-
公开(公告)号：US5965982A
公开(公告)日：1999-10-12
申请号：US924141
申请日：1997-09-05
申请人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
发明人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
CPC分类号： H01J43/28
摘要： The present invention relates to a versatile side-on type photomultiplier comprising a structure for improving the uniformity in light receiving sensitivity. Disposed on the outer peripheral surface of a sealed envelope of this photomultiplier is a restricting member which guides light to be detected into, of the light receiving surface of a photocathode, an effective region where the light receiving sensitivity is high, thereby restraining the light to be detected from reaching the outside of the effective region.
摘要翻译： 本发明涉及一种通用的侧接式光电倍增管，其包括用于提高光接收灵敏度的均匀性的结构。 在该光电倍增管的密封外壳的外周面上配置有将被检测光引导到光电面的受光面的受光灵敏度高的有效区域的限制构件， 被检测到达到有效区域的外部。
-
2.发明授权Side-on type photomultiplier comprising an envelope having an opening, a lens element, and a lens positioning structure 失效侧面型光电倍增器，其包括具有开口的外壳，透镜元件和透镜定位结构
公开(公告)号：US5847380A
公开(公告)日：1998-12-08
申请号：US924263
申请日：1997-09-05
申请人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
发明人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
摘要： The present invention relates to a versatile side-on type photomultiplier comprising a structure for improving the uniformity in light receiving sensitivity. This photomultiplier comprises a positioning structure for precisely positioning, with respect to the light receiving surface of a photocathode, a lens element which guides light to be detected to a photocathode and constitutes a part of an envelope accommodating the photocathode. The precisely positioned lens element guides the light to be detected into, of the light receiving surface of the photocathode, an effective region where the light receiving sensitivity is high, thereby restraining the light to be detected from reaching the outside of the effective region.
摘要翻译： 本发明涉及一种通用的侧接式光电倍增管，其包括用于提高光接收灵敏度的均匀性的结构。 该光电倍增管包括用于相对于光电阴极的光接收表面精确定位将光检测的光引导到光电阴极并构成容纳光电阴极的封套的一部分的透镜元件的定位结构。 精确定位的透镜元件将待检测的光引导到光电阴极的光接收表面中，其中光接收灵敏度高的有效区域，从而抑制被检测的光到达有效区域的外部。
-
公开(公告)号：US6114621A
公开(公告)日：2000-09-05
申请号：US924651
申请日：1997-09-05
申请人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
发明人： Masumi Tachino , Hidehiro Kume , Suenori Kimura , Takashi Goto
摘要： The present invention relates to a magnetic shielding case comprising a structure for improving the uniformity in light receiving sensitivity of a phomultiplier while maintaining sufficient magnetic shielding function, and a light detecting apparatus including this magnetic shielding case. This apparatus comprises a photomultiplier and a magnetic shielding case accommodating the photomultiplier. In particular the magnetic shielding case comprises a housing having an opening for transmitting therethrough light to be detected which is directed to the photomultiplier; a lens element for guiding the light to be detected into an effective region on a photocathode; and a positioning structure for placing the photomultiplier at a desired position with respect to the lens element.
摘要翻译： 本发明涉及一种磁屏蔽壳体，其包括用于在保持足够的磁屏蔽功能的同时提高光电倍增管的光接收灵敏度的均匀性的结构，以及包括该磁屏蔽壳体的光检测装置。 该装置包括光电倍增管和容纳光电倍增管的磁屏蔽壳。 特别地，磁屏蔽壳包括具有用于透射被检测光的开口的壳体，其被引导到光电倍增管; 用于将被检测光引导到光电阴极的有效区域中的透镜元件; 以及用于将光电倍增管放置在相对于透镜元件的期望位置的定位结构。
-
公开(公告)号：US5864207A
公开(公告)日：1999-01-26
申请号：US879052
申请日：1997-06-19
申请人： Hidehiro Kume , Suenori Kimura
发明人： Hidehiro Kume , Suenori Kimura
IPC分类号： H01J43/28
CPC分类号： H01J43/28
摘要： A photomultiplier includes a photocathode (3); an electron multiplier section (60) for cascade-multiplying photoelectrons emitted from the photocathode (3); a faceplate (2) provided with the photocathode (3); a metal housing (1) accommodating the photocathode (3) and the electron multiplier section (60); and a structure disposed on the faceplate (2) for increasing the effective light entrance region of the faceplate (2). In a preferred embodiment the subject structure includes a lens element (30) attached to the faceplate for increasing the effective light entrance region of the faceplate (2). In order to improve the optical coupling efficiency, either the faceplate (2), or the lens element (30), or both the faceplate (2) and the lens element (30) may further include a protrusion.
