一个好的ktv设计效果图离不开完美的灯光设计，而灯具投光范围在灯光设计可达到完美的陪衬效果，那么ktv灯光设计怎样选择合适的投光范围?
A good KTV design effect diagram can not be separated from the perfect lighting design, and the light range of the lamp in the lighting design can achieve a perfect foil effect, then KTV lighting design how to choose the appropriate range of light?
投光范围就是指灯具所提供的标准照度范围的大小，它决定于人们的活动范围和被照物体的体积及面积等。如餐桌所需的投光范围就是餐桌的面积;乒乓球台所需的投光范围就是球桌的面积;壁画则应使光线照射到整个画面;起居室内休息、待客的地方，则应使光线照射到整个沙发座位。有些时候为了强调景物中某些位置，比如画面的某一点，雕塑的某个局部，则可增设专用灯具，以取得预期效果。

The light range refers to the size of the standard illuminance range provided by the luminaire. It depends on the range of motion and the volume and area of the object being illuminated. If the table required light range is the table area; table tennis table needed to cast light range table is the area; mural should be light to the entire screen; the living room to rest, the local hospitality, should be light to the sofa seat. Sometimes, in order to emphasize some places in the scene, such as a certain point of the picture, a part of the sculpture can be added with special lamps to achieve the desired effect.
在KTV设计装修中，投光范围是一个相当重要的问题。如大型的会议室、办公室和教室等，由于需要均匀的光线，其投光范围亦是均匀的。但是更多的空间则常需要通过灯具的布置来控制投光的范围，使室内光线形成一定的明暗对比。
In the KTV design and decoration, the light range is a very important issue. For large conference rooms, offices and classrooms, the light range is uniform due to the need for uniform light. However, more space is often required to control the range of light distribution through the arrangement of lamps, so that the indoor light to form a certain brightness contrast.
分成明暗不同的区域。例如，在剧院中灯光的投射范围都集中在舞台上，有时还采用专用灯具，使光线随着演员在舞台上的活动而移动其投光范围，以此来烘托表演的气氛，并把观众的注意力集中到舞台上以增强演出效果。
Divide into areas of light and shade. For example, in the light projection range in the theatre are focused on the stage, sometimes using special lamps, the light with the actors on the stage of the activities of the mobile light range, in order to express the atmosphere of the performance, and the audience's attention to the stage to enhance performance.
相反，如果把灯具的光线都集中到观众厅的范围，那不仅会分散观众的注意力，而且还会冲淡甚至破坏舞台的照明，进而影响表演效果。
On the contrary, if the light of the lamp is concentrated in the auditorium, it will not only distract the attention of the audience, but also weaken or even destroy the lighting of the stage, thus affecting the performance.
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