Elliptical Flat Mirrors

More Views

Elliptical Flat Mirrors

Elliptical flat aluminum, silver and gold coated mirrors.

Clear Aperture, %	>90%
Diameter Tolerance, mm	+0.0/-0.1 mm
Laser Damage Threshold, J/cm²	Protected Aluminum: >0.25 J/cm² for 11 ns pulses @1064 nm Protected Silver: >1.8 J/cm² for 11 ns pulses @1064 nm Protected Gold: >0.9 J/cm² for 11 ns pulses @1064 nm
Material	BK7, UVFS for UV enhanced mirrors
Parallelism, arcsec	<30 arcsec
Protective chamfers	<0,25 mm x 45 deg
Protective Coating	SiO2
Surface Flatness	<λ/8 @ 633 nm
Surface Quality, S-D	40/20 S/D
Thickness Tolerance, mm	+/-0.1 mm

Description

Details

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; Laserand can also offer such custom solutions.

Features

Broad band protected metallic coatings
Dielectric HR coatings are available
Paralellism <30 arcsec
Circular clear aperture

Name	Coatings	Major Axis, mm	Minor Axis, mm	Thickness, mm	Price	Quantity
1-OS-1-127-1796-5-[9AG0]	Protected Silver Ravg > 96 % @ 550 nm - IR	17.96	12.7	5	US$58.50
1-OS-1-127-1796-5-[9AL0]	Protected Aluminum Ravg > 85 % @ 400 nm - IR	17.96	12.7	5	US$46.80
1-OS-1-127-1796-5-[9AU0]	Protected Gold Ravg > 96 % @ 750 nm - IR	17.96	12.7	5	US$67.60
1-OS-1-254-3592-5-[9AG0]	Protected Silver Ravg > 96 % @ 550 nm - IR	35.92	25.4	5	US$65.00
1-OS-1-254-3592-5-[9AL0]	Protected Aluminum Ravg > 85 % @ 400 nm - IR	35.92	25.4	5	US$58.50
1-OS-1-254-3592-5-[9AU0]	Protected Gold Ravg > 96 % @ 750 nm - IR	35.92	25.4	5	US$78.00
1-OS-1-381-5388-10-[9AG0]	Protected Silver Ravg > 96 % @ 550 nm - IR	53.88	38.1	10	US$97.50
1-OS-1-381-5388-10-[9AL0]	Protected Aluminum Ravg > 85 % @ 400 nm - IR	53.88	38.1	10	US$91.00
1-OS-1-381-5388-10-[9AU0]	Protected Gold Ravg > 96 % @ 750 nm - IR	53.88	38.1	10	US$110.50
1-OS-1-508-7184-10-[9AG0]	Protected Silver Ravg > 96 % @ 550 nm - IR	71.84	50.8	10	US$123.50
1-OS-1-508-7184-10-[9AL0]	Protected Aluminum Ravg > 85 % @ 400 nm - IR	71.84	50.8	10	US$117.00
1-OS-1-508-7184-10-[9AU0]	Protected Gold Ravg > 96 % @ 750 nm - IR	71.84	50.8	10	US$136.50
1-OS-2-127-1796-5-[9AL1]	UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm	17.96	12.7	5	US$52.00
1-OS-2-254-3592-5-[9AL1]	UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm	35.92	25.4	5	US$65.00
1-OS-2-381-5388-10-[9AL1]	UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm	53.88	38.1	10	US$100.10
1-OS-2-508-7184-10-[9AL1]	UV enhanced Aluminum Ravg > 85 % @ 250 nm - 600 nm	71.84	50.8	10	US$128.70