4 Key Points for Museum Lighting Design Safety and Protection

Museum exhibits are the focal point of all museum activities,including planning,decoration, exhibition layout,lighting,setup,and dismantling.Throughout these processes,precious exhibits remain at the center.Therefore, ensuring the safe preservation of these unique and rare artifacts is the primary concern in museum exhibitions,and museum lighting design must effectively address the balance between protecting exhibits and presenting them optimally.

1. Preventing the Chemical Effects of Ultraviolet Radiation. The presence of ultraviolet (UV) radiation from lighting can induce chemical reactions on the surface of exhibits,causing visible damage such as fading, discoloration,and material degradation. Once this damage occurs,it cannot be restored through protective measures.For museum and art gallery lighting,IESNA96 recommends a maximum UV content of 75μW/lm for light sources, while CIE2003's technical report suggests a maximum UV content of 10μW/lm.

2. Controlling Illumination Levels. Ensuring exhibit safety in museum lighting design requires managing the potential harm of light radiation to artifacts.This can be achieved by using filters to block UV and infrared radiation from lighting fixtures.Additionally, strict control over the illumination levels on exhibits is crucial. The incorporation of precise and convenient dimming devices effectively addresses the challenge of providing different illumination levels for various exhibit applications within a museum lighting scene. Coupled with intelligent lighting systems,this approach enhances the user-friendliness and intelligence of light management.

3. Preventing the Thermal Effects of Infrared Radiation. The presence of infrared (IR) radiation can lead to surface temperature elevation on exhibits, causing thermal expansion and contraction,accelerating aging,increasing material dryness,and making artifacts brittle.This can result in warping and cracking of the artifact's surface.

4. Limiting Annual Exposure. Museums should control the annual exposure of lighting on exhibits. Assuming an illumination level of 200 lux and museum lighting operating for 60 hours per week,the total annual exposure for an exhibit would be 600,000 lux-hours.The application of intelligent lighting systems enables smart control over the usage time of lighting fixtures,allowing for highly flexible scene transitions.

In summary, these four considerations are paramount in ensuring the safety and protection of museum exhibits through proper lighting design,effectively preserving their uniqueness and historical significance.

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