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Edmund Optics®

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An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

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Multiphoton Microscopy

Multiphoton microscopy is ideal for capturing high-resolution 3D images with reduced photobleaching and phototoxicity compared to confocal microscopy.

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Confocal Microscopy

Confocal microscopy provides high resolution, elimination of out-of-focus glare due to spatial filtering, and reduction of light-induced damage to the sample.

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What happens when a filter is tilted?

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When should I use an IR cut filter and when should I use heat absorbing glass?

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What is an ND Filter?

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Can I place ND filters back-to-back and increase optical density?

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What is the difference between using an absorptive ND filter and a reflective ND filter?

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How do I select the right filter for my application?

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What happens when an optical filter is tilted?

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Cold Mirror

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Continuously Variable Apodizing Filter

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Dichroic Filter

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Fluorescent Filter

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Heat Absorbing Glass

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Hot Mirror

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Neutral Density Filter (ND)

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Shortpass Filter

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Stopband

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WRATTEN Filter

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Selecting Color Filter Glass for Life Science Applications

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Understanding Neutral Density Filters

Neutral Density (ND) Filters are designed to evenly reduce transmission. For more information on specifications and products, read more at Edmund Optics.

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Optical Filter Orientation

Unsure which side of your filter should face the light source? Learn how to determine the filter orientation of your TECHSPEC filter at Edmund Optics.

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Ultra-Thin Longpass and Shortpass Filters

Innovative ultra-thin filters provide flexibility, scratch resistance, and durability comparable to most hard oxide coatings. Learn more at Edmund Optics.

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How do I select a filter for my application?

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What type of material should I look for in a filter?

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Which type of colored filter is best for my imaging application?

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How should I orient my reflective ND or interference filter?

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How do I determine which side of my filter is coated?

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How do I clean my filters?

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