Lenses - KingwinOptics

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Achromatic Doublet Lenses

Minimizes Chromatic Aberration: By utilizing different optical glass materials, the lens effectively reduces color-related blurring, ensuring clear and sharp images.

Spherical and On-Axis Comatic Aberration Correction: The lens design allows for the correction of spherical and on-axis comatic aberration, enhancing overall optical performance.

Constant Focal Length: The combination of low and high refractive index glasses delivers a consistent focal length across a specific optical spectrum.

High Power Throughput and Smaller Focal Point Diameters: The lens design attenuates spherical aberrations and coma without reducing the numerical aperture, resulting in improved power throughput and reduced focal point diameters.

Applications: Multi-Color White Light Imaging/Illumination, Laser Light Modulation, NA Conversion, Customizable Working Wavelength Ranges, etc.

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Ball Lenses

High Precision and Low Spherical Aberration: Ball lenses are precisely processed to ensure high precision and low spherical aberration, providing clear, distortion-free image transmission.

Short Back Focal Length (BFL): Compared to other types of lenses, ball lenses have a shorter back focal length, which is particularly important for compact optical systems.

Rotational Symmetry: This characteristic simplifies the alignment and positioning process of the lens, enhancing the overall performance and reliability of the system.

Material Diversity: Ball lenses can be made from various materials, including optical glass, quartz, and others, to meet the demands of different applications.

Durability and Stability: High-quality materials and manufacturing processes ensure the durability and long-term stability of ball lenses.

Applications: Fiber Optic Communication, Sensor Technology, Medical Instruments, Scientific Research, Consumer Electronics, etc.

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Barium Fluoride (BaF2) Lenses

Broad Transmission Range: BaF2 lenses exhibit high transmission rates above 90% across a wide spectral range (0.25µm to 9.5µm), making them versatile for various optical applications.

Radiation Resistance: More resistant to high-energy radiation compared to Calcium Fluoride (CaF2), making BaF2 lenses suitable for environments with intense radiation.

High Transmission Rates: Excellent transmission properties in the UV, visible, and IR regions ensure minimal signal loss and high-quality imaging.

Thermal Imaging Applications: Often used in thermal cameras integrated with cryogenic coolers for MWIR (3-5µm) thermal imaging applications.

Applications: Thermal imaging, spectroscopy, astronomy, defense, laser systems.

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Biconvex Lenses

Positive Focal Length: The Biconvex Lens has a positive focal length, allowing it to effectively converge collimated light.

Versatile Applications: Its uses extend to modulation and focusing of laser beams, as well as imaging instruments, demonstrating its versatility in optical applications.

Optimal Performance in Specific Scenarios: When the absolute finite conjugate ratio is close to 1:1, Biconvex Lenses are particularly recommended as they help minimize spherical aberration, coma, and distortion.

Customizable Options: Kingwin Optics offers tailored specifications for diameters, focal lengths, and f/numbers, along with custom coating options to suit specific application requirements.

High Precision: The lens surface irregularities can be manufactured to the conventional λ/4 or λ/8, depending on the precision needed for the application.

Applications: Laser Systems, Imaging Technology, Optical Instrumentation, etc.

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CaF2 Plano-concave Lenses

Wide Spectral Transmission Range: CaF2 lenses offer a very wide transmission range, typically from the ultraviolet (UV) region at around 150 nm to the infrared (IR) region at up to 8 µm. This wide transmission range makes them suitable for applications requiring light manipulation across multiple spectral bands.

Excellent UV Transmittance: CaF2 exhibits excellent ultraviolet transmittance, making it an ideal material for UV optics. This property is particularly useful in applications such as UV spectroscopy, UV imaging, and UV laser systems.

High Laser Durability: CaF2 has a high laser-induced damage threshold (LIDT), which means it can withstand high laser power without significant degradation. This high laser durability makes CaF2 plano-concave lenses suitable for use in high-power laser systems and applications.

