Description

To: CSOC
Re: Sapphire Cylindrical Lenses

Sapphire cylindrical lenses are precision optical components engineered to focus or expand light in a single axis while leaving the orthogonal axis unaffected, enabling precise control of beam shape and focal distribution. Fabricated from high-purity single-crystal sapphire (Al₂O₃), these lenses combine cylindrical optics with sapphire's exceptional material properties, delivering reliable performance in the most demanding optical systems.

Specifications

Lens Type:	Positive, Negative
Material:	BK7, FS, UVFS, CaF2, ZnSe, Ge, H-K9L
Diameter Tolerance:	+/-0.1mm (+/-0.005mm for customized high precision)
Length Tolerance:	+/-0.1mm (+/-0.02mm for customized high precision)
Surface Quality:	60/40 (10/5 for customized high precision)
Centration:	3 arc minutes
Radius Tolerance:	+/-0.5%
Flatness:	up to 1/2 lambda at 632.8nm for customized high precision

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Features

Single-axis optical power: focusing light into a line or expanding one beam dimension, ideal for anamorphic beam shaping and astigmatism correction
Broad spectral transmission from UV to mid-infrared (~0.17–5.5 µm), supporting laser, spectroscopic, and imaging applications across multiple wavelength ranges
Extreme hardness and scratch resistance (9 on the Mohs scale), withstanding harsh, high-pressure, and abrasive environments
High thermal conductivity and thermal shock resistance, with a melting point of approximately 2050 °C, enabling stable operation under high-power laser irradiation
High laser damage threshold and chemical inertness, suitable for intense and corrosive operating conditions