Atomic Spectra

Neon spectrum 氖谱

Argon 氩 Hydrogen 氢 Helium 氦 Iodine 碘 Nitrogen 氮气 Neon 氖 Mercury 水星 Sodium 钠

This is an attempt to give a reasonable accurate picture of the appearance of the neon spectrum, but both the images are composite images. The image below is composed of segments of three photographs to make the yellow and green lines more visible along with the much brighter red lines. Then the image below was reduced and superimposed on the image above, because with the exposure reasonable for the bright tube, only the red lines were visible on the photograph.

Some of the visible lines of neon: 氖的可见谱线之一： l nm Color 颜色 540.1 green 绿色 585.2 yellow 黄色 588.2 yellow 黄色 603.0 orange 橙色 607.4 orange 橙色 616.4 orange 橙色 621.7 red-orange 红橙色 626.6 red-orange 红橙色 633.4 red 红 638.3 red 红 640.2 red 红 650.6 red 红 659.9 red 红 692.9 red 红 703.2 red 红

This is a section of the sign shown below, which has a central neon section and another gas mixture producing blue light around it. Such signs are excited by voltages of a few thousand volts produced by a transformer that raises the voltage of the ordinary AC line voltage. 这是下面所示的标志的一部分，其中央是一种氖气灯，周围还有另一种气体混合物发出蓝光。这类标志由几千伏的电压激发，这些电压由一个升压变压器产生，该变压器将普通交流线路电压提升到较高电压。

Atomic Spectra

Mercury spectrum 水银光谱

Argon 氩 Hydrogen 氢 Helium 氦 Iodine 碘 Nitrogen 氮气 Neon 氖 Mercury 水星 Sodium 钠

At left is a mercury spectral tube excited by means of a 5000 volt transformer. At the right of the image are the spectral lines through a 600 line/mm diffraction grating. 左侧是一根由5000伏变压器激励的汞弧光管。图像右侧是通过每毫米600线的衍射光栅得到的谱线。 The prominent mercury lines are at 435.835 nm (blue), 546.074 nm (green), and a pair at 576.959 nm and 579.065 nm (yellow-orange). There are two other blue lines at 404.656 nm and 407.781 nm and a weak line at 491.604 nm. 显著的汞线位于435.835纳米（蓝光）、546.074纳米（绿光），以及576.959纳米和579.065纳米的一对线（黄橙色）。还有两条蓝光线位于404.656纳米和407.781纳米，以及一条弱的线位于491.604纳米。