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    About 242,000 results (0.23s) 
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    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    Positive meniscus lenses are convex-concave lenses with a thicker center, designed to converge light, reduce spherical aberration, and shorten the focal length of optical systems. Ideal for experimental, imaging, and laser applications (350 nm – 2.2
    μmu
    𝜇
    m range), they are commonly available in N-BK7 or UV-fused silica, often with AR coatings to boost transmission and reduce ghost images. 
    Key Characteristics & Applications 
    • Performance: These lenses minimize third-order spherical aberration and reduce spot sizes in focusing applications.
    • Orientation: To achieve the best performance (lowest aberration) when focusing a collimated beam, the convex surface should face the source.
    • System Enhancement: Often used to decrease the overall focal length and increase the numerical aperture (NA) of an existing assembly.
    • Substrates: Available in N-BK7, UV-Fused Silica,
      CaF2cap C a cap F sub 2
      𝐶𝑎𝐹2
      , and
      ZnSecap Z n cap S e
      𝑍𝑛𝑆𝑒
       (for infrared).       
    Common Specifications & Availability 
    • Size Options: Standard diameters often include Ø1" (25.4 mm) and Ø2" (50.8 mm).
    • Quality: High-performance lenses often feature a surface quality of 40-20 scratch-dig, with typical surface irregularity of
      𝜆
      /4
       or better.
    • Coatings: Uncoated, UV-AR (350-700 nm), or IR coatings are common for enhancing performance in specific ranges. 
    Key Suppliers for Experimental Needs 
    • Thorlabs: Offers high-volume options including N-BK7, UV-fused silica, and
      CaF2cap C a cap F sub 2
      𝐶𝑎𝐹2
       with various coatings.
    • Edmund Optics: Stocks standard positive meniscus lenses designed to reduce spot size.
    • Uni-Optics: Specializes in customized, large-aperture lenses (up to F2.4) suitable for 2K-4K line scan cameras.
    • Heli Optical Systems: Provides customized meniscus lenses based on application requirements. 
    For DIY or hobbyist experiments, older camera lenses (such as those from 127 film folders) or closeup filters can act as affordable, readily available meniscus lenses. 
    • Custom Experimental Quality Positive Meniscus Lenses ...
      · Developed for 30mm big frame sensor. · Large Aperture, up to F2.4. · High relative illumination. · Compatible for 2K-4K line sca...
      UNI Optics
    • UV Fused Silica Positive Meniscus Lenses, UV AR-Coated - Thorlabs
      Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of a UV AR coa...
      Thorlabs
    • Custom Meniscus Lenses - Knight Optical
      The choice between concave and convex depends on the specific needs of the optical system, such as whether light rays need to be s...
      Knight Optical
    • N-BK7 Positive Meniscus Lenses - Thorlabs
      Features * Ø1" Positive Meniscus Lenses Fabricated from N-BK7 Glass. * Available Uncoated or with One of Three AR Coatings: Uncoat...
      Thorlabs
    • Positive Meniscus Lenses - Thorlabs
      Thorlabs' N-BK7, UV-fused silica, CaF2, and ZnSe positive meniscus lenses are used to decrease the focal length of another lens wh...
      Thorlabs
    • Positive Meniscus Lenses | Edmund Optics
      Positive Meniscus Lens Designs. Minimize Spherical Aberration and Reduce Spot Sizes. 350 – 2,200nm Wavelength Range. Positive Meni...
      Edmund Optics
    • Meniscus Lenses - Heli Optical Systems
      Meniscus Lens are identified by having one convex surface and one concave surface. Within this, Meniscus lens are categorized as P...
      Heli Optical Systems
    • Meniscus lenses - MFlenses forum
      luisalegria wrote: Sources for meniscus lenses are various. But none are hard to get. Some desirable ones are on old Kodak folders...
      MFlenses forum
    • Thorlabs Positive Meniscus Lens - LE4173 - MEETOPTICS
      May 7, 2026 — Product Line. Thorlabs' UV-Grade Fused Silica Positive Meniscus Lenses offer high transmission from 245 - 400 nm, with options for...
      MEETOPTICS
    • Custom Experimental Quality Positive Meniscus Lenses ...
      · Developed for 30mm big frame sensor. · Large Aperture, up to F2.4. · High relative illumination. · Compatible for 2K-4K line sca...
      UNI Optics
    • UV Fused Silica Positive Meniscus Lenses, UV AR-Coated - Thorlabs
      Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of a UV AR coa...
      Thorlabs
    • Custom Meniscus Lenses - Knight Optical
      The choice between concave and convex depends on the specific needs of the optical system, such as whether light rays need to be s...
      Knight Optical
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    My Ad Center

    Web results

    Experimental Quality Positive Meniscus Lenses


    HG Optronics.,INC.
    https://www.hgoptronics.com › experimental-quality-po...
    HG Optronics.,INC.
    https://www.hgoptronics.com › experimental-quality-po...
    The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally ...Read more

    Custom Experimental Quality Positive Meniscus Lenses ...


