Optical glass 350 nm to 2200nm N-BK7 Ball and Condenser Lenses

The spherical lens is used to improve the signal coupling between the optical fiber, emitter and detector, and improve the signal quality. It can also be applied to endoscope, bar code scanning, the pre-processed material of aspheric lens, sensors, etc.
The spherical lens has a short focal length, which can greatly reduce the distance from the spherical lens to the optical fiber.

N-BK7 features high transmission from 350nm to 2.2μm with a low coefficient of thermal expansion, making it ideal for the most demanding ball lens applications in the ultraviolet, visible, and near infrared spectra. Ball lenses are commonly used for improving signal coupling between fibers, emitters, and detectors, as well as objective lenses in endoscopy and bar-code scanning applications. Half-ball lenses simplify handling and integration. 

Map Optics provides uncoated spherical lenses based on N-BK7 optical glass and uv fused quartz.