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Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings
Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings
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机译:长寿命,低强度光源,可在夜间查看设备图和其他文字
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摘要
A long-lifetime light source with sufficiently low intensity to be used for reading a map or other writing at nighttime, while not obscuring the user's normal night vision. This light source includes a diode electrically connected in series with a small power source and a lens properly positioned to focus at least a portion of the light produced by the diode.
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