Why do We Test Mobile Phone Ink Hole IR Transmittance?
LS108Aand LS108D lens transmission meters are professional for the IR ink hole light transmittance and IR transmission test of mobile phone glass lens (cell phone cover) / touch screen lens / medical lenses and other optical glass lens development, as well as the test cell phone lens on the light sensor hole and distance sensor hole.
Take out and have a carefully look at our mobile phone, may observe there are two holes in front of the phone touch screen, the two holes through ink processing, it is difficult to see clearly, the light transmittance is relatively low, but the high transmittance of infrared. its working principle use the phone's internal infrared light sources, transmit through the ink glass, reject back if touched human's skin and the receiver detected certain infrared intensity.
Mobile phone lens printing ink usually use in the mobile phone lens manufacturers , Glass industry to use ink for various strengthening white sheet material processing, including organic glass acrylic, PC, PET/ composite materials.
This kind of lens ink is a kind of low temperature baking environmentally friendly solvent ink, so good adhesion, infrared transmission rate is strong. High cover rate, OD value reached more than 4, May pass the LED electric light transmittance test, no transmitting, pinhole and trachoma and other undesirable phenomena.
With the use of smart phones more and more widely, the number of touch screen printing ink production is also increasing, mobile phone manufacturers to produce high-quality ink mobile phone lens, the LS108D lens transmission meter is recommended to test the optical performance of the lens.