is produced depending on a scan angle. Hence, a beam is scanned while a relatively small mirror, such as an MEMS mirror, is oscillated at or in the vicinity of the resonance frequency. In this instance, the scan angle is corrected with the use of a correction optical system for uniform illumination to be achieved.

Abstract translation: 使用电流计反射镜和多边形扫描仪的2-D光束扫描方法存在多边形扫描器大且噪声增加的问题。 此外，振动小型反射镜的方法存在根据扫描角度产生亮度分布的问题。 因此，当相对较小的反射镜（例如MEMS反射镜）在谐振频率处或谐振频率附近振荡时，扫描光束。 在这种情况下，通过使用用于均匀照明的校正光学系统来校正扫描角度。

公开(公告)号：US07101723B2

公开(公告)日：2006-09-05

申请号：US10712086

申请日：2003-11-13

Applicant: Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

Inventor： Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

IPC: H01L21/00

CPC classification number: G02F1/37 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2203/60 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/23 ,  H01S5/0092 ,  H01S5/02 ,  H01S5/40 ,  H01S5/4087

Abstract: After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.

Abstract translation: 在LiTaO 3衬底1中形成畴反转层3之后，形成光波导。 通过对由此形成的光波长转换元件进行低温退火，形成稳定的质子交换层8，在高温退火时产生的折射率的升高降低，从而提供稳定的光波长转换元件。 因此，相位匹配波长变得恒定，并且消除了谐波输出的变化。 因此，对于利用非线性光学效应的光波长转换元件，提供了高度可靠的元件。

公开(公告)号：US07082146B2

公开(公告)日：2006-07-25

申请号：US11197624

申请日：2005-08-04

Applicant: Yasuo Kitaoka ,  Toshifumi Yokoyama ,  Kazuhisa Yamamoto

Inventor： Yasuo Kitaoka ,  Toshifumi Yokoyama ,  Kazuhisa Yamamoto

IPC: H01S3/10

CPC classification number: G01J1/4257 ,  H01S5/0014 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/06256

Abstract: A method for easily and quickly evaluating the wavelength variability properties of a wavelength-variable semiconductor laser is provided. An inspection device includes a power source for supplying current to a wavelength-variable DBR semiconductor laser having an active region, a phase control region, and a DBR region, a photo-detector for detecting an output intensity of laser beam emitted from the wavelength-variable DBR semiconductor laser, and a transmission type wavelength-selection element that can be inserted into a light path from the wavelength-variable DBR semiconductor laser to the photo-detector. In a state where the transmission type wavelength-selection element is inserted into the light path from the wavelength-variable DBR semiconductor laser to the photo-detector, at least one of a phase current that is supplied to the phase control region and a DBR current that is supplied to the DBR region is changed with respect to a predetermined active current that is supplied to the active region, and the output intensity of the laser beam after the laser beam has passed through the transmission type wavelength-selection element is detected by the photo-detector.

Abstract translation: 提供了一种容易且快速地评估波长可变半导体激光器的波长变异性的方法。 检查装置包括用于向具有有源区域的波长可变DBR半导体激光器提供电流的电源，相位控制区域和DBR区域，用于检测从波长范围发射的激光束的输出强度的光电检测器， 可变DBR半导体激光器和可以插入到从波长可变DBR半导体激光器到光检测器的光路中的透射型波长选择元件。 在将透射型波长选择元件从波长可变DBR半导体激光器插入到光检测器的光路中的状态下，提供给相位控制区域的相电流和DBR电流中的至少一个 提供给DBR区域的电压相对于提供给有源区域的预定有功电流而改变，并且激光束已经通过透射型波长选择元件之后的激光束的输出强度由 光电探测器。

公开(公告)号：US07065035B1

公开(公告)日：2006-06-20

申请号：US09694625

申请日：2000-10-23

Applicant: Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Rie Kojima ,  Noboru Yamada

Inventor： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Rie Kojima ,  Noboru Yamada

IPC: G11B7/24

CPC classification number: G11B7/243 ,  G02B6/126 ,  G02B6/29362 ,  G02B2006/12164 ,  G02F1/3532 ,  G02F1/3544 ,  G02F1/3775 ,  G02F2001/3548 ,  G02F2201/18 ,  G02F2203/58 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/124 ,  G11B7/1275 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/259 ,  G11B7/26 ,  G11B2007/0013 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10≦|λ1−λ2|≦120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.

公开(公告)号：US07035192B2

公开(公告)日：2006-04-25

申请号：US10873931

申请日：2004-06-22

Applicant: Yasuo Kitaoka ,  Ken'ichi Kasazumi ,  Katsuhiko Kumagawa ,  Kazuhisa Yamamoto ,  Hidenori Wada

Inventor： Yasuo Kitaoka ,  Ken'ichi Kasazumi ,  Katsuhiko Kumagawa ,  Kazuhisa Yamamoto ,  Hidenori Wada

IPC: G11B7/00

CPC classification number: G11B7/13925 ,  G11B7/1275 ,  G11B7/1362 ,  G11B7/1367 ,  G11B7/1369 ,  G11B2007/0006

Abstract: Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.

Abstract translation: 分别从具有光电检测器的SHG蓝色激光单元和红色半导体激光单元分别发射的激光束通过准直透镜转换为平行光，然后通过电介质多层膜镜耦合，以便在相同的光学 轴。 介电多层膜反射镜被配置为透射波长为500nm或更短的光，并且对于P波和S波都反射波长为500nm或更长的光。 由电介质多层膜镜透射和反射的光通过偏振全息图和相位可变波片，并通过物镜聚焦在光盘上。 以这种方式，即使使用偏振光学检测系统，简单的配置也可以实现与许多类型的光盘的兼容性和稳定的信号检测。

公开(公告)号：US20060073781A1

公开(公告)日：2006-04-06

申请号：US11168429

申请日：2005-06-29

Applicant: Chihiro Mochizuki ,  Kazuhisa Yamamoto

Inventor： Chihiro Mochizuki ,  Kazuhisa Yamamoto

IPC: B60H1/34

CPC classification number: B60H1/3421 ,  F24F13/15

Abstract: A louver apparatus includes a case member, a connecting member, and a louver pivotally secured to the case member, including a shaft portion including a shaft body being in the form of a substantially cylindrical shape, and a head portion being in the form of a substantially regular polygon, and being located at a tip end portion of the shaft body. At least a part of the head portion protruding radially from the shaft body. The connecting member includes an axial hole being in the form of a substantially regular polygon. The head portion is arranged to pass through the axial hole only at predetermined positions, and to be held not to pass through the axial hole at positions other than the predetermined positions.

Abstract translation: 百叶窗装置包括壳体构件，连接构件和枢转地固定到壳体构件的百叶窗，其包括轴部，该轴部包括基本上为圆筒形状的轴体，以及头部，其形状为 基本上是规则的多边形，并且位于轴体的末端部分。 头部的至少一部分从轴体径向突出。 连接构件包括呈基本上规则的多边形形式的轴向孔。 头部被布置成仅在预定位置处通过轴向孔，并且保持不在预定位置以外的位置处通过轴向孔。