More and more people have vision problem that need glasses to help them.
However,wearing glasses is also a little troublesome.For example: the glasses always slide down to nose.
But why? There are two reasons:
1.The frame legs do not sag heavily, all the center of gravity is on the nose, the temples are not stressed, and they will slide down after a long time.
2.It’s the nose that can’t hold the glasses and keeps falling down.
According to these reasons,we need to use the Glasses Frame Torsion Tester to test the degree of wear resistance of the glasses frame.
Spectral Frame Torsion Tester
Spectral Frame Torsion Tester is suit for testing Bluetooth Audio Sunglasses
Technical Requirements of Ophthalmic Optics-Glasses Frame-Basic Requirements and Test
Methods The upper part of this instrument is a sample clamp, and the glasses frame is clamped at
both ends of the clamp for torsion test. The eccentric device is driven by the motor to perform
angular deflection and twisting. After the number of twists required by design. Stop the operation of
the instrument, take off the sample, observe its wear degree, evaluate its folding resistance, and
provide reference data for material selection.
The leg torsion tester for glasses is based on GB/14214-2003 "General Requirements and Test
Methods for Glasses Frames" and ISO12870:1997.
Torsion angle: -90~90 degrees
Turning speed :50rpm (adjustable)
Monitor PLC control: touch screen operation
Power supply: 220V 5A
If you interested and want to know more product information, please refer to:
Contact Person: Ms. Ivy Xie