Museum Corner

The so-called “museum angle” refers to an angle of incidence of 30 degrees. This angle is ideal for illuminating exhibits and showcases them perfectly. Since lighting is of such fundamental importance in museums—and the angle must therefore be just right—the 30-degree angle was named directly after this cultural institution. If the “museum angle” is disregarded or if the lighting is not installed with sufficient precision, a steeper angle of incidence can result in distracting glare, which casts long shadows on the sculpture or painting. If there is too much distance between the light fixture and the exhibit, there is a risk that the viewer themselves will cast unwanted shadows on it. All of this must be prevented to ensure a great experience for visitors. In addition to the museum angle, optical radiation must be taken into account in museum lighting, as incorrect or excessive light radiation can otherwise cause damage to sensitive exhibits. Here, it is important to consider the duration of exposure and to reduce or completely eliminate UV and infrared radiation. Great care is therefore required not only in securing or positioning the exhibits—some of which are very old—but precision and consideration are equally important in museum lighting. There are international regulations and recommendations that can serve as guidelines in this regard.