Lee, "Fabrication of a focal length variable microlens array based on a nematic liquid crystal," Opt. Mater., vol. 21, pp. 643-646, 2002.Y.Choi,J.Park,J.Kimet al.Fabrication of a focal length variable microlens array based on a nematic liquid crystal. Optical Materials . 2003...
A method to measure the focal length of Microlens-Array(MLA) is proposed based on Hartmann-Shack wavefront measurement principle and the Focus Determining Technique by Image Definition(FDTID).The composition of the measurement system is introduced and the measuring principle is given.Firstly,the plan...
Fabrication of microlens array with graduated sags using UV proximity printing method A graduated microlens array is presented in this paper. The proposed device has the same aperture microlens with a gradually increasing sag in the substrat... H Yang,CK Chao,TH Lin,... - 《Microsystem Technolog...
In this paper, we demonstrate the fabrication of refractive silicon microlens array with a large focal number and almost perfect spherical lens shape. Through a modified thermal reflow, photoresist microlens array of a large focal number is fabricated, which is then transferred into the silicon subst...
Here, a microlens array is placed before the focal plane array, each one producing a focus on the detector plane. The location of that focus indicates the local wavefront curvature. One requires some dozens of detector pixels, for example, for a single pixel of the generated wavefront image...
we obtained multi-focal plane image stacks by multiple exposures with varying CMOS sensor depth (note that focal stack data collected by CMOS sensors with multiple exposures would be comparable to that obtained by the proposed transparent array with a single exposure, as long as the scene being ...
The invention includes a method for making a microlens array mold capable of forming the array described above. The method includes forming an array of receptacles having varying depths and applying a shrinkable, hardenable liquid over the array, thereby forming a meniscus in each receptacle. As th...
A cost-effective FPA includes a plurality of detectors per pixel, wherein radiation is directed by a microlens array into respective focal regions that are covered by the union of the detectors' collections regions within each pixel and any defective detectors are de-selected in the ROIC. The ...
microlens arrayfocal planetwice-image methodTwice-image method based on the Newton's formula, is used to measure the focal plane of the microlens array. The focal plane of the microlens array is measured by using the transmitted optical path, magnification, and high definition of the CCD camera...
Zhu,XC 等.Defocus measuring the focal length of microlens-array by grating prismatic interference.《Proceedings of SPIE-The International Society for Optical Engineering》.2010,第7849卷78491D-1~78491D-8.Defocus measuring the focal length ofmicrolens-array by grating prismatic interference. Xianchang ...