CHANGCHUN BENA OPTICAL PRODUCTS CO., LTD.
CHANGCHUN BENA OPTICAL PRODUCTS CO., LTD.
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Various Types of Ultra-high Precision Optical Components

  • Fast Steering Mirror (FSM)
    Fast Steering Mirror (FSM)
    Fast Steering Mirrors (FSM) in Bena Optics compensate for input tilt errors generated in a laser and beam-de livery-system. Due to the stiffness of Bena Optics material, Light weight and high reflectivity and be able increase the performance of their applications.
  • Galvo Scanning Mirror
    Galvo Scanning Mirror
    SiC mirrors, with high specific stiffness, thermal conductivity, and chemical stability, are crucial for high-performance optical systems. They provide excellent image quality and resolution across a wide spectrum, making them ideal for telescopes and satellites due to their superior environmental adaptability and low thermal expansion.
  • Larger Aperture Aspherical Mirror
    Larger Aperture Aspherical Mirror
    Large-aperture aspheric mirrors are primarily used in advanced fields such as aerospace and astronomy. Bena Optics mainly processes materials like fused silica, Zerodur, and SiC ceramics, with additional lightweighting techniques. The surface accuracy of the mirrors is better than RMS λ/100.
  • Lightweight Service
    Lightweight Service
    With advancements in space optical technology, larger apertures for primary mirrors are essential. Bena Optics specializes in lightweight microcrystalline glass (Zerodur), SiC, and fused quartz. Using CAD optimization and finite element analysis, we achieve minimal deformation and high surface accuracy (0.022λ rms) in ultra-low temperatures (-150℃).
  • Precision Aspherical Lens
    Precision Aspherical Lens
    Aspherical lenses by Bena Optics correct spherical aberrations, reducing component count for compact designs. Utilizing advanced equipment (CCOS, IBF, MRF) and ISO 9001 standards, they ensure high precision and RoHS/REACH compliance. Offering tailored solutions, Bena Optics excels in innovative, high-quality optical components and precise measurement/documentation.
  • Super Smooth and Super High Reflectivity Mirror
    Super Smooth and Super High Reflectivity Mirror
    Ring laser gyroscope components or so-called supermirrors in certain scientific applications require coated optical elements with extremely low losses. These mirrors need to have a reflectivity greater than 99.998% and a total loss of less than 10 ppm.
  • Super-size High Precision Window
    Super-size High Precision Window
    Bena Optics’ ultra-large high-precision windows are primarily processed using large ring polishing machines. Bena Optics currently has the largest ring polishing machine with a diameter of 2 meters, capable of processing large windows with a diameter of around 1 meter while ensuring high surface accuracy. Additionally, various materials can be processed, including fused silica, SiC, and Zerodur.
Optical Components

Superiority of Ultra-high Precision Optical Components

  • Customized structural design, lightweight, and non-standard shapes

  • Ultra-high precision surfaces, RMS ≤ λ/100

  • Ultra-smooth surfaces, roughness better than 1nm

Ultra-high Precision Optical Components FAQs

  • Q. What equipment is used for lightweighting?

    A.

    Large CNC machining centers.

  • Q. Is the aspheric surface processed using molds or grinding methods?

    A.

    Grinding and mechanical polishing are used, with polishing done via CCOS and surface correction by IBF and MRF.

  • Q. How do you overcome the hardness of SiC material?

    A.

    Polishing is done using a ring polishing machine, with extended grinding to ensure a good surface profile for SiC.

  • Q. What coatings can SiC mirrors accept?

    A.

    SiC mirrors primarily accept metal coatings such as Al, Ag, and Au.

  • Q. What is the size range for ultra-high precision optical flats?

    A.

    Ultra-high precision optical surfaces can be processed from Ø50mm to Ø1200mm.

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