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Fibercryst

La Doua – Bat. l'Atrium
Bd LATARJET
F- 69616 VILLEURBANNE
FRANCE

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Tel: +33 (0) 426 237 121
Mob: +33 (0)688 02 32 26
Fax: +33 (0) 426 689 874

contact@fibercryst.com

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Plano-Concave Axicon (Conical lens)

Plano-Concave Axicon (Conical lens) image

Features

varna Produces a line image along the axis from a point light source or non diffractive Bessel beam
varna Available diameter up to 70mm
varna Plano Convex, Plano Concave and Double Convex available
varna Various AR coatings are available for all these lenses. Please refer to the Coatings section.

Description

Fibercryst is able to offer and Plano-Concave Axicons of various dimensions and Apex angles.

Plano-concave axicons are made of a plano surface in combination with a concave conical surface. 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. Due to fabrications process, a central hole is needed for concave conical surface. Hole diameter is typically 1 mm. Different coatings can be applied on the polished sides of axicons. The concave conical surface can be used as a mirror axicon.

Standard Specifications

AR coatings None. Please refer to the Coatings section.
Design wavelength 633 nm
Surface Quality 40-20 scratch & dig
Material BK7, UVFS
Diameter Tolerance +0.0, -0.15 mm
Thickness Tolerance +/-0.1 mm
Edge thickness 9 mm
Apex angle 90
Clear Aperture >90%
Apex angle Tolerance +/-0.5
Surface Figure L/4 @ 632.8 nm
 

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