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Spherical Mirrors These mirrors are used for laser beam concentration and quality imaging. They can also be used to improve the light output from projection and illumination systems. All spherical mirrors have a focal length equal to half their radius of curvature. The front concave spherical section is polished on a BK7 substrate and then coated with aluminum and MgF2.

Standard sizes are 1 and 2 inch with a wide range of curvatures from 50mm to 4m. Other diameters, diameters greater than 100mm, and other radii of curvature are also available. Please call.

Key Features
Chromatic aberration free for concentrating, collecting, and
     imaging applications
Aluminum overcoated with MgF2 for high durability
Polished rear surface for easy mounting
Standard diameters from 25 to 100mm
Specifications & Tolerances
Spherical tolerance: /4 Diameter: +0, -0.2mm
Surface quality: 40-20 Clear aperture: >90% diameter
Radius of curvature: +2% Bevel: 0.2mmx45°typical
Thickness: +0.2mm Material: BK7
Durability: to MIL-C-675  
Reflectance: R>85% (350-1550nm)

  
Spherical Mirrors
Part Number
Radiusof Curvature, R
Diameter, D
Edge, Te
Center,TC

(mm)
(Inches)
(mm)
(mm)
(mm)
50
1
25.4
7
5.4
50
1.97
50
13
6.3
50
2
50.8
13
6.3
100
0.98
25
5
4.2
100
1
25.4
5
4.2
100
1.97
50
10
6.8
100
2
50.8
10
6.8
250
0.98
25
5
4.7
250
1
25.4
5
4.7
250
1.97
50
8
6.7
250
2
50.8
8
6.7
500
0.98
25
5
4.8
500
1
25.4
5
4.8
500
1.97
50
8
7.4
500
2
50.8
8
7.4
1000
0.98
25
5
4.9
1000
1
25.4
5
4.9
1000
1.97
50
8
7.7
1000
2
50.8
8
7.7
2000
0.98
25
5
5
2000
1.97
50
7.8
8
4000
0.98
25
5
5
4000
1.97
50
7.9
8