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Stereolithography systems and methods using internal laser modulation

A technology of lasers and lasers, applied in the field of stereolithography systems and methods using internal laser modulation, capable of solving problems such as shortening the life of lasers

Active Publication Date: 2013-09-25
3D SYST INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Furthermore, operating the DPFMSS laser at maximum power for extended periods shortens the lifetime of the laser

Method used

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  • Stereolithography systems and methods using internal laser modulation
  • Stereolithography systems and methods using internal laser modulation
  • Stereolithography systems and methods using internal laser modulation

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Embodiment Construction

[0033] The following US patents are incorporated by reference as a whole: 5,339,323; 5,840,239; 6,001,297; 6,141,369; 6,172,996; 6,215,095; 6,590,911; 6,931,035; 7,130,321, and 7,292,387.

[0034] The following non-patent references are incorporated by reference as a whole:

[0035] "Fundamental Processes," Rapid Prototyping & Manufacturing: Fundamentals of Stereolithography , Ed: P.F. Jacobs. pp. 79-110, Society of Manufacturing Engineers, Dearborn, Mich., 1992; and

[0036] "Photopolymer Photospeed and Laser Scanning Velocity," Advances in the Imaging System, Stereolithography and other RP&M Technologies, P. F. Jacobs, pp 54-56, 110-112, Society of Manufacturing Engineers, Dearborn, Mich., 1996.

[0037] Stereolithography

[0038] Currently, stereolithography is the dominant method of rapid prototyping and manufacturing (RP&M). Stereolithography can be defined as a technique for automatically manufacturing three-dimensional objects from fluid-like building materials, which utilizes...

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Abstract

Stereolithography systems (10) and methods using internal laser modulation are disclosed. The system includes an internally modulated diode-pumped frequency-multiplied solid-state (DPFMSS) laser 40. There is no external modulation system (EMS) within an external optical path (OPE) between the laser and a scanning system (80). The scanning system directs a laser beam (72) with laser pulses (72P) to a focus position (FP) on surface (23) of a build material (22) to form bullets (25) therein to define a build layer (30) based on build instructions for forming a three-dimensional object (32).

Description

[0001] priority claim [0002] This application claims the benefit of priority under 35 U.S.C. §119(e) to U.S. Provisional Application Serial No. 61 / 417,719, filed November 29, 2010, which is hereby incorporated by reference. This application also claims priority under Chapter 36 to International Application No. PCT / US11 / 62361, filed November 29, 2011, which application is hereby incorporated by reference. technical field [0003] The present disclosure is directed to stereolithography systems, and in particular to stereolithography systems and methods using internal laser modulation, and in particular current modulation or pulse width modulation. Background technique [0004] Several techniques currently exist for the rapid creation of models, prototypes and objects ("parts") for limited-run manufacturing. These rapid prototyping technologies are generally called solid freeform fabrication (SFF, solid freeform fabrication) technologies. [0005] Generally, in SFF, three-d...

Claims

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Application Information

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IPC IPC(8): B29C67/00
CPCB29C64/124
Inventor G·库珀
Owner 3D SYST INC
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