Light Pipe Line Beam Shaper

Chen, Cheng-Huan; Chen, Chien Chuan; Liang, Wei Chien

doi:10.1007/s10043-007-0231-x

Cited by 9 publications

(8 citation statements)

References 21 publications

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“…The basic concept of the light pipe integrator or beam shaper is to mix the light from the source by means of multiple reflections so as to obtain a uniform irradiance distribution at the outlet of the light pipe [14]. This uniform distribution is then transferred or imaged onto the target by collimation relay optics and an imaging lens with a desired demagnification ratio.…”

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

“…No matter the application, the choice of beam shaping technology depends greatly on the characteristics of the laser source and the material processing parameters. Light pipes have been successfully used as beam shaping devices for lithography tools and offer flexibility in scaling laser beams for line scan applications [14]. When high powered lasers are used light pipes offer benefits since they utilize high damage threshold reflective coating or can use total internal reflection which offers high efficiency.…”

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

“…The beam shaping function can be achieved if the relay optics can completely transfer the uniform distribution. However, in making a long line beam, the complication will come from the relay optics for a few reasons often associated with wide angle optics [14]. For the large angle off-axis imaging, the light flux could be significantly lost due to partial reflection at optical surfaces, vignetting or aberration [14].…”

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

“…A light pipe integrator or a channel integrator has been considered as a variation of a reflective type multi-aperture beam integrator [13,14]. As discussed in section 4, beam integrators are perfectly suited to high powered lasers with highly irregular irradiance distribution.…”

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

“…Today most light pipes are used as an optical solution for projectors and automobile lighting illumination systems where the light source is of a high intensity In the market today, numerous design have been applied to commercial vehicles for head lamps which use high intensity discharge lamps (HID) and high brightness light emitting diodes (LEDs) [12,14].…”

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

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Axicons, prisms and integrators: searching for simple laser beam shaping solutions

Lizotte

2010

SPIE Proceedings

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Over the last thirty five years there have been many papers presented at numerous conferences and published within a host of optical journals. What is presented in many cases is either too exotic or technically challenging in practical application terms and it could be said both are testaments to the imagination of engineers and researchers.For many brute force laser processing applications such as paint stripping, large area ablation or general skiving of flex circuits, the opportunity to use a beam shaper that is inexpensive is a welcomed tool. Shaping the laser beam for less demanding applications, provides for a more uniform removal rate and increases the overall quality of the part being processed. It is a well known fact customers like their parts to look good. Many times, complex optical beam shaping techniques are considered because no one is aware of the historical solutions that have been lost to the ages. These complex solutions can range in price from $10,000 to $60,000 and require many months to design and fabricate. This paper will provide an overview of various beam shaping techniques that are both elegant and simple in concept and design. Optical techniques using axicons, prisms and reflective integrators will be discussed in an overview format.

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Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%

Section: Kaleidoscopes Light Pipes and Channel Integratorsmentioning

confidence: 99%