Zoom lens adjusting structure
A technology for adjusting the structure and zooming lens, which is applied in the focusing device, focusing device, focusing device of the camera, etc., can solve the problems of inappropriateness and thickening, and achieve the effect of large displacement space and increased zoom magnification.
Inactive Publication Date: 2014-03-26
FOSHAN PREMIER SCI & TECH CO LTD +1
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- Abstract
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Problems solved by technology
When the current zoom lens increases the zoom magnification and increases the back focus adjustment space, it is inevitable that the thickness of the lens will become thicker, which is obviously not suitable for the design requirements of current 3C electronic products that are light, thin, short and small
Method used
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Embodiment Construction
[0014] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0015] see figure 1 , is an exploded schematic view of an embodiment of the adjustment structure of the zoom lens of the present invention. The adjusting structure 10 includes a base 12 , a focusing device 14 and a driving device 16 . The base 12 is used to set the focusing device 14, the focusing device 14 has a fixed cylinder 142, an outer guide cylinder 144 and a cam cylinder 146, the outer guide cylinder is arranged in the fixed cylinder 142 144, the cam barrel 146 is set in the outer guide barrel 144, and a plurality of movable lens barrels 18 are arranged between the outer guide barrel 144 and the cam barrel 146, and the movable lens barrel 18 is fixed by the The driving device 16 disposed outside the barrel 142 adjusts relative positions to achieve the zooming and focusing functions of the focusing device 14 .
[0016] In this embodiment, the base 12 is pro...
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The invention provides a zoom lens adjusting structure. The zoom lens adjusting structure includes a base, a focusing device and a driving device, wherein the focusing device is arranged on the base, and is provided with a fixing cylinder, an outer guide cylinder and a cam cylinder; the outer guide cylinder is arranged in the fixing cylinder; the cam cylinder is arranged in the outer guide cylinder; a plurality of movable lens cones are arranged between the outer guide cylinder and the cam cylinder; lenses are arranged in the movable lens cones; the driving device is provided with a motor and a gear set and located on the outer side of the fixing cylinder, and drives the focusing device to adjust the locations of the movable lens cones. The movable lens cones achieve larger movement distances through the displacement guided by the outer guide cylinder, so that higher magnification zoom can be achieved through the lenses with a smaller thickness.
Description
technical field [0001] The invention relates to a zoom lens adjustment structure, in particular to a zoom lens adjustment structure which can increase the zoom ratio and avoid thickness increase. Background technique [0002] The zoom lens mainly operates through the telescopic operation of the guide cylinder in the lens at the front end of the lens to create an adjustable space for the back focus of the lens, and then adjusts the relative position in the back focus space of the lens group guided by the guide cylinder , so that the lens has the function of zooming. Therefore, in order to increase the range of image shooting of the zoom lens, it is necessary to increase the adjustment space of the back focus, so that the lens group can have more space for adjusting the focal length. When the current zoom lens increases the zoom magnification to increase the back focus adjustment space, it will inevitably make the thickness of the lens thicker, which is obviously not suitable...
Claims
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Login to View More IPC IPC(8): G02B7/10G03B13/34
CPCG02B7/102G02B7/10
Inventor 李俊杰李梓原康笑天张建军
Owner FOSHAN PREMIER SCI & TECH CO LTD