Spherical Concave Mirrors

The concave mirrors substrates are manufactured from either Duran 50 (α = 3*10-6/K) or Zerodur (α = 0 ± 0.15 *10-6/K). They are precision polished to surface accuracy per the following table.
The focal ratio (diameter to focal length) of the standard range of concave mirrors is between 1:3 and 1:10.
We have a large number of tools on hand for the different focal lengths so that most mirrors can be manufactured to suit customer's individual requirements. (Please note that there will be an additional charge for orders where tools are not available.)

Material Duranto top

Diameter Thickness Duran 50, λ/4
Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc.
  20 mm
  25 mm
  30 mm
  40 mm
  50 mm
  60 mm
  70 mm
  80 mm
100 mm
120 mm
150 mm
180 mm
200 mm
250 mm
300 mm
  4 mm
  4 mm
  5 mm
  6 mm
  8 mm
  8 mm
10 mm
10 mm
15 mm
15 mm
20 mm
20 mm
27 mm
33 mm
40 mm
SHD 4.020
SHD 4.025
SHD 4.030
SHD 4.040
SHD 4.050
SHD 4.060
SHD 4.070
SHD 4.080
SHD 4.100
SHD 4.120
SHD 4.150
SHD 4.180
SHD 4.200
SHD 4.250
SHD 4.300
€ 254
€ 268
€ 282
€ 301
€ 394
€ 432
€ 525
€ 591
€ 847
€ 1147
€ 1256
€ 1650
€ 2463
€ 4008
€ 5198
€ 245
€ 258
€ 271
€ 290
€ 380
€ 416
€ 505
€ 568
€ 815
€ 1102
€ 1206
€ 1584
€ 2365
€ 3848
€ 4991
€ 239
€ 253
€ 265
€ 284
€ 371
€ 407
€ 495
€ 557
€ 799
€ 1079
€ 1181
€ 1551
€ 2316
€ 3768
€ 4887
Thicknesses are accurate up to some mm, depending on availability in stock.
Diameter Thickness Duran 50, λ/10
Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc.
  20 mm
  25 mm
  30 mm
  40 mm
  50 mm
  60 mm
  70 mm
  80 mm
100 mm
120 mm
150 mm
180 mm
200 mm
250 mm
300 mm
  4 mm
  4 mm
  5 mm
  6 mm
  8 mm
  8 mm
10 mm
10 mm
15 mm
15 mm
20 mm
20 mm
27 mm
33 mm
40 mm
SHD 1.020
SHD 1.025
SHD 1.030
SHD 1.040
SHD 1.050
SHD 1.060
SHD 1.070
SHD 1.080
SHD 1.100
SHD 1.120
SHD 1.150
SHD 1.180
SHD 1.200
SHD 1.250
SHD 1.300
€ 356
€ 367
€ 416
€ 449
€ 508
€ 574
€ 634
€ 760
€ 1109
€ 1491
€ 1633
€ 2141
€ 3244
€ 5220
€ 6382
€ 342
€ 353
€ 400
€ 432
€ 490
€ 553
€ 610
€ 731
€ 1068
€ 1432
€ 1568
€ 2056
€ 3115
€ 5012
€ 6127
€ 335
€ 346
€ 392
€ 423
€ 479
€ 541
€ 598
€ 716
€ 1046
€ 1402
€ 1536
€ 2013
€ 3050
€ 4907
€ 6000
Thicknesses are accurate up to some mm, depending on availability in stock.

Material Zerodurto top

Diameter Thickness Zerodur, λ/20
Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc.
  20 mm
  25 mm
  30 mm
  40 mm
  50 mm
  60 mm
  70 mm
  80 mm
100 mm
120 mm
150 mm
180 mm
200 mm
250 mm
300 mm
  4 mm
  4 mm
  5 mm
  6 mm
  8 mm
  8 mm
10 mm
10 mm
15 mm
15 mm
20 mm
20 mm
27 mm
33 mm
40 mm
SHZ 1.020
SHZ 1.025
SHZ 1.030
SHZ 1.040
SHZ 1.050
SHZ 1.060
SHZ 1.070
SHZ 1.080
SHZ 1.100
SHZ 1.120
SHZ 1.150
SHZ 1.180
SHZ 1.200
SHZ 1.250
SHZ 1.300
€ 357
€ 369
€ 419
€ 455
€ 521
€ 595
€ 669
€ 815
€ 1217
€ 1657
€ 1956
€ 2700
€ 4020
€ 6702
€ 8969
€ 343
€ 355
€ 403
€ 438
€ 503
€ 574
€ 645
€ 786
€ 1176
€ 1598
€ 1891
€ 2615
€ 3891
€ 6494
€ 8714
€ 336
€ 348
€ 395
€ 429
€ 492
€ 562
€ 633
€ 771
€ 1154
€ 1568
€ 1859
€ 2572
€ 3826
€ 6389
€ 8587
Thicknesses are accurate up to some mm, depending on availability in stock.

Diameter Thickness Zerodur, λ/20
Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc.
  20 mm
  25 mm
  30 mm
  40 mm
  50 mm
  60 mm
  70 mm
  80 mm
100 mm
120 mm
150 mm
180 mm
200 mm
250 mm
300 mm
  4 mm
  4 mm
  5 mm
  6 mm
  8 mm
  8 mm
10 mm
10 mm
15 mm
15 mm
20 mm
20 mm
27 mm
33 mm
40 mm
SHZ 2.020
SHZ 2.025
SHZ 2.030
SHZ 2.040
SHZ 2.050
SHZ 2.060
SHZ 2.070
SHZ 2.080
SHZ 2.100
SHZ 2.120
SHZ 2.150
SHZ 2.180
SHZ 2.200
SHZ 2.250
SHZ 2.300
€ 431
€ 446
€ 506
€ 551
€ 632
€ 723
€ 815
€ 995
€ 1491
€ 2039
€ 2421
€ 3362
€ 5025
€ 8462
€ 11436
€ 414
€ 429
€ 487
€ 530
€ 610
€ 698
€ 786
€ 959
€ 1441
€ 1966
€ 2341
€ 3256
€ 4864
€ 8199
€ 11111
€ 405
€ 420
€ 477
€ 520
€ 597
€ 683
€ 771
€ 941
€ 1414
€ 1929
€ 2301
€ 3203
€ 4783
€ 8067
€ 10949
Thicknesses are accurate up to some mm, depending on availability in stock.


Reflection coatingsto top

  • Aluminium and quartz protective layer for the visible SPS 1 | additional price 10%
    minimum orderSPS 1Mindest | € 200
  • Aluminium without protective layer for IR SPS 2 | additional price 20%
    minimum orderSPS 2Mindest | € 440
  • Aluminium and quartz layer for UV SPS 3 | additional price 20%
    minimum orderSPS 3Mindest | € 420
  • Aluminium and MgF2 protective layer for vacuum UV → on request
  • Hard, dielectric multi-layer coatings → on request

Available on special orderto top

  • Other types of mirrors (rectangular, square or to specification) → on request
  • Mirror substrates made from other materials, including crystal → on request
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