Negative lens used where one of the conjugates is nearly collimated.
Specifications
Material
BK7 grade A optical glass
Design Wavelength
546.1nm
Design Index
1.5183+/-0.0005
Diameter Tolerance
+0.0/-0.15mm
Paraxial Focal Length
+/-2%
Centration
3 arc minutes
Clear Aperture
>80%
Surface Figure
1/4 wave @632.8nm
Surface Quality
60-40 scratch and dig
Coating
None
Bevel
0.25X45 degree
China Optics Net
Plano Concave Lenses
Product No.
F(mm)
Dia.(mm)
R(mm)
Tc(mm)
Te(mm)
Fb(mm)
Add
100025
-10.0
5.0
5.187
2.0
2.5
-11.3
100026
-10.0
6.0
5.18
2.0
2.9
-11.3
100027
-25.0
12.7
12.96
2.0
3.7
-26.3
100028
-75
15.0
38.87
2.0
2.7
-76.3
100029
-40
21.0
20.73
2.0
4.7
-41.3
100030
-100
22.4
51.83
2.0
3.2
-101.3
100031
-25.0
25
12.968
2.0
10.9
-26.3
100032
-175
25.4
90.70
2.0
2.8
176.3
100033
-80
30.0
41.46
2.0
4.8
-81.3
100034
-700
38.0
362.81
3.0
3.5
-702.0
100035
-75.0
50
38.904
2.0
11.8
-77.0
If you are still unable to find the product that you are looking for, please contact our customer service or send email to: sales@chinaopticsnet.com . We'll try to assist and get back to you as soon as possible.