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Research on Fabricating Process of Fresnel Lens

Author: HaiDaPeng
Tutor: SunTao
School: Harbin Institute of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Fresnel lens Diamond tools Fast tool servo Diamond turning
CLC: TH74
Type: Master's thesis
Year: 2007
Downloads: 736
Quote: 6
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Abstract


The development of micro-optical,particularly diffraction optics,make optical technology to continuously innovate,enable the traditional large-size optical components transform into miniaturization,array and having processing functions integrated optical components.Along with the rapid scientific and technological development,military applications,space technology,ultra-precision maching,information processing,optical fiber communications and many other fields have increasing the demand of the micro-optical elements fabricating.In many domestic units have launched the micro-optics research,But,there is little using single-point diamond turning.Despite some successes,but there is a considerable gap form mass production and practical applications,The key problem is that the Diamond Cutter Grinding level is low,and the level of the ultra-precision lathe design and manufacturing,from a certain extent,limit the use of diamond turning methods fabricating optical components.Based on the previous studies,we introduced the development condition and trend of the micro-optical technology at home and abroad.Using the Fresnel lens as example,do some analysis and research at the micro-optical elements diamond machining technology.Designed the diamond tools specifically for the micro-optical components turning,and have did some research in its grinding method.Sharpening a tip radius of 0.6μm tool and then application in experiment achieved good results.Machine design of the NC system to meet the Fresnel lens of two-way feed control.A conceptual experiment is carried out on machining hybrid optical lens used in Infrared imaging optics with diamond cutting technique.We have Fabricated a number of different structures and different sizes Fresnel lens.Use the CCI and PGI 1240 measured the fabricated lens.The work of this paper will set a solid process foundation for the use of diamond turning fabricating micro-optics.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Optical instruments
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