Low Fluorescence: Compared to some other optical materials, CaF2 has minimal fluorescence, which helps reduce background noise in imaging and spectroscopic applications.

Customizable Designs: Many manufacturers offer CaF2 plano-concave lenses with customizable dimensions, focal lengths, and coatings to meet specific application requirements. This flexibility allows users to tailor the lenses to their exact needs.

Precision Optics: CaF2 plano-concave lenses are often manufactured to precise specifications, ensuring high optical quality and performance. This precision is crucial for applications requiring accurate light manipulation and focusing.

Versatility: Due to their wide transmission range and excellent optical properties, CaF2 plano-concave lenses find applications in various fields, including scientific research, medical and biotech, environmental monitoring, aerospace and defense, and industrial applications.

Compatibility with Advanced Coatings: CaF2 lenses can be coated with various anti-reflection (AR) coatings to further enhance their optical performance. These coatings can be tailored to specific wavelengths and applications, providing optimal transmission and reflection properties.

Applications: Ultraviolet (UV) and Infrared (IR) Optics, Beam Expansion and Collimation, Imaging Systems, Laser Optics, Optical Communications, Scientific Research and Instrumentation, etc.

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CaF2 Plano-Convex Lenses

Wide Transmission Range:

Ultraviolet to Infrared: CaF2 lenses offer a very wide transmission range, typically from 150 nm in the ultraviolet (UV) to 8 µm in the infrared (IR), making them suitable for a broad spectrum of optical systems.

High Optical Performance:

Low Fluorescence: CaF2 exhibits minimal fluorescence, which is crucial for applications requiring high sensitivity and low background noise, such as UV spectroscopy and imaging.

Excellent UV Transmittance: The material’s excellent ultraviolet transmittance makes it ideal for UV applications, including UV lithography, laser optics, and UV spectroscopy.

High Laser Durability:

High Damage Threshold: CaF2 has a high laser damage threshold, allowing it to withstand intense laser radiation without significant degradation, making it suitable for use in excimer laser optics and other high-power laser systems.

Chemical Inertness and Hardness:

Chemical Stability: CaF2 is chemically inert, making it resistant to corrosion and degradation from various chemicals and environments.

High Hardness: Compared to similar materials like barium fluoride and magnesium fluoride, CaF2 has superior hardness, which contributes to its durability and scratch resistance.

Customizable and Versatile:

Multiple Coatings: CaF2 plano-convex lenses can be coated with anti-reflection (AR) coatings optimized for specific wavelength ranges, enhancing their transmission performance and suitability for various applications.

Custom Sizes and Specifications: Lenses are available in various diameters, focal lengths, and center thicknesses, allowing for customization to meet specific optical system requirements.

Wide Range of Applications

Imaging and Beam Collimation: Due to their positive focal length, CaF2 plano-convex lenses are well-suited for imaging and beam collimation applications, such as telescopes, collimators, and condenser systems.

Scientific Research and Industrial Applications: Their wide transmission range and high optical performance make them valuable for use in spectroscopic instruments, laser systems, and other optical devices employed in scientific research, industrial manufacturing, and medical diagnosis.

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Calcium Fluoride (CaF2) Lenses

Broad Transmission Range: CaF2 lenses provide excellent transmission from deep UV (0.25μm) to MWIR (7μm), making them versatile for various optical applications.

Low Chromatic Dispersion: Their low chromatic dispersion ensures minimal distortion and high-quality imaging, essential for spectroscopic and imaging systems.

High Damage Threshold: CaF2 lenses can withstand high-intensity laser beams, making them ideal for excimer lasers and other high-power applications.

Low Absorption: Low absorption rates contribute to high efficiency and reduced thermal effects in laser systems.

Group Velocity Dispersion: The lowest GVD among IR materials makes CaF2 lenses suitable for femtosecond IR lasers, ensuring minimal pulse broadening.

