| 摘要 |
A laser designating apparatus includes a 1.5 V carbon-zinc battery (an 1.5V alkaline battery or a 1.2V nickel-metal hydride battery), a control circuit and a laser diode, wherein the control circuit is connected to the electric output port of the mentioned batteries to transform the output electricity of the batteries into 3 V (or 4.5 V); the electricity of the batteries is for the use of the laser diode. The laser diode is started up by using a battery and a control circuit.
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