| 摘要 |
<p>A zoom flashlight comprises a lens tube (1). The lens tube (1) is connected to an LED (10), and a front end of the lens tube (1) is connected to a twist ring (7). A lens chamber (31) is disposed at the front of the LED (10), and a light-focusing glass set is disposed therein. A rear lens chamber (12) is disposed at the front of the lens chamber (31), and a first focusing lens group is fixed in the rear lens chamber with a rear lens chamber pressing ring (19). A front end of the twist ring (7) is connected to an outer cover (13). An outer tube (14) is disposed within the twist ring (7) and the outer cover (13), and an inner tube (15) is disposed in the outer tube (14). The outer tube (14) is connected to the twist ring (7) by a multiplying power adjusting screw (16). The rear lens chamber (12) is connected to the outer tube (14) and the inner tube (15) by a first sliding pin screw (17) and a first nylon sleeve (18). The front ends of the outer tube (14) and the inner tube (15) are connected to a front lens chamber (22) by a second sliding pin screw (20) and a second nylon sleeve (21). A second focusing lens group is fixed in the front lens chamber (22) with a front lens chamber pressing ring (32). Protective glass (24) is disposed in the front of the front lens chamber (22). The optical lens is used to adjust the light ring without the use of the conventional lamp cup, so that the light of the light ring formed in the illumination is even and no halation is formed, and meanwhile the size of the light ring can be adjusted.</p> |
