| 摘要 |
A color-picture reading apparatus comprises blue, red-purpose, and green-purpose fluorescent lamps, a red filter in front of the red-purpose lamp for solely passing the red radiation, a green filter in front of the green-purpose lamp for solely passing the green radiation, and a circuit for subsequently switching on and off the three lamps. Both the red filter and the green filter comprise a first filter for filtering the short wavelength radiation and a second filter for cutting the long wavelength radiation. The first filter is a glass filter and the second filter is an interference filter. All of the three lamps have a short afterglow time.
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