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公开(公告)号：JPH10104444A
公开(公告)日：1998-04-24
申请号：JP19259097
申请日：1997-07-17
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO
Abstract: PROBLEM TO BE SOLVED: To make it possible to transmit and output the uneven pattern of the surface of a body, which is brought into contact with an input end surface, with high contrast by providing a core and a light absorber, and slanting the input end surface to the axis of the core. SOLUTION: The end surface 25a of each core 32 does not cross the axis at right angles, but slants at a specific angle to the axis. Light beams 72a and 73a which are transmitted through a finger 80 and projected from a recessed part 82 to travel in a gap 83 as to the light 87 from a light source 86 are transmitted through an end surface 35a to enter the core 32. Refracted light beams 72b and 73b of those light beams 72a and 73a travel in the core 32 in directions off the axial direction of the core 32 and are attenuated or removed by the light absorber 34. In the area where a projection part 81 of a fingerprint and the end surface 35a of the core are close to each other, the refractive index of the finger 80 is larger than that of air, so the relation between the incidence angle and refraction angle of the light reaching the end surface 35a by passing through the projection part 81 of the finger 80 as to the light from 87 from the finger 86 changes from the relation in a noncontact area.
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公开(公告)号：JPH09288223A
公开(公告)日：1997-11-04
申请号：JP10015896
申请日：1996-04-22
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO
Abstract: PROBLEM TO BE SOLVED: To improve the emitting characteristic of light by making a 2nd plate have larger numerical aperture than a 1st plate and splicing the incident surface thereof with the emitting surface of the 1st plate. SOLUTION: The 1st plate 2 is obtained by bundling and integrating plural optical fibers 21 turned in the same direction, and has the incident surface 22 and the emitting surface 23 formed obliquely to the optical axis direction thereof. Meanwhile, the 2nd plate 3 similarly has the incident surface 32 and the emitting surface 33 formed obliquely to the optical axis direction of plural optical fibers 31. The 2nd plate 3 has the larger numerical aperture than the 1st plate 2. Namely, the optical fiber having the larger numerical aperture than that of the optical fiber 21 of the 1st plate 2 is used as the optical fiber 31 of the 2nd plate 3. Thus, the light is easily made incident on the 2nd plate 3 from the 1st plate 2, and the emitting angle of the light emitted from the emitting surface 33 of the 2nd plate 3 becomes wide.
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公开(公告)号：JPH07211877A
公开(公告)日：1995-08-11
申请号：JP543894
申请日：1994-01-21
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO , HINO TOSHIHIKO , SUZUKI MAKOTO
Abstract: PURPOSE:To provide a compact radiation image detector without damages and noises caused by radiation. CONSTITUTION:A radiation detector 1 has an optical fiber plate 3 having the light emitting edge and the light incident edge which are made to cross the waveguiding direction of the light respectively and intersected at a right angle to each other, a scintillator 4, which is provided at the light incident edge and emits the light in correspondence with the incident radiation, and a solid-state image pickup device 2, which is provided so that the light incident surface faces the light emitting edge.
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公开(公告)号：JPH07181353A
公开(公告)日：1995-07-21
申请号：JP26987894
申请日：1994-11-02
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO , HINO TOSHIHIKO , OKUMURA KAZUAKI , KOBAYASHI AKIRA , NAGAI TSUTOMU
IPC: G02B6/42 , G02B6/04 , H04B10/2507 , H04B10/27 , H04B10/02
Abstract: PURPOSE:To provide a new optical type light switch having the function equal to an electrostatic switch. CONSTITUTION:A phototransistor 20 is arranged on the output end surface of a fiber optical plate l to constitute a light switch. The fiber optical plate 1 is constituted so as to cover the outer circumferential part of a clad covering a cover with an absorbing body, and the inclination theta of an input end surface 2 is set to an angle such that the light incident to the core from the air never cause total reflection on the boundary surface with the clad. Thus, only the light incident from the part making contact with a finger 22 is propagated to the output end surface 3.
