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上海交通大学 机械与动力工程学院, 上海 200240
[ "王之岳(1997-),男,河南安阳人,硕士研究生,2019年于上海交通大学获得学士学位,主要从事超精密光学加工补偿方面的研究。E-mail: slocked@sjtu.edu.cn" ]
[ "张鑫泉(1986-),男,上海人,副教授,2008年于哈尔滨工业大学获得学士学位,2012年于新加坡国立大学获得博士学位,现为上海交通大学机械与动力工程学院长聘副教授,主要从事超精密智能制造、智能光学系统方面的研究。E-mail: zhangxinquan@sjtu.edu.cn" ]
收稿日期:2021-11-03,
修回日期:2021-11-26,
纸质出版日期:2022-04-10
移动端阅览
王之岳,陈灶灶,朱利民等.微透镜阵列单点金刚石车削补偿技术[J].光学精密工程,2022,30(07):813-820.
WANG Zhiyue,CHEN Zaozao,ZHU Limin,et al.Single point diamond turning and compensation for micro-lens array[J].Optics and Precision Engineering,2022,30(07):813-820.
王之岳,陈灶灶,朱利民等.微透镜阵列单点金刚石车削补偿技术[J].光学精密工程,2022,30(07):813-820. DOI: 10.37188/OPE.20223007.0813.
WANG Zhiyue,CHEN Zaozao,ZHU Limin,et al.Single point diamond turning and compensation for micro-lens array[J].Optics and Precision Engineering,2022,30(07):813-820. DOI: 10.37188/OPE.20223007.0813.
为了提高微透镜阵列单点金刚石车削的加工精度与一致性,提出了加工误差的理论模型,并针对其补偿方法进行了理论分析和实验研究。将微透镜阵列加工等效为自由曲面加工,通过建立单点金刚石慢刀伺服切削模型,计算了理论曲面在每一个切削点处沿切削方向的曲率半径;结合刀具等效倾斜角模型和机床加工时延模型,进一步得到了慢刀伺服切削微透镜阵列误差面形的理论预测值。然后,使用原位测量设备测量处理得到实际加工误差,将面形误差理论值与实际加工误差测量值比较,并将面形误差理论值预补偿到加工程序中。实验结果表明,面形误差理论值与实际加工误差测量值具有一致性,两者偏差在[
-
0.7
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,0.3
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];补偿加工后微透镜阵列的PV值从5.4
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4.23333359
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。所提出的微透镜阵列的单点金刚石车削加工与补偿方法能够预测误差面形,显著提升面形精度与一致性。
To improve the efficiency and consistency of machining micro-lens arrays using single point diamond turning, a theoretical model of surface residuals was proposed in this study. A compensation method for the model was then studied. The micro-lens array was regarded as a freeform surface. The radius of curvature at each cutting point along the cutting direction was calculated by establishing an slow slide servo (SSS) cutting model. Combined with the tool equivalent tilt angle and lathe delay models, the theoretical surface residuals of the freeform array in SSS were obtained. Subsequently, the actual surface residuals were measured and processed using in situ measurement. The theoretical and measured surface residuals were then compared and the surface residuals were compensated for in the machining program. The theoretical surface residuals are consistent with the actual ones, with an error range of [
-
0.7 μm,0.3 μm]. The peak to valley (PV) value is reduced from 5.4 μm to 0.6 μm after compensation. Therefore, the single point diamond turning and compensation method presented in this study is able to predict the surface residuals and significantly improve machining accuracy and consistency.
KIM Y B , PARK J , LEE W S , et al . Fabrication of microlens array by the tilted milling method to improve the surface morphology [J]. Materials and Manufacturing Processes , 2021 , 36 ( 10 ): 1171 - 1177 .
ZHOU M , ZHANG H J , CHEN S J . Study on diamond cutting of nonrationally symmetric microstructured surfaces with fast tool servo [J]. Materials and Manufacturing Processes , 2010 , 25 ( 6 ): 488 - 494 . doi: 10.1080/10426910903365836 http://dx.doi.org/10.1080/10426910903365836
LI D , WANG B , QIAO Z , et al . Ultraprecision machining of microlens arrays with integrated on-machine surface metrology [J]. Optics Express , 2019 , 27 ( 1 ): 212 - 224 . doi: 10.1364/oe.27.000212 http://dx.doi.org/10.1364/oe.27.000212
付博文 , 郭振 , 俞鹏飞 , 等 . 含微透镜的零模波导器件用于增强荧光信号强度 [J]. 光学 精密工程 , 2021 , 29 ( 8 ): 1921 - 1930 . doi: 10.37188/OPE.20212908.1921 http://dx.doi.org/10.37188/OPE.20212908.1921
FU B W , GUO ZH , YU P F , et al . Zero-mode waveguide device with microlens for enhancing fluorescence signal intensity [J]. Opt. Precision Eng. , 2021 , 29 ( 8 ): 1921 - 1930 . (in Chinese) . doi: 10.37188/OPE.20212908.1921 http://dx.doi.org/10.37188/OPE.20212908.1921
DI S , JIN J . Binocular microlens imaging system based on micro fabrication technology and its application in vein-enhanced display [J]. International Journal of Optomechatronics , 2019 , 13 ( 1 ): 30 - 40 . doi: 10.1080/15599612.2019.1634166 http://dx.doi.org/10.1080/15599612.2019.1634166
KIM Y K , JU J H , KIM S M . Replication of a glass microlens array using a vitreous carbon mold [J]. Optics Express , 2018 , 26 ( 12 ): 14936 - 14944 . doi: 10.1364/oe.26.014936 http://dx.doi.org/10.1364/oe.26.014936
YUAN W , LI L H , LEE W B , et al . Fabrication of microlens array and its application: a review [J]. Chinese Journal of Mechanical Engineering , 2018 , 31 : 16 . doi: 10.1186/s10033-018-0204-y http://dx.doi.org/10.1186/s10033-018-0204-y
HOU T X , ZHENG C , BAI S , et al . Fabrication, characterization, and applications of microlenses [J]. Applied Optics , 2015 , 54 ( 24 ): 7366 - 7376 . doi: 10.1364/ao.54.007366 http://dx.doi.org/10.1364/ao.54.007366
LIU X L , ZHANG X D , FANG F Z , et al . Influence of machining errors on form errors of microlens arrays in ultra-precision turning [J]. International Journal of Machine Tools and Manufacture , 2015 , 96 : 80 - 93 . doi: 10.1016/j.ijmachtools.2015.05.008 http://dx.doi.org/10.1016/j.ijmachtools.2015.05.008
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