This is a Plano-Concave lens, a type of spherical lens, sourced from Qioptiq Photonics. The lens has a diameter of 12.7 mm and a center thickness of 1.5 mm. The effective focal length (EFL) of this lens is -100mm, making it a negative lens. This particular lens is designed to work within the wavelength range of 725-1050nm, making it suitable for near-infrared applications.
The lens is made of N-BK7, a type of borosilicate glass, which is known for its excellent optical properties and durability. The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces, which enhances its performance in the specified wavelength range.
The lens is mounted, which means it is ready to be integrated into an optical system. The mounting process ensures the lens's position and alignment, reducing the time and effort required for assembly.
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