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Mar 15,2024
What's with the green stuff in the glasses?
The green stuff on the glasses may be patina, commonly known as copper green, in the form of grass-green clusters or dark green powder. Ordinary metal spectacles, the nosepiece connecting part is made of copper,
How many types of lenses are there in eyeglasses
Lens types are broadly divided into five categories: anti-reflective protective lenses, coloured lenses, colour coated lenses, polarised lenses and colour changing lenses. According to the type of focus
What's the difference between presbyopia and myopia?
Presbyopic and nearsighted glasses have different principles, adapt to different groups, different application scenarios and other differences.
Aug 07,2020
Analysis of developments in the micro and nano optics manufacturing industry
微纳光学制造行业发展情况分析
May 05,2019
Analysis of the current state of the optical head industry
Dec 23,2016
Focus Optical Wenzhou Exhibition
2019富视光学温州展