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Oberflächenspiegel für Projektionen 3 & 5 mm Deutlich verbesserte Reflexion Die auf Aluminiumbasis hergestellten Glas-Spiegel bieten einen Mehrwert für ...

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Fixed ratio beam expanders FEX series increase laser beam diameter. Fixed ratio beam expander FEX diversity cover the UV, visible, NIR spectral ranges.

2024715 — Vision inspection systems play a crucial role in ensuring quality assurance and compliance within manufacturing processes. By employing advanced ...

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Buy onn. Gaming Mechanical Keyboard with Blue Switches, Adjustable 16.8M LED Lighting, 104 Keys, Black at Walmart.com.

Zebra Crossing Beacon Lights: These lights are designed to draw attention to zebra crossings, alerting drivers to the presence of pedestrians and promoting ...

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relative aperture, the measure of the light-gathering power of an optical system. It is expressed in different ways according to the instrument involved. The relative aperture for a microscope is called the numerical aperture (NA) and is equal to the sine of half the angle subtended by the aperture at an object point times the index of refraction of the medium between the object and the objective lens. For binoculars, telescopes, and photographic lenses in which the object may be distant, the relative aperture is taken as the ratio of focal length of the objective to the diameter of the entrance pupil. The relative aperture of a camera lens is sometimes expressed as a simple ratio—e.g., 1:4.5—or more commonly as its f-number, f/4.5. In either case, a lens of 180-millimetre focal length set at this relative aperture would have a pupil diameter (effectively, the lens diaphragm opening) of 40 mm.

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The depth of focus in a microscope is defined as the distance between the objective lens and the sample plane. The depth of focus varies from person to person ...

2019114 — Y es que un alto porcentaje de autónomos y micropymes no tienen su negocio digitalizado. Como mucho podemos encontrar casos en los que todo lo ...