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公开(公告)号:US4893296A
公开(公告)日:1990-01-09
申请号:US219915
申请日:1988-07-15
申请人: Yoshiyuki Matsumoto , Hidehiro Kume , Koji Mitsumori , You Yoshitoshi , Etsufumi Yamamoto , Hiroshi Oinoue
发明人: Yoshiyuki Matsumoto , Hidehiro Kume , Koji Mitsumori , You Yoshitoshi , Etsufumi Yamamoto , Hiroshi Oinoue
CPC分类号: G11B7/1359 , G11B7/123 , G11B7/1356 , H01S5/02248 , H01S5/005 , H01S5/0683
摘要: An optical pickup device having a semiconductor laser element mounted on a substrate, a photo detector formed on the substrate to receive a laser beam emitted from the semiconductor laser element and an optical element mounted on the substrate to cover the photo detector to branch the direction of optical path of the laser beam, the optical element having its face opposing the semiconductor laser element formed as an inclined face on which a semitransparent reflection film is deposited. The optical path branching optical element is provided with preventing means by which, of laser beams incident on the optical element, a laser beam reflected and/or scattered within the optical element is prevented from irradiating the photo detector.
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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.
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3.
公开(公告)号:US5181193A
公开(公告)日:1993-01-19
申请号:US430132
申请日:1989-11-01
摘要: An optical pickup device for a recording and/or reproducing apparatus in which a light beam from a semiconductor laser element is converged by an object lens and irradiated on recording tracks of an optical disk and the light reflected by the disk is sensed to read and/or record data signals. The device includes photosensors each having an insensitive central zone and adapted to receive the reflected light to generate tracking error signals. The semiconductor laser element is so arranged that the light beam is projected on the optical disk so that the meridional plane of the light beam orthogonal to the junction plane of semiconductor layers of the semiconductor laser element is at such an angle with respect to a tangential line drawn to one of the recording tracks of the optical disk that non-symmetricities on both sides of said tangential line as a function of the de-focusing direction of the beam spot may be compensated.
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公开(公告)号:US4823331A
公开(公告)日:1989-04-18
申请号:US130112
申请日:1987-10-23
CPC分类号: G11B7/1356 , G11B7/0912 , G11B7/123 , G11B7/131 , G11B7/0925
摘要: The present invention relates to a focusing detection apparatus (1) for detecting a focusing state of an optical recording medium. So as to achieve compactness and low cost of the focusing detection apparatus (1), focusing detection using two photosensors (33) (34) located in front of and behind a convergent point of a beam (45) reflected by the optical recording medium can be achieved by a single prism (37), and a plurality of optical components (31) (33) (34) (37) are formed integrally and can be arranged on a single surface of a semiconductor substrate (32). The present invention is applicable to an optical head requiring compactness, light weight, and low cost as well as high performance.
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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.
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公开(公告)号:US4772784A
公开(公告)日:1988-09-20
申请号:US041140
申请日:1987-04-22
CPC分类号: G11B7/1381 , G02B1/10 , G11B7/123 , H01S5/02248 , H01S5/02292 , H01S5/0683
摘要: A semiconductor laser apparatus having a semiconductor laser diode for radiating a laser beam, a photodetector formed on a semiconductor substrate, a prism having a first plane for introducing the laser beam to a reflecting substance and introducing the beam reflected by the reflecting substance to the photodetector and a second plane facing to the photodetector, and a coating layer formed on the boundary between the semiconductor substrate and the prism, having a refractive index such that the laser beam incident from the first plane other than the laser beam reflected by the reflecting substance is inhibited from reaching the photodetector.
摘要翻译: 一种具有用于照射激光束的半导体激光二极管的半导体激光装置,形成在半导体衬底上的光电检测器,具有用于将激光束引入反射物质的第一平面的棱镜,并将由反射物质反射的光束引入到光电检测器 以及面对光电检测器的第二平面,以及形成在半导体衬底和棱镜之间的边界上的涂层,其折射率使得从由反射物质反射的激光束以外的第一平面入射的激光束是 禁止到达光电检测器。
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7.
