Products -> Lens -> Standard Spherical Lens -> Double-Convex
 
Standard Spherical Lens -> Double-Concave
 
BK7 Double-Concave Lens
 
Material BK7
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Design Wavelength 546.1nm
Surface Quality 60/40 scratch and dig
Flatness λ/4@632.8nm
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
Coating None
 
Part No.
f(mm)
ø(mm)
R1=R2
(mm)
Tc(mm)
Te(mm)
fb(mm)
Unit Price
DCV0801
35.0
25.4
36.62
2.0
6.5
-35.7
$8.0
DCV0802
50.0
25.4
52.17
2.0
5.1
-50.7
$7.0
DCV0803
75.0
25.4
78.09
2.0
4.1
-75.7
$7.0
DCV0804
100.0
25.4
104.00
2.0
3.6
-100.7
$7.0
DCV0805
125.0
25.4
129.92
2.0
3.2
-125.7
$7.0
DCV0806
150.0
25.4
155.83
2.0
3.0
-150.7
$7.0
DCV0807
200.0
25.4
207.66
2.0
2.8
-200.7
$7.0
DCV0808
250.0
25.4
259.49
2.0
2.6
-250.7
$7.0
DCV0809
300.0
25.4
311.32
2.0
2.5
-300.7
$7.0
DCV0810
500.0
25.4
518.64
2.0
2.3
-500.7
$7.0
DCV0811
1000.0
25.4
1036.94
2.0
2.2
-1000.7
$7.0
 
 
Fused Silica Double-Concave Lens
 
 
Material UV grade fused silica
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Design Wavelength 546.1nm
Surface Quality 60/40 scratch and dig
Flatness λ/4@632.8nm
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
Coating None
 
Part No.
f(mm)
ø(mm)
R1=R2
(mm)
Tc(mm)
Te(mm)
fb(mm)
Unit Price
DCV1801
35.0
25.4
32.52
2.0
7.2
-35.7
$40.0
DCV1802
50.0
25.4
46.32
2.0
5.6
-50.7
$30.0
DCV1803
75.0
25.4
69.33
2.0
4.3
-75.7
$30.0
DCV1804
100.0
25.4
92.33
2.0
3.8
-100.7
$30.0
DCV1805
125.0
25.4
115.40
2.0
3.4
-125.7
$30.0
DCV1806
150.0
25.4
138.34
2.0
3.2
-150.7
$30.0
DCV1807
200.0
25.4
184.35
2.0
2.9
-200.7
$30.0
DCV1808
250.0
25.4
230.36
2.0
2.7
-250.7
$30.0
DCV1809
300.0
25.4
276.36
2.0
2.6
-300.7
$30.0
DCV1810
500.0
25.4
460.40
2.0
2.4
-500.7
$30.0
DCV1811
1000.0
25.4
920.48
2.0
2.2
-1000.7
$30.0
 
Note: Union Optic can provide other lenses per the customer's request,  for detail informaion, please contact us.