Double-Convex Lenses (BK7 or Fused Silica)

Optics >>> Lens >> Double-Convex Lenses

Double-Convex lenses are suitable for applications in which the conjugates are on the opposite side of the lenses and the ratio of the distance is less than 5:1, e.g. simple image relay components. 

BK7 Double-Convex Lenses

Main Specifications  
Material BK7 grade A optical glass
Design Wavelength 546.1nm
Design Index 1.5183 0.00005
Diameter Tolerance -0.0, -0.15mm
Paraxial Focal Length 2%
Centration < 3 arc minutes
Clear Aperture >85%
Surface Figure l/4@632.8nm
Surface Quality 60-40 scratch and dig
Bevel 0.25 mm x 45

Fused Silica Double-Convex Lenses

Main Specifications  
Material UV graded Fused Silica
Design Wavelength 546.1nm
Design Index 1.46008 0.00005
Diameter Tolerance -0.0, -0.15mm
Paraxial Focal Length 2%
Centration <3 arc minutes
Clear Aperture >85%
Surface Figure l/4@632.8nm
Surface Quality 60-40 scratch and dig
Bevel 0.25 mm x 45

 Standard Product Information


 
Part No.
f (mm)
f (mm)
R1 (mm)
tc(mm)
te(mm)
fb(mm)
DCX-1201
20.0
12.7
20.01
4.0
2.0
18.6
DCX-1202
25.0
12.7
25.28
3.6
2.0
23.8
DCX-1203
30.0
12.7
30.52
3.3
2.0
28.9
DCX-1204
40.0
12.7
40.95
3.0
2.0
39.0
DCX-1301
25.4
25.4
24.712
9.0
2.0
22.2
DCX-1302
50.0
25.4
50.92
5.2
2.0
48.3
DCX-1303
75.0
25.4
77.04
4.1
2.0
73.6
DCX-1304
100.0
25.4
103.05
3.6
2.0
98.8

Note: special material and size are available upon request.

Ordering Information:

Part No, - Coating Wavelength
For Example, DCX-1201 - 808 nm

   

  

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