A thermal reflectance detection device for coated glass film

Abstract

The invention relates to the technical field of reflectivity detection, in particular to a coated glass film heat reflectivity detection device. The device comprises a light source and two integrating spheres, light emitted by the light source is split into two beams through a beam splitter, and the two beams are sent into a hollow connection tube. Incidence ports of the two integrating spheres are connected with two ends of the hollow connection tube respectively, and each integrating sphere is provided with a light outlet. One of the beams attenuates after penetrating sample coated glass and is emitted outwards through the corresponding light outlet to form detection light, and the other beam is subjected to diffusion reflection in the corresponding integrating sphere and emitted outwards from the corresponding light outlet to form pumping light. Emitted light of compensatory light sources are compensated and amplified by the detection light and the pumping light, then received by a photovoltaic conversion circuit of a detector and sent to a lock-in amplifier connected with the detector to realize calculation of voltage differences of voltage signals; the calculated voltage differences of the voltage signals are sent to an upper computer through the lock-in amplifier connected with the upper computer to realize analysis and calculation. The coated glass film heat reflectivity detection device has advantages of convenience in detection, high accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of reflectivity detection, in particular to a thermal reflectivity detection device for a coated glass film. Background technique [0002] The transparent conductivity of ITO coated conductive glass and its good electrode processing performance, so it has been developed rapidly as a transparent electrode for liquid crystal displays, such as large-scale color TVs, calculators, computer monitors, liquid crystals and electronic light-emitting screens for high-definition Wait. If the reflectivity is high, there will be a shadow phenomenon of the ITO pattern, which will seriously affect the appearance and product performance of the touch screen. Therefore, it is necessary to test the reflectance of the produced ITO coated conductive glass, and judge whether the reflectance (value) of the produced product is qualified or within a reasonable range according to the test results. Once unqualified, it is convenient t...

AI Technical Summary

Problems solved by technology

If the reflectivity is high, there will be ITO pattern background phenomenon, which will seriously affect the appearance and product performance of the touch screen.

Images