公开(公告)号:US20140083657A1
公开(公告)日:2014-03-27
申请号:US14122558
申请日:2012-04-12
申请人: Takuya Kazusa , Kanji Akai , Daisuke Hiratsuka , Kiyoshi Yamakawa , Yasuhiro Ohkura , Yoshiyuki Matsumoto , Kenji Terano , Masami Suga
发明人: Takuya Kazusa , Kanji Akai , Daisuke Hiratsuka , Kiyoshi Yamakawa , Yasuhiro Ohkura , Yoshiyuki Matsumoto , Kenji Terano , Masami Suga
CPC分类号: F28F3/02 , B05D5/04 , B05D7/54 , B05D2350/20 , B32B15/085 , B32B15/088 , B32B15/20 , B32B2255/06 , B32B2255/205 , B32B2307/714 , B32B2307/7248 , B32B2307/728 , C09D5/00 , C09D5/08 , F24F1/0059 , F24F13/30 , F28F13/182 , F28F21/084 , F28F2245/02 , F28F2265/20
摘要: A fin for a heat exchanger of an air conditioning apparatus includes a base material, a hydrophilic layer, and a corrosion-resistant layer provided between the base material and the hydrophilic layer. A contact angle of a surface of the hydrophilic layer with water is no more than 50 degrees. A water content of the hydrophilic layer per dm2 of the surface of the hydrophilic layer being at least 60 mg/dm2 and no more than 300 mg/dm2.
摘要翻译: 用于空调装置的热交换器的翅片包括基材,亲水层和设置在基材和亲水层之间的耐腐蚀层。 亲水层的表面与水的接触角不大于50度。 亲水层表面的亲水层的水含量为每平方厘米至少为60mg / dm 2且不大于300mg / dm 2。
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公开(公告)号:US08511917B2
公开(公告)日:2013-08-20
申请号:US13302823
申请日:2011-11-22
申请人: Yoshiyuki Matsumoto
发明人: Yoshiyuki Matsumoto
IPC分类号: G03B9/10
摘要: A blade lever is provided with a roller bearing portion, which extends towards a shaft around which a roller is rotatably supported to prevent falling off of the roller. The roller bearing portion is provided within a range of movement of the shaft when the blade lever is driven in a direction of opening an aperture by a first blade and a second blade with an urging force of a blade return spring.
摘要翻译: 叶片杠杆设置有滚子轴承部分,该滚子轴承部分朝向轴旋转,辊可旋转地被支撑以防止滚落。 当叶片杆沿着由第一叶片打开孔的方向被驱动时,滚子轴承部分设置在轴的运动范围内,第二叶片具有叶片复位弹簧的作用力。
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公开(公告)号:US07641269B2
公开(公告)日:2010-01-05
申请号:US11659818
申请日:2005-09-29
IPC分类号: B60J1/02
CPC分类号: B62D25/04
摘要: In a vehicular body structure, left and right front pillars are provided closer to the longitudinal centerline of a vehicle than left and right corner sections of a compartment of the vehicle. First corner window (26) provided adjacent to one of the left and right front pillars (13) which is more remote from a driver's seat (24) has a greater opening area than a second corner window (25) provided adjacent to the other of the left and right pillars (11) which is closer to the driver's seat.
摘要翻译: 在车体结构中,左右前柱比车辆的车厢左侧和右侧角部分更靠近车辆纵向中心线设置。 与驾驶员座椅(24)更远的左右前支柱(13)中的一个邻近设置的第一拐角窗(26)具有比邻近另一侧设置的第二拐角窗(25)更大的开口面积 靠近驾驶员座椅的左右支柱(11)。
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公开(公告)号:US20080094200A1
公开(公告)日:2008-04-24
申请号:US11661787
申请日:2005-09-26
IPC分类号: B60Q1/26
CPC分类号: B60Q1/444
摘要: A vehicle brake light system (51) includes a plurality of lighting units (51a, 51b, 51c) arranged in a horizontally and vertically spaced apart relation on the rear of a vehicle. Horizontally spaced apart lighting units (51a, 51b, 51c) which are lower in position have a greater distance between their centers of gravity, and are adapted to be turned on when a larger braking force is applied to a brake pedal (61).
摘要翻译: 车辆制动灯系统(51)包括在车辆后部以水平和垂直间隔开的关系布置的多个照明单元(51a,51b,51c)。 位置较低的水平间隔开的照明单元(51a,51b,51c)在它们的重心之间具有更大的距离,并且当较大的制动力施加到制动踏板(61)时适于接通 )。
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