Requirements and selection for color rendering index when choosing stage lights

The meaning of color rendering index

The Color Render Index (CRI for short) is a value that indicates the level of color rendering of a light source and is used to measure the degree to which the light source presents the color of an object, that is, the degree of color fidelity. The International Commission on Illumination has set the color rendering index of sunlight at 100 as a reference standard. The closer the color rendering index of a light source is to 100, the stronger its ability to reproduce the color of an object, and the easier it is for the human eye to distinguish the color of an object.

The requirements for color rendering index in different areas of the stage

Comprehensive lighting in the stage area: In some stage lighting design standards for lecture halls, the color rendering index of the comprehensive lighting in the stage area is required to be no less than 85 (continuous spectrum). This is because the stage area is the core of the performance, and the lighting needs to be able to truly reproduce the skin color of the actors, the color of the costumes and the color of the props to ensure that the audience can clearly see the details and color effects of the performance.

Other specific areas: For some stage scenes with extremely high requirements for color reproduction, such as performances that need to precisely present color contrast, the color rendering index may need to reach 90-100. For instance, in some professional theatrical performances, to showcase the color changes of the characters' costumes and the details of the stage Settings, lighting with a high color rendering index is required to ensure the accuracy of the colors.

The influence of different color rendering indices on stage effects

Low color rendering index (below 70) : When the color rendering index of stage lights is low, the color distortion of the output is relatively high and the color reproduction is poor. This will cause the actors' skin tones to look unnatural, and the color of the costumes will also deviate significantly from the actual situation, affecting the audience's visual perception of the performance and reducing the artistic effect of the show.

High color rendering index (above 80) : When the color rendering index is above 80, the light can reproduce the true color of the object quite well. In stage performances, the skin color, expressions and costume details of the actors can all be clearly presented, and the colors of the stage set can also be more vivid and lively, enhancing the visual appeal and influence of the performance.

Excellent color rendering index (90-100) : For some stage scenes with extremely high color requirements, such as art exhibitions and high-end performances, lighting with a color rendering index of 90-100 can provide nearly perfect color reproduction effects. This kind of lighting enables the audience to see the most authentic colors and feel the most delicate color changes, adding higher artistic value to the performance.

Purchasing suggestions

Choose based on the type of performance: Different types of performances have different requirements for the color rendering index of lighting. If it is a commercial performance, a dance and song show or other performance with high requirements for color effect, it is recommended to choose stage lights with a color rendering index of 85 or above. If it is a professional drama, dance performance or art exhibition, it is recommended to choose lighting with a color rendering index of over 90.

Considering the budget and actual needs: Stage lights with a higher color rendering index usually have a higher price. When making a purchase, a comprehensive consideration should be made based on the performance budget and actual needs. If the performance does not have particularly high requirements for color reproduction or the budget is limited, lighting with a color rendering index between 80 and 85 can be chosen. If you are pursuing a high-quality performance effect and have a sufficient budget, you can choose lighting with a higher color rendering index.