High magnification optical zoom lens

Abstract

The invention discloses a high magnification optical zoom lens which comprises a lens body which comprises at least one group of lens group modules which are slidingly arranged on the lens body and a zoom driving mechanism which can drive the lens group modules to move. The zoom driving mechanism comprises a rotating driving mechanism and a rotation piece driven by the rotating driving mechanism. The rotating piece is provided with sliding grooves corresponding to the lens group modules. The lens group modules are provided with sliding pins capable of extending into the sliding grooves. When the rotating piece is rotated, the sliding grooves and the sliding pins slide relatively and the lens group modules are driven by the sliding pins to carry out sliding zooming, the structure is simple and reasonable, the optical design is simple, the production is easy, the manufacture cost can be reduced, the adjustment of a focal distance can be realized through adjusting the inclination of the sliding grooves, the stepless and segmentless regulation is achieved, the zoom ratio is large and can be larger than 5.5 times, at the same time the visual angle switch of a large range can be realized, and the shooting requirements of telephoto and wide angle are satisfied.

Description

technical field [0001] The invention relates to a photographic equipment, in particular to a high-magnification optical zoom lens. Background technique [0002] Cameras, video cameras and other photographic or video equipment are usually equipped with lenses. Except for special fixed-focus shooting requirements, they are usually equipped with zoom lenses to adjust the zoom ratio and imaging angle. At present, most common zoom lenses use rotating rings and helical lenses. The cooperation of the slots is realized, and the driving device is built into the rotating ring, so the structure is complex, the cost is high, and the assembly is difficult. Contents of the invention [0003] In order to overcome the shortcomings of the prior art, the present invention provides a high-magnification optical zoom lens with simple structure and low manufacturing cost. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] The high-mag...

AI Technical Summary

Problems solved by technology

[0002] Cameras, video cameras and other photo or video equipment are usually equipped with lenses. Except for special fixed-focus shooting requirements, they are usually equipped with zoom lenses to adjust the zoom magnification and imaging angle. At present, most common zoom lenses use rotating rings and helical lenses. The matching of the grooves, the drive device is built into the rotating ring, the structure is complex, the cost is high, and the assembly is difficult

Images