Reflections – A Dynasil Blog

Neutral Density (ND) Filter

Buyer’s Guide to Neutral Density Filters

Neutral Density Filters, or ND Filters, are optical filters designed to reduce the intensity of all light passing through the...

Hydrophobic/Oleophobic Coating on a Mobile Phone

A Guide to Hydrophobic and Oleophobic Coatings

Ever notice that when a few droplets of water land on your smartphone’s screen, they bead up as if floating...

Thermal Imaging at an Airport

A Closer Look at EST Monitoring

Elevated Skin Temperature (EST) monitoring, is an extension of the field of thermography applied to measuring skin temperature. The premise...

Optical Aberration: Chromatic

Understanding Optical Aberrations

What is an Optical Aberration? Aberration: an unwelcome departure from the normal, usual, or expected. Most images are imperfect. Image...

Q&A with Michelle Henderson, Coatings Expert

The Dynasil family of companies delivers an extensive range of photonics-based products and capabilities. But Dynasil itself is a product...

Sunglasses Featuring UV Blocker

UV Blocking Filters

Ultraviolet (UV) radiation is comprised of the part of the electromagnetic spectrum with wavelengths in the range of 100-400 nm....

Wire Grid Polarizers

Buyer’s Guide to Wire Grid Polarizers

Wire grid polarizers, as the name suggests, are polarizing elements that use arrays of fine metal wires to selectively transmit...

How anti-reflective coatings work

A Primer on Anti-Reflective Coatings

Introduction to Anti-Reflective Coatings An AR coating is an optical coating applied to a surface to reduce the amount of...

Bragg MIrror

Dielectric or Bragg Mirror and Its Applications

Mirrors and the Reflection of Light Mirrors play an important role in many aspects of our life. From simple things...

Coating Chalcogenides with Confidence

What are Chalcogenides? Chalcogenides are glasses containing one or more chalcogens (sulfur, selenium and tellurium). Chalcogenide glasses are becoming a preferred...

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