λ/4 Wave Glass First Surface Mirror
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λ/4 Wave Flatness
When this glass is manufactured it is selected from standard float glass cuts to find those with excellent flatness without any additional polishing.
Applications for a glass first surface mirror require a true reflection with no ghosting effect, also known as front surface mirrors.
The enhanced aluminum mirror coating allows for a high reflection percentage over a larger nm range. See the wavechart for more detail.
We can cut and ship any size smaller than 32″ x 50″ and can ship across the globe! There is no minimum order to check out online.
Custom optics are sometimes advertised as not only possessing high accuracy, but also as inexpensive; as if both were simultaneously achievable. In the world of optics, you get what you pay for. λ/4 wave first surface mirror glass offers a superior quality compared to other first surface mirrors on the market. λ/4 flatness is achieved by polishing float glass down to a flat surface, then coating with aluminum and the protective overcoat. Typically, what most of our competitors offer is simply on float glass, which is 4-6λ per inch. To the naked eye, the two mirrors look the same, but the quality of the λ/4 is immediately noticeable under magnification. The production of a high-quality optical component is an exacting process, requiring a high level of skill, quality equipment, and close attention to detail.