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It is possible to reduce the beam divergence by optical means (lenses) to a certain extent. However, this means that the beam diameter at aperture increases. The larger the beam at aperture, the larger scanner mirrors are necessary, which leads to higher inertia and thus to reduced maximum possible scan speed. That's why it is always necessary to find a good balance between beam divergence and beam diameter:

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Various industrial projects such as illuminated components. · Diffusion of cold and warm white LED light. · Backlit displays, indicators and switches. · Interior ...

Divergence describes the expansion of a laser beam over a long distance. The value is given in mrad (milliradiant), a unit to specify angles.

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Optical coherence tomography (OCT) is a non-invasive imaging evaluation. OCT uses light waves to take cross-section images of your retina. Together with OCT ...

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Reflectors use a large concave spherical mirror (primary mirror or objective mirror) to gather light and bring it to focus on a small, optically flat mirror ...

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Thanks to the Laserworld divergence calculator this is no problem. You will find this tool on following page: https://www.laserworld.com/en/laserworld-toolbox/divergence-calculator.htmlJust specify the laser power, your desired distance, the divergence of the show laser and the beam diameter after optics. All values can be found in the manual of your laser projector.

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The optical rail is a rail for arranging light sources and lenses in a straight line when conducting optical experiments.

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The higher the divergence, the bigger the widening of the laser beam over a long distance. Thus, the laser beam becomes less visible and sharp graphics can hardly be displayed over long distances. This means that the smalles possible divergence makes the best show laser. The laser beams stay thin and crisp even over the longest distances.