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公开(公告)号：JP4579283B2
公开(公告)日：2010-11-10
申请号：JP2007300861
申请日：2007-11-20
Applicant: トヨタ自動車株式会社 , 学校法人トヨタ学園 , 日立電線株式会社 , 株式会社豊田中央研究所
CPC classification number: H01S3/06708 , H01S3/06745 , H01S3/094003 , H01S3/0941
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公开(公告)号：JP4851996B2
公开(公告)日：2012-01-11
申请号：JP2007157510
申请日：2007-06-14
Applicant: トヨタ自動車株式会社 , 学校法人トヨタ学園 , 日立電線株式会社
IPC: C03B37/027 , C03B37/029 , H01S3/06
CPC classification number: C03B37/02727
Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber whose conversion efficiency is not lowered by a thermal effect (heat dispersion) and a nonlinear effect and which has optimum absorption characteristics and to provide its producing method. SOLUTION: The optical fiber 1 comprises: a core 2 added with a rare earth element which acts as a gain medium; and a clad 3 formed on the outer periphery of the core 2, wherein the fictive temperature of the core 2 is 1,500°C or lower. COPYRIGHT: (C)2009,JPO&INPIT
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公开(公告)号：JP4452296B2
公开(公告)日：2010-04-21
申请号：JP2007214652
申请日：2007-08-21
Applicant: トヨタ自動車株式会社 , 学校法人トヨタ学園 , 日立電線株式会社
CPC classification number: G02B6/4204 , G02B6/4296 , H01S3/06729 , H01S3/06754 , H01S3/094019 , H01S3/094057 , H01S3/09415
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公开(公告)号：JP4554247B2
公开(公告)日：2010-09-29
申请号：JP2004087746
申请日：2004-03-24
Applicant: トヨタ自動車株式会社 , 株式会社豊田中央研究所
IPC: H01S5/187
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公开(公告)号：JP3968323B2
公开(公告)日：2007-08-29
申请号：JP2003122655
申请日：2003-04-25
Applicant: トヨタ自動車株式会社 , 株式会社豊田中央研究所
IPC: G02B6/28
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Patent Agency Ranking
公开(公告)号：JP5455350B2
公开(公告)日：2014-03-26
申请号：JP2008271808
申请日：2008-10-22
Applicant: 学校法人トヨタ学園 , トヨタ自動車株式会社
CPC classification number: C03B37/027 , C03B2205/20
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公开(公告)号：JP4170890B2
公开(公告)日：2008-10-22
申请号：JP2003407010
申请日：2003-12-05
Applicant: トヨタ自動車株式会社 , 三菱電機株式会社
Abstract: PROBLEM TO BE SOLVED: To obtain a rod type solid laser device wherein the rate of its laser output beam guided to an optical fiber can be kept constant even when the thermal lens of its rod type solid laser medium is varied. SOLUTION: In the rod type solid laser device, a laser beam 5 is generated from a rod type solid laser medium 1 by using an optical resonator comprising a total reflecting mirror 3 and a partial reflecting mirror 4, focused by using a coupling lens 7, and guided to an optical fiber 9. The aperture diameter of an aperture 8 which restricts the diameter of the incident beam to the coupling lens 7 is made variable, and a controlling means 12 for controlling the aperture diameter is provided. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP4141485B2
公开(公告)日：2008-08-27
申请号：JP2006196862
申请日：2006-07-19
Applicant: トヨタ自動車株式会社 , 株式会社 レーザックス
CPC classification number: B23K26/04
Abstract: A laser processing system and a laser processing method that can highly accurately and efficiently specify a focus position of a processing laser using visible lasers are provided. For that purpose, a laser processing system (100) includes a processing laser oscillator (1), a condensing optical system (3) including a condenser lens (32), two visible laser oscillators (51) and (52), a movement adjusting unit that adjusts the condenser lens (32) and the visible laser oscillators (51) and (52) to move forward and backward in synchronization with each other, an imaging unit that images spot lights of the visible lasers on a workpiece (W), an image processing unit that subjects an imaged video to image processing and displays an image after the processing, a calculating unit that calculates, in a state in which the respective visible lasers are focused on a focus position of the processing laser, center of gravity positions of spot lights of the respective visible lasers formed on the surface of the workpiece (W) according to the movement of the condenser lens (32) and calculates a distance between centers of gravity, and a control unit that controls the movement adjusting unit such that the distance between centers of gravity is adjusted to zero or substantially zero.
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