Published by De Gruyter

Volume 8 Issue 2 - Interdisciplinary Simulation / Guest Editors: Fabian Duerr and Alois Herkommer

Issue of Advanced Optical Technologies

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Contents
Journal Overview

Publicly Available April 6, 2019

Cover and Frontmatter

Page range: i-iv

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Views

April 3, 2019

Survey on teaching experiences in cinematography

Peter C. Slansky, Katrin Richthofer

Page range: 85-96

Abstract

In a recent survey, 125 cinematographers were asked to describe their teaching experiences. This article summarises their responses to eight question modules. The top three teaching topics are lighting design, artistic use of the lens and picture composition for film and television cameras. From all actual technological developments, digital colour grading is seen as having the greatest impact on teaching cinematography, as well as on cinematography itself. While almost all teachers use digital cameras for their daily work, about 40% still also use traditional film in their courses. Even in the digital age, the traditional film helps draw the students’ attention away from technical options towards precision and accuracy in the actual recording of scenes.

Community

Publicly Available March 27, 2019

News

Page range: 97-101

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Topical Issue: Interdisciplinary Simulation

Editorial

Publicly Available April 2, 2019

Why does interdisciplinary research matter?

Fabian Duerr, Alois Herkommer

Page range: 103-104

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Research Articles

March 27, 2019

The changing face of scientific practice – seeing things virtually

Ulrike Susanne Pompe-Alama

Page range: 105-110

Abstract

The purpose of this essay is to summarize and critically evaluate the epistemological and pragmatic questions with regard to computer simulations as a new technological-scientific format as put forth in current philosophical debates. Computer simulation practices are situated in the broader context of model-building practices and experimentation; the scope and limits of knowledge generated by computer simulations are considered.

March 9, 2019

Simulation and analysis of optical imaging systems including real freeform components

Johannes Stock, Matthias Beier, Johannes Hartung, Sebastian Merx, Herbert Gross

Page range: 111-117

Abstract

In recent years, the precision of the manufacturing process for optical surfaces has improved tremendously. As a result, freefrom surfaces have become more attractive options for imaging applications with increased accuracy requirements. However, with regards the integration into an optical system, performance is often limited due to surface imperfections, such as mid-spatial frequency errors and alignment errors. This demonstrates the need for a more holistic description of systems, including multiple freeform components, which enable performance predictions based on the system as a whole. In this work, a solution for such a simulation is presented and verified by a comparison with the experimental data. This procedure not only predicts system performance but also supports tolerancing and easier alignment.

February 23, 2019

Simulation of segmented mirrors with adaptive optics

Johannes Störkle, Luzia Hahn, Peter Eberhard

Page range: 119-127

Abstract

This work deals with the simulation-based investigation and control of optical systems that are mechanically influenced. Here, the focus is on the dynamic-optical modeling of vibration-sensitive, segmented mirror systems, which are used, for example, in large astronomic telescopes. Furthermore, an adaptive optical unit usually compensates for the optical aberrations due to atmospheric disturbances. In practice, these aberrations are detected and corrected within a few seconds using deformable mirrors. However, to further improve the performance of these optical systems, dynamic disturbances in the mechanics, i.e. small movements and deformations of the optical surfaces, must also be taken into account. For the investigation of such cases, multidisciplinary simulation methods are developed and presented.

April 2, 2019

Transient simulation of laser beam propagation through turbulent cutting gas flow

Frieder Reichenzer, Stefan Dörr, Alois Herkommer

Page range: 129-134

Abstract

For many laser machining applications, an assist gas is required. However, for applications with high pressure or temperature gradients, the density of the assist gas is not homogeneous. Thus, the laser propagation is influenced by the density properties within the turbulent gas. In this article, an overview and example results of the influence of a nozzle geometry on the light propagation in two dimensions are presented.

April 1, 2019

Interdisciplinary approach for simulation of starting points for optical and architectural design

Irina L. Livshits, Alexander S. Glebovskyi, Marina V. Protsuto, Svetlana L. Volkova

Page range: 135-144

Abstract

Modern science becomes more complex day after day. Besides, there appeared many unpredictable links between different subjects, which we never expected to be connected. This is called ‘interdisciplinary’ science. For example, just occasionally we found common points in the simulation of the starting input for optical and architectural design, and moreover, we discovered a lot of similar procedures in both of them. Basing on the analysis of these two fields of knowledge, as well as using optical expert and architectural expert evaluations, we propose an approach to build a heuristic algorithm for computer aided design in these two fields. Later, we expect that it grows into a set of expert systems under the roof of artificial intelligence. We see in the near future a prospective of using new technology in design–building information modeling, which could be expanded from architectural design to optical design, etc. Besides, this is our first experience in this field. We consider that it is possible to widen it further to other subjects. The main ideas of this approach are presented.

Review Article

March 23, 2019

Novel refractive LiDAR sensor based on a variable lens pair prism

Matthias Baier, Jan Sparbert, Cornelius Neumann

Page range: 145-153

Abstract

We present a new type of Light Detection And Ranging (LiDAR) sensor based on a variable lens pair prism. This system combines the principles of macro- and microscanners to exploit the advantages and eliminate most of the disadvantages of both system types. We describe the concept of this new LiDAR sensor and examine the system performance by simulation. Afterwards, we investigate the spot shape and beam profile with respect to the main system parameters such as the gap between lenses, the deflection angle, and the measurement distance. Furthermore, we present solutions to optimize the variable lens pair prism to achieve an ideal spot shape and beam profile in the entire field of view (FoV).

About this journal

Objective

Advanced Optical Technologies is a strictly peer-reviewed scientific journal. The major aim of Advanced Optical Technologies is to publish recent progress in the fields of optical design, optical engineering, and optical manufacturing. Advanced Optical Technologies has a main focus on applied research and addresses scientists as well as experts in industrial research and development.

Advanced Optical Technologies partners with the European Optical Society (EOS). All its 4.500+ members have free online access to the journal through their EOS member account.

Topics

Optical design
Lithography
Opto-mechanical engineering
Illumination and lighting technology
Precision fabrication
Image sensor devices
Optical materials (polymer based, inorganic, crystalline/amorphous)
Optical instruments in life science (biology, medicine, laboratories)
Optical metrology
Optics in aerospace/defense
Simulation, interdisciplinary
Optics for astronomy
Standards
Consumer optics
Optical coatings

Article formats
Tutorial, Review Article, Research Article, Letter, Short Communication, Views

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