Chemical Inertness and Mechanical Strength: CaF2 lenses are chemically inert and possess excellent mechanical strength, ensuring durability and longevity in harsh environments.

Applications: Spectroscopy, MWIR thermal imaging, excimer lasers, femtosecond IR lasers.

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Chalcogenide Glass Lenses and Balls

Broad IR Transmission Range: Chalcogenide glass lenses transmit effectively across a wide spectral range from 3 µm to 12 µm, covering both MWIR and LWIR regions.

Superior Thermal Properties: The low temperature coefficients of the refractive index make these lenses ideal for athermalized optical systems, which maintain focus despite temperature variations.

Cost-Effective: The production cost of Chalcogenide glass is significantly lower than that of many IR crystal materials, such as Germanium, making it an economical alternative.

High-Precision Molding: Chalcogenide glass can be molded with high precision, allowing for the efficient production of complex shapes, including aspheric lenses.

Versatility in Applications: These lenses are suitable for a wide range of applications, including thermal imaging, IR spectroscopy, and military optics.

Applications: Infrared optics, thermal imaging, IR spectroscopy, athermalized lens assemblies.

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GaAs Focusing Lenses for CO2 Lasers
Superior Robustness:
- High hardness and strength, ideal for harsh environments.
- Resistant to damage from dust and abrasive particles.
High Performance:
- Suitable for medium and high-power CO2 lasers.
- Ensures longevity and reliability in demanding applications.
Optical Quality:
- Plano-convex lenses for general use with less stringent requirements for spherical aberration.
- Meniscus lenses engineered to reduce diffraction and aberration, achieving a minimal beam-spot diameter.
Custom Design Services:
- Tailored designs for optimal optical performance.
- Meniscus-shaped GaAs lenses can be customized for specific needs.
Applications: CO2 Laser Processing, High-Power Laser Systems, Precision Optics, etc.
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Germanium (Ge) Lenses

Thermal Imaging: Used in thermal cameras and imaging systems for security, surveillance, and industrial inspections.

IR Spectroscopy: Essential for spectroscopic instruments used in chemical analysis and material characterization.

CO₂ Laser Optics: Commonly used in high-power CO₂ laser systems due to their excellent transmission at 10.6 µm.

Night Vision Systems: Integrated into night vision devices to enhance infrared sensitivity and image clarity.

Defense and Security Optics: Applied in various military and security equipment for infrared detection and imaging.

Applications: Thermal imaging, IR spectroscopy, CO₂ laser optics, night vision systems, defense and security optics.

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Half-Ball Lenses

Compact Design:

The half-ball shape, with one flat surface, allows for easy integration and mounting in space-constrained environments. This compactness not only saves space but also contributes to potentially reduced production costs.

Versatility:

Half-ball lenses can be interchanged with full ball lenses depending on the specific requirements of an application. This versatility makes them suitable for a wide range of optical systems.

They can be manufactured from various optical materials, including BK7, fused silica, sapphire, etc., each offering unique optical properties and performance characteristics.

High Optical Quality:

Precision manufacturing processes ensure that half-ball lenses achieve excellent surface accuracy and low roughness, critical for high-quality optical performance.

Kingwin Optics can achieve surface quality ratings as low as 20/10 Ra1.2nm, indicating a highly polished surface.

Uniform Illumination and Focusing:

Like full ball lenses, half-ball lenses can focus or collimate light, depending on the geometry of the input source, providing uniform illumination and focusing capabilities.

Customizability:

Kingwin Optics often offer a range of diameters (from 0.25mm to 200mm or more) and can customize lenses to meet specific application requirements, including surface coatings and dimensional tolerances.

Applications: Fiber Optic Communication, Miniature Optics,Scientific Research and Industrial Inspection, etc.

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LWIR Athermalized Lenses for Thermal Imaging Camera

Focus Range: 4.3mm to 100mm

Temperature Range: -40℃ to +60℃

Compact and Lightweight: Designed without additional lenses for thermal compensation.

