scholarly journals An Optical Wavefront Sensor Based on a Double Layer Microlens Array

Sensors ◽  
2011 ◽  
Vol 11 (11) ◽  
pp. 10293-10307 ◽  
Author(s):  
Vinna Lin ◽  
Hsiang-Chun Wei ◽  
Hsin-Ta Hsieh ◽  
Guo-Dung John Su
Keyword(s):  
Double Layer ◽  
Microlens Array ◽  
Wavefront Sensor

Focal length measurement of microlens array for Shack–Hartmann wavefront sensor using interferometer

2013 ◽  
Vol 52 (12) ◽  
pp. 124103 ◽  
Author(s):  
M. Senthil Kumar ◽  
C. S. Narayanamurthy ◽  
A. S. Kiran Kumar
Keyword(s):  
Focal Length ◽  
Microlens Array ◽  
Length Measurement ◽  
Wavefront Sensor

Optimized microlens-array geometry for Hartmann–Shack wavefront sensor

2014 ◽  
Vol 55 ◽  
pp. 155-161 ◽  
Author(s):  
O.G. Oliveira ◽  
D.W. de Lima Monteiro ◽  
R.F.O. Costa
Keyword(s):  
Microlens Array ◽  
Wavefront Sensor ◽  
Array Geometry

A tunable Shack–Hartmann wavefront sensor based on a liquid-filled microlens array

2008 ◽  
Vol 18 (10) ◽  
pp. 105017 ◽  
Author(s):  
Yu Hongbin ◽  
Zhou Guangya ◽  
Chau Fook Siong ◽  
Lee Feiwen ◽  
Wang Shouhua
Keyword(s):  
Microlens Array ◽  
Wavefront Sensor

Integral imaging with double layer microlens array

2012 ◽  
Author(s):  
A. Md. Shariful Islam ◽  
B. Ki-Chul Kwon ◽  
C. Jae-Hyeung Park ◽  
D. Sang-Keun Gil ◽  
E. Nam Kim
Keyword(s):  
Double Layer ◽  
Microlens Array ◽  
Integral Imaging

scholarly journals Flexible Electrowetting-on-Dielectric Microlens Array Sheet

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 464 ◽  
Author(s):  
Kari L. Van Grinsven ◽  
Alireza Ousati Ashtiani ◽  
Hongrui Jiang
Keyword(s):  
Optical System ◽  
Cylindrical Surface ◽  
Microlens Array ◽  
Field Of View ◽  
Wavefront Sensor ◽  
Pdms Substrate ◽  
Lens Array ◽  
Electrowetting On Dielectric ◽  
Liquid Lenses ◽  
Liquid Lens

We have fabricated a fully-flexible, focus-tunable microlens array on a sheet and demonstrated its imaging capabilities. Each liquid lens of the array is individually tunable via electrowetting on dielectric (EWOD) actuation and is situated on a polydimethylsiloxane (PDMS) substrate, which allows the lens array to operate as a reconfigurable optical system. In particular, we observed a significant increase in the field of view (FOV) of the system to 40.4° by wrapping it on a cylindrical surface as compared to the FOV of 21.5° obtained by the array on a planer surface. We also characterized the liquid lenses of the system, observing a range of focus length from 20.2 mm to 9.2 mm as increased voltage was applied to each EWOD lens. A Shack–Hartmann wavefront sensor (SHWS) was used to measure the wavefront of the lens as it was actuated, and the aberrations of the lens were assessed by reporting the Zernike coefficients of the wavefronts.

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