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    CaF2 Double Convex Lens

    A CaF2 Double Convex Lens
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    CaF2 Plano Convex Cylindrical Lens

    CaF2 (Calcium Fluoride) plano-convex cylindrical lenses are specialized optical components manufactured from high-purity calcium fluoride single crystals. Featuring one flat surface and one cylindrical convex surface, these lenses focus or expand light in a single dimension only, offering exceptionally wide broadband transmission from the ultraviolet (UV) through the visible and into the infrared (IR) spectrum with minimal wavefront aberration.

    Technical Applications & Industrial Use Cases Due to their wide transmission window, low refractive index dispersion, and high resistance to laser-induced damage, CaF2 plano-convex cylindrical lenses are essential across precision optical systems:
    • Laser Line Generation: Used to shape point laser sources into uniform line beams for machine vision, laser scanning, and material processing.
    • Anamorphic Beam Shaping: Deployed in optical systems to correct astigmatism or adjust the aspect ratio of diode laser outputs.
    • Thermal Imaging & Spectroscopy: Utilized in multi-spectral optical assemblies, FTIR spectrometers, and infrared detectors operating in the 3 to 5 micrometer infrared band.
    Key Specifications & Performance Advantages
    • Material: High-purity Calcium Fluoride (CaF2) single crystal optimized for broad-band transmission.
    • Design Wavelength: Calibrated for precision performance at 587.6 nm with strict focal length tolerance.
    • Surface Quality: High-precision 60-40 scratch-dig with tight centration tolerance (< 3 arcmin) and protective chamfers.
    • Coating Options: Available uncoated or featuring specialized low-absorption infrared anti-reflective (IR1) coatings (average reflectance < 1.5% across 3 to 5 micrometers) to maximize throughput.
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    Znse Aspheric Lens

    A Zinc Selenide (ZnSe) Aspheric Lens features a specialized surface profile designed to eliminate spherical aberration and minimize optical distortions like astigmatism, providing superior focus and clarity in infrared systems compared to standard spherical lenses. Main Applications of Our ZnSe Aspherical Lens:

    • CO2 Laser Collimation: Functions as a high-efficiency collimator or condenser for high-power infrared light sources.
    • Laser Beam Shaping: Serves as a precision collimator for high-power industrial and medical laser systems.
    • Fiber Optic Coupling: Acts as a high-performance coupling lens to efficiently focus infrared laser beams into optical fibers.
    • Infrared Thermal Imaging: Enhances resolution and image quality in thermal imaging cameras and FLIR systems operating in the MWIR and LWIR spectrums.
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  • Zinc Selenide ZnSe Double Concave Lens optical schematic drawing for CO2 laser beam expansion
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    ZnSe Double Concave Lens

    A Zinc Selenide (ZnSe) Double Concave Lens features two symmetrical inner-curved surfaces designed to diverge incident infrared light, increase focal lengths, and expand laser beams with exceptional wavefront clarity. Engineered from premium CVD laser-grade Zinc Selenide and optimized for a 10.6 µm design wavelength, these negative lenses come standard with our high-efficiency IR2 broadband anti-reflection (BBAR) coating, yielding an average reflectance (R_avg) of less than 1.5% across the 8–12 µm long-wave infrared (LWIR) spectrum.

    Main Applications of Our ZnSe Double Concave Lens:
    • CO2 Laser Beam Expansion: Functions as a highly durable negative component within Galilean beam expanders to safely diverge and enlarge high-power 10.6 µm laser beams before collimation.
    • Optical System Focal Extension: Serves as a precision diverging lens to counteract positive aberrations, minimize spherical distortion, and extend the effective focal length of multi-element IR imaging assemblies.
    • Infrared Imaging & Sensing: Acts as an efficient dispersing lens to widen the field of view for LWIR thermal imaging cameras, FLIR systems, and horizon-scanning optical sensors.
    • Industrial and Medical Laser Shaping: Optimizes beam profiles and energy distribution for precise material processing, micro-machining, and surgical laser systems.
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  • Zinc Selenide ZnSe Double Convex Lens optical schematic diagram for CO2 laser focusing
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    ZnSe Double Convex Lens

    A Zinc Selenide (ZnSe) Double Convex Lens features two symmetrical, outward-curved surfaces engineered to converge incident infrared light, reduce focal lengths, and focus high-power laser beams with exceptional wavefront clarity. Fabricated from premium CVD laser-grade material and optimized for a 10.6 µm design wavelength, these bi-convex positive lenses deliver low bulk absorption and high transmission across the infrared spectrum.

    Applications of Our ZnSe Double Convex Lens:
    • CO2 Laser Focusing & Collimation: Functions as a highly efficient focusing element or beam collimator for high-power CO2 laser cutting, engraving, and welding systems.
    • Laser Beam Shaping: Serves as a precision focusing lens to concentrate infrared light into high-intensity spots for industrial and medical laser procedures.
    • Fiber Optic Coupling: Acts as a high-performance coupling lens to efficiently condense and couple infrared laser outputs directly into optical fibers.
    • Infrared Thermal Imaging: Works as a high-efficiency condenser lens to maximize light gathering and improve resolution in thermal imaging cameras and FLIR sensing systems operating in the MWIR and LWIR bands.
    Download Datasheet for more IR Lens
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