Most suitable where the conjugates are on opposite sides of the lenses and the ratio of diameter to distances is less than 1:5.
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
Bevel
0.25X45 degree
Coating
None
China Optics Net
Bi Convex Lenses
Product No.
F(mm)
Dia.(mm)
R1=R2(mm)
Tc(mm)
Te(mm)
Fb(mm)
Add
100017
8.0
6.0
7.70
3.2
2.0
6.9
100018
30.0
12.7
30.52
3.3
2.0
28.9
100019
40.0
22.4
40.57
5.1
1.9
38.3
100020
75.0
25.4
77.04
4.1
2.0
73.6
100021
700
38
725.02
3.5
3.0
698.8
100022
400.0
50.0
413.87
4.5
3.0
398.5
100023
500
80
517.678
6.1
2.0
498.0
100024
250.0
100
257.0
13.7
3.9
245.4
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