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A Short History of Photosensitive Glass Patents

机译：光敏玻璃专利简史

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摘要

The development of photosensitive glass (PG) has a remarkable history since its first commercial discovery in the 1940s. The manufacturing of PG is one of the most widely reported methods for special glass manufacturing. PGs are capable of forming permanent photographic images when subjected to light, providing security, high quality and productivity. The first U. S. patent about photosensitive glass was filed on December 8th, 1943, and published July 18th, 1950, by Stanley Donald Stookey. A historical perspective about photosensitive glass represents an important step for future applications. PG has been considered one of the most interesting research areas with potential industrial applications. A number of companies and institutions have explored the usefulness of such special glasses. In this paper, we investigated the number of published manuscripts and patents and determined the correlation of research activities to the production of new PG materials. The United States, Japan and China have been leaders in photosensitive glass development and have contributed to an impressive rise of activity in PG based on a number of new publications, author keywords, affiliations and primary characterization techniques. We verified that the number of published fundamental PG studies was greater from academic institutions than from industrial laboratories. According to the European Patent Office, more than 6,228 patents have been globally filed prior to 2013 with the terms "photosensitive" and "glass" within the title or abstract. These numbers have continued to grow along with worldwide PG-related sales. Based on the Scopus database, for the same period, 1,301 PG documents (primarily manuscripts) were published with the same terms in the title, abstract or keyword list. Statistically, there have been fewer worldwide publications of manuscripts than patents.
机译：自1940年代首次商业化发现以来，光敏玻璃（PG）的开发就拥有非凡的历史。 PG的制造是报告最广泛的特殊玻璃制造方法之一。 PG可以在光照下形成永久性的摄影图像，从而提供安全性，高质量和高生产率。关于光敏玻璃的第一项美国专利于1943年12月8日提交，并由Stanley Donald Stookey于1950年7月18日发布。关于光敏玻璃的历史观点代表了未来应用的重要一步。 PG被认为是具有潜在工业应用的最有趣的研究领域之一。许多公司和机构已经探索了这种特殊眼镜的实用性。在本文中，我们调查了已发表的手稿和专利的数量，并确定了研究活动与新型PG材料生产之间的相关性。美国，日本和中国一直是光敏玻璃发展的领导者，并基于许多新出版物，作者关键词，隶属关系和主要表征技术，为PG活动的显着增长做出了贡献。我们证实，学术机构发布的基础PG研究数量要多于工业实验室。根据欧洲专利局的说法，2013年之前，全球已提交了6,228多项专利，其标题或摘要中包含“光敏”和“玻璃”一词。这些数字随着全球与PG相关的销售而持续增长。同期，根据Scopus数据库发布了1,301份PG文档（主要是手稿），其标题，摘要或关键字列表中的术语相同。从统计学上讲，手稿的全球出版物少于专利。

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