| 摘要 |
The present invention provides a waterproof and externally modulated zoom structure, which comprises a module, on which there are a first adjusting section and a second adjusting section; the first adjusting section and second adjusting section are covered and affixed inside a housing; several adjusting shafts, which are installed on the first adjusting section and second adjusting section, so as to adjust the zoom of the first adjusting section and second adjusting section; several knobs, which are installed outside of the housing, and connected to a revolving axle that passes through the housing; a driving linkage is affixed on the revolving axle, so that the driving linkage can sleeve over the adjusting shaft; when the knob is turned, it can indirectly drive the adjusting shaft, thus adjusting the zoom of the first adjusting section and second adjusting section, in order to make the images more clear; the structure has advantages of simple structure, few components, low production, and feasibility for mass production.
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