The 38-611-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 35.0mm, is designed for use in the visible light spectrum, specifically at a wavelength of 587.6nm. The lens features a front and back coating of EDM YAGBBAR 500-1100, which enhances its performance in the 500-1100nm range.
The lens has a base shape of Circular and a thickness at the edge of 1.7mm, with the center thickness measuring 8.0mm. The Effective Focal Length (EFL) is 35.0mm, and the Radius of Curvature (R1) is 27.47mm. The Back Focal Length (BFL) is 30.52mm, and both the Inner and Outer Radius are 0mm.
The lens is made from N-SF11 Schott, a high-index glass with excellent transmittance in the near-infrared and visible regions. This material is known for its high Abbe number, making it an ideal choice for achromatic applications.
The lens's coating, YAG-BBAR, is a broadband antireflection coating designed for high transmission in the 500-1100nm range. This coating reduces surface reflections and increases the lens's overall efficiency.