scholarly journals Wide-Field-of-View Near-Eye Display with Dual-Channel Waveguide

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 557
Author(s):  
Chao Ping Chen ◽  
Yuepeng Cui ◽  
Yuning Ye ◽  
Feiyang Yin ◽  
Huiwu Shao ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Channel Waveguide ◽  
Field Of View ◽  
Orthogonal Polarization ◽  
Wide Field ◽  
Exit Pupil ◽  
Dual Channel ◽  
Wide Field Of View ◽  
Polarization Division Multiplexing

We propose a wide-field-of-view near-eye display featuring a dual-channel waveguide with cholesteric liquid crystal gratings. Our dual-channel waveguide is capable of splitting the field of view through the orthogonal polarization division multiplexing. To explain its mechanism, a diagram of k-domain, which factors into both the waveguide size and the number of pupils, is depicted. Our results demonstrate that the diagonal field of view reaches up to 80°, eye relief is 10 mm, exit pupil is 4 × 3 mm2, and uniformity is 79%.

Space-qualified liquid-crystal variable retarders for wide-field-of-view coronagraphs

2011 ◽  
Author(s):  
N. Uribe-Patarroyo ◽  
A. Alvarez-Herrero ◽  
P. García Parejo ◽  
J. Vargas ◽  
R. L. Heredero ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View

Wide field-of-view imaging system using a liquid crystal spatial light modulator

2005 ◽  
Author(s):  
George Curatu ◽  
David V. Wick ◽  
Don M. Payne ◽  
Ty Martinez ◽  
Jamie Harriman ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Light Modulator ◽  
Wide Field Of View

Wide-field-of-view foveated imaging system using a liquid crystal spatial light modulator

2002 ◽  
Author(s):  
David V. Wick ◽  
Ty Martinez ◽  
Jeffrey T. Baker ◽  
Don M. Payne ◽  
Bradley R. Stone ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Light Modulator ◽  
Foveated Imaging ◽  
Wide Field Of View

scholarly journals Optical Design of a Dual Channel Microscope

2020 ◽  
pp. short49-1-short49-7
Author(s):  
Anastasiya Kozhina ◽  
Evgeniia Soshnicova ◽  
Alla Uvarova
Keyword(s):  
Time Synchronization ◽  
Optical Design ◽  
Optical Microscope ◽  
The Other ◽  
Field Of View ◽  
Wide Field ◽  
Optical Scheme ◽  
Dual Channel ◽  
Wide Field Of View ◽  
Relevant Task

The article presents a new scheme of an optical microscope. The proposed scheme contains two channels: one works with a wide field of view, the other forms a high-resolution image. The simultaneous fulfillment of these conditions significantly increases the information capacity of the system. The proposed scheme overcomes the limitations imposed by the Lagrange invariant. In addition, the presented work solves the relevant task of optical instrumentation: using one device,it becomes possible to simultaneously obtain an image of an object in two scales, one of which gives a detailed image of microstructures, and the other shows the state of the area around the part of the object being studied in detail. This time synchronization is especially important for studying biological objects. The design features of the optical scheme make it possible to abandon the refocusing of the objective, which is necessary in biological microscopes when the magnification is changed. Thus, the proposed system solves not only scientific and technical tasks, but also improves the ergonomics of work in microscopy.

STM studies of crystal growth

1991 ◽  
Vol 49 ◽  
pp. 374-375
Author(s):  
M. G. Lagally
Keyword(s):  
Crystal Growth ◽  
Molecular Beam ◽  
Chemical Vapor ◽  
Sputter Deposition ◽  
Field Of View ◽  
Scanning Tunneling ◽  
Wide Field ◽  
Tunneling Microscopy ◽  
Wide Field Of View ◽  
The One

It has been recognized since the earliest days of crystal growth that kinetic processes of all Kinds control the nature of the growth. As the technology of crystal growth has become ever more refined, with the advent of such atomistic processes as molecular beam epitaxy, chemical vapor deposition, sputter deposition, and plasma enhanced techniques for the creation of “crystals” as little as one or a few atomic layers thick, multilayer structures, and novel materials combinations, the need to understand the mechanisms controlling the growth process is becoming more critical. Unfortunately, available techniques have not lent themselves well to obtaining a truly microscopic picture of such processes. Because of its atomic resolution on the one hand, and the achievable wide field of view on the other (of the order of micrometers) scanning tunneling microscopy (STM) gives us this opportunity. In this talk, we briefly review the types of growth kinetics measurements that can be made using STM. The use of STM for studies of kinetics is one of the more recent applications of what is itself still a very young field.

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