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公开(公告)号：JP2011043773A
公开(公告)日：2011-03-03
申请号：JP2009193561
申请日：2009-08-24
Applicant: Hamamatsu Photonics Kk , 浜松ホトニクス株式会社
Inventor： SUGAWARA TAKEO , YAMAUCHI SHIGEYASU
IPC: G02B6/04
Abstract: PROBLEM TO BE SOLVED: To provide a fiber optical plate and a fingerprint detector which can easily and reliably detect a rotational fingerprint image.
SOLUTION: The fiber optical plate 1 includes: an input face 2 composed of one end side faces of a plurality of optical fibers F, on which the end part of a finger is placed to input a fingerprint image to the optical fibers F; and an output face 3 composed of the other end faces of the plurality of optical fibers F to output the fingerprint image transmitted through the optical fibers F. The input face 2 is formed in a concave face along a portion of the side face of a circular cone CC which has a center line CL which is substantially parallel to the optical axis of the respective optical fibers F. The input face 2 and the surface of the end part of the finger are brought into close contact with each other, and the rotational fingerprint image of the end part of the finger is easily and reliably detected.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种能够容易且可靠地检测旋转指纹图像的光纤光学板和指纹检测器。 解决方案：光纤板1包括：由多根光纤F的一个端面构成的输入面2，其上放置有手指的端部以将指纹图像输入到光纤F ; 以及由多根光纤F的其他端面构成的输出面3，输出通过光纤F透射的指纹图像。输入面2沿圆形的侧面的一部分形成为凹面 锥形CC具有基本上平行于各个光纤F的光轴的中心线CL.输入面2和手指的端部的表面彼此紧密接触，并且旋转指纹 能够容易且可靠地检测手指的端部的图像。 版权所有（C）2011，JPO＆INPIT
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Patent Agency Ranking86.发明专利Curved surface shape inspection method, fiber optic block, and curved surface shape inspection apparatus 有权弯曲表面形状检查方法，纤维光学块和弯曲表面形状检查装置
公开(公告)号：JP2005201817A
公开(公告)日：2005-07-28
申请号：JP2004009698
申请日：2004-01-16
Applicant: Hamamatsu Photonics Kk , 浜松ホトニクス株式会社
Inventor： NONAKA KATSUTOSHI , SUGAWARA TAKEO
CPC classification number: G01B5/213
Abstract: PROBLEM TO BE SOLVED: To provide a curved surface shape inspection method which enables the inspection of a curved surface shape easily, a fiber optic block used in the inspection method, and a curved surface shape inspection apparatus applying the fiber optic block. SOLUTION: The fiber optic block 10 is formed by bundling and integrating a plurality of optical fibers 11, each of which comprises a core region 12 and a clad region 13 surrounding the core region. An input end face 14 which comprises one end of each optical fiber and of which at least a part is curved and a measurement surface having curved surface shape in an object to be measured are pressed against each other. The curved surface shape of the object to be measured is inspected by using an optical image 32 which is outputted from an output end face 15 of the fiber optic block positioned on the opposite side with respect to the input end face and is formed by bringing the input end face into contact with the measurement surface. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种能够容易地检测曲面形状的曲面形状检查方法，用于检查方法的光纤块和应用光纤块的曲面形状检查装置。 解决方案：光纤块10通过捆绑和集成多个光纤11形成，每个光纤11包括芯区域12和围绕芯区域的包层区域13。 输入端面14，其包括每个光纤的一端，并且其至少一部分是弯曲的，并且在被测量物体中具有曲面形状的测量表面彼此挤压。 通过使用从相对于输入端面位于相对侧的光纤块的输出端面15输出的光学图像32来检查被测量物体的弯曲表面形状，并且通过使 输入端面与测量表面接触。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JPH10208022A
公开(公告)日：1998-08-07
申请号：JP1051897
申请日：1997-01-23
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO
Abstract: PROBLEM TO BE SOLVED: To provide a fiber optical plate which outputs a bright rugged image, is easily attached to a photodetector and is compact even after it is attached. SOLUTION: In this fiber optical plate, recessed parts 20 are provided on ends which are located on the side of input end planes 2 of the fiber optical plate between both ends of unit fibers 6, and light is made incident through the side planes 22 of the parts 20. Because the planes 22 are inclined at angles that can eliminate diffused external light in the air, this fiber optical plate outputs a rugged image that has high contrast. Because the fiber optical plate has an output edge plane 4 that is perpendicular to an axis line 14 of the unit fibers, a bright rugged image is acquired when the plane 4 is matched to an input plane of the photodetector and fixed. Also, it has a shape that perpendicularly extends from the plane 4, it is easily attached to a photodetector and is compact after the attachment.
