| 摘要 |
PURPOSE: A level using a laser is provided to easily check and mark different regions which are angularly spaced from a reference region by checking an angle defined by two horizontal gauges. CONSTITUTION: A level includes a laser pointer(10) radiating laser when a switch(11) is pushed. A gauge case(20) having a first window(22) is fixedly coupled to one side of the laser pointer(10). A first horizontal gauge(23) is accommodated in the gauge case(20). A connection member(40) having notch marks(43,55) is screw-coupled to the gauge case(20). The connection member(40) is rotatably coupled to a connection case(50). A second horizontal gauge(53) is accommodated in the connection case(50). A second window(52) is formed at the connection case(50). A battery and a laser diode are provided in the laser pointer(10).
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