Robust Construction: Durable and suitable for harsh environmental conditions.

High Optical Performance: Maintains stable focus and image quality over varying temperatures.

Applications: Surveillance and Security, Industrial Inspection, Search and Rescue, Military and Defense, etc.

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LWIR Dual FOV Lenses for Thermal Imaging Camera
Compactness and Flexibility: Designed for various detectors in thermal cameras.

Sealing Grade: Anodized aluminum housing with IP67 rating, ensuring dust-tight and waterproof performance.

Optical Design: Incorporation of aspheric and diffractive optical elements to minimize chromatic aberrations.

Focus Mechanisms:
- Manual Focus: Allows users to adjust the focus manually.
- Motorized Focus: Enables remote adjustment of focus for convenience and safety.
Custom Designs: Other designs for achieving dual FOV can be arranged upon request.

DLC Coating: Diamond-like carbon (DLC) coating on the lens front can be arranged for enhanced protection of the equipment.

Applications: Security and Surveillance, Industrial Inspection, Military and Defense, etc.
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LWIR Single FOV Lenses for Thermal Imaging Camera
Focal Length Range: From 4.8mm to 300mm, covering a broad spectrum of applications.

Compatibility: Fit for uncooled FPA detectors of various resolutions.

Design Variants:
- Manual Focus Lenses: Allow manual adjustment of the focal length for precise focus control.
- Motorized Lenses: Enable remote adjustment of the focal length for user convenience.
- Fixed Focal Length Lenses: Provide a truly fixed focal length for applications requiring absolute stability.
Applications: Security and Surveillance, Industrial Inspection, Military and Defense, etc.
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LWIR Zoom Lenses for Thermal Imaging Camera

Maximum Zoom Ratio: Up to 13X, providing a significant range of focal lengths.

Focal Length Range: From wide-angle to a maximum telephoto focal length of 400mm.

Durability: Diamond-like carbon (DLC) coatings on the front lens and tight sealings for enhanced durability.

Zooming Mechanisms: (1)Manual Zooming: Allows users to adjust the zoom manually. (2)Motorized Zooming: Enables remote control of the zoom function.

Microscope IR Imaging: Zoom lenses specifically designed for microscope IR imaging are also available.

Custom Solutions: Custom LWIR zoom lenses can be designed and manufactured to meet specific requirements.

Applications: Security and Surveillance, Military and Defense, Industrial Inspection, etc.

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Meniscus Lenses

Positive Focal Length: Biconvex lenses have positive focal lengths, making them ideal for converging collimated light to a single point.

Versatile Applications: These lenses are highly versatile and can be used in a wide range of applications, including modulation and focusing of laser beams and imaging instruments.

Optimal for Specific Conditions: Biconvex lenses are particularly recommended when the absolute finite conjugate ratio is equal to or close to 1:1, minimizing spherical, coma, and distortion.

Customizable Materials: Kingwin Optics offers biconvex lenses made from various materials such as Fused Silica, BK7/N-BK7, BaF2, CaF2, MgF2, Ge, ZnSe, Sapphire, catering to diverse needs.

Broad Spectrum Compatibility: The working wavelengths of these lenses span the UV to IR spectrum, ensuring compatibility with a wide range of optical systems.

Custom Coating Options: With options like uncoated substrates, Broadband Anti-reflection (BBAR) coatings, V-coating, and MgF2 AR coatings, customers can choose the coating that best suits their requirements.

Tailored Specifications: Diameters, focal lengths, and the f/number of the biconvex lenses can be customized according to specific requests, ensuring optimal performance for each application.

High Precision Option: The surface irregularities of the lenses can be the conventional λ/4 or λ/8 if higher precision is required, providing flexibility for precision-critical applications.

Applications: Laser Beam Modulation and Focusing, Imaging Instruments, Optical Systems with Specific Conjugate Ratios, Scientific Research and Industrial Applications, etc.

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