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公开(公告)号：JPS63233321A
公开(公告)日：1988-09-29
申请号：JP6440087
申请日：1987-03-20
Inventor： MIHASHI YOSHINOBU , ISHIHARA SATOSHI , TAGAWA MASAFUMI , YAMAZAKI HIROSHI
Abstract: PURPOSE:To measure the change quantity of physical quantity to be measured with high sensitivity, by changing the proper parameter of an optical fiber sensor measuring apparatus so as to make an interference luminous intensity constant. CONSTITUTION:A feedback control system consisting of a regulation part 21 and a wavelength control part 22 is added to an optical fiber sensor measuring apparatus 20 and the wavelength of the light emitted from a light source is used as a parameter performing feedback control. A coherent light source part 1 has a semiconductive laser 30 and a current control part 31 so as to always supply a constant current and the wavelength control part 22 is equipped with the temp. control mount 33 mounting the laser 30, an electronic cooler 34 cooling the mount 33 to measure temp., a temp. sensor 35 and a current driver 36 driving the electronic cooler 34 so as to set the detection temp. of the sensor 35 to the temp. ordered by the regulation part 21. The regulation part 21 inputs the interference luminous intensity output of a homodyne type light detection part 4 to change the wavelength of the laser 30 so as to make the value thereof constant and, therefore, the corresponding temp. command signal is outputted.
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公开(公告)号：JPS63228035A
公开(公告)日：1988-09-22
申请号：JP6014787
申请日：1987-03-17
Applicant: AGENCY IND SCIENCE TECHN , SUMITA OPTICAL GLASS , TOKYO AIRCRAFT INSTR CO
Inventor： MIHASHI YOSHINOBU , ISHIHARA SATOSHI , TAGAWA MASAFUMI , HANAWA MORITOMO
Abstract: PURPOSE:To easily measure the intensity, etc., of a ray flux, etc., emitted by a ray source by providing a photodetection part and a through hole, an output part and a detection part, etc. CONSTITUTION:A monitor device 20 is set so that the center line of its through hole 14 is nearly aligned with a line which connects a semiconductor laser 7 to a vapor-deposited material 8; and its photodetection part 12 is directed to the laser 7. Further, an output part 16 is provided with photoelectric converting elements at individual optical fiber output terminals and electric signals are led out. Then particles vaporized from the vapor-deposited material 8 reach the resonator surface of the laser 7 through the through hole 14 of the device 20. In the process, the film is grown by vapor deposition to vary in film thickness, so variation of the light output of the laser 7 based on the variation is detected 21 to track and monitor the process.
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公开(公告)号：JPS63228107A
公开(公告)日：1988-09-22
申请号：JP6014687
申请日：1987-03-17
Applicant: AGENCY IND SCIENCE TECHN , SUMITA OPTICAL GLASS
Inventor： MIHASHI YOSHINOBU , ISHIHARA SATOSHI , KIKUCHI KEISUKE , TAGAWA MASAFUMI
Abstract: PURPOSE:To permit provision of a smaller space for housing an optical pickup by forming an image to one point on the lateral side of an optical fiber member apart from the central axial line of the optical fiber. CONSTITUTION:The front end face of the optical fiber member 1 is inclined by an angle phi with the central axial line of the optical fiber to form a light reflection surface 4. The curvature X in the inclination direction of the light reflection surface 4 and the curvature Y in the direction perpendicular to the inclination direction are varied and these curvatures are so set that the propagated light forms the image at one point 0 on the lateral side of the optical fiber member 1. The propagated light is, therefore, constituted of the reflected light governed by the curvature X in the inclination direction at the light reflection surface 4 and the reflected light governed by the curvature Y in the direction perpendicular to the reflection direction. Since the disposition of the optical fiber 1 in parallel with, for example, the reflection recording surface of an optical disk is thereby permitted, the use of this device as a compact optical pickup is possible.
