公开(公告)号：US20170036299A1

公开(公告)日：2017-02-09

申请号：US14908417

申请日：2015-03-23

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Saneyuki Goya ,  Toshiya Watanabe ,  Minoru Danno

IPC: B23K26/06 ,  B23K26/354 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/00 ,  B29C67/00

CPC classification number: B23K26/0643 ,  B23K26/046 ,  B23K26/342 ,  B23K26/354 ,  B23K26/60 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A laser heating control mechanism according to this invention is a mechanism that performs proper adjustment of preheating or postheating by a simple operation in three-dimensional shaping. The laser heating control mechanism is a laser heating control mechanism for preheating or postheating a heating target object. The laser heating control mechanism includes an optical fiber that transmits a laser beam and radiates the laser beam from an opening end face, a collimation optical system that fucuses the laser beam radiated from the opening end face onto the heating target object, and an irradiation range adjustment mechanism that adjusts the distance between the opening end face and the collimation optical system along the irradiation axis of the laser beam so as to irradiate the heating target object with the laser beam at a predetermined beam diameter.

Abstract translation: 根据本发明的激光加热控制机构是通过三维成形中的简单操作来进行预热或后加热的适当调整的机构。 激光加热控制机构是用于对加热目标物体进行预热或后加热的激光加热控制机构。 激光加热控制机构包括：透光激光束并从开口端面照射激光束的光纤;将从开口端面辐射的激光束分散到加热对象物上的准直光学系统;以及照射范围 调节机构，其调整沿着激光束的照射轴的开口端面与准直光学系统之间的距离，以便以预定的光束直径照射加热对象物体。

公开(公告)号：US09863803B2

公开(公告)日：2018-01-09

申请号：US14763153

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yoshihito Fujita ,  Saneyuki Goya

IPC: G02B6/36 ,  G01J1/04 ,  G01J1/02 ,  B23K26/03 ,  B23K26/14

CPC classification number: G01J1/0425 ,  B23K26/032 ,  B23K26/1462 ,  G01J1/0266 ,  G01J1/0422 ,  G02B6/3624

Abstract: This invention is directed to reliably condensing weak light by a sensor arranged at a position spaced apart from a processing position. The optical processing head includes a light guide that guides light for irradiating a processing position. The optical processing head further includes a light transmitter that has one end arranged near the distal end of the light guide and the other end connected to a photodetector, condenses reflected light traveling from the processing position, and transmits it to the photodetector. The optical processing head includes at least one light transmitter as its feature.

公开(公告)号：US10162187B2

公开(公告)日：2018-12-25

申请号：US14763151

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Saneyuki Goya ,  Toshiya Watanabe ,  Minoru Danno ,  Yoshihito Fujita ,  Haruhiko Niitani

IPC: G02B27/14 ,  B23K26/36 ,  G02B27/10 ,  G01J1/04 ,  G02B5/20

Abstract: This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.