Type of LED projection lamp: 1 The rotationally symmetric lamp adopts a rotationally symmetric waveguide, and the center of the lamp source with rotationally symmetric light is symmetrically installed along the center line of the wave guide. The equal light intensity curve of this kind of lamp is an inscribed circle. This kind of projection lamp obtains elliptical light spots on the illuminated surface when lighting a single lamp, and the light intensity is uneven. However, when lighting a lamp with more than one lamp, this kind of light spots coincide with each other, which can create a satisfying actual lighting effect. For example, in the sports venues, hundreds of rotationally symmetrical projection lamps are generally used to install on the tall buildings around the sports venues to obtain the practical effect of high light intensity and high symmetry.

　　2. Two symmetries the isointensity curve of this kind of projection lamp has two symmetrical plans. Most lamps use symmetrical surface layer waveguide, and the parallel linear lamp source is installed along the center line of the surface layer.

　　3. The isointensity curve of a symmetrical lamp has only one symmetrical plan. The lamps use asymmetric encrypted surface layer waveguide or symmetrical surface layer waveguide plus the grid that defines the light source. The typical is the sharp cut-off block shrinkage light distribution. This kind of light intensity is all over, and a single lamp can get the satisfied light intensity.

　　4. There is no symmetry plan in the equal light intensity curve of lamps of different shapes. The key is to use mixed light lamps with different light intensity and different lamp sources, as well as common lamps formulated according to the special lighting regulations of the place of use. Projection lamp is a lamp that stipulates that the brightness on the illuminated surface is higher than the surrounding environment. Also known as stage spotlight. Generally, it can see all directions and has a structure that will not be damaged by climatic conditions. The key is applicable to large-scale workplaces, mines, housing construction corridors, stadiums, viaducts, martyrs' cemeteries, ecological parks and flower pools. Therefore, basically, large-scale lighting lamps and lanterns used in the field can be used as projection lamps. The angle of view of the outgoing light of the projection lamp is wide and narrow, and the change area is at the center of 0 ° ~ 180 °, among which the light is particularly narrow is called the lamp.

Source: Shenzhen floodlight manufacturerhttp://www.szjiajialiang.com