摘要翻译： 光电倍增管包括光电阴极（3）; 用于从光电阴极（3）发射的用于级联乘法光电子的电子倍增器部分（60）; 设置有光电阴极（3）的面板（2）; 容纳所述光电阴极（3）和所述电子倍增部（60）的金属壳体（1）。 以及设置在面板（2）上用于增加面板（2）的有效光入射区域的结构。 在优选实施例中，被摄体结构包括附接到面板的透镜元件（30），用于增加面板（2）的有效光入射区域。 为了提高光耦合效率，面板（2）或透镜元件（30）或者面板（2）和透镜元件（30）两者都可以进一步包括突起。
-
5.发明申请公开(公告)号：US20070115479A1
公开(公告)日：2007-05-24
申请号：US11654815
申请日：2007-01-18
IPC分类号： G01B9/02
CPC分类号： G01D5/38
摘要： A displacement detection device having excellent stability with the lapse of time and suitable for reduction in size and weight includes: a light source for emitting light; polarizing light splitting unit for splitting the light emitted from the light source into two light beams having difference polarized components, radiating the two light beams to an external optical system, and combining the two light beams reflected by the external optical system to generate combined light; a phase plate provided between the light source and the polarizing light splitting unit and adapted for changing the polarization state of the light emitted from the light source and leading the light to the polarizing light splitting unit; light splitting films for splitting the combined light generated by the polarizing light splitting unit into plural light beams; polarizing units for transmitting only a predetermined polarized components of the split combined light beams; and light-receiving elements for photoelectrically converting coherent light beams transmitted through the polarizing units and thus generating an interference signal.
摘要翻译： 具有优异的时间稳定性和适合于减小尺寸和重量的位移检测装置包括：用于发光的光源; 偏振光分离单元，用于将从光源发射的光分成具有差分偏振分量的两个光束，将两个光束照射到外部光学系统，并且组合由外部光学系统反射的两个光束以产生组合光; 设置在所述光源和所述偏振光分离单元之间的相位板，用于改变从所述光源发射的光的偏振状态并将光引导到所述偏振光分离单元; 用于将由偏振光分离单元产生的组合光分离成多个光束的分光膜; 用于仅透射分离的组合光束的预定偏振分量的偏振单元; 以及用于光电转换透射通过偏振单元的相干光束并由此产生干涉信号的光接收元件。
-
公开(公告)号：US4897828A
公开(公告)日：1990-01-30
申请号：US219916
申请日：1988-07-15
申请人： You Yoshitoshi , Hidehiro Kume , Yoshiyuki Matsumoto , Koji Mitsumori , Etsufumi Yamamoto , Hiroshi Oinoue
发明人： You Yoshitoshi , Hidehiro Kume , Yoshiyuki Matsumoto , Koji Mitsumori , Etsufumi Yamamoto , Hiroshi Oinoue
CPC分类号： G11B7/1356 , G11B7/0912 , G11B7/123 , G11B7/13
摘要： A focusing error detecting apparatus having a first photo-detector of which the light receiving portion is halved to provide first and second light receiving portions asymmetrical with respect to the center of a beam spot of a bundle of incident laser beams, the first photo-detector being located in the optical path ahead of the focusing point of the bundle of the incident laser beams, a second photo-detector of which the light receiving portion is halved to provide first and second light receiving portions asymmetrical with respect to the center of a beam spot of a bundle of incident laser beams, the second photo-detector being located in the optical path behind a focussing point of the bundle of the incident laser beams and a calculating circuit for calculating a difference between a difference of detected outputs from the first and second light receiving portions of the first photo-detector and a difference of detected outputs from the first and second light receiving portions of the second photo-detector, thereby to derive a focusing error signal from the output of the calculating circuit.
-
公开(公告)号：US5181195A
公开(公告)日：1993-01-19
申请号：US700866
申请日：1991-05-16
申请人： Hidehiro Kume , Etsufumi Yamamoto
发明人： Hidehiro Kume , Etsufumi Yamamoto
CPC分类号： G11B7/0943
摘要： A tracking error signal generator for producing a tracking error signal by first detecting a light beam, which is irradiated from an optical pickup to an optical disc, by an optical detector so divided as to have two optical detecting portions in a direction of a recording track on the optical disc, and then controlling the light beam to follow the recording track on the optical disc in accordance with the detection outputs from the divided optical detector. The tracking error signal generator comprises first and second peak detecting means for detecting the respective peak values of detection output signals from the first and second optical detecting portions of the optical detector divided along the recording track on the optical disc, and arithmetic means for forming a difference signal between signals obtained by applying a coefficient smaller than 1 to multiply respectively the output signal of the first peak detecting means and the detection output of the first optical detecting portion, and signals obtained by applying a coefficient smaller than 1 to multiply respectively the output signal of the second peak detecting means and the detecting output of the second optical detecting portion.
