CAD/CAM STEREOLITHOGRAPHIC DATA CONVERSION

• Main Authors: HARLOW, RICHARD A, LEWIS, CHARLES, STEINBURGH, PHILIP, ALBERT, DAVID J, NGUYEN, HOP D, SMALLEY, DENNIS ROLLETTE, SPENCE, STUART THOMAS, VORGITCH, TOM J, REMBA, DAVID Z, TARNOFF, HARRY L, HULL, CHARLES WILLIAM
• Format: Patent
• Language: English; Korean
• Published: 01.06.2000
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPARATUS SPECIALLY ADAPTED THEREFOR; AUXILIARY PROCESSES IN PHOTOGRAPHY; CALCULATING; CINEMATOGRAPHY; COLORIMETRY; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTROGRAPHY; HOLOGRAPHY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MATERIALS THEREFOR; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; ORIGINALS THEREFOR; PERFORMING OPERATIONS; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; RADIATION PYROMETRY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

"스테레오리소그래픽"은 예를들면 자외선 경화성물질과 같이 경화성물질의 얇은 층을 연속적으로, 겹겹이 쌓아가며 "인쇄"함에 의해서 고체물질을 제작하는 방법과 장치이다. 자외선 경화성 액체의 표면 또는 층에 조사되는 프로그램된 가동(可動)자외선 스포트(spot)빔이 액체의 표면에 물체의 고체성 단면을 형성하기 위해 사용되고 있다. 그리고 나서는 물체를 프로그램된 방법에 따라 액체 표면으로부터 한층의 두께만큼 이동시키고, 그후에 다음 단면이 형성되어 물체를 정의하는 바로 전의 층에 부착된다. 이 프로세스는 완전한 물체가 형성될 때까지 계속된다. 복잡한 형상은, 컴퓨터의 기능을 사용하여 프로그램된 명령을 발생시키고 다시 프로그램 신호는 스테레오리소그래픽 물체 형성 서브시스템(subsystem)으로 보내주는 방법에 의하여 보다 쉽게 제작할 수 있다. A method of forming a three-dimensional object layer-by-layer by selectively exposing a solidifiable fluid medium to a beam of prescribed stimulation capable of satisfying the medium, comprising: providing a surface shape set of data defining the surface shape of the object to be formed, manipulating the surface shape set of data to produce layer data relating to each of successive layers in the formation of the object, and forming each said of successive layer by scanning the fluid medium with said beam of prescribed stimulation in a vector fashion in accordance with the layer data for the layer, wherein the production of layer data for each layer includes the determination of the existence of different regions of a prescribed plurality of region type for scanning the layer in dependence upon the determined region types.