All kinds of glasses are shattering
On september 5th, the public network zinan went into september, when elementary and secondary schools began school. Journalists found a marked increase in the number of students coming for photocopying at various glasses shops in the city. So, do students qualify for glasses? Recently, the website of the municipal office of quality monitoring published the results of a spot-check on the quality of glasses in jenan city from june to july this year. The journalists learned that of the 117 batches of products produced by 117 enterprises throughout the city that were sampled, 19 batches of products from 19 enterprises were found not to meet the requirements of the relevant standards, which, once purchased by the students, could cause problems in terms of loss of vision, re-image and oscillation. Journalists visited chinan glass market and found that from $90 to $3,200, the price of the same degree lenses was more than 30 times higher。
From $90 to $3,200, the price of the same magnitude lens is 30 times different
In recent days, journalists have learned from the market for glasses near the sanctuary that, since late august, a number of primary and secondary school students have come to see light and mirrors, “sometimes dozens of glasses a day”, according to the owner of a glasses store。
Ms. Liu, who had come to pick out the lenses for her children at this glasses store, said that “it would have cost little to think that glasses were cheap at the market”. Ms. Liu selected a mirror frame for $380 and a pair of blue light-resistant, radiation-resistant non-spherical lenses. “the lenses were not priced. The boss recommended me a national lens of $580. Ms. Liu still finds it expensive, and after several competitions, she spent $320, which is equivalent to a discount of 30 per cent, “it may be cheaper to negotiate”
Journalists went to another glasses store as consumers. The shopkeeper found for journalists a 300-degree french imported lens with a variety of features, including radiation, ultraviolet, blue light and fatigue. The shopkeeper described the high price of $3,200 due to good quality and import lenses, but there was activity and a discount of eight. When the journalist indicated that the price was too high, the shopkeeper immediately stated that there were cheap, $380 national lenses. Journalists compared two lenses and tested their comforts with their eyes, with no apparent discrepancy. After many negotiations, the shopkeeper stated that “the national lenses are at a minimum of $90 and cannot be lower”。
It's called radiation protection from ultraviolet. I don't know how many shopkeepers know
On 1 september, journalists bought glasses as customers at a brand-named glasses store on 10th road, where the clerk selected an imported korean lens for journalists at a price of more than 500. According to the shopkeeper, the lens met the requirements of journalists for radiation protection, uv protection, blue light protection, and fatigue protection. When the journalist asked if it could be completely protected against ultraviolet, the shopkeeper said, in an awkward manner, that he “does not know”。
In response, it has been revealed by industry that only uv-protective glasses currently have a “national marker” and that there are no relevant quality tests for radiation protection. According to the industry, the “radio-resistant glasses” on the market are, in fact, merely a tablet lens and a membrane, which are used to achieve so-called radiation-proof effects. The functional concepts of “radiation-proofing, dizziness-proofing, eye-blindness-proofing, fatigue-proofing” are all suspected of being exaggerated, but there are no production criteria and radiation-proofing is simply a psychological trend for consumers. The lens itself is more important than these fancy concepts. The staff of the guinness testing and measurement court at jenan stated that the problems identified during the inspection included the one-sided deviations in the optical centre level and the vertical mismatches in the optical centre, which, if worn, could cause a number of problems, such as loss of vision, re-film and oscillation, and the reason was related to the failure of processors to comply strictly with standard assembly and testing。
The 10 enterprise product optical centres have an unsatisfactory level of bias: loss of sight
The check-up showed that 10 batches of 10 enterprises, such as the gammy glass shop and the hong bao-jin glass shop, had one-sided deviations from the optical centre。
The staff of the guinan centre for measurement and testing at the glass station stated that the distance of the centre for optical lenses was a key indicator of the suitability of near-sighted glasses, and that if the centre for optical lenses did not have the same level of distance as the pupils, the person to whom the lenses were to be placed would feel blurred, physically deformed, with serious and even dizziness, headaches and vomiting symptoms. Even if the symptoms are not mentioned above, the long-term presence of optical centre-level glasses that do not match the pupil's distance can lead to an oscillation of the eyes and an increase in the near-sightedness of various pathological symptoms. It was explained that the poor quality of optical centres was mainly due to the fact that processors did not comply strictly with standard assembly and testing。
1 batch of mirrors with an axial deviation: can lead to a reflection
During a check-up of the lake mixer glass shop in the lower zone, it was observed that the products of the shop had been miscalculated by the axis. The staff of the guinness testing and measurement court at jenan city described the long-term presence of inappropriate lenses with an axle of pole lenses, which, in addition to being blind, were “repeated” and could not correct the sight, and were prone to loss of sight. For the reasons for the axial deviation of the mirrors, the staff felt that it might be that the enterprise was not careful to determine the direction of the axes when processing the lenses with the lenses, or that the failure of the mirror designers to tighten the lenses when they were grinding the lenses could result in a shift of the lenses and a very poor axis. In addition, failure to test the plant or the laxity of the test cord may result in a deviation of the axis。
5 batch optical centres are not eligible for vertical differences: it is slashable
The check-up also found five batches of optical centres in five enterprises, namely the médecins médecinsistère du méxico and da méxico, to be deficient vertically。
The staff at the glass station at the chinan metrology testing court explained that the vertical difference in the optical centre was at a height different from that of the optical centre of the two lenses, and that the error was more damaging to the eye because of the lack of reconciliation of the eyes in the upper and lower directions. Vertical mismatches in optical centres cause eye-to-eye appearances, loss of balance in eye muscles, visual fatigue, slanting, dizziness and acidity. The main reason for non-conformity is also that processors do not comply strictly with standard assembly and testing。
(jinnan times, etc.)
