λ/4 Wave Glass First Surface Mirror

λ/4 flat first surface mirror (front surface mirror) with enhanced aluminum coating for scientific and engineering applications. Superior to regular first surface mirrors when used under magnification.

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.

λ/4 Wave Glass Front Surface Mirror