變焦透鏡系統

The invention provides a zoom lens system, which comprises a zooming unit, a compensating unit and an imaging unit arranged on a same optical axis in turn, a driving transmission mechanism and a micro-processing control unit, wherein the driving transmission mechanism comprises a zooming stepping motor and a compensating stepping motor. The zooming unit is arranged on an output shaft of the zooming stepping motor through a driving piece; the compensating unit is arranged on an output shaft of the compensating stepping motor through the driving piece; and the micro-processing control unit adjusts the distance between the compensating unit driven by the compensating stepping motor and the imaging unit according to the distance changes between the zooming unit driven by the zooming stepping motor and the imaging unit. The zoom lens system has the advantages of compact structure, small volume, simple manufacturing, low cost, economization and portability.

Inventor: DU, Xue | JIANG, Jin-bo | LI, Rong-bin | WANG, Wen-kui | ZHANG, Zhi-hui
Priority Number: CN101644815B
IPC Current: G02B000704 | G03B001334
Assignee Applicant: The Hong Kong University of Science and Technology
Title: Zoom lens system | Variable-power lens system
Usefulness: Zoom lens system | Variable-power lens system
Novelty: Zoom lens system, has drive transmission mechanism including zoom step motor and compensation step motor, and zoom unit fixed on output axis of zoom step motor by zoom transmission unit

Measurement/Testing

Measurement Tool

TO Sandy
CHEUNG Chi Fai
LEE Wing Bun
JIANG Jin Bo
WANG Wen Kui

Mainland China