[특허]Method of making a three-dimensional object by stereolithography

Method of making a three-dimensional object by stereolithography 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-035/08 B29C-041/02
출원번호	US-0702031 (1991-05-17)
발명자 / 주소	Allison Joseph W. (Valencia CA) Richter Jan (Los Angeles CA) Childers Craig M. (Santa Clarita CA) Smalley Dennis R. (Baldwin Park CA) Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta C
출원인 / 주소	3D Systems, Inc. (Valencia CA 02)
인용정보	피인용 횟수 : 74 인용 특허 : 0

초록 ▼

An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.

대표청구항 ▼

In a stereolithographic method for constructing an object from a medium solidifiable upon exposure to synergistic stimulation, comprising the successive formation of layers of the medium applied to previously formed layers of the medium, each layer of the medium having a desired thickness, and selectively exposing the layers to synergistic stimulation in a pattern corresponding to cross-sections of the three-dimensional object, to build up the three-dimensional object layer by layer, the pattern including paths of exposure defined by vectors, with the exposure of the vectors resulting in a cure depth and a cure width, the improvement comprising the steps of: partially solidifying a portion of a first layer according to a first set of vectors, the vectors of the first set being substantially parallel to each other with their exposure specified such that the resulting cure depth of the vectors of the first set is less than the desired thickness of the first layer of the medium and with adjacent vectors of the first set spaced apart from each other by at least the cure width; and at least partially solidifying the portion of the first layer with a second set of vectors with adjacent vectors of the second set spaced apart from each other by at least the cure width, the vectors of the second set being substantially parallel to each other and not parallel to the vectors of the first set, such that at least some of the vectors of the second set intersect at least some of the vectors of the first set, the vectors of the second set having exposure specified such that their resulting cure depth achieves adhesion to the previously formed layer only at points where vectors of the second set overlap vectors of the first set, with no adhesion occurring at points where vectors of the first set and second set do not overlap.

이 특허를 인용한 특허 (74)

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Sterett Robert A. (Jackson MI) Sudhalkar Atul M. (Ann Arbor MI), Method and apparatus for creating a free-form three-dimensional article using a layer-by-layer deposition of a support m.
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Allison Joseph W. (Valencia CA) Smalley Dennis R. (Baldwin Park CA) Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta CA), Method of making a three-dimensional object by stereolithography.
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Allison Joseph W. ; Richter Jan ; Childers Craig Matthew ; Smalley Dennis R. ; Hull Charles W. ; Jacobs Paul F., Method of making a three-dimensional object by stereolithography.
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Childers Craig M. (Santa Clarita CA) Hull Charles W. (Santa Clarita CA), Method of making a three-dimensional object by stereolithography.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Method of making a three-dimensional object by stereolithography 원문보기

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Method of making a three-dimensional object by stereolithography 원문보기

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연구과제 타임라인

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