Common lighting functions and configurations in theatres

作者： admin 時間：2023-03-10 17:40:30 閱讀：283

Generally speaking, there are many common mirror-frame stage, whether in the past or in the reconstruction and construction of new theatres. We can talk about the lighting configuration of this stage.

The requirements for lamps and lanterns will vary according to the different plays performed. Therefore, we should know what plays are mainly performed on this stage before installing lamps, so that we can have a clear goal and intention when installing lamps. If some stage is positioned to perform traditional operas and ballet, then the lighting must be configured according to the requirements of operas and ballet. If special programs such as large-scale singing and dancing, still and so on are mainly used, in addition to the basic requirements for the configuration of lights, special lamp positions and lamps should be added according to the specific program requirements, which is difficult to explain clearly here. Therefore, I will only talk about the configuration of the basic lights on the stage of the theater. According to this configuration, it can meet the general requirements of local operas such as opera, dance, ballet, drama, Beijing opera, etc.

Before configuring lamps, we should first understand the types of lamps and their main functions and purposes. Here, I will briefly introduce the performance of some lamps for the selection of lamp configuration.

1. Spotlight - The spotlight used on the stage refers to the use of a flat convex condenser in front of the lamp. This kind of lamp can adjust the size of the light spot. The music beam coming out is relatively concentrated, and the diffuse light next to it is relatively small. The focal length can be divided into long, medium and short. The distance of the visual range can be selected according to the needs.

2. Soft light - in the entertainment industry, it is called spotlight. In the stage, in order to distinguish the above flat and convex spotlights from each other, they are scattered and soft, so they have a large diffuse area. Sometimes, in order to control their diffuse light, a cover page is added in front of the mirror to block it. Its characteristic is that the light area is large, which is different from the feeling of obvious spot of the spotlights, and the shooting distance is relatively close.

3. Return light - this kind of light has no lens in front of it, and the light is completely emitted from the larger reflector at the back. With the same 2KW light bulb, its brightness is brighter than the spotlight, so it is used when the strong light source and brightness should be displayed on the stage. Its effect is better than that of other lamps. It is characterized by strong light beam, but attention should be paid to its focus when dimming. It is not suitable to focus on colored paper or screen, which is easy to cause combustion. In addition, black centers often appear in the center of dimming. In order to avoid black centers, a ring baffle is added in the center of the front end of the lamp, which emits large light spots and is not easy to close. Now a new kind of reflective bowl is coated to make the outer line of the line transmit backward to reduce the temperature in front of the lamp. It has a good effect. It is called the cold light super spotlight. In fact, the structure of the lamp is the same as that of the return light.

4. Imaging lamp - or shaped lamp, ellipsoid spotlight. Its beam angle can be selected and applied according to needs. Its main feature is that it can cut the light spot into square, rhombus, triangle and other shapes like a slide, or project the required patterns. The power can also be configured with 1KW, 2KW and other options.

5. Downlight - PAR lamp, or beam lamp, is designed to be equipped with a mirror bulb in the cylinder or a tungsten bromide bulb in a reflective bowl. Its main characteristics are that it emits a relatively fixed beam of light, and the beam angle is wide and narrow, and the size of the light spot cannot be adjusted.

6. Ceiling light - high-power astigmatic light, used to illuminate the ceiling from top to bottom, requires brightness and balance, and large illumination area.

7. Floor lamp - high-power astigmatic lamp, used to place on the stage, with the lower part of the ceiling facing upwards, and connected with the light emitted by the ceiling lamp, which is uniform up and down.

8. Wall-washing lamp - long strip, which can generally be used for large area illumination of the screen or painting screen in multiple colors, and also can be used for large area balanced lighting. The light of various colors can also be used at the same time to call up different color beams.

9. General astigmatic lamps, such as iodine-tungsten lamps and general floodlights, are mainly used to uniformly illuminate a certain area or some scenery.

The lamps described above are the basic lamps used in the general stage, but other types of lamps should be equipped due to the different forms of performances. For example, in addition to the basic lamps, the singing and dancing party uses a large number of handkerchief lamps, computer lamps, dye lamps, various effect lamps, and even has to be equipped with smoke detectors, dry ice machines, strobe lamps, laser and water texture projection floating shadow lamps, as well as the matching used for rear projection, light source spot reduction, and special seamless plastic screens.