Elliptische flache Spiegel

Elliptische flache Spiegel

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Material BK7, UVFS
Diameter tolerance +0/-0.1 mm
Thickness tolerance ±0.1 mm
Clear aperture >90%
Surface quality 40-20 S-D
Surface flatness <λ/8 @ 632.8 nm
Parallelism error <30 arcsec
Protective chamfers <0.25 mm x 45°
Laser damage threshold Protected Aluminum: >0.25 J/cm² for 10 ns pulses @1064 nm
Protected Silver: >1.8 J/cm² for 10 ns pulses @1064 nm
Protected Gold: >0.9 J/cm² for 10 ns pulses @1064 nm
When the maximum possible clear aperture is required, the best choice is elliptical flat mirrors. Due to unique geometry of substrate, the aperture becomes circular when mirror is rotated by 45˚ around the minor axis. List of standard mirrors contains 16 different items. 4 different sizes, scaling from 12,7 mm up to 50,8 mm, and 4 types of metallic coatings are availabe. The most common aluminum coating features a fair reflection in UV, visible and mid - IR wavelenght ranges. Protected silver coatings assures the highest reflectivity of all metal coated mirrors in the visible wavelength range. Protected gold is the most efficient coating over the entire IR range. However, if higher reflectivity is needed, the best choice is dielectric coated elliptical mirrors; Altechna can also offer such custom solutions.
varna Broad band protected metallic coatings
varna Dielectric HR coatings are available
varna Paralellism <30 arcsec
varna Circular clear aperture

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Produkte per Seite Seite
Coatings Major axis, mm Material Minor axis, mm Thickness, mm Delivery Produkt ID Price
Protected Aluminum Ravg > 85 % @ 400 nm - IR 17.96 BK7 12.7 5 Request 1-OS-1-127-1796-5-[9AL0] Request REQ
Protected Silver Ravg > 96 % @ 550 nm - IR 17.96 BK7 12.7 5 Request 1-OS-1-127-1796-5-[9AG0] Request REQ
Protected Gold Ravg > 96 % @ 750 nm - IR 17.96 BK7 12.7 5 Request 1-OS-1-127-1796-5-[9AU0] Request REQ
Protected Aluminum Ravg > 85 % @ 400 nm - IR 35.92 BK7 25.4 5 Request 1-OS-1-254-3592-5-[9AL0] Request REQ
Protected Silver Ravg > 96 % @ 550 nm - IR 35.92 BK7 25.4 5 Request 1-OS-1-254-3592-5-[9AG0] Request REQ
Protected Gold Ravg > 96 % @ 750 nm - IR 35.92 BK7 25.4 5 Request 1-OS-1-254-3592-5-[9AU0] Request REQ
Protected Aluminum Ravg > 85 % @ 400 nm - IR 53.88 BK7 38.1 10 Request 1-OS-1-381-5388-10-[9AL0] Request REQ
Protected Gold Ravg > 96 % @ 750 nm - IR 53.88 BK7 38.1 10 Request 1-OS-1-381-5388-10-[9AU0] Request REQ
Protected Aluminum Ravg > 85 % @ 400 nm - IR 71.84 BK7 50.8 10 Request 1-OS-1-508-7184-10-[9AL0] Request REQ
Protected Silver Ravg > 96 % @ 550 nm - IR 71.84 BK7 50.8 10 Request 1-OS-1-508-7184-10-[9AG0] Request REQ
Protected Gold Ravg > 96 % @ 750 nm - IR 71.84 BK7 50.8 10 Request 1-OS-1-508-7184-10-[9AU0] Request REQ
UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm 17.96 UVFS 12.7 5 Request 1-OS-2-127-1796-5-[9AL1] Request REQ
UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm 35.92 UVFS 25.4 5 Request 1-OS-2-254-3592-5-[9AL1] Request REQ
UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm 53.88 UVFS 38.1 10 Request 1-OS-2-381-5388-10-[9AL1] Request REQ
UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm 71.84 UVFS 50.8 10 Request 1-OS-2-508-7184-10-[9AL1] Request REQ
Protected Silver Ravg > 96 % @ 550 nm - IR 53.88 BK7 38.1 10 From stock 1-OS-1-381-5388-10-[9AG0] Request REQ

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