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Why glasses slide down nose?

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Why glasses slide down nose?
Latest company news about Why glasses slide down nose?

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

Use:

Spectral Frame Torsion Tester is suit for testing Bluetooth Audio Sunglasses

Product Introduction

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.

Testing Standard:

The leg torsion tester for glasses is based on GB/14214-2003 "General Requirements and Test

Methods for Glasses Frames" and ISO12870:1997.

Technical parameters:

Torsion angle: -90~90 degrees

Turning speed :50rpm (adjustable)

Monitor PLC control: touch screen operation

Volume: 550x470x470mm

Weight :50kg

Power supply: 220V 5A

 

If you interested and want to know more product information, please refer to:

https://www.labtesting-equipment.com/sale-26466447-glasses-frame-torsion-tester.html

Catalogue -SL-605 Spectral Frame Torsion Tester.pd...

 

Bose Frames Tenor

 

Do Bose Frames come in different sizes?
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The Frames have the following dimensions: -Frames Alto: (Larger fit rectangular lens) Lens width 52mm - Bridge width (DBL) 18mm - Temple length 162mm. -Frames Rondo: (Smaller fit round lens) Lens width 49.5mm - Bridge width (DBL) 15.5mm - Temple length 154mm.
Are Bluetooth sunglasses good?
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On an average scale, bone conduction glasses / headphones do a better job reducing sound leakage than non-bone conduction Bluetooth sunglasses / headphones. When it comes to sound quality, non-bone conduction Bluetooth sunglasses / headphones are the winners, at least most of the time.
What do audio sunglasses do?
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They're able to listen to music or a podcast without anyone noticing. Thanks to the angle of the speakers, you'll hear lifelike sound you'd never expect from sunglasses, while others around you hear practically nothing — even if they're sitting or standing pretty close to you.
 
 

 

Pub Time : 2022-04-16 15:32:17 >> News list
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