Umax Data Systems, Inc.

Shih-Min Lo

Kou-Lung Tseng

Wei-Hsin Hwang

Chien-Chin Chan

Jang-Yan Hung

Chao-Soon Chen

Chien-Chien Chung

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.

Spring-free type focusing and defocusing mechanism for a digital camera

An optical scanning apparatus including a first optical unit and a second optical unit used to illuminate a document and direct the reflected light via a lens unit to the light sensing device; a movement mechanism used to move the first and second optical units in such a way that the optical path from the light source to the lens unit is always a fixed length. The movement mechanism includes a first driving unit having a first driving wheel, a first passive wheel, and a first transmission member coupling the first driving and passive wheels and affixed to the first optical unit; a second driving unit having a second driving wheel, a second passive wheel, and a second transmission member coupling the second driving and passive wheels and affixed to the second optical unit; and a driving motor. The diameter of the first driving wheel is of a predetermined multiple of that of the second driving wheel such that the optical path from the light source to the lens unit is always a fixed length.

Optical scanning apparatus

Growing community of inventors

Taichung County, Taiwan

Shih-Min Lo