Hangzhou Zheda Tricolor Instrument Co., Ltd. is a key high-tech enterprise under the National University Science Park of Zhejiang University. It specializes in manufacturing semiconductor lighting LED and flat panel display photoelectric detectors. It is the semiconductor lighting technology standard working group and flat panel display technology of the Ministry of Industry and Information Technology. The members of the standard working group, the director unit of China Lighting Association, and the director of China Lighting Institute are the official members of the International Lighting Commission CIE and the head unit of the international standard IEC62341-6-3 project.
Detection technology and international synchronization
When it comes to the three colors of Zhejiang University, I have to mention Professor Tong Tongsheng from Zhejiang University. He is not only a university teacher, but also the chairman and technical leader of Zhejiang University Tricolor Corporation. He is also an expert recommended by the National Standardization Administration Committee to represent China in the formulation of international standards. Professor Yan has been teaching in the Department of Optoelectronic Engineering of Zhejiang University for more than 20 years. His students are at home and abroad, and he has made great achievements in innovative application research. In 2001, with the launch of the National University Science Park of Zhejiang University, Zhejiang University Tricolor Company entered the park as the first batch of registered high-tech enterprises. With the technical advantages of Zhejiang University in the field of optical engineering, Zhejiang University Tricolor has been at the forefront of its peers in innovation and research and development, and has continuously introduced domestic leading optical inspection equipment; especially in the field of semiconductor lighting inspection technology and equipment, it is completely synchronized with the international. Zhejiang University has developed more than 10 kinds of photoelectric detection equipment for upstream and downstream of semiconductor lighting industry such as LED devices and lamps.
Since its inception, Zhejiang University Tricolor has paid great attention to the simultaneous development of technological innovation and industrialization, and has transformed the university's scientific research into innovative application products in a timely manner. It has been promoted to domestic and foreign markets and currently has innovative technology research and development centers and professional optical laboratories. With the support of the local provincial government, it has established an open laboratory for light and electricity with the National University Science Park of Zhejiang University. At the same time, the manufacturing base of optoelectronic equipment products covering an area of ​​over 20,000 square meters provides an important guarantee for industrial development.
Promote the development of industry standards
In recent years, in combination with the rapid development of semiconductor lighting technology and industry, Zhejiang University Tricolor Corporation has focused on research and development of LED testing equipment. In line with the standardization of LEDs, for the special problems in the optical and thermal performance testing of LED devices and modules, Zhejiang University Tricolor Company first developed a new LED metering integrating sphere with constant temperature control and transient spectrum radiation analyzer, LED junction Light and heat resistance integrated testing of photoelectric color heat analysis analyzer and other equipment to solve the LED performance test problems.
Reasonable matching of LED chips and phosphors is an important step in the manufacture of high-efficiency white LEDs. How to scientifically evaluate the performance of LED phosphors and provide a basis for the production of white LEDs is a key issue in the development of LED phosphor standards. Through the research on the optical measurement technology of phosphors, Zhejiang University Tricolor Co., Ltd. has solved the measurement method of quantum efficiency of phosphors. In the newly developed LED phosphor standard in China, the evaluation criteria of external quantum efficiency have been adopted, through the electronic technology in China. The standard compliance field test conducted by the 13th Institute of the group company was verified.
The impact of optical radiation on the human health of LED products has received increasing attention from the industry, and relevant international standards have been released. LED products currently sold to EU countries, optical radiation safety as a mandatory indicator incorporated into the requirements of CE certification. However, how to conduct accurate test evaluation has always been an international problem. Zhejiang University Tricolor has more than five years of research experience in optical radiation safety testing. It has proposed a new measurement method for LED evaluation of photochemical damage and thermal damage of human retina, and invented a retinal radiance meter. At the 2008 Photometric Chromatographic Experts Meeting in Italy, this innovation has attracted international attention. At present, Zhejiang University Tricolor Co., Ltd., as an optical testing laboratory in Asia, participates in the international LED light radiation safety test comparison test consisting of five countries including the United States, Germany, the United Kingdom, China and Austria. As the only expert in China, Prof. Tong Tongsheng participated in the formulation of relevant international standards and was mainly responsible for the measurement methods of LED light radiation safety. At the same time, Zhejiang University Tricolor Co., Ltd., as the leader of the drafting group for LED light radiation safety standards in China, began to take the lead in formulating relevant standards.
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