torsion testing machine

Functions and working principles of eyeglasses frame torsion testing machine

2022-12-16

An eyeglasses frame torsion testing machine is a device used to test the torsional (twisting) properties of eyeglass frames. The machine simulates the way a person's eyes view the eyeglass frames and measures the amount of torsion present. The eyeglass frame is placed on the testing machine's platform and viewed through the machine's eyepiece. The eyepiece displays the eyeglass frame's torsional properties, and the operator can determine if the eyeglass frame meets the torsional requirements by observing the shape of the frame in the eyepiece.

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What tests are required to test whether a pair of glasses is qualified?

2022-12-13

The Quality Inspection Center for Eyewear Products will use eyeglasses testing equipment to test all of the prescription eyewear, sunglasses, presbyopes and frames, personal protective eyewear, swimming goggles and other products on the market, covering all national standards and some international standards related to the inspection of eyewear products, such as top focus, refractive index, abrasion resistance, light transmission, harmful elements, adhesion, and folding resistance of frames.

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