發明
中華民國
104112430
I 574072
自動對焦系統及其對焦方法
國立中正大學
2017/03/11
本發明提供一種自動對焦系統,其包含一光源、一光處理單元、一光感測器及一調焦單元。其中,光處理單元包含一物鏡、至少一光反射器及一變焦鏡頭。光源發出的一光束經過物鏡投射至一待測物上,光束經過待測物反射後再經由光反射器反射到變焦鏡頭,最後由光感測器偵測而得一影像,以判斷待測物的一離焦位置。調焦單元可根據離焦位置調整物鏡與待測物的距離。其中自動對焦系統根據離焦位置即時調整合適之變焦鏡頭之放大倍率,以便令離焦位置趨近物鏡之焦點。藉由變焦鏡頭的焦距調整選擇不同的變焦鏡頭放大倍率,加快對焦的調整。 The present disclosure provides an automatic focusing system. The automatic focusing system includes a light source, a light processing unit, a light sensing unit and a focus adjusting unit. The light processing unit includes an objective lens, at least one light reflective member and a zoom lens. A light from the light source passing through the objective lens falls on an object. The light is reflected by the object and the light reflective member and then passes through the zoom lens to form an image on the light sensing unit. The image is used for judging a defocus distance. The focus adjusting unit can adjust the distance between the objective lens and the object based on the defocus distance. The automatic focusing system can adjust the magnification of the zoom lens in real time base on the defocus distance. The focusing speed can be improved by changing the focal length of the zoom lens to choose different magnifications.
本會(收文號1110067784)同意該校111年10月28日中正研發字第1110901122號函申請終止維護專利(國立中正大學)
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