International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
54 The Design and Application of Laser Projective Number Display Device
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A projective number display device that uses laser-diode as its light source is introduced in this article. The device can project to a very long distance due to the usage of laser-diode. The direction, shape and size of the fond being projected can also be changed. The overall idea is given in the paper, as well as the structure charts and hardware connecting circuit of the device. The innovation technique about this device has gained Chinese patent of invention.