Axicons are widely used for different beam shaping setups together with other optical elements or alone. Most popular applications of axicons include transformation of a collimated Gaussian beam into an approximation of non-diffractive Bessel beam in the near field, conversion of a laser beam into a ring shaped beam or generation of thick-wall hollow "pipe" of light.
In addition to our popular standard plano-convex axicons we are now pleased to offer you precision grade conical lenses designed for high performance applications.
STANDARD
|
PRECISION
|
|
Material
|
BK7, UVFS
|
UVFS
|
Surface quality
|
60-40 scratch & dig (MIL-PRF-13830B)
|
40-20 scratch & dig (MIL-PRF-13830B)
|
Clear aperture
|
90% of the diameter
|
90% of the diameter
|
Diameter tolerance
|
+0.00, -0.12 mm
|
+0.00, -0.1 mm
|
Edge thickness
|
8 mm
|
3.5 mm
|
Angle tolerance
|
±0.5°
|
±0.05° (±3 arcmin)
|
Surface irregularity
|
1λ @ 633 nm
|
λ/4 @ 633 nm
|
Apex rounding
|
dia <3 mm
|
dia <0.4 mm
|
Axicons can be supplied with AR or BBAR coatings. Please send a request for a custom product.