Anti-Reflection Coating
Description
Anti-reflection coatings reduce first surface reflection losses, improve contrast and boost the transmission through your optical surface. Choose from a typical design below or ECI will design and deposit a custom anti-reflection (AR) coating for your specific application. If you are not sure how to specify your coating, our design team will work with you to identify the optimum design for your system.
Anti-Reflection Coating
Specifications |
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|---|---|
| Coating Layers: | Multi-layer |
| Angle Of Incidence (AOI): | Not Specified |
| Wavelength Range: | 400-2000nm |
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Frequently Asked Questions
AR coatings, or anti-reflection coatings, are layers deposited onto optical surfaces to reduce specular reflectivity. They create destructive interference with respect to the reflected light, allowing maximum light transmission without compromising image quality.
AR coatings reduce first surface reflection losses, which in turn improves contrast. By minimizing the amount of light reflected off the surface, AR coatings enhance the clarity and visibility of the desired image.
Yes, ECI offers the option to design and deposit a custom anti-reflection coating for your specific application. If you're unsure how to specify your coating, their design team will work with you to identify the optimum design for your system.
ECI can typically achieve front surface reflection of less than 0.03% for a narrowband AR coating at near normal incidence. This means that the coating allows over 99.97% of the light to transmit through the optical surface.
The deposition temperature of a broadband AR coating can affect its performance. Coatings deposited at higher temperatures tend to yield lower average reflection over a particular bandwidth. This is because certain coating materials require elevated temperatures for durability, and the refractive indices of some materials decrease when deposited at lower temperatures.