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公开(公告)号：JPS61247901A
公开(公告)日：1986-11-05
申请号：JP8980885
申请日：1985-04-25
Inventor： MIHASHI YOSHINOBU , ISHIHARA SATOSHI , TAGAWA MASAFUMI , YAMAZAKI HIROSHI
Abstract: PURPOSE:To decide whether the polarity is positive or negative even when the range of a phase difference is expanded greatly by obtaining an envelope signal on which an interference signal of interference light consisting of plural known wavelength components is superposed. CONSTITUTION:The intensity of output interference light when coherent light beams which have wavelength lambda and are mutually phi out of phase is expressed as 2(1+cosphii). When this interference light output is superposed as to i=1, 2 and spectrum component of lambda1 and lambda2 are detected at the same time, the sum IT is as shown by an equation 1 and the difference is as shown by an equation 2; when phi1 and phi2 vary uniformly, the IT and ID draw what is called 'beat waveform'. Then, envelope outputs IHC and IHS of the equations 1 and 2 are as shown by an expression 3. A two-wavelength system using the equation 1 is judged within a range 0
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公开(公告)号：JPH10293218A
公开(公告)日：1998-11-04
申请号：JP10337097
申请日：1997-04-21
Applicant: SUMITA OPTICAL GLASS
Inventor： TAGAWA MASAFUMI , YAMAZAKI MASAAKI , OTSUKA MASAAKI , TAKAKU HIDEAKI , SAWANOBORI SHIGETO , NAGAHAMA SHINOBU
IPC: G02B6/06
Abstract: PROBLEM TO BE SOLVED: To make a fluorescent image guide presenting the fluorescence of a visible light beam with ultraviolet rays to be practicable by using a fluorescent fiber having the structure of an optical fiber in which material absorbing the ultraviolet rays and emitting the fluorescence of the visible light beam is used as a core. SOLUTION: The fluorescent image guide 1 is in a state where both end faces are relatively twisted by 180 deg., so that an image is inverted upside down. An objective lens 2 is arranged on the incident end side of the image guide 1 and the reflected image of an observed object 6 irradiated with the ultraviolet rays or light including the ultraviolet rays by a light guide 7 is formed through an attachable/detachable filter 4 with ultraviolet ray transmissive and visible light cut. The image converted into the visible light by the image guide 1 is transmitted to the terminal of the image guide 1 and observed with the naked eye 5 by an ocular 3 arranged behind the image guide 1. Thus, the image of only the ultraviolet area of the reflected image of the object to be observed irradiated with the ultraviolet rays is converted into the visible light so as to be observed.
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Patent Agency Ranking
公开(公告)号：JP2012238105A
公开(公告)日：2012-12-06
申请号：JP2011105442
申请日：2011-05-10
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： WATABE HIROMI , MARUYAMA FUMIO , TAGAWA MASAFUMI
Abstract: PROBLEM TO BE SOLVED: To provide a fingerprint collecting device and a fingerprint collecting method which collect fingerprint images in a wide range with high accuracy.SOLUTION: A fingerprint collecting device 100 has a shooting sensor unit 101; a focusing optical system 112f; an optical system driving mechanism 113; a control portion 102; and an image processing portion 103. The shooting sensor unit 101 forms a subject image. The focusing optical system 112f focuses the subject image on a light-receiving surface of the shooting sensor unit. The optical system driving mechanism 113 displaces at least the focusing optical system 112f along an optical axis. The control portion 102 makes the optical system driving mechanism and the shooting sensor unit alternately and repeatedly execute the displacement and image pick-up of the focusing optical system. The image processing portion 103 separately calculates focus degrees of a plurality of small areas configuring the picked-up image. The image processing portion 103 extracts a part image in each small area from a single picked-up image. The image processing portion 103 combines the extracted part images to form the whole image.
Abstract translation: 要解决的问题：提供以高精度收集宽范围的指纹图像的指纹采集装置和指纹采集方法。 指纹采集装置100具有拍摄传感器单元101， 聚焦光学系统112f; 光学系统驱动机构113; 控制部分102; 和图像处理部分103.拍摄传感器单元101形成被摄体图像。 聚焦光学系统112f将被摄体图像聚焦在拍摄传感器单元的受光面上。 光学系统驱动机构113至少沿着光轴移动聚焦光学系统112f。 控制部102使光学系统驱动机构和拍摄传感器单元交替地重复地执行聚焦光学系统的位移和图像拾取。 图像处理部分103分别计算构成拍摄图像的多个小区域的焦点度。 图像处理部分103从单个拾取图像中提取每个小区域中的部分图像。 图像处理部分103组合提取的部分图像以形成整个图像。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2007275199A
