How to create a museum lighting environment? (two)

Illuminance temperature curve in museum lighting

Application of LED in Museum lighting:

Recently, Zhejiang University color Engineering Center experts in order to get comfortable in the museum lighting illumination and color combination, make several observers on 6 pieces of art selected in different color temperature and illumination under the combination of visual evaluation.

14 groups of indexes were used in the evaluation:

1, high contrast - low contrast

2, warm - cold

3, bright - dim

4, clear - Fuzzy

5, bright - monotonous

6, natural - unnatural

7, high quality - low quality

8, positive - negative

9. Relax

10, soft - hard

11, literary atmosphere - commercial atmosphere

12, vivid - boring

13, comfortable - uncomfortable

14, cheerful - unpleasant

The light source used in the test is THOUSLITE LEDCube with a multi-channel LED, which can adjust the output of any color temperature and illumination.

The 4 kinds of color temperature are 2850K, 4000K, 5000K and 6500K, respectively, the use of the 3 kinds of illumination are 50Lux, 200lux and 800lux.

The lowest and highest color temperatures correspond to the CIE standard illumination body A and the standard illuminant D65, while the minimum and maximum illumination are corresponding to the CIE definition of the scope of the museum exhibition. All of the lighting sources have a high color rendering index.

The results show that: with the color temperature becomes higher, the observer will produce a more cold perception; the increase of illumination can make the environment more bright. At about 200lux of moderate illumination and 3500K of low color temperature illumination, observers have a positive perception of most of the evaluation indicators in the study. In general, the color temperature changes in the range of 2850K-4000K and illumination changes in the range of 200lux -800lux can create a comfortable and pleasant LED lighting environment in the museum.

Comfort, vividness and clarity

In addition, in the museum visit process, the museum lighting comfort (Comfort), flexible and vivid (Vividness) and clarity (Definition) is particularly important for the observer's visual perception.

As shown above, increase the intensity of illumination can increase comfort, vivid and clarity, lower illuminance can increase the art exhibition; color temperature will increase clarity and enhance the artistic quality, reduce the temperature can enhance the comfort and flexible and vivid.

Due to the different needs of different lighting, can be customized according to the above rules.