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Barium Fluoride Lens
Optical Material

Barium Fluoride Lens

Supplier
Scysgx
Category
Optical Material
Origin
China

Barium fluoride(BaF₂) is a broadband optical crystal spanning deep UV to mid-IR, with high transmission, low dispersion, homogeneous refractive index, and good mechanical stability. Applications include dual UV/IR systems, medical optics, IR detection, spectroscopy, and research. Scysgx uses high-purity single-crystal barium fluoride substrates, more than 260 precision-processing machines, and 65 specialist inspection instruments for a closed-loop production chain from cutting, grinding, and polishing to coating and inspection. plano-convex, biconvex, plano-concave, meniscus, focusing, and collimating lenses span 1–500mm, with surface accuracy up toλ/10. It provides precise, highly stable lenses for broadband optical systems.

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Overview

Barium fluoride(BaF₂) is a broadband optical crystal spanning deep UV to mid-IR, with high transmission, low dispersion, homogeneous refractive index, and good mechanical stability. Applications include dual UV/IR systems, medical optics, IR detection, spectroscopy, and research. Scysgx uses high-purity single-crystal barium fluoride substrates, more than 260 precision-processing machines, and 65 specialist inspection instruments for a closed-loop production chain from cutting, grinding, and polishing to coating and inspection. plano-convex, biconvex, plano-concave, meniscus, focusing, and collimating lenses span 1–500mm, with surface accuracy up toλ/10. It provides precise, highly stable lenses for broadband optical systems.

Specifications

ParameterValue
Material [Standard Specifications]High-Purity Barium Fluoride Single Crystal (BaF₂)
Diameter Range [Standard Specifications]1–500mm
Diameter Tolerance [Standard Specifications]±0.01mm
Center Thickness Tolerance [Standard Specifications]±0.02mm
Surface Figure Accuracy [Standard Specifications;@632.8nm]0.5λ
Surface Quality [Standard Specifications]60/40
Decentration [Standard Specifications]±1′
Chamfer [Standard Specifications]0.2–0.5mm×45°
Applicable Wavelength Band [Standard Specifications]120nm–7000nm
Material [High-Precision Grade Specifications]High-Purity Barium Fluoride Single Crystal (BaF₂)
Diameter Range [High-Precision Grade Specifications]1–500mm
Diameter Tolerance [High-Precision Grade Specifications]±0.01mm
Center Thickness Tolerance [High-Precision Grade Specifications]±0.01mm
Surface Figure Accuracy [High-Precision Grade Specifications;@632.8nm]λ/10
Surface Quality [High-Precision Grade Specifications]60/40
Decentration [High-Precision Grade Specifications]±0.5′
Chamfer [High-Precision Grade Specifications]0.2–0.5mm×45°
Applicable Wavelength Band [High-Precision Grade Specifications]120nm–7000nm

Applications

UV optics: deep-UV detection, UV spectrometers, UV laser equipment and UV sensing. Infrared optics: mid-IR thermal imaging, infrared temperature measurement, detection and sensing lenses. Medical optics: UV diagnosis, infrared noninvasive testing and precision medical imaging optical paths. Research and metrology: university laboratories, astronomical optics, precision spectrometers and metrology equipment. Laser equipment: UV/IR laser focusing, collimation and beam delivery. Aerospace optics: space infrared detection, broadband optical reconnaissance and airborne imaging.

Key Features

Ultrabroad transmission: stable, excellent deep-UV-to-mid-IR transmission over 120nm–7000nm (0.12–7μm). Ultralow-dispersion imaging: Abbe number up to 81.6, excellent chromatic correction and distortion-free precision imaging. High optical homogeneity: uniform, stable refractive index without scattering or impurities ensures accurate optical transmission. Ultraprecision fabrication: dimensional tolerance ±0.01mm, surface figure to λ/10 and surface quality 60-40. Full structural customization: spherical/aspherical, plano-convex/biconvex/plano-concave/meniscus designs. Broadband coating compatibility: UV, near-IR and mid-IR antireflection and high-laser-damage coatings. IV. Core material advantages. Spectral coverage: high broadband transmission over 120nm (deep UV)–7000nm (mid-IR), a preferred dual-band material. Optical properties: refractive index n_d=1.475, Abbe number 81.6, ultralow dispersion, high contrast and easily corrected aberrations. Physical properties: density 4.89 and moderate mechanical strength enable ultraprecision polishing and large-size fabrication. Application advantages: excellent radiation resistance for medical optics, research spectroscopy and aerospace optics. Processing compatibility: easy coating and centering/edge grinding meet custom precision-optics requirements. V. Available structures: plano-convex, biconvex, plano-concave, biconcave, meniscus, collimating, focusing and aspheric lenses. VI. Standard coatings. Deep-UV/UV AR: dedicated 0.28–3μm antireflection improves UV transmission. Mid-IR AR: 3–5μm for infrared detection and thermal imaging. Broadband AR: full-band 0.12–7μm for dual-band optics. High-laser-damage-threshold coatings improve strong-laser resistance in high-power UV/IR systems. VIII. Yasi Optical advantages. Fully controlled in-house closed-loop cutting → milling/grinding → polishing → coating → inspection, with full traceability. Precision equipment: ZYGO interferometers, Nikon precision goniometers and optical dimensional measuring instruments for comprehensive quality control. Large-size fabrication: batch production of 1–500mm large-aperture barium fluoride lenses for high-end systems. One-stop customization: dimensions, structure, focal length and coatings, with optical-path adaptation support. Medical/research compatibility: high-reliability products support medical and research equipment compliance. IX. Quality assurance. All barium fluoride lenses undergo ZYGO interferometric figure, optical dimensional, spectral transmission and surface-quality inspections to ensure 100% optical-performance and dimensional compliance. Automated ultrasonic ultraclean washing and vacuum moisture-proof packaging ensure transport and long-term stability.

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Supplier Information

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Scysgx
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Sichuan Yasi Optics is a source factory focusing on the R&D and manufacturing of optical components, which has rapidly emerged as a benchmark enterprise in the industry that combines innovation and quality. The company's core business focuses on the customized production of various optical components such as optical prisms, optical lenses, optical windows, laser lenses, etc. The products are widely suitable for application needs in multiple industries including medical, manufacturing, and scientific research. In terms of material selection, we support diverse substrates such as NBK7, quartz, sapphire, germanium, molybdenum, copper, zinc sulfide, fluoride, gallium arsenide, etc., to meet performance requirements in different scenarios. Relying on more than 260 processing equipment and 13 professional testing equipment, we have built a complete processing chain from cutting, grinding, polishing, coating to inspection and delivery. We can not only achieve rapid delivery of small and large batch products, but also precisely meet the personalized production needs of different customers.

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