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公开(公告)号：JPH09288222A
公开(公告)日：1997-11-04
申请号：JP10015696
申请日：1996-04-22
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO
Abstract: PROBLEM TO BE SOLVED: To reduce light loss in splicing plates by providing a 2nd plate which has an incident surface and an emitting surface nearly orthogonally crossed with the optical axis of an optical fiber and whose incident surface is spliced with the emitting surface of the 1st plate. SOLUTION: The 1st plate 2 is obtained by bundling and integrating plural optical fibers 21 turned in the same direction, and has the incident surface 22 and the emitting surface 23 formed obliquely to the optical axis direction of the optical fiber 21. Meanwhile, the 2nd plate 3 is obtained by bundling and integrating plural optical fibers 31 turned in the same direction, and has the incident surface 32 and the emitting surface 33 formed nearly perpendicular to the optical axis direction of the optical fiber 31. Thus, the light made incident on the 1st plate is surely emitted from the emitting surface 23 formed obliquely and made incident on the 2nd plate. Therefore, the light loss at the spliced part of the 1st and the 2nd plates is reduced.
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公开(公告)号：JPH0943439A
公开(公告)日：1997-02-14
申请号：JP19050995
申请日：1995-07-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO
Abstract: PROBLEM TO BE SOLVED: To form a touch face flat and also to make the whole device thinner even in the case of constituting a touch sensor by using a fiber optical plate. SOLUTION: The numerical aperture of an incident end plane of a slant FOP 20 is set larger than the numerical aperture of the exiting end plane of a slant FOP 10, then, the light emitted from the slant FOP 10 is efficiently made incident on the slant FOP 20. A detection surface 11 and an output end plane 32 are arranged so as to have a positional relation of orthogonally crossing each other, thus, the detection surface 11 is formed at the same level as the touch surface F. Besides, a detection element such as a CCD 50, etc., is arranged at the output end plane 32 along the rear side of the touch surface F.
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公开(公告)号：JPH07270537A
公开(公告)日：1995-10-20
申请号：JP5905694
申请日：1994-03-29
Applicant: HAMAMATSU PHOTONICS KK
Inventor： SUGAWARA TAKEO , HINO TOSHIHIKO , SUZUKI MAKOTO
Abstract: PURPOSE:To obtain a compact radiation image detector by providing a solid- state image sensing device so that the plane of incidence of light is opposed to the light output end face, and by lessening the length in the direction of incidence of light of an optical fiber plate. CONSTITUTION:CCD 2 is provided on the light output end face of an optical fiber plate 3 having the light output end face and light incidence end face 31 which intersect the direction of waveguide of light respectively and are orthogonal substantially to each other. Since the end face 31 is coated with a material having a scintillation function, the light generated by a radiation falling on the end face 31 is propagated in the direction of waveguide of the light and, therefore, it is emitted from the light output end face and cast on the plane of incidence of light of the CCD 2. Since the plane of incidence of light of the CCD 2 and the end face 31 are orthogonal substantially to each other, the radiation falling vertically substantially on the end face 31 advances straight in parallel practically to the plane of incidence of light of the CCD 2 and, therefore, the radiation does not fall on the plane of incidence of light of the CCD 2. Besides, the radiation is not guided either by the plate 3 coupling the plane of incidence of light of the CCD 2 with the end face 31 optically.
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