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Alkor Technologies manufactures optical elements made of the different types of optical crystals. The largest dimensions of crystals are shown in the table below.

Type of Crystal Maximum dimensions,mm
Dia 140x50
Dia 140x50
Dia 400x50
Dia 220x40
Dia 220x40
Dia 50x20
Dia 100x40
Dia 100x15
Dia 150x20
Dia 160x50
Dia 200x25
Dia 300x100
Dia 500x200

All materials come through the inspection at our optical laboratory and are thoroughly tested for transmission, crystallographic orientation, birefringence and internal impurities.

Here you can find our specifications for the finished optics:

  Size tolerance,mm Parallelism Flatness

Surface quality

Standard
+0, -0.2
3 arc. min
1 lambda at 0.63mkm
60/40
Achievable
+0, -0.02
1 arc. min
Lambda/10 at 0.63 mkm
10/5