The CaF₂, MgF₂ and ZnSe cylindrical lenses serve researchers and engineers working across extreme spectral ranges. Unlike spherical lenses, they focus light into lines, ideal for laser scanning, spectroscopy and anamorphic imaging.
CaF₂: High UV‑Mid‑IR transmittance (180 nm–8 μm), low refractive index, excellent thermal stability
MgF₂: Durable VUV‑grade material (120 nm–7 μm), resistant to mechanical and thermal shock
ZnSe: Standard IR / CO₂ laser optic (0.5 μm–15 μm), low IR absorption, visible‑red transparency for easy alignment
All lenses are precision‑polished to strict surface standards, ensuring stable peak power and image quality for your optical systems.
Technical Specification
Part of the parameters is provided for reference only. For further information and full specifications, please consult our sales representatives.
|
Material |
Transmission Band |
Common Dimensions |
Common Focal Lengths |
|
CaF₂ (Calcium Fluoride) |
0.13–10 μm (Deep UV–Mid IR) |
φ12.7 mm, φ25.4 mm; 25×25 mm, 50×50 mm |
20 mm, 25 mm, 50 mm, 100 mm, 200 mm, 350 mm |
|
MgF₂ (Magnesium Fluoride) |
110 nm–7.5 μm (Vacuum UV–Near IR) |
φ10 mm, φ20 mm, φ25.4 mm; 10×10 mm, 20×20 mm |
30 mm, 50 mm, 100 mm, 200 mm |
|
ZnSe (Zinc Selenide) |
0.5–15 μm (Visible–Long Wave IR), especially for 10.6 μm |
25.4×25.4 mm, 50×50 mm; φ25.4 mm, φ50.8 mm |
127 mm, 190.5 mm, 254 mm, 500 mm |
Application Scenarios
- Laser Line Generation: Creating high-uniformity lines for 3D scanning, industrial alignment, and machine vision.
- Anamorphic Beam Shaping: Correcting the elliptical output of laser diodes into a circular or collimated profile.
- Spectroscopy: Focusing light onto slit apertures in VUV and Mid-IR spectrometers.
- Thermal Imaging: One-dimensional target detection in high-speed infrared line-scan cameras.
- Medical & Scientific Research: Fluorescent imaging and high-power laser surgical equipment components.
Key Functions & Advantages
- Low Birefringence: CaF2 and MgF2 options provide excellent polarization maintenance for sensitive UV experiments.
- Chemical Resistance: MgF2 provides a highly stable surface that resists degradation in harsh laboratory or industrial atmospheres.
- Visible Alignment: ZnSe lenses allow a red he-ne pilot beam to pass through the same optical path as the CO2 laser, simplifying system setup.
- Optimized Throughput: Precision-matched AR coatings can reduce reflection losses to less than 0.25% per surface.
- Flexible Geometry: Available in Plano-Convex, Plano-Concave, and Meniscus profiles to meet specific divergence or convergence needs.
Product Series & Availability
● Precision Machining Capability
Capable of machining shaft parts, rotary table parts and complex structural parts. Complete and reliable process assurance measures, as well as sophisticated processing and inspection methods are available for precision mechanical manufacturing.
● Precision Optical Manufacturing Capability
Capable of manufacturing high-precision lenses for visible light and infrared applications, high-precision prisms and high-precision aspherical components. The company can mass-produce various high-precision optical components including spherical, planar, prismatic, cylindrical and aspherical elements covering the visible to infrared wavebands.
● Precision Opto-Mechanical Assembly Capability
Capable of high-precision shafting assembly and precision optical lens system assembly for visible light and infrared applications. Possesses capabilities in system development, optical testing and integrated alignment.
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