Focal Length of a Lens - how do you find the focal length

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Plano-convex lenses are easy to fabricate, making them a cost-effective choice in applications that don't require small spot sizes, or in high f-number optical systems where meniscus or aspheric lenses don't deliver a performance advantage.

Mini-spectrometers are compact and low cost spectrometers (polychromators). We offer over 20 different types of mini-spectrometers covering the spectral ...

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Extend the lifetime of optics that require frequent cleaning from exposure to metal spatter and debris in drilling, cutting, and marking applications.

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Transmit infrared light and laser beams with minimal loss and wavefront distortion using these precision, anti-reflection coated, plane parallel windows.

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Align CO₂ and other infrared laser beam delivery systems with these dichroic beamsplitters that transmit IR and reflect HeNe or visible wavelength diode-laser beams.

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Process materials with increased efficiency using the diffraction-limited focused spots achievable with these precision aspheric lenses.

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Obtain polarized laser output or achieve lossless transmission of p-polarized light using these plane parallel windows, designed for operation at Brewster's angle.

Oct 27, 2023 — The size of the beam spot is fundamental if you want to calculate the intensity of a pulsed laser, since it equals the ratio between the power ...

Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter ... Thread, Basica, Minor ... 8-32, 3B, 0.1640, 0.1300, 0.1389, 0.1640. 8-36, 2B ...

Choose a standard lens or specify exactly the component you require. Our extensive inventory of test plates and tooling minimizes fabrication costs for custom items.

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The Coherent HyperRapid NXT 266 is the world's first industrial-grade deep UV, picosecond laser, offering extraordinary precision manufacturing as small as 5 µm.

Replace the focusing lens in your high-power CO₂ laser cutting or materials processing system with this optic that features ultra-low absorption for maximum lifetime.

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Focal length refers to the distance between a lens's optical center and the camera's image sensor. This measurement critically dictates the angle of view ...

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Protect valuable scan lenses and focusing optics in industrial laser systems from debris, backspatter, and other workplace hazards with these plane parallel windows.

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Perform heat treating, welding, cutting, and other tasks where spot size or image quality is not critical with these economical optics.

Transform the diameter of high-power CO₂ laser beams with these Galilean telescopes (no internal focus) beam expanders, suitable for a wide range of applications.

Build ultracompact, infrared, camera optical systems for automotive, medical, and life sciences applications with these precision microlenses.

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Learn about the vertically integrated capabilities for material growth, fabrication, coating, and assembly, and rigorous QA at Coherent. Discover how these ensure the performance and reliability of our optics and minimize supply chain risks and uncertainties.