This is a Plano-Concave lens with a diameter of 12.7 mm, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens is made of N-BK7, a popular glass type known for its excellent optical properties, especially in the visible spectrum.
The lens features a negative focal length (EFL) of -50mm, indicating its concave shape. The center thickness of the lens is 1.5mm. The inner and outer radii are both zero, suggesting a simple, straightforward design.
The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, enhancing the lens's performance in a variety of applications.
The lens is designed for use at a single wavelength of 588nm. It is spherical in shape, a common choice for its simplicity and versatility.
The lens is currently in stock and available for purchase through the Qioptiq Photonics website. For more information, please refer to the provided weblink.