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    Optical Glass
    Colourless Optical Glass
    Colourless Optical Glass

    The colourless optical glass covers more than 200 types which including environmentally-friendly colourless optical glass, low softening point optical glass, non-eco optical glass and radiation resistant glass, etc. 

    Colourless optical glass is widely used in consumer electronics such as camera, mobile phone, projector, CCTV camera. It is also widely used in astronomy, biology, medicine and aerospace, etc.


    CDGM colourless optical glass is available in the form of glass blanks, pressed blanks, cut blanks,optical preforms as well as optical components.

    The specifications are shown in the following table:

    Glass blanks

    Supply forms:

    Strips,blocks

    Dimensions:

    Strips360mm×(80~160mm×(8~60mm

    Blocksupon request of customers

    Pressed blanks

    Lens:

    OD(outer diameter): Ф7mm~Ф350mm

    CT(center thickness): 1.1mm~50mm

    Rods:

    OD(outer diameter): Ф3.2mm~Ф10mm

    Length150mm

    Pressed plates:

    Length40mm~80mm

    Thickness: 4mm~10mm

    Special-shaped products:

    Side length or diameter: 5mm~180mm

    upon request of customers

    Cut blanks

    Round plates:

    OD(outer diameter): Ф2.5mm~Ф150mm

    CT (center thickness): 0.5mm~50mm

    Cut prisms

    Min edge length5mm

    Max edge length150mm

    Optical preforms

    Dimensions:

    Lens: OD(outer diameter): Ф2mm~Ф35mm

    CT (center thickness): 0.4mm~25mm

    Precision gob

    Shapebiconvex oval

    Volume:(100~650)mm3

    Weight:(300~1830)mg

    Weight tolerance±(525)mg

    Optical components

    Supply forms:

    Spherical lens, aspherical lens, customized special-shaped products

    Notes:The supply forms and dimensions depend on glass type. Please contact us.

      The allowable tolerance of nd and νd  is generally controlled within:

    nd:±30×10-5 

    vd:±0.5%

      As requested, the allowable tolerance of nd and νd could be controlled in ±20×10-5 and ±0.3% respectively. For fine anneal glass types of  H-K9L、H-K9LGT、H-BaK7、H-BaK7GT, the tolerance of nd and νd could be controlled in ±10×10-5 and ±0.2%. Please contact us for other specifications.


    Product pictures
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