What is the principle of artificial Buddha's light?

Buddha's light involves many phenomena such as diffraction, refraction and reflection of light. The color of the circle seen in the Buddha's light is mainly formed by the diffraction of light (if the university has done the "Newton ring" experiment, it should be well understood). Seeing your own shadow is a reflection of light, similar to the principle of a mirror.

Buddha light is a natural phenomenon of light, which is formed by the diffraction and diffuse reflection of sunlight on the surface of clouds. In the afternoon of late summer and early winter, a seven-color halo of red, orange, yellow, green, cyan, blue and purple suddenly appeared in the clouds under the rock, and the center was as bright as a mirror. The viewer's back is to the west of the sun, and sometimes he finds himself in the halo, and his gestures follow the shape. Even if hundreds of people watch at the same time, the viewer can only see his own shadow and not others. Tan Zhongyue's poem says: "Feiyun is not foggy, but colorful. Try to look at the height of the stone platform, everyone is in the Buddha's light. "

Buddha's light is a very special natural physical phenomenon. Its essence is that the sun projects the characters behind the observer onto the clouds in front of the observer. Tiny ice crystals and water droplets in the cloud form a unique circular rainbow, and the figure is among them. The appearance of Buddha's light depends on the synthesis of many natural factors such as sunshine, topography and sea of clouds, and only a few places with the above conditions can enjoy it. Mount Emei Snake Rock is a unique viewing place. /kloc-At the beginning of the 9th century, the scientific community named this rare natural phenomenon "Emei Baoguang". This natural phenomenon is not very rare in front of Jinding shooting rock. According to statistics, on average, there may be weather conditions convenient for viewing Buddha's light every five days, usually between three and four in the afternoon.

"Buddha's light" is a very common natural phenomenon, and it is not mysterious. As long as there are meteorological and topographic conditions to produce Buddha light, it is possible to produce it. "Buddha's light" is the most common in Jinding of Emei Mountain in China, because the meteorological conditions of Emei Mountain are the easiest to produce Buddha's light, so the phenomenon of Buddha's light is simply called "Emei light" in meteorology; Buddha's light often appears in the area of Bi Xia Temple in Daiding, Taishan Mountain, and the locals call it "Bi Xia Bao Guang".

"Buddha's light" occurs during the day, and the conditions are sunshine, clouds and special terrain. In the morning, the sun rises in the east and Buddha's light appears in the west. In the morning, "Buddha's Light" is in the west. In the afternoon, the sun moved west and Buddha's light appeared in the east; At noon, the sun shines vertically and there is no Buddha's light. Only when the sun, the human body and the cloud are in an inclined straight line can Buddha's light be produced. It is produced by the diffraction of sunlight and water droplets in clouds. If the viewing place is an isolated commanding height, then under the same conditions, Buddha's light appears more often.

"Buddha's light" is red, orange, yellow, green, cyan, blue and purple from outside to inside, with a diameter of about 2 meters. Sometimes in the case of strong sunshine and thick clouds, a concentric semicircle of Buddha's light with a diameter of 20-80 meters will be formed outside the small Buddha's light. Although the color is not obvious, the halo is particularly obvious. "

The figure in Buddha's Light is the projection of sunlight on the clouds. People who watch the "Buddha Light" raise their hands and wave, and the figure will also raise their hands and wave. This is called "colorful clouds, people and figures hidden in the middle", which is magical and magnificent.

The appearance time of "Buddha's light" depends on whether the sunlight is blocked by clouds and whether the clouds are stable. If the clouds cover the sun or flow away, the "Buddha light" will disappear. Generally, "Buddha's light" appears for half an hour to an hour. And the flow of clouds makes the Buddha light change its position; The intensity of sunlight makes the "Buddha light" intermittent. The size of the "Buddha light" color ring is related to the size of water droplets: the smaller the water droplets, the larger the ring; Conversely, the smaller the ring.

With the development of science, people have a deeper understanding of the phenomenon of Buddha's light. Climbing Mount Emei, Mount Tai and Mount Huangshan to see the Buddha's light is not a symbol of god's blessing, but a gift from nature, just like climbing a mountain to see the sunrise, from which you can enjoy the natural beauty.