A new technology platform
to lift the limit on how and where
thin-film optical filters can be used
Everix's manufacturing platform is based on thermal drawing of a scaled-up multi-layer block (a preform) down to a substrate-free ultra-thin optical filter. This process is similar to how optical fibers are thermally drawn from a fiber preform and demonstrates scaling economics significantly better than the traditional coating-based methods of manufacturing optical filters. While we currently use this technology for small- to medium-size optical filters,
With Innovation at the core of Everix, we hold a total of 36 patents (16 issued) globally on its innovative processes, equipment, products and devices, and key applications.
Why Everix Technology?
Everix' thermally drawn ultra-thin optical filters are best suited for applications where compact form factor, non-traditional geometries, angular shift reduction, light weight, and economic scaling are critical.
Compact & Complex Forms
for optical devices with limited space, or for the most innovative optical designs benefitting from non-traditional filter geometries.
for optical devices where every micron of gap between a source of light and a sensor means reduced signal or increased noise.
Conformal to Free-Form Optics
for retrofitting simple or complex optical filter designs to any non-flat optical surface that challenges traditional coating methods.
for devices that can benefit from reduced substrate weight or a replacement of filter-coated glass components with plastic optics.
Compensated Angular Shift
for optical devices that can benefit from an interference filter in a curved geometry to compensate for (and even completely eliminate) the undesired spectral shift of thin-film interference filters.
Application & Technical Notes
The unique product features offered by Everix' thermally-drawn optical filters bring to life new application areas, filter application modalities, and technical benefits beyond traditional possibilities. You can find below the application and technical notes that our team has prepared for you and your team.
Educational Videos and Webinars
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Frequently Asked Questions
A new tool in the optics toolbox sparks numerous new questions and ideas!
Please contact us to brainstorm if you don't find the answer to your questions here.
What are Everix filters made of?Our current commercial products are made of PMMA (acrylic) polymers, the same polymer that is often used for solar panel covers. We also have other materials in development.
Are Everix filters sold in rolls too?While our technology is well-suited for future roll-to-roll production, we currently only sell filters that are diced in our facilities up to 50-mm dimensions.
What is the best way to cut Everix filters?While Everix filters can be cut with scissors or die punches, we recommend laser cutting to maintain sub-layer integrity.
How can I mount Everix filters?Most Everix filters with thicknesses >0.2 mm are rigid enough to be mounted in regular lens or filter mounts. Everix filters can also be adhered to other surfaces such as an optical window, lens or sensors using an acrylic-based optical adhesive such as Norland products.
How much can I bend Everix filters?Maximum bending curvature depends on the number of layers and total thickness of a particular filter design. Please contact our team to explore your particular needs. We can design your filter to meet your optical and mechanical requirements as closely as possible.
How can I clean Everix filters?Because our filters are made of PMMA acrylic, any chemicals that are a solvent for PMMA can damage the filter surface. We recommend soapy water with de-ionized water rinse followed by drying with a cleanroom grade lint-free cloth.
What is the maximum temperature Everix filters can be stored at?Our in-house storage temperature tests have shown no measurable permanent change in the filter performance at up to 90 degrees Celsius for up to 10 days.