| 摘要 |
<p>A head lamp includes a housing (1), at least one illuminant unit (22, 3, 32) arranged in the housing (1), and a support shaft (40) supporting the housing (1). The housing (1) is rotatably supported on the support shaft (40), the at least one illuminant unit (22, 3, 32) is controlled to be turned on and/or off by rotating the housing (1) relative to the support shaft (40). By rotating the housing, the illuminant modes can be changed conveniently, and the head lamp is suitable for nightwork in the field, especially for some special events, such as in mines and diving.</p> |