-
公开(公告)号：US4873429A
公开(公告)日：1989-10-10
申请号：US152007
申请日：1988-02-03
CPC分类号： G11B7/1381 , G11B7/094 , G11B7/1356 , G11B7/0912
摘要： An optical pickup head comprising a substrate on which a optical sensor is formed, and an optical member adhered on said optical sensor on said substrate by an adhesive and including a semitransmissive reflective film adapted to reflect the light emitting from a laser source and to transmit the light returned from a second medium of a disk, characterized in that the refractive index of said optical member is set so as to be larger than the refractive index of said adhesive.
-
9.发明授权公开(公告)号：US07336367B2
公开(公告)日：2008-02-26
申请号：US11654815
申请日：2007-01-18
IPC分类号： G01B9/02
CPC分类号： G01D5/38
摘要： A displacement detection device having excellent stability with the lapse of time and suitable for reduction in size and weight includes: a light source for emitting light; polarizing light splitting unit for splitting the light emitted from the light source into two light beams having difference polarized components, radiating the two light beams to an external optical system, and combining the two light beams reflected by the external optical system to generate combined light; a phase plate provided between the light source and the polarizing light splitting unit and adapted for changing the polarization state of the light emitted from the light source and leading the light to the polarizing light splitting unit; light splitting films for splitting the combined light generated by the polarizing light splitting unit into plural light beams; polarizing units for transmitting only a predetermined polarized components of the split combined light beams; and light-receiving elements for photoelectrically converting coherent light beams transmitted through the polarizing units and thus generating an interference signal.
摘要翻译： 具有优异的时间稳定性和适合于减小尺寸和重量的位移检测装置包括：用于发光的光源; 偏振光分离单元，用于将从光源发射的光分成具有差分偏振分量的两个光束，将两个光束照射到外部光学系统，并且组合由外部光学系统反射的两个光束以产生组合光; 设置在所述光源和所述偏振光分离单元之间的相位板，用于改变从所述光源发射的光的偏振状态并将光引导到所述偏振光分离单元; 用于将由偏振光分离单元产生的组合光分离成多个光束的分光膜; 用于仅透射分离的组合光束的预定偏振分量的偏振单元; 以及用于光电转换透射通过偏振单元的相干光束并由此产生干涉信号的光接收元件。
-
10.发明授权Light-emitting/receiving combined unit and displacement sensors using the same 有权发光/接收组合单元和使用其的位移传感器公开(公告)号：US06980303B2
公开(公告)日：2005-12-27
申请号：US10240417
申请日：2002-02-01
CPC分类号： G01D5/38
摘要： The present invention provides a light emitting/receiving composite unit (1) for emitting and receiving lights, which includes a light source (3), an optical splitting unit (4) for splitting returning lights to the composite unit (1) into a plurality of lights, a polarizing unit (5) for increasing and decreasing quantity of lights transmitted therefrom corresponding to polarization state of the returning lights, and an optical receiving unit (6) which has a plurality of photo-detecting elements (6—1 to 6—4) for detecting the lights transmitted through the polarizing unit (5), which are unitedly integrated into one unit. Also, the present invention provides a displacement detection apparatus of grating interference type, which includes thus unitedly integrated composite unit (1), and an external optical system of an objective unit having a reflection type diffraction grating RG, a reflecting unit (R1a, R1b) for reflecting lights from the composite unit (1) to the reflection type diffraction grating RG, a polarizing unit (WP1a, WP1b) for changing polarization state of diffracted lights from the reflection type diffraction grating RG, and a reflecting unit (R2a, R2b) for reflecting lights transmitted through the polarizing unit (WP1a, WP1b) to cause the reflected lights go backward.
摘要翻译： 本发明提供了一种用于发光和接收光的发光/接收复合单元（1），其包括光源（3），用于将复归单元（1）的返回光分离成多个的光分离单元（4） 的光接收单元（6），其具有用于增加和减少与其相对应的返回光的偏振状态的光传输的光量;以及光接收单元（6），其具有多个光检测元件（6〜 用于检测透射通过偏振单元（5）的光，其被统一地集成到一个单元中。 此外，本发明提供一种光栅干涉型位移检测装置，其包括如此一体化的复合单元（1）和具有反射型衍射光栅RG的目标单元的外部光学系统，反射单元（R 1a ，用于将来自复合单元（1）的光反射到反射型衍射光栅RG的偏振单元（WP1a，WP1b），用于改变来自反射型衍射光栅RG的衍射光的偏振状态， 以及用于反射透射通过偏振单元（WP1a，WP1b）的光的反射单元（R 2 a，R 2 b），以使反射光向后移动。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.029 秒)
