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The article reports on the research conducted at the Institut für Technische Optik in Stuttgart, Germany which shows that tomographic imaging can reveal the refractive-index destribution of a photonic-crystal (PC) fiber. Researchers used a diffraction-tomography algorithm which is based on the Fourier-diffraction theorem where it allows refraction and small diffraction effects in reconstructing the profile for PC fibers. The details of the study are also presented.

The 34th Control - International Trade Fair for Quality Assurance - will take place from May 3rd to 6th, 2022 in Stuttgart. The fair is an important forum for personal contact and business exchange in the metrology industry. Due to increasing automation and digitalization, as well as the need for quality control, QA solutions are currently particularly important. The fair offers solutions and systems for measurement and testing technology, material testing, vision technology, and sensor technology. The fair is eagerly anticipated and has a high percentage of foreign exhibitors. [Extracted from the article]

The article offers information on Vision 2008, a trade fair for machine vision and identification technology, to be held from November 4-6, 2008 at the Stuttgart Trade Fair Centre in Stuttgart, Germany. The event will include halls four and six of the centre, providing 25% more exhibition area. Exhibitors will present components for cameras, optics and frame grabbers. All companies, universities and institutes who have developed new machine vision solutions are eligible to participate.

The article provides information on Vision 2007, the International Trade Fair for Machine Vision, to be held at the New Stuttgart Trade Fair Center in Stuttgart, Germany on November 6-8, 2007. The 20th anniversary of the trade show is expected to attract 230 exhibitors showing their products in two exhibition halls. About three-fifths of exhibitors are component manufacturers, while the products to be shown include cameras, frame grabbers, optical and illumination solutions and processors.