This is a 14OAP-3-76.2-30-GM Off-Axis Parabolic Mirror, a high-quality optical component sourced from Standa. The mirror has a base shape of a circle with a diameter of 76.2 mm, which is also its clear aperture (CA). The off-axis angle (α) is 0.5236 radians or approximately 30°.
The mirror's effective focal length (EFL) is 81.67 mm, making it suitable for a variety of optical applications. The material of the mirror is n-bk7 schott, a type of borosilicate glass known for its excellent optical properties.
The mirror is coated with protected gold on the front surface, denoted as "sta prot gold". This coating enhances the mirror's reflectivity in the visible light spectrum, particularly at the wavelength of 588 nm.
The mirror is in stock and available for immediate purchase. For more information, please refer to the vendor's website provided in the weblinks section.