基于专利分析的全球光致变色眼镜片技术发展态势研究

A Study of Global Photochromic Spectacle Lens Technology Development Trend Based on Patent Analysis

从专利信息的角度,深入了解全球光致变色眼镜片的发展现状,为今后相关技术的研发提供支持和帮助,促进眼镜产业进一步的发展。具体围绕光致变色眼镜片在世界范围内的专利申请趋势、国家及地区分布、主要专利申请人情况以及IPC的分类情况进行了分析。结果显示:全球光致变色眼镜片专利申请历经了3个阶段,目前正处于平稳发展时期。我国地区的专利申请量处于全球第二梯队。在光致变色眼镜片的研发过程中,热点技术领域经过了多次变迁,而主要专利申请人在不同技术领域都各具优势。

From the perspective of patent information,we can deeply understand the development status of photochromic spectacle lens,provide support and help for the research and development of related technologies in the future,and promote the further development of the glasses industry.In this paper,the trend of patent application,the distribution of countries and regions,the situation of main patent applicants and the classification of IPC of photochromic spectacle lens in the world are analyzed.The results show that the patent application of photochromic spectacle lens in the world has gone through three stages,and is now in a stable development period.The number of patent applications of photochromic spectacle lens in China is in the second tier of the world.During the research and development of photochromic spectacle lens,the hot technology field has undergone many changes,and the main patent applicants have their own advantages in different technical fields.