In addition, Mozi in the Spring and Autumn Period and the Warring States Period studied the principle of small hole imaging, and the Northern Song Dynasty scientist Shen Kuo, who also analyzed the principle of convex and concave lenses in the "Mengxi Pen Talk", so according to the theoretical conditions at that time, it was possible to make a magnifying glass. For example, in the Yin Ruins oracle bones unearthed in Anyang, some of the oracle bones are as fine as gossamer, and it is obviously difficult to carve without the help of a magnifying glass. Portable Acrylic Lens Handheld 40X Magnifier Magnifying Glass With 2 LED Lights Quick Details Nanyang Jingliang Photoelectric Co., Ltd. 5 Yuan Chinise wu jiao under a magnifying glass isolated on white background front side. Not only the crystal-embedded gold circle excavated from the tomb of Liu Jing, the king of Guangling, can be directly proved, but also some archaeological findings can also be indirectly proved. RM 2A2W59TSutra of Eternal Life (Wu liang shou jing Sanskrit. Later, when museum experts cleaned this gold circle, they found that it actually had the function of enlarging.įor a long time, we may think that glasses are "imported products" and also named "dioramas", but in fact, glasses were first invented by our ancient ancestors. Download a PDF of the paper titled Inharmonious Region Localization by Magnifying Domain Discrepancy, by Jing Liang and 4 other authors Download PDF Abstract: Inharmonious region localization aims to localize the region in a synthetic image which is incompatible with surrounding background. The experts could not say what it was for a while, so they recorded it and waited for it to be cleaned and studied after returning to the museum. In the upper right of the bottom of the coffin, an expert used a small shovel to pick out a gold ring that looked like a ring, but there was a transparent crystal stone in the middle. In addition, Liu Jing's tomb also unearthed a large number of gold and silver ware and silk fabrics, but the most surprising thing is a treasure that was almost missed by experts - the inlaid crystal gold circle.Īt that time, Liu Jing's coffin contained hundreds of various burial items, and experts recorded them while counting, afraid of missing any cultural relics. Welcome to visit our factory and hope to build a long business relationship with you Company Information ABOUT US Nanyang City Jingliang Optical & Electronics. For example, a gold seal was found in Liu Jing's museum, about 2.3 centimeters long and about 0.9 centimeters thick, and the four words "Guangling King Seal" were engraved at the bottom, which not only corroborated the identity of Liu Jing, the king of Guangling, but also added a new treasure to the Nanjing Museum. In the tomb of Liu Jing, the King of Guangling, a gold circle embedded with crystals was unearthed, which was the first glasses in historyĪlthough Liu Jing's historical evaluation is not high, his tomb has made great contributions to archaeological research.
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