Quartz windows are usually cut and ground from quartz glass, and their silica content can reach more than 99.99%. The hardness is seven grades, and it has the characteristics of high temperature resistance, low thermal expansion coefficient, thermal shock resistance and good electrical insulation performance. The visible light transmittance of the quartz window is over 85%. Quartz glass can be divided into two categories, fused silica glass and synthetic silica glass, from the large production range. Heat resistance, light transmittance, electrical insulation, and chemical stability are all very good. Coating Window,Protective Windows,Wedge Window,Uv Fused Silica Window Bohr Optics Co.,Ltd , https://www.bohr-optics.com
The reporter learned from the Municipal Comprehensive Rehabilitation Office that Harbin City has implemented lighting renovation projects around the major winter games venues, main street roads, bridges and residential buildings this year. The engineering volume is the highest in the past years, and breakthroughs have been made in energy conservation and environmental protection. 85% of the light source uses an LED energy-saving light source. At present, the lighting lighting project has been completed. Yesterday, Wang Shihua, member of the Standing Committee of the Municipal Party Committee and deputy mayor, inspected the lighting project of Harbin Yingda Winter Fair.
This year, Harbin City took the opportunity of welcoming the 24th Winter Universiade, and built a large-scale urban lighting with modern design techniques and advanced energy-saving and environmentally-friendly lamps around the main Yingbin Street, key areas and landscape nodes related to the Winter Universiade. Transformation and construction. At present, around the competition venues such as the Eighth District Gymnasium and the Ice Base, the lighting lines for the welcome line, the urban main street, and the main bridge and building have been completed. The lighting of the ambient lighting in each district was also completed a few days ago.
It is understood that the lighting and lighting project is the crowning touch for the environmental protection series of the Winter Universia. The whole project includes 22 competition venues, key areas and plazas related to the Great Winter Games, 15 welcome lines and urban main streets. area.
Related news: The theme LED light box settled in Harbin
Recently, the Winter Games, the Green Symphony of the Winter Games, the Green Symphony, and other eight sets of novel super bright LED light boxes have been settled in the sections of Nantong Street and Changjiang Road in Harbin. It is understood that the new super bright LED, LED features are very obvious, long life, high luminous efficiency, no radiation and low power consumption, LED spectrum is almost all concentrated in the visible light frequency band, its luminous efficiency can reach 80--90% . It is a typical green lighting source. (Harbin Daily)
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Due to the various characteristics of quartz glass, it is shown that it is an indispensable and excellent material in modern cutting-edge technology, atomic energy industry, automation system, as well as semiconductor, metallurgy, chemical industry, communications, lasers, optical instruments, laboratory instruments, medical equipment and national defense industries. One, the application is very wide.