Measurement light path for transmittance and reflectance of building glass

Abstract

The invention discloses a measurement light path for transmittance and reflectance of building glass. The measurement light path comprises a glass sample support arranged in a sample chamber, and a transmission inlet for collecting transmission light of a glass sample and a reflected light inlet for collecting reflected light of the glass sample are mounted on two sides of the glass sample supportrespectively; a rotatable transmission light shielding sheet is arranged at the transmission light inlet, and a rotatable reflected light shielding sheet is arranged at the reflected light inlet; thetransmission light inlet and the reflected light inlet are connected through a detector through optical fibers. The measurement light path can measure the transmittance and reflectance of glass simultaneously, the light path design is simplified, and the testing efficiency is improved.

Description

technical field [0001] The invention relates to a measuring optical path of architectural glass, in particular to a measuring optical path for transmittance and reflectance of architectural glass. Background technique [0002] In recent years, the country has continuously put forward higher requirements for energy conservation in projects. Building energy conservation has been regulated from the beginning of engineering design. Energy conservation of doors and windows is an important part of building energy conservation. The shading performance of door and window glass is tested. The shading performance of doors and windows is largely related to the shading coefficient of door and window glass. The architectural design and acceptance specifications in various regions have gradually incorporated the shading coefficient of glass into the design and acceptance indicators. The determination of the shading coefficient of glass is mainly by measuring the transmission and reflecti...

AI Technical Summary

Problems solved by technology

Since most spectrophotometers can only cover the visible light range, and there is no special transflective equipment for measuring glass samples, this greatly affects the speed of the development of this testing project in national testing units.

[0003] At present, optical testing equipment including imported equipment, when measuring the reflectivity of glass, because the detector is located on one side of the sample chamber, it cannot collect projected and reflected light at the same time. The reflective lens setting projects the test light into the detector, resulting in the need to replace different sample holders during the test, and the optical path design is complicated, the equipment production debugging and post-maintenance efficiency is low, and the cost is high

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