time:2021-07-15 source:ZJ Lighting Views:159
Some necessary preparations need to be done before the museum lighting commissioning work. First of all, it is necessary to distinguish the concept of museums. Outsiders often confuse museums with art galleries. There are many similarities between museums and art galleries, and there are also many differences.
Exhibits with high artistic value are naturally loved by visitors, but protecting photosensitive exhibits is also a huge challenge for designers. High-quality light-emitting diodes can protect the exhibits from ultraviolet and infrared damage, and the spotlight can be individually set by a dimmer to limit its light to an appropriate level. Compared with halogen lamps, the color temperature of LEDs is more stable, which means that even if the LEDs with dim light are used, the colors and materials of the exhibits can be guaranteed to have a delicate texture.
In a dark environment like a museum, high-contrast light can be used to set off light-sensitive exhibits. Here, sharp-edged light beams should be used instead of soft gradient light. This effect can be demonstrated by the contour lights. The strong contrast between the light and dark edges of the light will make the exhibitors feel that the light seems to be emitted from the inside of the exhibit. Items with different properties of materials have different sensitivity to light. According to the exhibits with different sensitivity, consider the light source and different illuminance used. The illuminance of exhibits that are not sensitive to light damage can be higher; the illuminance of exhibits that are sensitive to light must be limited, generally not exceeding 200lx; and the exhibits that are particularly sensitive to light should be illuminated at low illumination, generally below 50lx, and closed The works should be kept in dark conditions during the exhibition.
To achieve high-quality lighting for museum displays, in addition to paying attention to the protection of exhibits, it is also necessary to create an artistic visual experience, using scientific and rigorous technical means to create a comfortable and elegant visiting environment, so that the audience can be in a relaxed and pleasant environment. For the designer, it is necessary to scientifically select and use light according to the material types of different exhibits and the overall characteristics of the display, and to reasonably match the light colors in order to achieve high-quality museum lighting. At the same time, it is necessary to meet the requirements of safety, reliability, economical application, advanced technology, energy saving, and convenient maintenance.
In terms of lighting, rear-focusing showcase lights are generally used. The lights are installed on the top cover, and the beam angle and brightness are adjusted at the rear. This kind of lamp is used to facilitate the adjustment of the light spot, so as to achieve accurate light projection. At the same time, when debugging, people stand outside the showcase and observe the actual effect while adjusting, which is convenient for creating an ideal light environment for the showcase. In the later maintenance of the lamps, there is no need to open the showcase, which is beneficial to the protection of cultural relics! We will also equip the top of the cabinet with a dimming knob, so that the brightness can be adjusted according to the actual situation, which is very convenient!
For example, in the application of light color temperature, museums generally use a color temperature of 2700K-3300K, while art museums use a color temperature of 4000K-5000K. For another example, in the lighting method, art museums often use large-scale wall-washing lighting, which is not common in museums, and so on. Next, I will elaborate more on the lighting debugging of the museum, rarely involving the lighting part of the museum.