Customized round biconcave lenses double concave cylindrical lens optical glass

Product Overview

Description

Customized round biconcave lenses double concave cylindrical lens optical glass 

Product name	Double Concave lens
Material	K9, BK7, ZK2,ZK3,ZK6, CDGM, Corning Fused Silica,  JGS1,JGS2, Corning 7980,Schott, Ohara
Shape	plano convex lens,plano concave lens,double convex lens,double concave lens,meniscus lenses
Dimension tolerance	-0.05\\0.1mm
Center thickness tolerance	+-0.03/0.1mm
Aperture	1-5
Partial aperture	0.2-0.5
Surface finish	60/40,40/20
Clear aperture	>90%
Coating	nti-reflection coating

 

 

Principle:

The top of the object is also used as two straight lines: one is parallel to the main optical axis and is deflected into a divergent light after passing through the biconcave lens, returning this refracted light to the main focus in the opposite direction; the other passes through the optical center point of the lens, these two lines The straight lines intersect at one point, this is the image of the object.

 

Application:

The main applications of biconcave lenses: optical imaging, astronomical observation, scientific research, military industry and other precision instruments.

 

 

 

Customized round biconcave lenses double concave cylindrical lens optical glass