N2 laser stereo-lithography

Saburoh Satoh, Takao Tanaka, Nobuya Hayashi, Chobei Yamabe

Research output: Contribution to journalConference article

Abstract

A number of pulsed and/or continuous wave lasers are applied in stereo-lithography. In particular, the He-Cd laser and Ar ion laser with a wavelength of 325 nm and 351/364 nm respectively are used as ultraviolet (UV) light source. Disadvantages of these lasers include inefficient output energy, which is less than 0.1%, large machine size, insufficient output power, and they are very expensive. In the near future, these lasers are expected to increasingly lack the requested performance for higher speed stereo-lithography systems. Moreover, there will be growing demands for lower cost apparatus. For the laser stereo-lithography, the N2 laser with cylindrical tube has been adopted to achieve a lower cost type UV light source. Because of its excellent output efficiency, it is expect to downsize the power supply and laser head, and allows air-cooling. Moreover we adopt an optical fiber system for its optics, because the N2 laser output beam divergence has an excessive. In view of this, attempts were made to develop a special design cylindrical tube as the UV light source. This paper reports the fundamental characteristics of this laser.

Original languageEnglish
Pages (from-to)183-186
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4088
DOIs
Publication statusPublished - Dec 1 2000
Externally publishedYes
Event1st International Symposium on Laser Precision Microfabrication - Omiya, Jpn
Duration: Jun 14 2000Jun 16 2000

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Stereolithography
Lithography
lithography
Laser
Lasers
lasers
ultraviolet radiation
light sources
Light sources
Ultraviolet
Output
output
tubes
Tube
air cooling
continuous wave lasers
Continuous wave lasers
laser outputs
power supplies
divergence

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

N2 laser stereo-lithography. / Satoh, Saburoh; Tanaka, Takao; Hayashi, Nobuya; Yamabe, Chobei.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4088, 01.12.2000, p. 183-186.

Research output: Contribution to journalConference article

Satoh, Saburoh ; Tanaka, Takao ; Hayashi, Nobuya ; Yamabe, Chobei. / N2 laser stereo-lithography. In: Proceedings of SPIE - The International Society for Optical Engineering. 2000 ; Vol. 4088. pp. 183-186.
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