| 摘要 |
A character and numeral displaying device which, in addition to AC power source, is particularly suitable for use with solar energy, comprises a solar energy converting device for converting solar energy into electrical energy, a battery means for receiving the electrical energy from said solar energy converting device and supplying the electrical energy stored therein, a circuit board means comprising a control circuit for automatic illumination of the character and numeral displaying device in the dark, a lighting means comprising a light source of a lamp bulb or light emitting diode (LED) with the body surface having a displaying device with a plurality of characters and numerals wherein each of the characters and numerals is formed with dot matrix of geometrical figures such as a parallelogram, a circle, or a diamond, the desired character or numeral being created by placing a plurality of suitably shaped shades, a very thin refracting plate being placed flatly below the displaying device or wound around within the lamp body, the outer surface thereof having a plurality of parallel stripes with right angled serrations, the inner surface being smooth, the light from the light source passing through said smooth surface and being refracted to be very uniform light rays from the outer surface such that the characters and numerals desired to be displayed are very clearly and brightly illuminated.
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