This is a 6 mm diameter Plano-Concave lens, manufactured by Qioptiq Photonics, a renowned provider of precision optics. The lens is made of N-BK7, a popular glass type known for its excellent optical properties, and is mounted for ease of use.
The lens features a negative focal length (EFL) of -10mm, making it suitable for a variety of applications where light needs to be diverged or focused over a short distance. The lens is designed to work within the wavelength range of 725-1050nm, which covers a significant portion of the near-infrared spectrum.
The lens's geometry is spherical, with a concave surface (R1=-5.012) and a flat surface. The center thickness is 1mm. The lens's coating, Qio Bbar Arb2nirnbk7, is applied on both the front and back surfaces to enhance its durability and performance in the specified wavelength range.
This lens is a great choice for applications that require a high-quality, compact lens with a wide operational wavelength range. It is currently in stock and can be purchased directly from the Qioptiq Photonics website.