also refer to

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 Duran 50

Diameter	Thickness	Duran 50, λ/4
Diameter	Thickness	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	€ 246 € 260 € 273 € 292 € 382 € 419 € 509 € 573 € 822 € 1113 € 1219 € 1601 € 2391 € 3891 € 5046	€ 237 € 250 € 263 € 281 € 368 € 403 € 490 € 551 € 791 on request on request on request on request on request on request	€ 232 € 245 € 257 € 275 € 360 € 395 € 480 € 540 € 775 on request on request on request on request on request on request
Thicknesses are accurate up to some mm, depending on availability in stock.

Diameter	Thickness	Duran 50, λ/10
Diameter	Thickness	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	€ 345 € 356 € 403 € 435 € 493 € 557 € 615 € 737 € 1076 € 1447 € 1585 € 2078 € 3149 € 5067 € 6196	€ 332 € 342 € 388 € 419 € 475 € 536 € 592 € 709 € 1036 on request on request on request on request on request on request	€ 325 € 335 € 380 € 410 € 465 € 525 € 580 € 695 € 1015 on request on request on request on request on request on request
Thicknesses are accurate up to some mm, depending on availability in stock.

Diameter	Thickness	Duran 50, λ/20
Diameter	Thickness	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	4 mm 4 mm 5 mm 6 mm 8 mm 8 mm 10 mm 10 mm 15 mm	SHD 2.020 SHD 2.025 SHD 2.030 SHD 2.040 SHD 2.050 SHD 2.060 SHD 2.070 SHD 2.080 SHD 2.100	€ 456 € 474 € 552 € 636 € 726 € 816 € 918 € 1110 € 1500	€ 426 € 443 € 516 € 594 € 678 € 762 € 857 € 1036 € 1400	€ 399 € 415 € 483 € 557 € 636 € 714 € 804 € 972 € 1313
Thicknesses are accurate up to some mm, depending on availability in stock.

Material Zerodur

Diameter	Thickness	Zerodur, λ/20
Diameter	Thickness	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	€ 456 € 474 € 558 € 642 € 738 € 840 € 948 € 1176 € 1662 € 2454 € 2688 € 3294 € 4980 € 7056 € 9180	€ 426 € 443 € 521 € 600 € 689 € 784 € 885 € 1098 € 1552 on request on request on request on request on request on request	€ 399 € 415 € 489 € 562 € 646 € 735 € 830 € 1029 € 1455 on request on request on request on request on request on request
Thicknesses are accurate up to some mm, depending on availability in stock.

Reflection coatings

Aluminium and quartz protective layer for the visible → SPS 1
minimum order→ SPS 1Mindest
Aluminium without protective layer for IR → SPS 2
minimum order→ SPS 2Mindest
Aluminium and quartz layer for UV → SPS 3
minimum order→ SPS 3Mindest
Aluminium and MgF₂ protective layer for vacuum UV → on request
Hard, dielectric multi-layer coatings → on request

Available on special order

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

Shortinfo

Categorie

Mirror

Typ

concave mirror substrate

Material

DURAN 50; Zerodur

further info

surface flatness λ/4, λ/10, λ/20, not coated

standard sizes

20 - 300mm

prices

246 - 9180 €

Downloads

Data sheet