NEWS
The quality of glasses products is worrying, and they use window glass lenses
- Categories:NEWS
- Author:
- Origin:
- Time of issue:2020-10-30 16:15
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(Summary description)
This time, the quality supervision department of our province has conducted random inspections on the quality of glasses products including lenses, spectacle frames, myopia, sunglasses, and reading glasses. A total of 62 batches were randomly checked, 54 batches were qualified and 8 batches were unqualified. , The sampling pass rate is 87.1%, which is lower than the national target of "over 90% pass rate of spectacles in large and medium-sized cities nationwide" The main problems of glasses products are: the top power of the spherical lens, transmission characteristics, lens size and thickness are not qualified. The apex power and transmission characteristics of the spherical lens are unqualified. The measured value of the apex power of the lens exceeds the allowable range of the nominal value. The difference between the apex powers of the two lenses is too large, the transmittance is low, and the lens is thick; the lens size and thickness The disqualification is because the edge of the lens is not of equal thickness, and the wearer will have visual displacement, dizziness and nausea.
The quality of glasses products is worrying, and they use window glass lenses
(Summary description)
This time, the quality supervision department of our province has conducted random inspections on the quality of glasses products including lenses, spectacle frames, myopia, sunglasses, and reading glasses. A total of 62 batches were randomly checked, 54 batches were qualified and 8 batches were unqualified. , The sampling pass rate is 87.1%, which is lower than the national target of "over 90% pass rate of spectacles in large and medium-sized cities nationwide" The main problems of glasses products are: the top power of the spherical lens, transmission characteristics, lens size and thickness are not qualified. The apex power and transmission characteristics of the spherical lens are unqualified. The measured value of the apex power of the lens exceeds the allowable range of the nominal value. The difference between the apex powers of the two lenses is too large, the transmittance is low, and the lens is thick; the lens size and thickness The disqualification is because the edge of the lens is not of equal thickness, and the wearer will have visual displacement, dizziness and nausea.
- Categories:NEWS
- Author:
- Origin:
- Time of issue:2020-10-30 16:15
- Views:
This time, the quality supervision department of our province has conducted random inspections on the quality of glasses products including lenses, spectacle frames, myopia, sunglasses, and reading glasses. A total of 62 batches were randomly checked, 54 batches were qualified and 8 batches were unqualified. , The sampling pass rate is 87.1%, which is lower than the national target of "over 90% pass rate of spectacles in large and medium-sized cities nationwide" The main problems of glasses products are: the top power of the spherical lens, transmission characteristics, lens size and thickness are not qualified. The apex power and transmission characteristics of the spherical lens are unqualified. The measured value of the apex power of the lens exceeds the allowable range of the nominal value. The difference between the apex powers of the two lenses is too large, the transmittance is low, and the lens is thick; the lens size and thickness The disqualification is because the edge of the lens is not of equal thickness, and the wearer will have visual displacement, dizziness and nausea.
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