国产精品卡1卡2卡3网站_日韩成人福利视频在线_亚洲av三级一级在线观看_不卡一区二区三区视频_色橹橹高清视频在线播放_久久中文精品视频_日韩中文av无码黄片_亚洲成熟女人色惰片_美女被遭强高潮网站在线播放_人妻绝顶中出无码幕网

      Depending on the repertoire, the requirements for the lamps are also different. The basic lighting configuration of the theater stage here refers to the basic ability to meet the needs of general opera, dance drama, ballet, drama, local drama and other performances. Downlight, also known as RAP lamp, its structure is to install a mirror bulb in the cylinder or a tungsten bromine bulb in the reflector, the main feature is that it can shoot a relatively fixed beam, the beam angle is wide and narrow, but the spot size can not be adjusted; The high-power diffuse lamps of the sky and floor lamps are used to illuminate the canopy up and down, requiring bright and balanced, and a large irradiation area:

      The main feature is that it can cut the spot into square, diamond, triangular and other shapes like a slide show, or project a variety of patterns and patterns, and the power is also available in 1K W, 2 K W and other optional configurations; There are also spotlights that are used less and less, and the spotlights used on stage are the use of plano-convex condensers in front of the lamps, which can be used to adjust the spot size. The light that comes out is more concentrated, and the light diffused next to it is smaller. The power is 0 . 5W -5 K W Various. There are long, medium and short focal lengths. Guangzhou stage lighting equipment can be selected according to the distance of sight. The stage lighting is mainly based on fixed-point light sources. With different colors to achieve a variety of visual effects. The first thing that the stage lighting respects is the human eye, that is, it fully considers people's viewing habits and shapes them on this basis.