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How to select the most ideal coating?

    As all we know, there are four coating system for a mirror. How to select the most ideal one? Here're our opinions for as bellow:

1. For visible full-reflevtion, we strongly recommend dielectric coating. Especially a single wavelength in the range of 400-700nm, we could offer an excellent reflectivity up to 99.5%.

2. Aluminum coating is also widely used for 400-700nm visible spectrum, but it delivers a low relflection, around 85%. However if you are about to operate a wide range without strictly reflection, Aluminum is a cost-efficient choice.

3. Silver coating has better reflectivity than Aluminum, could make a reflectivity more than 95% at a wide range, even at SWIR.

4. As for Gold coating, it's more expensive. Also, offers higher reflectivity than other matal coating. It's widely used in high power laser system which needs less energy loss.

    We can also deposit UV enhanced Aluminum coating and Copper coating according to your special demands.

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