TL;DRThis page presents the actual measurement process of the product data through five original test videos - ball drop impact (the SGS report demonstrates the same method), Mohs hardness of 6, initial water drop Angle of 115°, approximately 105° after 10,000 wear-resistant reciprocations, and the record of the Guanfudun (2.5D) flanging process. SGS actual tests and self-tests by brand laboratories are separately marked and not used interchangeably. The original report can be found at
SGS test report verification page。
I. Why Make the test screen Public
A test report provides the conclusion and number, while "how it was tested" can often only be imagined. We filmed these processes: the testing methods, equipment and judgment processes corresponding to each indicator are all in the picture. You can refer toSGS test report verification pageReview each item of the data table one by one.
It should be noted that for all indicators with standard methods (light transmittance, haze, and ball drop impact), we send them to a third party for testing. Indicators (reflectance, water drop Angle, Mohs hardness) that rely on dedicated environments and have no unified methods for the time being are self-tested by brand laboratories and the diameters are truthfully marked. The two types of data are presented separately on all public pages, and the videos on this page are also marked according to this principle.
Two. Five actual test demonstrations
SGS Test Report PL02_CN
Drop ball impact test
A 64g steel ball is freely dropped from a height of 1.2 meters to impact the membrane surface. Observe whether the membrane surface breaks. The conclusion of SGS report SZIN2606001469PL02_CN (2026-06-09) is that the membrane surface is not cracked. This video is a demonstration record of the brand laboratory using the same method.
MethodDrop ball impact test (GB class standard method)
"Conditions64g steel ball · 1.2m free fall
ResultThe membrane surface is not cracked
Data sourceSGS Actual Test of PL02_CN (The video demonstrates the same method)
Self-test in the brand laboratory
Mohs hardness test
The Mohs hardness of the film surface was graded and tested by mineral etching. The Mohs hardness and the commonly used "pencil 9H" in the industry are different testing standards, and their values cannot be directly compared.
GradeMohs scale 6
ReferenceUnder normal circumstances, it can resist minor scratches from daily keys, coins, etc
Data sourceSelf-test in the brand laboratory
Self-test in the brand laboratory
Wear-resistant reciprocating performance test
The membrane surface was subjected to reciprocating friction under a specified load for a total of 10,000 times, and the water drop Angle was remeasured to evaluate the durability of the hydrophobic layer.
"ConditionsReciprocating friction 10,000 times
ResultThe water droplet Angle is approximately 105° (initially 115°).
Data sourceSelf-test in the brand laboratory
Self-test in the brand laboratory
Initial test of water droplet Angle
Measure the contact Angle of water droplets on the membrane surface to reflect the initial state of the oleophobic layer at the factory. The water drop Angle is the initial value at the factory and will gradually decrease with wear and tear during use.
"ConditionsInitial state at the factory
ResultThe initial water droplet Angle is 115°
Data sourceSelf-test in the brand laboratory
Self-test in the brand laboratory
Edge pressing test
Press the edge of Guanfudun (2.5D) for verification, and record the process performance of the 2.5D arc edge and the bonding process. This test is a record of the process verification process and is not used as a public numerical indicator.
ObjectGuanfudun （2.5D）
NatureProcess verification process record
Data sourceBrand laboratory process record
Iii. Overview of Indicators and Standards
Description of caliberSGS's actual measurement has proved that "the result of this sample under this method" is not equal to the guaranteed value of the entire batch. Brand laboratory self-testing relies on a dedicated environment, and different conditions can affect comparability. The two types of data should be labeled separately and not mixed.
Iv. Viewing and Downloading
Each video supports online playback and download. For reference to test footage or to request more process records, please send an email to wow@woowhead.com with the subject "request for test video".
Check the verification page of the SGS test report Go to the data center to download the report PDF
DisclaimerThis page is a demonstration of the product's actual testing process, used to present the testing methods and data sources. The objective optical properties of the product can be detected. The improvement of subjective comfort varies from person to person. This product is not a medical device and does not have the functions of eye protection, relieving visual fatigue or treatment. The complete disclaimer can be found
Technical Page Disclaimer。
