How to Select a Polarizing Filter for Machine Vision
Selecting a polarizing filter for machine vision glare reduction starts with one question that has nothing to do with the filter itself: is the glare…
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Lenses & Optical Components
Optical industry news, various optical talks from the latest industry fields, optical leading technologies, and the latest developments in optical research are all gathered here. Here you can learn about the latest industry updates, news, etc.
Optical Filter Orientation: Coated Side Toward Source
For a symmetric all-dielectric filter on a non-absorbing substrate, used near normal incidence at low optical power, flipping the part does not change the transmitted…
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What Is a Dichroic Mirror? Working Principle, Uses & Selection
A dichroic mirror is a wavelength-selective optical component designed to reflect one spectral region while transmitting another. Unlike a conventional mirror that is intended to…
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Polarizing vs Non-Polarizing Beamsplitter
A beamsplitter is often described simply as an optical component that divides one incident beam into transmitted and reflected paths. In an actual optical system,…
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Ultra Narrow Bandpass Filter Applications: Engineering Guide
An ultra narrow bandpass filter is used when an optical system needs to transmit a tightly defined wavelength region while strongly attenuating light outside that…
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V-Coat vs Broadband AR Coating: Specs and Trade-Offs
Use a V-coat when the optic sees one laser line and you need the last fraction of a percent of transmission. Use a broadband anti-reflection…
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OD4 vs OD6 Optical Filter Blocking: Key Differences
The practical difference between OD4 vs OD6 optical filter blocking is a factor of 100 in transmitted unwanted light. OD4 permits a maximum transmittance of…
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1550nm Narrow Bandpass Filter for LiDAR
1550 nm Narrow Bandpass Filter for LiDAR: How to Specify the Receiver Filter A 1550 nm narrow bandpass filter for LiDAR (Light Detection and Ranging)…
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Thermal Lensing in Germanium Optics
Thermal lensing in germanium optics is the change in optical power that occurs when absorbed radiation heats a germanium element non-uniformly, creating a radial temperature…
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Laser Line Filter vs Laser Cleanup Filter
In most catalogs, "laser line filter" and "laser cleanup filter" describe the same physical object: a narrow dielectric bandpass filter centered on a laser wavelength.…
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How Stokes Shift Affects Fluorescence Filter Selection
The Stokes shift of a fluorophore is the spectral gap you have to work with, and that gap sets every meaningful parameter in the filter…
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How to Select a Dichroic Mirror for Fluorescence Systems
If your search starts with “dichroic mirror for fluorescence manufacturer,” the most important question is not simply who can supply the optic. The engineering task…
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