69-340 12.0mm Dia. x 42.0mm FL; Plano-Convex Lens Laser V-Coat 405nm

The 69-340 is a Plano-Convex spherical lens, a type of optical lens with one side flat and the other side curved outwards. This lens, sourced from Edmund Optics, boasts a 12.0mm diameter and a focal length of 42.0mm, making it suitable for a wide range of applications.

The lens is crafted from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion. This material ensures that the lens delivers clear, high-quality images with minimal chromatic aberration.

The 69-340 features a laser-optimized V-coat coating on both the front and back surfaces. This coating, designed for a central wavelength of 405nm, enhances the lens's performance by reducing surface reflections and improving transmission. The coating also provides excellent environmental resistance, ensuring the lens maintains its performance even in challenging conditions.

The lens's geometry includes a thickness of 1.85mm at the edge and 2.7mm at the center. The inner and outer radii are 0mm, and the back focal length is 40.22mm. These specifications contribute to the lens's overall optical performance and should be carefully considered when selecting a lens for your application.