| Product name |
Spherical lens,optical lenses |
| Material | CaF2,quartz, fused silica, BK7, sapphire, CaF2, Zns and other crystal materials |
| Type |
plano-convex lens,double-convex lens,plano-concave lens,double-concave lens,meniscus lens,Ball lens,UV Fused Silica Lens,CaF2 lens,Zinc Selenide Lens,BaF2 lens,MgF2 lens,Germanium lens,Silicon lens,Cemented lens,Special-shaped lens/Vibration lens,Endoscopic lens |
| Focal length | ±5mm~1000mm±2% |
| Size | 6mm-300mm |
|
Thickness tolerance |
±0.2mm |
| Surface quality | 10/5~80/50 |
|
Beveling |
<0.2*4.5° |
|
Surface accuracy |
λ/10~λ/2 |
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.
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