Zhang Junhua, China National Aerospace Electronics Technology Research Institute
1. Overview of the development of foreign medical device industry
The medical device industry is an emerging industry related to human life and health. The developed countries in the world have maintained a high annual growth rate for more than ten years and are known as Chaoyang Industry. At present, the United States is the world's largest medical device market and leading medical technology, accounting for more than 40% of the global medical device market. The United States is both the world's largest producer and largest consumer. In the developed countries represented by the United States, the ratio of medicines and equipment has reached 1:1 in the per capita consumption of medicine and health, and the product technology and demand are still growing. The medical device industry has become a very active new economic growth point in the 21st century.
Modern medical instrument products gather and integrate a lot of the latest achievements of modern science and technology. It is a high-tech product combining medicine and various disciplines. It is a modern computer technology, precision mechanical technology, laser technology, radiology technology, nuclear technology, magnetic technology. Digital high-tech and computerized are the basic characteristics of modern high-tech products that combine detection and sensing technology, chemical detection technology, biomedical technology and information technology. The application of these technologies is inseparable from the research of electronic components. At present, the global digital medical instrument market is dominated by a few multinational companies in a few countries such as the United States, Japan, and Germany. These companies occupy 90% of the global digital medical imaging equipment field.
Aspheric lenses can increase the numerical aperture of a lens while minimizing system aberrations. Aspheric lenses may also reduce the number of elements needed in a multi-element system. Aspheric lenses can reduce overall system weight while providing advantages such as increasing throughput or simplifying assembly.
Convex Aspheric elements are used to reduce aberrations, aspheric lens is ideal for light collection, projection, illumination, detection, and condensing applications.
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