scholarly journals Low-cost, thermoplastic micro-lens array with a carbon black light screen for bio-mimetic vision

2021 ◽  
Vol 29 (22) ◽  
pp. 35172
Author(s):  
Changhoon Baek ◽  
Jungho Yi ◽  
Jong-mo Seo
Keyword(s):  
Carbon Black ◽  
Low Cost ◽  
Lens Array ◽  
Black Light ◽  
Micro Lens Array ◽  
Micro Lens

scholarly journals Manufacturing of Micro-Lens Array Using Contactless Micro-Embossing with an EDM-Mold

2018 ◽  
Vol 9 (1) ◽  
pp. 85 ◽  
Author(s):  
Kangsen Li ◽  
Gang Xu ◽  
Xinfang Huang ◽  
Zhiwen Xie ◽  
Feng Gong
Keyword(s):  
Friction Coefficient ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Low Cost ◽  
Processing Parameters ◽  
Radius Of Curvature ◽  
Compression Tests ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens

Micro embossing is an effective way to fabricate a polymethyl methacrylate (PMMA) specimen into micro-scale array structures with low cost and large volume production. A new method was proposed to fabricate a micro-lens array using a micro-electrical discharge machining (micro-EDM) mold. The micro-lens array with different shapes was established by controlling the processing parameters, including embossing temperature, embossing force, and holding time. In order to obtain the friction coefficient between the PMMA and the mold, ring compression tests were conducted on the Shenzhen University’s precision glass molding machine (SZU’s PGMM30). It was found that the friction coefficient between the PMMA specimen and the mold had an interesting change process with increasing of temperature, which affected the final shape and stress distribution of the compressed PMMA parts. The results of micro-optical imaging of micro-lens array indicated that the radius of curvature and local length could be controlled by adjusting the processing parameters. This method provides a basis for the fabrication and application of micro-lens arrays with low-cost, high efficiency, and mass production.

scholarly journals Phase Retrieval with a Diffractive Micro Lens Array

2014 ◽  
Vol 8 (4) ◽  
pp. 251-259
Author(s):  
Xiyuan Liu ◽  
Karl-Heinz Brenner
Keyword(s):  
Phase Retrieval ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens

The elliptical micro-lens array in the application of the LDA beam shaping

Optik ◽  
2014 ◽  
Vol 125 (24) ◽  
pp. 7149-7153 ◽  
Author(s):  
Bo Qiao ◽  
Ping Jiang ◽  
Huajun Yang ◽  
Xinwu Ma ◽  
Ming Xu
Keyword(s):  
Beam Shaping ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens

Fabrication of micro-lens array on convex surface by meaning of micro-milling

2014 ◽  
Author(s):  
Peng Zhang ◽  
Yunlong Du ◽  
Bo Wang ◽  
Debin Shan
Keyword(s):  
Convex Surface ◽  
Micro Milling ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens

An Anti-Counterfeiting Technique Based on Three-Dimensional Imaging Employing Micro-Lens Array

2015 ◽  
Vol 35 (s1) ◽  
pp. s111001
Author(s):  
郭书基 Guo Shuji ◽  
曹阿秀 Cao Axiu ◽  
史立芳 Shi Lifang ◽  
邓启凌 Deng Qiling ◽  
吴向东 Wu Xiangdong
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Imaging ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens
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