    UNI Optics
    https://www.uni-optics.com › experimental-quality-positi...
    UNI Optics
    https://www.uni-optics.com › experimental-quality-positi...
    Product Features: · Excellent edge sharpness and uniform illumination · Designed to resist strong light interference, adaptable to complex lighting ...Read more

    Positive Meniscus Lenses


    Thorlabs
    https://www.thorlabs.com › positive-meniscus-lenses
    Thorlabs
    https://www.thorlabs.com › positive-meniscus-lenses
    These lenses are commonly used to achieve tighter beam focusing when paired with another positive lens. For more information on these substrates, please visit ...Read more
    Missing: Experimental ‎Quality
    People also ask
    What are the different types of meniscus lenses?
    There are two types of meniscus lenses: positive meniscus lenses and negative meniscus lenses. Positive lenses are used in applications that require small focal number, which is less than 2.5. For focal numbers ranging between 2.5 and 10, meniscus lens can minimize spot size and enhance image quality.Sep 19, 2014

    Meniscus Lens and Their Application - AZoOptics


    AZoOptics
    https://www.azooptics.com › Article
    AZoOptics
    https://www.azooptics.com › Article
    What is a positive meniscus?
    Positive meniscus lens is a convex-concave lens thicker at the center than at the edges. It is used to minimize spherical aberration. When used in combination with another lens, it will shorten the focal length, and increase the NA of system.

    Meniscus Lenses - Holmarc


    Holmarc
    https://www.holmarc.com › meniscus_lenses
    Holmarc
    https://www.holmarc.com › meniscus_lenses
    What is the difference between positive and negative meniscus lenses?
    Positive and negative meniscus lenses

    When looking at the lens, a positive meniscus lens is thicker in the center and thinner at the edges. A negative lens is the opposite and thinner in the center of the lens while thicker at the surrounding edge. The difference comes from addressing varying spherical aberrations.

    Guide to Optical Lenses: The Science Behind How They Work


    IOT Lenses
    https://iotlenses.com › blog › guide-to-optical-lenses
    IOT Lenses
    https://iotlenses.com › blog › guide-to-optical-lenses
    What are meniscus lenses used for?
    Advantages of Using Meniscus Lenses in Infrared Applications
    While meniscus lenses are primarily used for focusing to small spot sizes or collimation applications, plano convex lenses often offer a superior price-to performance ratio. There are scenarios, though, where meniscus lenses provide significantly superior performance at only a moderate increase in price.

    Advantages of Using Meniscus Lenses in Infrared Applications


    Edmund Optics
    https://www.edmundoptics.com › optics › advantages-of-...
    Edmund Optics
    https://www.edmundoptics.com › optics › advantages-of-...

    Web results

    Positive Meniscus Lenses


    Edmund Optics
    https://www.edmundoptics.com › meniscus-lenses
    Edmund Optics
    https://www.edmundoptics.com › meniscus-lenses
    Positive Meniscus Lenses are convex-concave lenses manufactured from N-BK7 optical glass and are designed to minimize spherical aberration and reduce spot ...Read more
    Missing: Experimental ‎| Show results with: Experimental

    Scholarly articles for Experimental Quality Positive Meniscus Lenses

    … artificial compound eyes with negative meniscus … - ‎Luo - Cited by 21
    Determining the imaging quality of intraocular lenses - ‎Norrby - Cited by 65
    Inverted meniscus intraocular lens as a better optical … - ‎Artal - Cited by 18

    Web results

    Thorlabs Positive Meniscus Lens - LE1418-C


    MEETOPTICS
    https://www.meetoptics.com › ... › Spherical Lenses
    MEETOPTICS
    https://www.meetoptics.com › ... › Spherical Lenses
    These Positive Meniscus Lenses, fabricated from RoHS-compliant BK7 glass, are available uncoated or with broadband antireflection coatings. Designed to minimize ...Read more
    Missing: Experimental ‎| Show results with: Experimental

    Custom Meniscus Lenses | Concave and Convex ...


    Knight Optical
    https://www.knightoptical.com › Custom › Lenses
    Knight Optical
    https://www.knightoptical.com › Custom › Lenses
    The positive meniscus lens, part of our bespoke range, is crafted from high-index materials and adorned with anti-reflective (AR) coatings to boost performance, ...Read more

    Meniscus Lenses Selection Guide: Types, Features, ...


    GlobalSpec
    https://www.globalspec.com › optical_components › m...
    GlobalSpec
    https://www.globalspec.com › optical_components › m...
    Meniscus lenses are optical lenses that produce a smaller focal point and fewer aberrations than a standard plano-convex lens.Read more
    Missing: Experimental ‎| Show results with: Experimental

    Meniscus Positive Lenses (Convex-Concave CXCV Lens)


    Alien Photonics
    https://www.alienphotonics.com › Lenses
    Alien Photonics
    https://www.alienphotonics.com › Lenses
    Meniscus Positive Lenses combine convex and concave surfaces to reduce spherical aberration and improves beam focus in advanced optical systems.
    €35.00
    Missing: Experimental ‎| Show results with: Experimental

    Meniscus lenses - MFlenses forum


    MFlenses forum
    https://forum.mflenses.com › meniscus-lenses-t63197,sta...
    MFlenses forum
    https://forum.mflenses.com › meniscus-lenses-t63197,sta...
    Dec 10, 2013 — Use them wide open for super soft or if you make a stop for it it would sharpen up. This is a very easy field to experiment in.Read more

    Meniscus Lens and Their Application


    AZoOptics
    https://www.azooptics.com › Article
    AZoOptics
    https://www.azooptics.com › Article
    Sep 19, 2014 — Positive lenses are used in applications that require small focal number, which is less than 2.5. For focal numbers ranging between 2.5 and 10, ...Read more
    People also search for
    Experimental quality positive meniscus lenses price
    Negative meniscus lens
    Positive meniscus lens uses
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    Positive meniscus water
    Thorlabs meniscus lens
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