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AXICON - PLANO CONCAVE0 pages
axicons
Axicons are optical components with at least one conical surface. It is possible to have different combinations of concave or convex conical
surfaces on one side with plano or spherical surfaces on the other side, i.e., plano-convex, plano-concave, double convex, etc.
Optical axicons are optical components with a conical surface on one side and plan or spherical surface on the other side. They are made of
optically transparent or filter materials with polished opposite sides, ground edges and chamfers. An axicon made up of conical and flat
surface produces a line image along the axis from a point light source. On the other hand, an axicon made up of conical and spherical
surfaces focus parallel beam into a ring on a given distance. The conical surface can be concave or convex depending of the axicon angle.
Different coatings can be applied on the polished sides of axicons. The convex conical surface can be used as a mirror axicon.
Axicons are used to transform laser beams into infinite focus beams or to focus collimated beam into a ring. They later can be used for laser
material processing.
WEBCODE:
D148-xxx
LENS DRAWING
SPECIFICATIONS
SYMBOL
VALUE
Lens Type
PLANO-CONVEX
Material
FUSED SILICA
BK7
Operating Wavelength
λ
Available base angle
α
400 – 1600 nm
Available diameter
Φ
Diameter tolerance
ΔΦ
+ 0.0 / - 0.1 mm
Central Thickness
CT
function of base abgle and diameter
0.5°
1.0°
10.0 mm
5°
25.4 mm
Conic Irregularities
25°
50.8 mm
< 2.0 µm P-V
Flatness (plano side)
10°
λ/4
AR coating
Note
AR
2S-VIS : broad band 2 side AR coating @ 600 – 900 nm
2S-NIR : broad band 2 side AR coating @ 750 – 1100 nm
other custom base angle and AR coating are available upon request
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AXICONS (12/07)
www.doriclenses.com
418.877.5600
