May 23, 2020
Due to the peculiarity of the museum, its lighting is more demanding than other areas. Below we will discuss in depth what kind of lighting technology the museum needs. From the lighting design plan to the use of LED lighting fixtures (mainly track lights and LED downlights), there are many "stress", here to learn more. In addition to art, museum lighting is more about technology. It is a particularly meticulous and rigorous work.
1. Protect exhibits and prevent light damage
In order to protect the cultural relics and exhibits, the museum will strictly control the ultraviolet part of the light radiation, so that the relative ultraviolet content in the light source is less than 20μW / lm. Traditional light sources need to be filtered, and for LED light sources, because they do not contain these radiations, they are much safer and can be ignored.
2. Light quality
Color rendering index, reduction: The museum is a place that requires high color discrimination. The Ra of the main lighting fixture should not be less than 90 in order to more truly reflect the actual state and color of the cultural relic photos. Color temperature requirements: here are divided into two areas-the museum's ordinary showroom, usually using a light source with a high color temperature, the color temperature is less than 5300K; while the color temperature requirements of the cultural relics showroom are lower, the color temperature of the main lighting fixtures should be less than 3300K, the same exhibition hall The color temperature of the light source should be uniform.
The shading angle of direct lamps should not be less than that specified in the following table. The uncomfortable glare of general lighting in showrooms should adopt the unified glare value (UGR), and its allowable value should not be greater than 19. The shading angle of professional lighting fixtures in museums is generally greater than 30 degrees. More and more museums attach importance to the treatment of glare, and will require the lamps to hide the light or add anti-glare accessories.
1. Space lighting
After considering the relevant standards in general, it is necessary to enter the lighting link through the selection of lamps. It is necessary to comprehensively consider the ceiling structure, installation location, pipeline route, and air outlet layout when arranging lights.
2. Selection of lamps
After finishing the lamp placement, list the selection table and sort out the lamp parameters of each space by category.
3. Simulation analysis and verification
Relatively complex display spaces, or spaces with uncertain exhibits, require 3D modeling. In the case of accurate lamp parameters and modeling and fitting examples, very accurate data results can be obtained. Including detailed data such as illuminance at each point of the main surface of the space, average illuminance, etc. Through these simulation data, to judge whether the entire design meets the function and meets the standard. After completing the simulation, an actual lamp experiment will be used to verify the results. After completing these tasks, the technical theoretical work of museum lighting is basically completed, and there will usually be repetition in the middle. If the owner has ideas, etc., these need to be adjusted in the plan.
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