Zooming mechanism and photographic device thereof

Abstract

The invention discloses a zooming mechanism and a photographic device thereof. The zooming mechanism comprises a fixed barrel, a driving barrel and a movable barrel. The fixed barrel is provided with a first groove, and the first groove is provided with a first stop position and a first position. The driving barrel is arranged in the fixed barrel and is provided with a second groove, and the second groove is provided with a second stop position and a second position. The driving barrel is provided with a first guiding convex point, and the first guiding convex point is embedded in the first groove. The movable barrel is arranged in the driving barrel and is provided with a second guiding convex point, and the second guiding convex point is embedded in the second groove. Inclined grooves are positioned from the first stop position and the first position and from the second stop position to the second position. When the driving barrel rotates, the driving barrel is displaced for a first axial distance, the movable barrel is displaced for a second axial distance, and the total displacement of the movable barrel is equal to the sum of the first axial distance and the second axial distance. Accordingly, contour lengths of the fixed barrel, the driving barrel and the movable barrel are equalized, the contour length after lens contraction is reduced, space required for products is reduced, and the photographic device is miniaturized.

Description

technical field [0001] The present invention relates to a zoom mechanism and its camera device, in particular to a zoom mechanism and its camera device which are respectively provided with special grooves on the fixed cylinder and the drive cylinder to achieve the purpose of lens zooming. Background technique [0002] With the advent of the digital age, the way humans record their lives has changed. With the continuous advancement of technology, digital cameras have become a must-have 3C product for almost everyone. The zoom function of the camera allows the user to adjust the viewing angle range of the composition according to his needs when the user is at the same position, so as to overcome more environmental factors and achieve the viewing angle range that the user wants, thus making the optical zoom lens of the camera on the market Increasingly becoming the mainstream, and gradually developing towards high magnification. For the current cameras, most of the lens zoomin...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a zoom mechanism and its imaging device to solve the problem in the prior art that the length of the lens increases after the lens is contracted only by setting the groove on the drive cylinder

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