1. What is Biconcave lens?

Double Concave lenses(biconcave lens) are manufactured with two concave surfaces to provide a negative focal length. The lens is also called a negative or diverging lens.

2.What is biconcave lens used for?

These lenses are normally used in applications that require to expand light beams or to increase focal lengths. Such as Beam Expanders, Projection lenses, viewers, Medical Ophthalmic Detection... and so on.

3. What can UNI Optics do?

UNI Optics as a developing and responsible optical component & assembly manufacturers from China, produces high quality Biconvex lenses out of many variations of optical glass, fused silica, crystal and Infrared materials, and with the aid of the cutting-edge thin film technology.

Coatings such as Broadband AR or V-AR can be applied to these spherical lenses to provide added performance.

Specification:

  


Material:     Optical glass/Fused Silica
Design wavelength:    546.1nm
Diameter tolerance:    +0/-0.05mm
Focal tolerance:    +/-2%
Surface quality :    40-20 S/D 
Centration:    1 arcmin 
Surface flatness:     N=3 △N=0.5 
Clear aperture:    90%
Bevel:     Protective
Coating    Optional
Single layer MgF2
Multiple layers BBAR coating
Designed for 0° Angle of Incidence