"Light-controlled color-changing school badge! I want it!" On July 14, East China University of Science and Technology's first undergraduate admission notice was delivered.
Huali's 2021 undergraduate admission notice is designed and upgraded on the original basis: the outer cover adopts a hollow design, with sweet-scented osmanthus and magpies to congratulate the students on "Tsang Palace"; the exquisite hand-painted campus scenery on the inner page allows freshmen to get a glimpse of the campus scenery in advance; The inner box of the notice has a "light-controlled color-changing school badge", which can be used for interactive experience with the provided LED ultraviolet lamp; in addition, it also provides exquisite badges, postcards, campus maps and other cultural and creative gifts.
The most popular and hotly discussed is undoubtedly the latest scientific and technological achievement of Huali Professor Zhu Weihong's team "Light-Controlled Color Change School Badge".
The light-controlled color change calibration technology is a clever combination of photochromic dyes and liquid crystals, through short-wavelength ultraviolet light and long-wavelength visible light to achieve a breakthrough in multi-stable, light-responsive color change control.
This technology is the most advanced high-end anti-counterfeiting technology, with features such as reversible, variable, gradual, erasable, and angle dependent.
Related technology has applied for a Chinese invention patent "Multi-stable, continuous controllable reflection color double erasable anti-counterfeiting technology and its application in the field of optical information coding" and an international PCT patent.
(Reporter Xu Jing produced Zhou Jing's video source from East China University of Science and Technology)
Editor in charge: [Ji Xiang]