Coating Micro Optics

June 18, 2013

As consumer electronics continue to shrink in size and increase in functionality so too will the optics used to power and enable the displays and optoelectronics utilized in these devices. With that being said the need for custom precision thin-film coated micro optics has never been greater. The addition of a thin-film coating to a micro optic could make the difference between an onboard camera application being success or failure due to the coating’s ability to increase light transmission and decrease reflectance both indoors and out. Micro optics are typically created from injection molded polymers. Currently Zeonex E48R is widely…

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What is a “Broadband” antireflective coating? What is a “Narrowband” antireflective coating?

June 18, 2013

Many times our industrial optics customers approach us and ask for either broad or narrowband antireflective coatings based on their own unique application. Fundamentally broadband and narrowband antireflective coatings serve different purposes. However there are instances where they can be substituted for each other based on the flexibility of the application and the criticality of the light transmission. Broadband antireflective coatings drastically enhance the efficient light transmission of any optical substrate by reducing surface reflections over a wide wavelength rang. Broadband antireflective coatings also help to enhance image contrast in display applications. A broad wavelength range would be defined as…

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How to Clean an Anti-Reflective Coated Substrate

June 18, 2013

One of the most commonly asked questions we get here at North American Coating Laboratories is “how do we clean an anti-reflective coated part once we receive it?” This question is especially important in the high-end precision optics realm, as small particulate on top of a coated surface can disrupt numerous optical systems that operate behind the coated substrate. The reason anti-reflective coatings are difficult to clean is due to their “peak and valley” microstructure that is a catalyst for destructive interference of light. In general terms an anti-reflective coating is a series of dielectric layers with varying refractive indices…

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ITO Coating on Plastic

June 18, 2013

As the consumer electronic market evolves manufacturers and industrial designers are looking for new and better ways to increase the performance of their devices while also making them thinner, lighter, and less expensive. One of the fastest growing approaches in the optical display industry to this trend is addressing display substrates with polymers coated with transparent conductive material or Indium Tin Oxide. Indium Tin Oxide is a transparent conductive oxide that is deposited on to clear display substrates in order to increase their conductivity. Applying a clear conductive coating to display substrates is mandatory in numerous applications. Among the most…

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