什么是波长
波长是波的两个连续波峰或波谷之间的距离。它是理解光的行为的基本概念,在照明设计和技术的各个方面都至关重要。在照明行业,光通常被描述为以横波的形式在自由空间中传播。这些波由振荡的光子组成,波的运动方向与光子的振荡方向垂直。波长是这些波的主要特征,用符号 λ 表示。
波长的测量可以在波的两个连续波峰或两个连续波谷之间进行。波峰指的是波的最高点,而波谷指的是波的最低点。我们可以通过测量这两点之间的距离来确定波长。
波长通常以纳米(nm)或微米(µm)为单位表示。纳米通常用于 可見光而微米通常用于红外线和紫外线。这些单位表示波的一个完整周期的长度,即从一个波峰到下一个波峰或从一个波谷到下一个波谷的长度。
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波长决定了 光色.不同波长的光对应可见光谱中的不同颜色。例如,波长约为 400-450 纳米的光呈现蓝色,而波长约为 600-700 纳米的光呈现红色。
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波长还会影响光与不同材料相互作用时的行为。当光线穿过透镜或棱镜等介质时,其波长会发生改变,从而产生以下现象 折射 和色散。这些效果可用于各种照明应用,如透镜设计和创造多彩的照明效果。


















