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    Glasses inspection

    About Wenzhou Eyeglass Laboratory
    Wenzhou glasses laboratory is divided into optical laboratory, mechanical laboratory, ultraviolet aging laboratory and data storage room, office area, conference room and so on. The instrument is fully equipped and covers the testing of frames, mirrors, sunglasses and lenses.

    The main optical equipments : ultraviolet spectrophotometer, flat power meter, optical haze tester and anti-UV aging tester , etc.

    The main mechanical equipments : lens Intensity Tester, nose beam deformation tester, glasses flame retardant tester and frame sweat tester, glasses frame fatigue tester, etc.

    Testing products:


    Glass optical lensesPhotochromic lensesPolarized lenses

    assembled spectacles

    Reading glasses


    Uncut lenssingle-vision lensProgressive lens

    Spectacle frames

    metal frame, plastic frame

    Testing standard:
    The Penny test can provide professional testing services according to national sunglasses related laws, standards and specifications, and provide customers with timely and accurate countermeasures and testing solutions based on constantly updated standards. The following can be exemplified according to the testing standards (including but not limited to):
    National standards《National general safety technical code for spectacles lenses products》

    Glasses industry standard

    American National Standard
    ANSI Z80.3-2015
    ISO 12312 -1-2013+A1-2015
    ISO 12311-2013
    ISO 12870-2016

    Australian Standard
    AS NZS 1067.1-2016
    AS NZS 1067.2-2016

    Testing items:

    Physical properties

    FlammabilityLens clamping forceendurance testtensile strengthbinding force of cladding materialabrasion resistanceImpact resistanceresistant to corrosion; slushingNose beam deformation, etc.

    Optical performance

    Transmittance and Type of lenstransmittanceDriving performancewide-angle laser light scattererLuminous transmittancePolarimetric performancePolarization angleUV transmittanceResistance to Radiation

    Dimensional stability

    High temperature dimensional stability

    Chemical composition analysis

    Phthalic acidpolycyclic aromatic hydrocarbonsorganotin compoundspentachlorophenolbisphenol A, Nickel (Ni) release, etc.