14OAP-4-76.2-90-AL 101.6 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=152.4mm Protected Aluminum

This is a 101.6 mm diameter Off-Axis Parabolic Mirror, designed and manufactured by Standa. The mirror is made of n-bk7 schott material, a high-quality glass commonly used in optical applications due to its excellent homogeneity and low optical dispersion.

The mirror features a 76.2 mm off-axis length (pfl), which is the distance from the mirror's edge to the center of curvature. The effective focal length (EFL) is 152.4 mm, indicating that this mirror will focus incoming light at a point 152.4 mm away from the mirror's surface. The alpha angle, which is the angle between the mirror's optical axis and the line connecting the mirror's center to the point of incidence, is 1.5707963267948966 radians or approximately 90 degrees.

The mirror is coated with protected aluminum (sta prot al) on the front surface. This coating provides high reflectivity in the visible spectrum, making it suitable for a wide range of applications. The coating is also protected, ensuring durability and longevity.

This mirror is available for purchase directly from Standa's website, and the link provided indicates that it is currently in stock. With its high-quality materials, precise geometry, and robust construction, this Off-Axis Parabolic Mirror is an excellent choice for various optical applications.