Does ordinary lighting have an impact on cultural relics?

Lighting has an influence on cultural relics, which is known not only by museum directors and staff, but also by many citizens who like to travel like me. Because of this, the light in some museums is dim; Moreover, tour guides and museum staff will remind visitors not to turn on the flash to take pictures in advance.

Influence of light radiation on cultural relics protection environment

Natural light and artificial light, which human beings depend on for survival and activities, are harmful to the protection of cultural relics. Like the temperature and humidity environment, it has become the basic external factor of cultural relics protection environment. The harm of light to cultural relics lies not only in its thermal effect that can accelerate related chemical reactions, but also in photochemical reactions that lead to the aging of cultural relics. Light will make paper cultural relics such as calligraphy and painting, ancient books and silk cultural relics brittle and discolored, and it will also make the colors of cultural relics such as ceramics and murals fade. Therefore, bloodstone can only be stored in lead boxes to avoid blackening. It goes without saying that avoiding light is an effective measure for the protection of cultural relics. However, cultural relics will inevitably be displayed, studied, exchanged and used, which obviously contradicts their protection. How to properly solve this contradiction is the key to the protection and utilization of cultural relics. The method is to avoid direct sunlight or illumination and reduce illumination time. Weak light perception is appropriate. The illuminance of paper cultural relics such as calligraphy and painting, ancient books and silk cultural relics is 25 ~ 50lx, that of bamboo, wood, teeth and lacquer is less than 150lx, that of stone and ceramics is less than 300lx, and that of warehouse is 30lx. Too strong light is harmful to cultural relics, and too weak is not conducive to observation. The author saw in the Heisei Museum of Tokyo National Museum in Japan that the lighting design with a 45-degree angle not only avoids direct exposure to cultural relics, but also helps to protect cultural relics, and the refracted light is also beneficial to the audience's viewing sight. Moreover, using polarized light to see cultural relics is not distorted, and its true colors are obtained. Recently, there is a coating called "photo-contact enzyme". According to reports, it can filter out harmful components in light, such as ultraviolet rays, when coated on light sources or transparent objects. Changjiang Business Daily reported yesterday that French President Jacques Chirac arrived in Xi on 28th for a visit. In order to protect cultural relics, the underground museum of Hanyang Mausoleum is dimly lit. Some French journalists turned on bright news lights in order to get a clear picture. Wu Xiaocong, curator of the museum, whispered to the people next to him that lighting has an influence on cultural relics. I didn't expect the translator to translate it to the president immediately after hearing it. The president immediately turned to the French reporters, who obediently turned off the lights.

President Chirac ordered his reporters to turn off the glare, which not only showed his respect for the opinions of the staff in China, but also showed his love for cultural relics. After reading this news, while paying tribute to President Chirac, the author is also worried about the resurgence of museums and cultural relics in our country.

If the director of the Hanyang Mausoleum Museum whispered to others that "lighting has an influence on cultural relics" was not eavesdropped by the translator, and if the translator did not translate this sentence to the French president in time, Chirac would not order the French reporter to turn off the strong light. In this way, those strong lights will inevitably have a greater impact on cultural relics.

Lighting has an influence on cultural relics, which is known not only by museum directors and staff, but also by many citizens who like to travel like me. Because of this, the light in some museums is dim; Moreover, tour guides and museum staff will remind visitors not to turn on the flash to take pictures in advance. In this case, before President Chirac and his party visit, the museum should inform them of the rule that "it is forbidden to take photos with strong light in the museum"; When a reporter is found to have turned on the bright light in violation of regulations, the museum should confidently and quickly stop it. "Whispering to others" is meaningless "complaining" because most foreign friends can't understand Chinese.

It is conceivable that if the underground museum of Hanyang Mausoleum is an ordinary domestic tourist, the museum will not hesitate to stop it, and may even punish violators. Of course, foreign VIPs should be respected, but they should not be "soft" on the principled issues involving cultural relics protection. There are still many foreign VIPs visiting the museum. If they are allowed to violate the system out of the psychology of "respecting VIPs", only precious cultural relics will be damaged, as well as the seriousness and fairness of the rules.

Foreign guests who take photos in strong light are undoubtedly cultural relics lovers. I believe they must accept the view that urging tourists to care for cultural relics is the greatest respect for cultural relics and tourists.