Plano-Concave lenses have one flat and one inward curved surface. Plano-Concave lenses have a negative focal length and are used for image reduction or to spread light.
Common specification:
Typical Material | BK7,Fused Silica |
Typical Dimension(mm) | 3~130 |
Diameter Tolerance(mm) | +0.00/-0.02 |
Focus Length Tolerance(%) | +/-2% |
Centration(arc min) | <3 |
Irregularity (P-V) @ 632.8nm | 1/4 |
Power (P-V) @ 632.8nm | λ |
Surface Quality(scratch/dig) | 40-20 |
Bevel | Protective bevel as needed |
Coating | As request |
Plano-Concave lenses have one flat and one inward curved surface. Plano-Concave lenses have a negative focal length and are used for image reduction or to spread light.
Common specification:
Typical Material | BK7,Fused Silica |
Typical Dimension(mm) | 3~130 |
Diameter Tolerance(mm) | +0.00/-0.02 |
Focus Length Tolerance(%) | +/-2% |
Centration(arc min) | <3 |
Irregularity (P-V) @ 632.8nm | 1/4 |
Power (P-V) @ 632.8nm | λ |
Surface Quality(scratch/dig) | 40-20 |
Bevel | Protective bevel as needed |
Coating | As request |