BK7 Di-Concave spherical Lens
 
Diameter Tolerance:
+/-0.1mm
Thickness Tolerance:
+0.0/-0.1mm
Design Wavelength:
546.1nm
Centration:
<3 arc minutes
Clear Aperture:
>90% central area
Paraxial Focal Length Tolerance:
±2%
Surface Quality:
60/40 for standard
Surface Figure:
lambda/4@632.8nm or better
Chamfer:
<0.35mm x 45deg

 

 

 
Part No.
f(mm)
ø(mm)
R1=R2
( mm )
Tc(mm)
Te(mm)
fb(mm)
DCV0801
35.0
25.4
36.62
2.0
6.5
-35.7
DCV0802
50.0
25.4
52.17
2.0
5.1
-50.7
DCV0803
75.0
25.4
78.09
2.0
4.1
-75.7
DCV0804
100.0
25.4
104.00
2.0
3.6
-100.7
DCV0805
125.0
25.4
129.92
2.0
3.2
-125.7
DCV0806
150.0
25.4
155.83
2.0
3.0
-150.7
DCV0807
200.0
25.4
207.66
2.0
2.8
-200.7
DCV0808
250.0
25.4
259.49
2.0
2.6
-250.7
DCV0809
300.0
25.4
311.32
2.0
2.5
-300.7
DCV0810
500.0
25.4
518.64
2.0
2.3
-500.7
DCV0811
1000.0
25.4
1036.94
2.0
2.2
-1000.7

 

 

Fused Silica Di-Concave spherical Lens
 
Diameter Tolerance:
+/-0.1mm
Thickness Tolerance:
+0.0/-0.1mm
Design Wavelength:
546.1nm
Centration:
<3 arc minutes
Clear Aperture:
>90% central area
Paraxial Focal Length Tolerance:
±2%
Surface Quality:
60/40 for standard
Surface Figure:
lambda/4@632.8nm or better
Chamfer:
<0.35mm x 45deg

 

 

Part No.
f(mm)
ø(mm)
R1=R2
( mm )
Tc(mm)
Te(mm)
fb(mm)
DCV1801
35.0
25.4
32.52
2.0
7.2
-35.7
DCV1802
50.0
25.4
46.32
2.0
5.6
-50.7
DCV1803
75.0
25.4
69.33
2.0
4.3
-75.7
DCV1804
100.0
25.4
92.33
2.0
3.8
-100.7
DCV1805
125.0
25.4
115.40
2.0
3.4
-125.7
DCV1806
150.0
25.4
138.34
2.0
3.2
-150.7
DCV1807
200.0
25.4
184.35
2.0
2.9
-200.7
DCV1808
250.0
25.4
230.36
2.0
2.7
-250.7
DCV1809
300.0
25.4
276.36
2.0
2.6
-300.7
DCV1810
500.0
25.4
460.40
2.0
2.4
-500.7
DCV1811
1000.0
25.4
920.48
2.0
2.2
-1000.7

 

 

Note: AT optical can provide custom made lens. Please contact us for details.