Rod Lens

Spherical lens is an important optical element, which is mainly made of optical glass and other materials. It is used for the coupling between optical fibers, between laser and optical fiber and between optical fiber and detector, or for the collimation of optical fiber beam in thin film filtered dense wavelength division multiplexer.
Spherical lens is also called glass bead. It is a solid or hollow glass bead with a diameter of several microns to tens of microns. Its application fields include chemical industry, military industry, aerospace, transportation, petroleum, light industry, medical treatment and other departments. It has the characteristics of good surface finish, good light reflection, directional reflection, high impact strength, chemical stability, light bulk weight and so on.

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