scholarly journals From Astronomy to the clinic: Adaptive Optics based visual simulators

2020 ◽  
Vol 51 (3) ◽  
pp. 17-19
Author(s):  
Maria Viñas
Keyword(s):  
Adaptive Optics ◽  
Visual Performance ◽  
Deformable Mirrors ◽  
Spatial Light Modulators ◽  
Ocular Surgery ◽  
Light Modulators ◽  
Multifocal Lens

Adaptive optics based visual simulators with deformable mirrors, spatial light modulators or optotunable lenses are increasingly used to simulate vision through different complex multifocal lens designs. Their final utility in the clinic relies on their capability to predict visual performance after an ocular surgery.

scholarly journals Intelligent Optical Systems Using Adaptive Optics

2012 ◽  
Vol 82 ◽  
pp. 64-74
Author(s):  
Natalie Clark
Keyword(s):  
Adaptive Optics ◽  
Situational Awareness ◽  
Focal Length ◽  
Optical Design ◽  
Optical Systems ◽  
Deformable Mirrors ◽  
Spatial Light Modulators ◽  
Active Components ◽  
Light Modulators ◽  
Commercial Applications

Until recently, the phrase adaptive optics generally conjured images of large deformable mirrors being integrated into telescopes to compensate for atmospheric turbulence. However, the development of smaller, cheaper devices has sparked interest for other aerospace and commercial applications. Variable focal length lenses, liquid crystal spatial light modulators, tunable filters, phase compensators, polarization compensation, and deformable mirrors are becoming increasingly useful for other imaging applications included guidance navigation and control (GNC), coronagraphs, foveated imaging, situational awareness, autonomous rendezvous and docking, non-mechanical zoom, phase diversity, and enhanced multi-spectral imaging. Active components presented allow flexibility in the optical design, increasing performance. In addition, the intelligent optical systems presented offer advantages in size and weight and radiation tolerance.

Practical issues for the use of liquid crystal spatial light modulators in adaptive optics

1998 ◽  
Vol 148 (4-6) ◽  
pp. 323-330 ◽  
Author(s):  
G.T Bold ◽  
T.H Barnes ◽  
J Gourlay ◽  
R.M Sharples ◽  
T.G Haskell
Keyword(s):  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Light Modulators ◽  
Light Modulators

scholarly journals Microscope-Cockpit: Python-based bespoke microscopy for bio-medical science

2021 ◽  
Vol 6 ◽  
pp. 76
Author(s):  
Mick A. Phillips ◽  
David Miguel Susano Pinto ◽  
Nicholas Hall ◽  
Julio Mateos-Langerak ◽  
Richard M. Parton ◽  
...  
Keyword(s):  
Open Source ◽  
Adaptive Optics ◽  
High Performance ◽  
Medical Science ◽  
Machine Learning Algorithms ◽  
Spatial Light Modulators ◽  
Structured Illumination ◽  
Light Modulators ◽  
Wide Range ◽  
User Friendly

We have developed “Microscope-Cockpit” (Cockpit), a highly adaptable open source user-friendly Python-based Graphical User Interface (GUI) environment for precision control of both simple and elaborate bespoke microscope systems. The user environment allows next-generation near instantaneous navigation of the entire slide landscape for efficient selection of specimens of interest and automated acquisition without the use of eyepieces. Cockpit uses “Python-Microscope” (Microscope) for high-performance coordinated control of a wide range of hardware devices using open source software. Microscope also controls complex hardware devices such as deformable mirrors for aberration correction and spatial light modulators for structured illumination via abstracted device models. We demonstrate the advantages of the Cockpit platform using several bespoke microscopes, including a simple widefield system and a complex system with adaptive optics and structured illumination. A key strength of Cockpit is its use of Python, which means that any microscope built with Cockpit is ready for future customisation by simply adding new libraries, for example machine learning algorithms to enable automated microscopy decision making while imaging.

The Moving Liquid Mirror (MLM) Spatial Light Modulator: Simulation and Measurement of the Optical Performance

2000 ◽  
Author(s):  
Alexander Wolter ◽  
Detlef Kunze ◽  
Wolfgang Doleschal ◽  
Hubert Lakner ◽  
Günter Zimmer
Keyword(s):  
Adaptive Optics ◽  
Cmos Technology ◽  
Optical Signal ◽  
Spatial Light Modulators ◽  
Direct Writing ◽  
Writing Systems ◽  
Electrode Structure ◽  
Light Modulator ◽  
Light Modulators ◽  
Moving Liquid

Abstract Spatial light modulators (SLM) are electro-optical devices employed as optical pattern generators in applications like projection displays, direct-writing systems for photolithographic patterning, adaptive optics or optical signal processing. Here we report on the “moving liquid mirror” (MLM) as a new micromechanical actuator technology based on a deformable oil film on an aluminum mirror with electrode structure. The actuator is suitable for integration on a silicon backplane as CMOS-addressing circuit. Thus production in standard CMOS-technology is possible. A theoretical analysis of the device behavior is given, and the results of simulations are presented. Measurements on passive devices show good agreement with the simulations. Finally, active MLM-devices have been fabricated. Images can be programmed into the devices and observed under a microscope (figure 1).

Novel spatial light modulators for active and adaptive optics

2000 ◽  
Author(s):  
David C. Dayton ◽  
Sergio R. Restaino ◽  
John D. Gonglewski
Keyword(s):  
Adaptive Optics ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Active And Adaptive Optics

Liquid-crystal spatial light modulators for adaptive optics and image processing

1996 ◽  
Author(s):  
Nataliya L. Ivanova ◽  
Arkady P. Onokhov ◽  
Aleksander N. Chaika ◽  
V. V. Resnichenko ◽  
Dmitry N. Yeskov ◽  
...  
Keyword(s):  
Image Processing ◽  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Light Modulators ◽  
Light Modulators

scholarly journals Applications of Spatial Light Modulators in Raman Spectroscopy

2019 ◽  
Vol 73 (7) ◽  
pp. 727-746 ◽  
Author(s):  
Faris Sinjab ◽  
Zhiyu Liao ◽  
Ioan Notingher
Keyword(s):  
Raman Spectroscopy ◽  
Adaptive Optics ◽  
Laser Excitation ◽  
Spatial Light Modulators ◽  
Digital Micromirror Device ◽  
Spectral Filtering ◽  
Fast Detection ◽  
Light Modulators ◽  
Sampling Volume ◽  
Selection Of

Advances in consumer display screen technologies have historically been adapted by researchers across the fields of optics as they can be used as electronically controlled spatial light modulators (SLMs) for a variety of uses. The performance characteristics of such SLM devices based on liquid crystal (LC) and digital micromirror device (DMD) technologies, in particular, has developed to the point where they are compatible with increasingly sensitive instrumental applications, for example, Raman spectroscopy. Spatial light modulators provide additional flexibility, from modulation of the laser excitation (including multiple laser foci patterns), manipulation of microscopic samples (optical trapping), or selection of sampling volume (adaptive optics or spatially offset Raman spectroscopy), to modulation in the spectral domain for high-resolution spectral filtering or multiplexed/compressive fast detection. Here, we introduce the benefits of different SLM devices as a part of Raman instrumentation and provide a variety of recent example applications which have benefited from their incorporation into a Raman system.

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