2 digital dimming: the use of audio chip technology, DM512 digital signal. It is better to use the digital light adjusting table, which is more convenient to use, the function of the light adjusting, the backup function, the grouping function, the adjustment curve and so on. In understanding the lamp, lamp characteristics and control equipment and color changer, you can according to the different characteristics, the size of the use of the scale of Guangzhou stage lighting.
(five) theater stage lighting configuration
In the theatre stage many kinds, ordinary proscenium, a thrust stage, stage of island, also known as black box stage, because the form of stage, so lamp configuration requirements are not the same. Such as ordinary the proscenium stage, this stage whether in the past or is now rebuilding and new theater are more, so this stage of lamps and lanterns collocation is more need and necessary.
Stage (refers to the proscenium) for performance repertoire of fixture requirements will vary, so equipped with a lamp before must to be clear in this stage performances which plays, this lamp configuration will have a clear goals and intentions. Such as some of the stage is positioned in the performance of traditional opera or ballet based, lighting configuration must configured according to the requirements of the opera and ballet. Such as large dance, acrobatics and other special programs, the lighting in addition to the basic requirements of the configuration, should be based on the specific program to configure special lights and lamps.
In the configuration of lamps, the first should understand the types of lamps and the main functions and uses. In this paper, the author introduces some of the performance of the lamps and lanterns, the choice of the lamps and lanterns.
1. The spotlight: spotlights on the stage is refers to the lamp in front of the plano convex lens, the lamp can adjust beam size, out of the beam is relatively concentrated, next to diffuse the light is relatively small, the power of the 0.5W to 5kW, focal length is long, and short, depending on the firing distance the distance according to the needs of the selection.
2 rib lamp: or soft light, but in the TV Festival is called the spotlight. The stage for the difference between the plano convex spotlight powder and soft, so it diffusion area large, sometimes in order to control the diffusion of light in front of the mirror and on the front page of the times block, is the character of the region of large area, doesn't like the spotlight a feeling of clear spot, shoot closer to the distance and power frequency 1kW, 2kW variety.
3 back lights: this lamp in front of no lens, its brightness is more than the spotlight, on stage to show strong light source and brightness when using. Is characterized by strong light, but light should pay attention to the focus, not the poly focus adjusting in the colored paper or on a screen, so easy to cause combustion, also in the dimming, often appeared in the center of black, in order to avoid black, add a ring baffle in the center in the front of the lamp, the emitted light spot large and is easy to be folded. And now the new out of a reflective bowl coater gives infrared transmission, to reduce the light in front of the temperature, use the effect is very good, name for super El spotlights, the actual structure and retro light the lamp of the same.
4 imaging light: or shaped lamp, ellipsoid spotlight. The beam angle variety can according to need to select the application, the main characteristics is like slide the spot cut into square, diamond, triangle and other various shapes, or projected out of various patterns.
5. Downlight, or PAR lamps, light, its structure is in the cylinder by specular lighting, the main characteristics of Guangzhou stage lighting is more fixed beam injection, beam angle width of multiple, spot size cannot be adjustment.
The 6 day: row lamp astigmatism lamp power, used by the downward irradiation with sky, bright and balanced requirements, large area irradiation.
7. Row of lamps: high power light lamp, used to put on the surface of the stage, at the lower part of the sky toward the irradiation, and the day row of lamps irradiation of the light phase, uniform from top to bottom.
8. Astigmatism lights: strip, into a plurality of lattices, generally divided into three or four colors, each grid incandescent lighting power around 200W, requirements of various colours are connected with uniform, large area irradiation curtain or picture screen, but also as a large area of the balanced development of light, all colors of light, still can use at the same time, mix the different color light beams.
9 general astigmatism lights: such as tungsten and common floodlights, is evenly illuminate an area, or in some settings.
Above the lamps and lanterns, Guangzhou stage lighting for the general stage used by the basic lamps, but the performance of the form of the play should be configured to other types of lamps. Such as song and dance show in addition to the basic luminaire, extensive use of lamp, lamp, lamp tube and a variety of lighting effects, even also configure a smoke machine, ice machine, strobe, and laser projector, and supporting the use of donor after light, light speckle reduction, special seamless plastic and so on.