公开(公告)日：2007-10-25
申请号：JP2006103553
申请日：2006-04-04
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： TAGAWA MASAFUMI , YAMAZAKI MASAAKI , ISHII OSAMU , NAGAHAMA SHINOBU
IPC: A61B1/06 , A61B1/00 , G02B6/00 , G02B6/42 , G02B23/26 , H01S3/06 , H01S3/08 , H01S3/094 , H01S3/098
CPC classification number: A61B1/0653
Abstract: PROBLEM TO BE SOLVED: To make an endoscope body compact and to increase a light quantity irradiated from the endoscope body. SOLUTION: An observation device comprises: a cylindrical endoscope body 2; an image guide 3 for transmitting image information imaged on one end side of the endoscope body 2 to the other end side; an optical fiber 4 for emitting light from one end of the endoscope body 2; a blue semiconductor laser element 5 for making excitation light be incident on the other end of the optical fiber 4; and dichroic mirrors 6 and 7 disposed on both end sides of the optical fiber 4 and constituting a laser resonator. The core 4a of the optical fiber 4 is formed of glass containing praseodymium ions which emit wavelength converted light when excited by the excitation light of the semiconductor laser element 5, and the light laser-resonated and wavelength-converted inside the core 4a is emitted from the endoscope body 2. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：使内窥镜体紧凑并增加从内窥镜体照射的光量。 解决方案：观察装置包括：圆柱形内窥镜主体2; 用于将在内窥镜主体2的一端侧成像的图像信息传送到另一端的图像引导件3; 用于从内窥镜主体2的一端发射光的光纤4; 用于使激发光入射到光纤4的另一端的蓝色半导体激光元件5; 以及配置在光纤4的两端侧并构成激光谐振器的分色镜6和7。 光纤4的芯4a由含有镨离子的玻璃形成，当由半导体激光元件5的激发光激发时，发出波长转换的光，并且在芯4a内的激光谐振和波长转换的光从 内窥镜主体2.版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007275198A
公开(公告)日：2007-10-25
申请号：JP2006103552
申请日：2006-04-04
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： TAGAWA MASAFUMI , YAMAZAKI MASAAKI , ISHII OSAMU , NAGAHAMA SHINOBU
CPC classification number: A61B1/0653
Abstract: PROBLEM TO BE SOLVED: To provide a light source unit which can secure a sufficient light quantity by relatively low electric power while attaining downsizing and reducing the number of parts.
SOLUTION: The light source unit 1 for emitting light to the outside comprises an optical fiber 4 for emitting the light from one end, a blue semiconductor laser element 5 for making excitation light be incident on the other end of the optical fiber 4, and dichroic mirrors 6 and 7 disposed on both end sides of the optical fiber 4 and constituting a laser resonator. The core of the optical fiber 4 is formed of glass containing praseodymium ions which emit wavelength converted light when excited by the excitation light of the semiconductor laser element 5, the wavelength of the excitation light is amplified while being converted in the optical fiber 4, and the white light of a rich light quantity is emitted from an emission port part 3.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种光源单元，其能够通过相对低的功率确保足够的光量，同时实现小型化和减少部件数量。 解决方案：用于向外部发光的光源单元1包括用于从一端发射光的光纤4，用于使激发光入射到光纤4另一端的蓝色半导体激光元件5 以及配置在光纤4的两端侧并构成激光谐振器的分色镜6,7。 光纤4的芯由含有镭离子玻璃的玻璃构成，当由半导体激光元件5的激发光激发时发射波长转换的光，激发光的波长在光纤4中被转换而被放大; 从发射口部分3发出富光量的白光。版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JPH0541931B2
公开(公告)日：1993-06-25
申请号：JP6014787
申请日：1987-03-17
Applicant: KOGYO GIJUTSUIN , SUMITA OPTICAL GLASS , TOKYO AIRCRAFT INSTR CO
Inventor： MIHASHI YOSHINOBU , ISHIHARA SATOSHI , TAGAWA MASAFUMI , HANAWA MORITOMO
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公开(公告)号：JP2011076965A
公开(公告)日：2011-04-14
申请号：JP2009229359
申请日：2009-10-01
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： TAGAWA MASAFUMI , ISHIBASHI TAKAYUKI
IPC: F21V8/00 , F21S2/00 , F21V19/00 , F21Y101/02
Abstract: PROBLEM TO BE SOLVED: To provide an LED light source device for light guide illumination device which can condense efficiently using an illumination LED with a large emission surface and has almost no irradiation unevenness.
SOLUTION: An illumination LED in which a large number of LED elements are arranged in plane and made in a package is arranged close to an incident end face of a light guide consisting of a bundle of optical fibers.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种能够有效地使用具有大的发射面的照明LED冷凝并且几乎没有辐射不均匀的导光照明装置的LED光源装置。 解决方案：其中大量LED元件布置在平面中并制成封装的照明LED布置在靠近由一束光纤组成的光导的入射端面附近。 版权所有（C）2011，JPO＆INPIT
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