How to determine the lighting method and illuminance in the outdoor lighting design of department stores
The outdoor lighting design of department stores adopts different lighting methods, light sources and lamp types according to different environmental uses and architectural styles. By using different light sources, light colors, illuminance and other changes, the atmosphere and competition are created to achieve adjustment and improvement. The role of space effects.
1. Diversified forms of outdoor lighting design methods for department stores
Floodlighting
It is a lighting method that connects the night scene lighting source or lamps with the building structure of the wall, column, eaves, window, corner or roof part of the building facade, and is designed and constructed in synchronization with the main building.
For some high-rise shopping malls, lights can be used to evenly illuminate the whole building or some protruding parts of the building.
With its different brightness, various shadow changes and contrasts, color matching, etc., shopping malls can obtain a dazzling and beautiful effect in the dark.
Internal light-transmitting lighting
A lighting method that uses indoor light to transmit outward.
In modern shopping malls, many buildings use glass curtain walls. Due to the light absorption and light transmission of glass, if external lighting is used, it will not only fail to brighten the shopping center, but also cause a lot of light pollution.
In order to overcome this kind of problem, the lighting method of internal light transmission is generally adopted. It is to install lamps and lanterns in the room and transmit light to the outside through the glass. Common design methods include indoor light reflection, light belt bracket lighting, and direct light outward lighting. Wait.
Contour lighting
A lighting method that uses light to directly outline the contours of illuminated objects such as buildings and structures.
The main lighting of shopping malls is the outline lighting of buildings.
It uses the dark night sky as the background and uses lights arranged along the periphery of the building to outline the outline of the building.
Accent lighting
The narrow beam lamps are used to illuminate the local surface of the shopping mall to form a strong brightness contrast with the surroundings, and through the rhythmic light and dark changes, a unique visual effect lighting method is formed.
Architectural night lighting
It is a lighting method that connects the night scene lighting source or lamps with the building structure of the wall, column, eaves, window, corner or roof part of the building facade of the shopping mall, and is designed and constructed in synchronization with the main building.
Overall lighting: It is a kind of uniform lighting. The lamps and lanterns are evenly arranged in various places in the shopping center, so that the entire space is bright and the illumination is relatively uniform.
Local lighting
Local lighting is the use of concentrated and effective lighting to focus the light on a certain part of the shopping center, so that the local has a sense of dynamics.
In the night scene lighting design of modern shopping malls, mixed lighting is widely used. The overall lighting and local lighting are organically combined, and the local lighting is strengthened on the basis of the overall lighting, so that the shopping center environment has a kaleidoscopic and lively effect.
2. Overall coordination of lighting level
Proportional coordination of lighting levels
The overall average brightness (or illuminance) level, tone atmosphere, lighting method, etc. of the outdoor night scene lighting of shopping malls and shopping malls should maintain a macroscopic coordinated relationship with the lighting of the surrounding scenic spots.
The lighting level depends on the building material
The level of illuminance mainly depends on the material, color, cleanliness of the building surface, the brightness of the surrounding environment and the reflectivity of the building materials. Generally, for materials with smooth surface, light color, and good cleanliness, the illuminance can be lower; for materials with rough surface materials, darker color, and poor cleanliness, the illuminance can be higher.
In the design of outdoor night scene lighting for shopping malls, the illuminance of the main facade of the building or the parts that need special performance should be designed to be higher, and the design illuminance of the secondary parts should be lower, in order to achieve the purpose of distinguishing the main and subordinate and highlighting the theme.
If the environment and background of the building are dark, then only a small amount of light is needed to make the building brighter than the background; if the environment and background of the building are brighter, more light is required to be projected on the building. , So as to highlight the effect.
For example, in the lighting of some large shopping malls, the general ceiling adopts large-area and diffuse lighting, which can not only form various geometric patterns and various artistic shapes, but also effectively overcome glare and secondary reflection glare, and the entire space illuminance Uniform distribution and soft light can achieve the purpose of integrating lighting and beautifying the environment.
In the large space ceiling, the point light source and deep-illuminated lamps are used to construct a kind of dark sky curtain with a relaxed shopping feeling of bright stars.
