High-performance wide-angle macrofocus zoom lens for 35-mm cinematography

1998 ◽  
Author(s):  
Iain A. Neil ◽  
Ellis I. Betensky
Keyword(s):  
High Performance ◽  
Zoom Lens ◽  
Wide Angle

Automatic Distortion Correction of Endoscopic Images Captured With Wide-Angle Zoom Lens

2013 ◽  
Vol 60 (9) ◽  
pp. 2603-2613 ◽  
Author(s):  
Tung-Ying Lee ◽  
Tzu-Shan Chang ◽  
Chen-Hao Wei ◽  
Shang-Hong Lai ◽  
Kai-Che Liu ◽  
...  
Keyword(s):  
Distortion Correction ◽  
Zoom Lens ◽  
Wide Angle ◽  
Endoscopic Images

scholarly journals Inverse design and demonstration of high-performance wide-angle diffractive optical elements

2020 ◽  
Vol 28 (15) ◽  
pp. 22321 ◽  
Author(s):  
Dong Cheon Kim ◽  
Andreas Hermerschmidt ◽  
Pavel Dyachenko ◽  
Toralf Scharf
Keyword(s):  
High Performance ◽  
Inverse Design ◽  
Wide Angle ◽  
Diffractive Optical Elements ◽  
Optical Elements

Frequency-tunable wide-angle polarization selection with a graphene-based anisotropic epsilon-near-zero metamaterial

2021 ◽  
Author(s):  
Feng Wu ◽  
Dejun Liu ◽  
Xiaohu Wu ◽  
Hong-ju Li ◽  
Shuyuan Xiao
Keyword(s):  
Data Storage ◽  
High Performance ◽  
Liquid Crystal Display ◽  
Normal Incidence ◽  
Optical Data Storage ◽  
Optical Data ◽  
Angular Width ◽  
Wide Angle ◽  
Frequency Tunable ◽  
Epsilon Near Zero

Abstract In this paper, we achieve frequency-tunable wide-angle polarization selection based on an anisotropic epsilon-near-zero (AENZ) metamaterial mimicked by a subwavelength graphene/SiO2 multilayer. The physical mechanism of wide-angle polarization selection can be explained by the analysis of the iso-frequency curve (IFC). Under transverse electric polarization, only the incident lights which are close to normal incidence can transmit through the designed multilayer since the IFC of the AENZ metamaterial is an extremely small circle. However, under transverse magnetic polarization, all the incident lights can transmit through the designed multilayer since the IFC of the AENZ metamaterial is a flat ellipse. Therefore, polarization selection can work in a broad angular width. By changing the gate voltage applying to the graphene, the operating frequency of polarization selection can be flexibly tuned. The optimal operating angular width of high-performance polarization selection where the polarization selection ratio is larger than 102 reaches 54.9 degrees. This frequency-tunable wide-angle polarization selector would possess potential applications in liquid crystal display, read-write magneto-optical data storage, Q-switched lasing, and chiral molecule detection.

scholarly journals High Performance Wide Angle DBR Design for Optoelectronic Devices

2021 ◽  
Vol 13 (1) ◽  
pp. 1-6
Author(s):  
Ting Zhi ◽  
Tao Tao ◽  
Bin Liu ◽  
Yu Yan ◽  
Zili Xie ◽  
...  
Keyword(s):  
High Performance ◽  
Optoelectronic Devices ◽  
Wide Angle
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