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Metallized Mirrors |
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Aluminum has a high reflectance over the entire visible and near infrared spectrum. It is simple to deposit as a thin film, making it the ideal choice for most non-critical applications. The aluminum is overcoated with a single layer of MgF2 to make it considerably more durable than bare aluminum.
There are three degrees of flatness: l/4, l/10 and l/20. The l/4 and l/10 mirrors are deposited on BK7 substrates but the l/20 mirrors use synthetic quartz resulting in significantly better thermal stability.
A broad selection of sizes is offered as standard. Other sizes can be supplied on request. Please call with your inquiry.
Mirrors up to 1 inch in diameter have a ground rear surface but all other mirrors are polished on the rear face.
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| Key Features |
 High reflectance over entire visible and NIR spectrum |
| Aluminum overcoated with MgF2 for high durability |
| Ideal for non-critical applications |
| Available with l/4, l/10, and l/20 surface flatness |
| Synthetic quartz and Zerodur available for high thermal stability |
| Standard diameters from 5.0 to 152.4mm |
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| Specifications & Tolerances |
| Surface flatness: l /4, l/10,l /20 |
Diameter: +0, -0.2mm |
| Surface quality: 40-20 |
Parallelism: <3arcmin |
| Thickness: +0.1mm |
Clear aperture: >90% diameter |
| Bevel: 0.2mmx45° typical |
| Laser damage threshold: 0.4J/cm2 for 532nm @10ns pulse (measured) |
| Durability: to MIl-C-675 |
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| Reflectance: R>88% (350-2000nm) |
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| Metallized Mirrors Round |
All measurements in nm |
Part Number |
Flatness |
Diameter, D
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Thickness, T |
Thickness |
Material |
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(Inches) |
(nm)
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(nm) |
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 /4 |
0.2 |
5 |
3 |
BK7 |
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/4 |
0.39 |
10 |
3 |
BK7 |
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/4 |
0.5 |
12.7 |
5 |
BK7 |
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/4 |
0.79 |
20 |
5 |
BK7 |
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/4 |
0.98 |
25 |
5 |
BK7 |
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/4 |
1 |
25.4 |
5 |
BK7 |
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/4 |
1.18 |
30 |
5 |
BK7 |
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/4 |
1.57 |
40 |
6 |
BK7 |
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/4 |
1.97 |
50 |
8 |
BK7 |
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/4 |
2 |
50.8 |
8 |
BK7 |
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/4 |
3 |
76.2 |
12 |
BK7 |
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/4 |
4 |
101.6 |
15 |
BK7 |
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/4 |
6 |
152.4 |
20 |
BK7 |
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/10 |
0.2 |
5 |
3 |
BK7 |
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/10 |
0.39 |
10 |
3 |
BK7 |
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/10 |
0.5 |
12.7 |
5 |
BK7 |
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/10 |
0.59 |
15 |
5 |
BK7 |
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/10 |
0.79 |
20 |
5 |
BK7 |
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/10 |
0.98 |
20 |
5 |
BK7 |
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/10 |
1 |
25.4 |
5 |
BK7 |
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/10 |
1.18 |
30 |
5 |
BK7 |
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/10 |
1.57 |
40 |
6 |
BK7 |
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/10 |
2 |
50.8 |
8 |
BK7 |
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/10 |
3 |
76.2 |
12 |
BK7 |
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/10 |
4 |
101.6 |
17 |
Zerodur® |
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/10 |
6 |
152.4 |
25 |
Zerodur® |
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/10 |
0.5 |
12.7 |
6 |
SFS |
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/10 |
1 |
25.4 |
6 |
SFS |
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/10 |
2 |
50.8 |
10 |
SFS |
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| Metallized Mirrors, Square & Rectangular |
All measurements in mm |
Part Number |
Flatness |
Dimensions
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Thickness, T |
Material |
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(Inches) |
(mm)
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(mm) |
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a x b |
a x b |
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l/4 |
0.39 x 0.59 |
10.0 x 15.0 |
5 |
BK7 |
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l/4 |
0.50 x 0.50 |
12.7 x 12.7 |
3 |
BK7 |
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l/4 |
0.79 x 0.79 |
20.0 x 20.0 |
5 |
BK7 |
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l/4 |
0.98 x 0.98 |
25.0 x 25.0 |
5 |
BK7 |
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l/4 |
0.98 x 1.38 |
25.0 x 35.0 |
5 |
BK7 |
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l/4 |
1.18 x 1.18 |
30.0 x 30.0 |
5 |
BK7 |
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l/4 |
1.57 x 1.57 |
40.0 x 40.0 |
6 |
BK7 |
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l/4 |
1.57 x 1.97 |
40.0 x 50.0 |
8 |
BK7 |
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l/4 |
1.97 x 1.97 |
50.0 x 50.0 |
8 |
BK7 |
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l/4 |
3.94 x 3.94 |
100.0 x 100.0 |
15 |
BK7 |
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l/10 |
0.39 x 0.39 |
10.0 x 10.0 |
3 |
BK7 |
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l/10 |
0.39 x 0.59 |
10.0 x 15.0 |
5 |
BK7 |
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l/10 |
0.50 x 0.50 |
12.7 x 12.7 |
3 |
BK7 |
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l/10 |
0.59 x 0.59 |
15.0 x 15.0 |
3 |
BK7 |
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l/10 |
0.79 x 0.79 |
20.0 x 20.0 |
5 |
BK7 |
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l/10 |
0.98 x 0.98 |
25.0 x 25.0 |
5 |
BK7 |
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l/10 |
0.98 x 1.38 |
25.0 x 35.0 |
5 |
BK7 |
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l/10 |
1.18 x 1.18 |
30.0 x 30.0 |
5 |
BK7 |
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l/10 |
1.57 x 1.97 |
40.0 x 50.0 |
8 |
BK7 |
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l/10 |
1.97 x 1.97 |
50.0 x 50.0 |
8 |
BK7 |
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l/10 |
3.94 x 3.94 |
100.0 x 100.0 |
15 |
BK7 |
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l/20 |
0.98 x 0.98 |
25.0 x 25.0 |
6 |
Fused Silica |
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