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„Variogon" is the brand name for a vario-lens made by Schneider-Kreuznach. But what is a vario-lens? It is a lens that has no fixed focal length and can be changed by the user with certain limitations. This is accomplished without having to bring the image of the subject into focus again and again each time the focal length is changed. A lens of this kind is also known as a zoom lens.
Learn moreTo minimize disruptive reflection losses, optical components such as lenses and eyeglasses are now equipped with highly effective antireflective coatings. However, the measurement methods used in quality control using scanning spectrophotometers are often non-destructive in practice and can hardly be used at arbitrary locations on a curved surface. A special measurement head design in conjunction with a diode array spectrometer provides a solution.
Learn moreExplore aspects of how light interacts with different surfaces. We offer insights into the phenomena that occur when light strikes materials, such as fluorescence, reflection, remission, absorption, and polarization. Learn about the importance of light to our perception and imaging.
Learn moreThe text presents an overview of electromagnetic radiation, covering its various forms from radio waves to gamma rays and how they follow consistent laws despite differences in perception. It discusses the nature of light, color perception, and the practical applications of understanding color temperature. Overall, it emphasizes the significance of these concepts across different fields, from technology to human perception.
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