The 63-608 is a high-quality double-convex lens, sourced from the renowned optical component manufacturer, Edmund Optics. This lens boasts a 15mm diameter and a focal length of 25mm, making it suitable for a wide range of applications that require precise optical control.
The lens is constructed from Schott's n-BK7 glass, a material well-known for its excellent optical properties, including a high Abbe number and low dispersion. This makes the lens an ideal choice for applications that require high image quality and minimal chromatic aberration.
The 63-608 lens features a standard anti-reflective coating on both the front and back surfaces. This coating, designated as 'edm vis-0 std curve', is specifically designed for the visible spectrum (425-675nm) and provides a broadband anti-reflective performance. The coating significantly reduces surface reflections, thereby enhancing the overall transmission and improving the contrast and resolution of the optical system.
The lens geometry is characterized by its double-convex shape, with radii of curvature of 25.23mm for the front surface and -25.23mm for the back surface. This shape results in a back focal length of 23.82mm and an effective focal length of 25mm. The lens has a center thickness of 3.5mm and an edge thickness of 1.22mm, providing a robust and durable design.