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    AI Overview
    Several manufacturers in China produce long pass optical filters with customized cut-on wavelengths, high transmission, and durable coatings for imaging and industrial applications. Key manufacturers include Shandong Yanggu Constant Crystal Optics, Optolong Optics, and Beijing KingKi technology, which offer solutions for fluorescence, machine vision, and scientific research. 
    Top China-based long pass filter manufacturers and suppliers: 
    • Shandong Yanggu Constant Crystal Optics, Inc.: Specializes in custom longpass filters (e.g., 400nm–650nm+), providing tailored solutions for R&D and OEMs using advanced thin-film coating technology.
    • Optolong Optics Co., Ltd.: Produces high-precision interference filters, including longpass and dichroic mirrors designed for fluorescence imaging and astronomy.
    • Beijing KingKi Technology Co., Ltd.: Focuses on long-wave pass filters with high cut-off in the short-wave region and high transmission in the long-wave region, covering UV to IR.
    • Shanghai Optics: Manufactures hard-coated dichroic long pass filters using ion-beam sputtering (IBS) technology for increased durability and performance.
    • Shenzhen Hengdaliyuan Optoelectronics Co., Ltd.: Supplies various long-wavelength pass filters, including custom options.
    • UNI Optics: Offers custom long pass filters suitable for various optical assemblies.
    • Yutai Optics: Provides a variety of filters, including colored glass, longpass, and high-durability hard-coated filters.
    • SXET Glass: Focuses on color glass filters, offering customization without a minimum order quantity (MOQ).
    • Chineselens Optics: Produces edge and dichroic filters (long-pass or short-pass) that allow specific wavelengths through while blocking others. 
    These companies typically offer products for specialized applications, such as fluorescence microscopy, medical diagnostics, and machine vision inspection. 
    • Custom China Long Pass Filter Manufacturer ... - UNI Optics
      * Taurus Series 12MP 1.1'' FA Lens. * Taurus Series 12MP 1.2" FA Lens.
      UNI Optics
    • Optical Filters - shanghai revamp
      Cylindrical Lenses. Spherical Lenses. Optical Prisms. Optical Mirrors. Beamsplitters. Optical Windows. Optical Filters. Colored Gl...
      Shanghai Optics
    • Factory Supply Long-Pass Filter Made in China
      The long-wave pass filter produced by Beijing KingKi technology co. Our Products have high cut-off short-wave region and the high ...
      www.kingkiop.com
    • Your Reliable Optical Filter Manufacturer in China -SXET glass
      Being the best optical filter manufacturer for more than 12 years and counting, you'll benefit a lot by working with us! * We do n...
      www.sxetglass.com
    • Optical Filters Manufacturer In China
      Optical Filters are used for selectively allowing the passage of some wavelengths or blocking all other wavelengths. They have app...
      chineselens.com
    • Filters - Yutai Optics
      Optical Filters are used to selectively transmit or reject a wavelength or range of wavelengths. Yutai Optics offers a variety of ...
      Yutai Optics
    • Top 100 Optical Filter Manufacturers in China (2026) - ensun
      Optolong Optics Co., Ltd specializes in high-precision optical filters, including a diverse range of interference filters such as ...
      ensun
    • Longpass filters Long-wavelength pass filters
      Longpass filters Long-wavelength pass filters - Shenzhen Hengda Liyuan Optoelectronics Co.,Ltd.
      liyuan-optics.com
    • Longpass Optical Filter China
      Shandong Yanggu Constant Crystal Optics, Inc is a professional manufacturer and supplier of high-quality Longpass Optical Filters,
      www.sycco-optics.com
    • Custom China Long Pass Filter Manufacturer ... - UNI Optics
      * Taurus Series 12MP 1.1'' FA Lens. * Taurus Series 12MP 1.2" FA Lens.
      UNI Optics
    • Optical Filters - shanghai revamp
      Cylindrical Lenses. Spherical Lenses. Optical Prisms. Optical Mirrors. Beamsplitters. Optical Windows. Optical Filters. Colored Gl...
      Shanghai Optics
    • Factory Supply Long-Pass Filter Made in China
      The long-wave pass filter produced by Beijing KingKi technology co. Our Products have high cut-off short-wave region and the high ...
      www.kingkiop.com
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    Custom China Long Pass Filter Manufacturer ...


    UNI Optics
    https://www.uni-optics.com › china-long-pass-filter-man...
    UNI Optics
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    UNI Optics Co.,Ltd specializes in China long pass filter manufacturer design and assembly for many years. We have strong capability to produce custom-made ...

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    ensun
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