What does grin lens mean?

1.

Introduction of grin lens of self-focusing lens

1.1 Hobbite Holbit technology of self-focusing lens:

Self-focusing lens, also known as gradient refractive index lens, refers to a

cylindrical optical lens whose refractive index distribution gradually changes along the radial direction. It has focusing and imaging functions.

1.2 Features of self-focusing lens:

When light propagates in air and encounters different media, its

propagation direction will be changed due to the different refractive indexes of the media. The traditional lens imaging is to control the curvature of the lens surface and make the light converge to a point by using the difference of optical path < P >.

The difference between a self-focusing lens and an ordinary lens is that the self-focusing lens material can refract the

light transmitted along the axial direction, and gradually reduce the distribution of refractive index along the radial direction, so that the outgoing light rays are smoothly and continuously converged to one point.