| 摘要 |
The present invention relates to an illuminating device (100), comprising a heat sink (1), a light-emitting assembly (2) arranged on the heat sink (1), and an optical assembly (3) mounted on the heat sink (1) for enclosing the light-emitting assembly (2), wherein the optical assembly (3) comprises first screw thread (31) and at least one pressing part, the heat sink (1) comprises second screw thread (11), and the first screw thread (31) is screwed into the second screw thread (11) and drive the pressing part to press the light-emitting assembly (2) against the heat sink (1). |
