This is a 12.7mm diameter ZnSe Aspheric Lens, catalog number 39-469, sourced from Edmund Optics. The lens is uncoated and features an effective focal length (EFL) of 6.35mm, making it suitable for a wide range of optical applications.
The lens is designed with a base shape of a circle and has a numerical aperture (NA) of 1, indicating a high light-gathering capability. The material ID is specified as znse marple-1964, which is a type of Zinc Selenide, a material known for its excellent transmission properties in the infrared region, specifically at a wavelength of 10600nm.
The geometry of the lens includes an inner radius of 0, an outer radius also of 0, a thickness at the edge of 1.89mm, and a thickness at the center of 4mm. The lens's front surface has a conic constant of -1.077873, with no coating applied.
The lens is available for purchase through the provided weblink, which is currently valid and indicates the product is in stock. This detailed description should provide a comprehensive understanding of the lens's specifications and capabilities, aiding users in their selection process.