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公开(公告)号：US11787116B2
公开(公告)日：2023-10-17
申请号：US17784523
申请日：2020-12-11
Applicant: Stratasys Powder Production Ltd.
IPC: B29C64/286 , B33Y30/00 , B29C64/282 , B29C64/153 , B29C64/245 , B29C64/236
CPC classification number: B29C64/286 , B29C64/153 , B29C64/236 , B29C64/245 , B29C64/282 , B33Y30/00
Abstract: An infrared radiation deflector (100) for an elongate infrared lamp (110), the radiation deflector (100) comprising opposing first and second elongate side walls (130_1, 130_2); at least one end support (170) connecting the ends of the side walls (130_1, 130_2); an upper opening (140) and a lower opening (150) arranged to pass lamp radiation to an exterior of the radiation deflector (100); and a mounting point (172) provided at the/each end support (170) for mounting the infrared lamp (110) and defining between them a lamp axis location (114); wherein the first and second elongate side walls (130_1, 130_2) comprise a first elongate mirror (130_1) and a second elongate mirror (130_2) extending parallel to the lamp axis location (114) and along at least a lower internal portion of the respective first and second side walls (130_1, 130_2); wherein the lamp axis location (114) extends along and between the first mirror (130_1) and the second mirror (130_2), the first and second mirror (130_1, 130_2) each having a concave surface with respect to the lamp axis location (114); and wherein the first mirror (130_1) is an upward deflecting mirror and further arranged to be concave with respect to the upper opening (140) for redirecting at least a portion of direct lamp radiation through the upper opening (140).
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公开(公告)号：US12138859B2
公开(公告)日：2024-11-12
申请号：US18367346
申请日：2023-09-12
Applicant: Stratasys Powder Production Ltd.
IPC: B29C64/286 , B29C64/153 , B29C64/236 , B29C64/245 , B29C64/282 , B33Y30/00
Abstract: An apparatus for formation of three-dimensional objects and having an infrared radiation deflector. The radiation deflector includes opposing first and second elongate side walls; at least one end support connecting the side walls; an upper opening and a lower opening arranged to pass lamp radiation to an exterior of the radiation deflector; and a mounting point provided at the/each end support for mounting an infrared lamp. The side walls include first and second elongate mirrors extending parallel to a lamp axis and along a lower internal portion of the respective side walls. The lamp axis extends along and between the first and second mirrors, each of which has a concave surface with respect to the lamp axis. The first mirror is an upward deflecting mirror and is arranged for redirecting at least a portion of direct lamp radiation through the upper opening.
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3.发明授权公开(公告)号：US12115729B2
公开(公告)日：2024-10-15
申请号：US17610153
申请日：2020-12-11
Applicant: Stratasys Powder Production Ltd.
IPC: B29C64/286 , B29C64/153 , B29C64/236 , B29C64/245 , B29C64/282 , B33Y30/00
CPC classification number: B29C64/286 , B29C64/153 , B29C64/236 , B29C64/245 , B29C64/282 , B33Y30/00
Abstract: An infrared lamp assembly for an apparatus for the formation of three-dimensional objects by consolidation of particulate material, the assembly comprising: an elongate infrared lamp extending along a lamp axis, an elongate shield extending parallel to and along one side of the axis of the lamp, and a support structure holding at least one of the ends of the lamp and of the shield, wherein the elongate shield at least partially bounds the space to one side of the lamp, and wherein the assembly provides a lower opening below the lamp and an upper opening above the lamp, such that, in use, radiation generated by the lamp is able to radiate through the openings and away from the lamp in directions not bounded by the shield.
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