Optik & Photonik 2/2018 April

Optik & Photonik 2/2018 (Source: Wiley-VCH)

Cover Picture

Cover Picture: Optik & Photonik 2/2018

Optical 3D measuring system for realtime quality control using GOBO projection at 36Hz 3D rate, to be seen at Fraunhofer Vision Alliance-co-organized special show Contactless Measuring Technology at Control 2018. (Source: Fraunhofer IOF)

Editorial

Contents

News

Products

Research & Technology

Organizations & Initiatives

Market Report

The Photonics Market in France

The last exhaustive study on Photonics in France was done in the first half of 2014. It resulted in a manufacturing revenue of 10.8 billion euros, equalling 13.5 percent of European photonics industry, as Germany counted for 35 percent.

  • Benoît d’Humières (Tematys)
  • Pages 18-19
Machine Vision in France

Throughout Europe, the national machine vision markets are far from being homogenous and show their own characteristics depending on factors such as the economic structure in the given country, the domestic customer industries for machine vision technology and the research intensity on machine vision and computer vision. In its latest market report “Machine Vision in France” the European Machine Vision Association…

  • Andreas Breyer (EMVA)
  • Pages  20-21

Technology Report

Integration of Photonic Systems
  • Ana González, Jose Pozo (EPIC)
  • Pages 22-24

Measurement Technology

A Guide to Industrial Metrologists

Traditional metrology consumes a considerable amount of time and effort. Because traditional equipment is not located on the production floor, workers must move components to the measuring room to carry out inspections.

  • Jérôme‐Alexandre Lavoie (Creaform)
  • Pages 25-27

Laser Systems

Virtual Prototyping of High‐Power Fiber Lasers

Lasers used in industrial environment do not only have to be powerful, reliable and economic, but are also expected to work properly and within the specified range over hundreds of thousands of hours. Regarding a short time‐to‐market, the time‐consuming lifetime testing of early prototypes and components is a major drawback in the development of new products. In this article we demonstrate a way to reduce the testing effort…

  • Jens Schüttler (Coherent | Rofin)
  • Pages 28-31

Microscopy

Four‐Color Laser Engine for Efficient Confocal Microscopy

Frequency‐doubled diode laser technology (FDDL) enables direct modulation of 561 nm lasers with unprecedented speeds. It also reaches an ultimate high on/off contrast with zero photons in the off state, which is favorable for laser scanning microscopes and multicolor microscopy techniques.

  • Tim Paasch‐Colberg, Konstantin Birngruber (Toptica Photonics)
  • Pages 32-34

Optical Components

New Process Chain for the Production of Complex Freeforms

Freeform optics enable completely new solutions in optical design for many different optical applications. Complex optical systems usually need a variety of multiple classic spherical surfaces to fulfill their function. The usage of a freeform surface instead makes it possible to replace some of these spherical surfaces by only one freeform element. Therefore, it is possible to build optical systems that are more compact…

  • Jens Bliedtner, Sebastian Henkel, Anne‐Marie Schwager, Kerstin Götze, Martin Gerhardt, Michael Fuhr (EAH Jena & Günter Effgen)
  • Pages 35-39
Balancing Cost and Specifications

When specifying an optic, even something as simple as a single spherical lens, it is very important to have a clear understanding of what each specification is and how it could affect your system. At high precision, there is usually a cost‐benefit trade‐off and the goal should be to try to optimize that. This article will look at the key specifications in a spherical lens system and explore the cost‐benefit considerations…

  • Daniel Adams (Edmund Optics)
  • Pages 40-43
Monolithic Micro‐Optics for Single Mode Diode Bars

Diode lasers are characterized by their compact design, high efficiency, long maintenance intervals and a long service life. However, their brightness and beam quality are not yet sufficient for some applications – for example in material processing or medical technology. Thanks to their large number of single emitters, single‐mode diode bars have the potential to generate high levels of output power, but they are not yet…

  • Stefan Hambücker (Ingeneric)
  • Pages 44-47
Unseen Possibilities of F‐Theta Lenses

F‐theta lenses are important components of machines for laser material processing. They are the part which enables cutting steel by focusing the laser beam. For even machining surfaces, a couple of lenses are necessary, because the curved image plane of a single lens would create a high unwanted field curvature. The field curvature decreases the homogeneity of the spot size depending on its position which is necessary for…

  • Cornelia Ozga (Sill Optics)
  • Pages 48-51

Light Sources

More Powerful Than Ever

Industrial use of UV radiation requires powerful artificial sources. More than 15 years ago, the introduction of UV LED technology presented an alternative solution to high‐pressure mercury‐vapor lamps, which had been the main source for almost a century. With their many obvious advantages, they soon led to new applications – most of them in the low‐power sector. Innovations in chip technology now allow for a new generation…

  • Olga Stroh‐Vasenev (Laser Components)
  • Pages 52-55

Biophotonics

Multiphoton Tomography for in Vivo Skin Age Determination

Nothing represents our age better than our most outer layer: the skin. But the age of the skin may differ from the person’s chronological age due to a complex interplay of external and internal factors. A non‐invasive method to determine the skin age on a microscopic level in vivo is clinical multiphoton tomography which allows for direct non‐invasive imaging of biological tissue with subcellular resolution. By directly…

  • Andreas Schindele, Hans Georg Breunig, Karsten König (Jenlab)
  • Pages 56-59

Calendar

Meetings

Service

Buyers’ Guide
  • Page 64

Index & Masthead

Company Index
  • Page 65

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