This is a 14OAP-3-76.2-60-AL 76.2 mm Dia. Aluminum 60° Off-Axis Parabolic Mirror, a high-quality optical component sourced from Standa. The mirror is designed with a base shape of a circle, and its geometry includes a diameter of 76.2 mm, a parabolic focal length (pfl) of 76.2 mm, and an effective focal length (EFL) of 101.6 mm. The off-axis angle (alpha) is 1.0471975511965976 radians or approximately 60 degrees.
The mirror is made from n-bk7 Schott, a popular optical glass known for its excellent optical properties. It is designed to work optimally with a wavelength of 588 nm. The front surface of the mirror is coated with sta prot al, a protected aluminum coating that enhances its reflectivity and durability.
This off-axis parabolic mirror is currently in stock and available for immediate use. For more information, you can refer to the vendor's website at http://www.standaphotonics.com/off-axis-mirrors/off-axis-parabolic-mirrors.php.