Spring-free type focusing and defocusing mechanism for a digital camera
AssigneeUmax Data Systems Inc.
InventorsKou-Lung Tseng, Wei-Hsin Hwang, Chao-Soon Chen, Shih-Min Lo, Jang-Yan Hung, Chien-Chien Chung
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Abstract
A focusing and defocusing mechanism incorporated in a digital camera lens for simplifying the lens structure. The mechanism includes an outer lens barrel, a cam barrel having a slot of multiple slopes for adapting to the outer lens barrel, a guide pin affixed onto the outer wall of the outer lens barrel for rotating into the slot of the multiple slopes, and controlling elements affixed to the guide pin for controlling the distance and movement of the guide pin on the slot of multiple slopes.
Claims8
A focusing and defocusing mechanism incorporated in a digital camera lens comprising at least a lens group arranged along an optical axis, comprising:
- an outer lens barrel having a lens and a cylindrical lens mount and disposed among said lens group;
- a cam barrel having a slot of multiple slopes for adapting to said cylindrical lens mount;
- a guide pin fixed on the outer wall of said cylindrical lens mount for sliding into said slot of multiple slopes;
- and
- controlling means coupled to said guide pin for controlling the movement and distance of said guide pin on said slot of multiple slopes.
A focusing and defocusing mechanism incorporated in a digital camera lens comprising at least a lens group arranged along an optical axis, comprising:
- an outer lens barrel having a lens and a cylindrical lens mount and disposed among said lens group;
- a cam barrel having a slot of multiple slopes for adapting to said cylindrical lens mount;
- a guide pin affixed on the outer wall of said cylindrical lens mount for sliding into said slot of multiple slopes;
- a focusing lever holding said guide pin and coupling to a control button for shifting said guide pin along said slot of multiple slopes;
- and
- a limited slide for focusing movably close to said cam barrel for determining the shift distance of said guide pin on said slot of multiple slopes.
Dependencies are inferred from the claim text.