Houma Butterfly Cup is simple in shape and fantastic in design. A tall fine porcelain cup holder, narrow in waist and wide in feet, looks like a golden bell-shaped jade-colored small handleless wine cup with gold inlaid on the side, which is dazzling; On the outer wall, two dragons play with beads, colorful; Tingting flowers on the inner wall are enchanting and beautiful, and are known as "precious treasures". When the glass is filled with wine, you will see a colorful butterfly rising from the bottom of the glass and rising and falling among the flowers. Vivid, superb, butterflies die. It is a good wine set full of butterflies and wine full of butterflies, which is very famous in China.
The butterfly cup has been recorded for a long time in the history of our country, and its production technology has long been lost. In recent years, workers and technicians from houma city Ceramic Factory have obtained a bottle of ancestral butterfly cups from local people. They studied carefully and explored deeply, and found out the optical principle of "the cup is full of butterflies, and the wine is dry and the butterflies are hidden" skillfully used by ancient artists. From more than 10,000 kinds of butterflies in the world, the most beautiful variety is selected for painting, and finally the ancient "Bao Bei" reappears in the world and becomes a world-renowned craft product. . The "Butterfly Cup" is a "crystal" made by using the optical principle. A convex lens with a short focal length is placed at the bottom of the cup. After water or white wine is poured into the cup, the convex lens will form a compound lens to lengthen the focal length, so that a clear butterfly pattern can be seen at the bottom of the cup. "It should be refraction, just like adding water. If there is more water in the cup, the bottom of the cup will look shallower. According to the principle of convex lens, adding more water is the same as adding less water, which will not affect the focal length of convex lens.