Can CVI Melles Griot modify standard optics to custom sizes?
Back to FAQ Our optics manufacturing facility in Rochester, NY can offer this service to our commercial and OEM based customers. Our ability to modify includes edging diameters down and cutting to square or rectangular shapes. This includes lenses (both spherical and cylindrical), mirrors, and filters (excluding the interference filters). There are a few rules of thumb to follow when modifying standard pieces: The standard tolerance for modifications is 0.25 mm (0.01″). If a customer needs a tighter tolerance, it must be specified. A standard lens can be edged down to a diameter that is no less than twice the center thickness of the lens. For example, we smallest we could edge a 01 LPX0 84 (beginning diameter: 30 mm, center thickness: 8.4 mm) down to would be 17 mm. A lens that is larger than 97 mm in diameter cannot be edged down. A mirror can be modified, but the flatness cannot be maintained to the original specification because stress is induced when a piece is modified.