Spherical lens elementJ10919 series

The J10919 series FAC lens is an optical lens that collimates light spreading from a semiconductor laser (LD) in the fast-axis direction. LD have a large divergence angle in the fast-axis direction, so the output light cannot be efficiently used unless collimated. The FAC lens collimates light spreading from a LD into a narrow beam with a radiation angle of several milliradians (mrad) or less so that the diverging light can be efficiently utilized.

Features
Aspheric micro-cylindrical lens

Highly efficient utilization of light from LD bar

Small variations in characteristics allow mass production

Minimized smile and side lobes due to high-precision fabricating technology

Geometry/curvature : spherical
Material : BK7
Optical characteristics : visible, aspherical
Applications : collimator, FAC
Wavelength : 808 nm