UV Aluminum Mirror, Pinhole-Free, Borofloat, 50.8 mm, λ/10, 250-600 nm

High-Performance Borofloat 33 Metallic Mirrors

The 20D20AL.2-PF Pinhole-Free Broadband UV Enhanced Aluminum Mirror was developed to be virtually free of pinholes to significantly decrease scattering effects. Our Pinhole-Free mirrors are ideal for sensitive applications which require an economical broadband reflector. This 50.8 mm (2.0 inch) diameter mirror is made from a 12.7 mm thick Borofloat® 33 substrate. Borofloat has low thermal expansion and is an excellent substrate for most applications. The AL.2-PF UV enhanced aluminum coating is a durable, broadband UV reflector with an average reflectivity greater than 90% from 250-600 nm. The AL.2 aluminum coating contains a durable dielectric overcoat to prevent oxidation of the metal. This mirror has a λ/10 surface flatness and a 15-5 surface quality.

Specifications

Technical Specs

Wavelength Region
UV
Wavelength Range
250-600 nm
Mirror Shape
Round
Diameter
50.8 mm
Mirror Size
Ø50.8 mm
Thickness
12.7 mm
Material
Borofloat® 33
Coating Type
UV Enhanced Aluminum
Coating Code
AL.2-PF
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Substrate Number
20D20

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>90% @ 250-600 nm
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.38–1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Region
UV
Wavelength Range
250-600 nm
Mirror Shape
Round
Diameter
50.8 mm
Mirror Size
Ø50.8 mm
Thickness
12.7 mm
Material
Borofloat® 33
Coating Type
UV Enhanced Aluminum
Coating Code
AL.2-PF
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Substrate Number
20D20

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>90% @ 250-600 nm
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.38–1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

Other

20D20AL.2-PF RoHS Certificate(701.9 kB, PDF)
AL.2 Raw Data CH.xlsx(1.6 MB, XLSX)

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