This product is a Plano-Concave Spherical Lens, offered by CeNing Optics with a 6 mm diameter. The lens is made of N-BK7, a popular optical glass type from Schott, known for its excellent optical properties and wide transparency range.
The lens features a center thickness of 2 mm and an effective focal length (EFL) of -15 mm, indicating its concave design. The radius of curvature for the concave surface is -7.79 mm. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties or protect it from environmental factors.
The lens is designed to operate at a wavelength of 546.1 nm, which is in the middle of the visible light spectrum. This makes it suitable for applications that require high-quality imaging or light manipulation in the visible range.
According to the vendor's information, this item is currently in stock, and you can find more details about it on the vendor's website.