LS108A lens permeability tester One: Overview LS108A test principle is the use of infrared light 850nm, 940nm infrared light and visible light irradiation measured 550nm transparent materials, sensors to detect the incident light intensity, respectively, and three light through transparent materials tested After the light intensity, the transmitted light intensity and incident light intensity ratio is the transmittance, expressed as a percentage. Now smart phones, with light sensor and proximity sensor. Light sensor automatically adjusts the screen brightness can be achieved, such as, proximity sensor capable of sensing distance phone and face to automatically turn off the screen during a call to prevent the face inadvertently screen. Smart phone lenses, generally there are two small holes for the infrared light sensor and proximity sensor penetration. There is also a slightly larger hole for the camera. These two holes on the lens infrared penetration, directly affecting the light sensor and proximity sensor smartphone performance. All this infrared transmittance index, is very important. Main plane and camera holes and light and proximity sensor lens aperture, but also the indicator light transmittance. Two: LS108A parameter 1. Instrument Dimensions: Length Width 180mm × 200mm × height 106mm; 2. Minimum test object size: ￠ 1.5mm 3. Instrument Weight: about 1500 g; 4. Resolution: Measured value <10%, the resolution is 0.1%; 1% of other Range Resolution 5. Accuracy: better than ± 2% (uniform translucent colorless substance), the factory with a standard model to detect than ± 1%; 6. Infrared: 850nm and 940nm two-way test 7. Visible: center wavelength 550nm; 8. Power supply: 9V AC / DC power supply, can also be a portable plug-in lithium battery. Three: Instrument Operating LS108A lens permeability tester measure as follows: 1: Plug in the power, turn the power switch on the tester. First, the instrument self-test and self-calibration, since the calibration is complete, all three displays show the value "100" indicates the transmittance when no analyte was 100%. 2: to be tested was placed in the test position. Three monitors show the analyte infrared 850nm, 940nm infrared and visible light transmittance 550nm wavelength. LS108A phone lens transmittance meter four: 1. Instrument features three test holes have on the bit indicating LED, for testing, mobile phone lenses aligned holes. 2. especially for mobile phone lenses and infrared transmittance of visible light transmittance test; 3. Instrument with real-time dynamic self-calibration function, boot automatically calibrated to 100% transmittance; 4. The minimum size of the test substance ￠ 1.5mm . 5. Stainless steel desktop design, attractive appearance, which will help the measured object is placed and easy to operate. 6. In the stainless steel countertops, a plastic sheet fixed a lens positioned to facilitate the production line of the lens batch testing. Five: Use the steps and precautions 1. Instrument connected to a dedicated power supply, keep the test position is empty, open the instrument switches; 2. The analyte into the test position; 3. Display windows show analyte infrared 850nm, 940nm infrared and visible light transmittance 550nm; 4. When not in use, turn off the power; 5. Boot instrument self-test and self-calibration, test location must be empty or can not complete the self-calibration; 6. Avoid contact with corrosive materials away from the hot and humid environment; 7. When used continuously for a long time, due to the luminous efficiency of LED light source (LED light source temperature, the efficiency drops) reasons, the data may lead to three windows can not be displayed for 100, then turn off the power to the instrument, and since re-POST calibration, does not affect the measurement accuracy and normal use; 8. May occasionally occur without test substance, the display data can not return to 100, the instrument can be shut down immediately restart; Shenzhen Technology Co., Ltd. are the main square and moisture meter, infrared detectors, gas detectors, UV energy meter, light transmittance meter, gloss meter, colorimeter, coating thickness, temperature and humidity instrument, endoscopy, mechanical testing equipment, and other instrumentation Tel: 17704058808 (Wong) 0755-85250503 QQ: 2606415325 Log http: // www.fanghezheng.com Learn more