What are the lighting methods commonly used indoors?

According to the spatial distribution of the luminous flux of lamps and installation methods, it can be said that the commonly used indoor lighting is divided into the following five types:

1. Direct lighting: Light is emitted through a luminaire, and 90% to 100% of the luminous flux reaches the assumed work surface. This lighting method is direct lighting. This lighting method has a strong contrast between light and shade, and can create interesting and vivid light and shadow effects, highlighting the dominant position of the work surface in the entire environment, but due to the high brightness, glare should be prevented.

2. Semi-direct lighting: The lampshade made of translucent material covers the upper part of the light source, 60% - 90% of the light makes it concentrated on the working surface, 10% - 40% is covered by the light and the translucent lamp shade spreads upwards. Diffuse, its light is softer. This type of fixture is commonly used for general lighting in lower rooms. As the diffuse light can illuminate the flat top, the height of the top of the room increases, so that a higher sense of space can be generated.

3, indirect lighting: the indirect light of the light source shielding the way of illumination, which 90% -100% of the luminous flux through the ceiling or wall reflection on the work surface, less than 10% of the light is directly exposed to the work surface. When using this lighting method alone, pay attention to the thick shadows on the lower part of the opaque shade. Usually used in conjunction with other lighting methods to achieve special artistic effects. Stores, clothing stores, conference rooms and other places are generally used as ambient lighting or to enhance the brightness of the scenery.

4. Semi-indirect lighting: Contrary to semi-direct lighting, semi-transparent lampshade is installed in the lower part of the light source, and more than 60% of the light is directed to the flat top, forming an indirect light source, and 10% to 40% of the light diffuses downward through the lampshade. This method can produce more special lighting effects, so that the lower room has a higher feeling. It is also suitable for small spaces in residences, such as hallways and aisles. Apparel shops, etc., usually use this kind of lighting in a learning environment, which is most suitable.

5, diffuse lighting: is the use of the refracting function of the lamp to control the glare, so that the light diffuse diffusion around. This kind of lighting generally has two forms. One is that light is emitted from the upper surface of the lampshade through the flat top, the two sides are diffused from the translucent lampshade, and the lower part is diffused from the grille. The other is to use a translucent shade to completely close the light and create a diffused light. This type of lighting is soft, visually comfortable and suitable for bedrooms.