G313216322 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-100mm 450-700nm

This is a G313216322 double-concave lens, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transparency range. The lens has a double-concave geometry, with radii of curvature of -104.41 mm and 104.41 mm for the first and second surfaces, respectively. The effective focal length (EFL) of this lens is -100 mm, making it a powerful tool for imaging applications that require a negative focal length.

The lens is designed to operate in the visible spectrum, specifically at a wavelength of 588 nm. It comes with a broadband anti-reflection coating, Qio Bbar Arb2visnbk7, on both the front and back surfaces, which enhances its transmission capabilities and reduces unwanted reflections. The coating is specifically designed for use with N-BK7 glass in the visible spectrum.

This lens is sourced from Qioptiq Photonics, a leading vendor in the field of precision optics. The item data indicates that the lens is in stock and available for immediate purchase. The vendor's website provides further details and specifications, which can be accessed via the provided weblink.