Duen-Kwei
Duen-Kwei Huang, Taichung TW
Patent application number | Description | Published |
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20140204469 | Zoom Lens - A zoom lens includes an external frame, a rotary shaft, an internal frame, a lens group and a spring. The internal frame is connected to the external frame via the rotary shaft, so that the internal frame is rotatable relative to the external frame. The lens group is fixed in the internal frame. The spring comprises a deformation part and two extension parts extended from the deformation part, wherein one extension part is propped against the internal frame and inclined at an acute angle relative to the rotary shaft, and the other extension part is propped against the external frame. | 07-24-2014 |
Duen-Kwei Hwang, Changhua City TW
Patent application number | Description | Published |
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20130088631 | LENS ASSEMBLY WITH AN IMAGE SENSOR BACKOFF MECHANISM - A lens assembly includes a base frame, an image sensor, a lens barrel, a lens and a backoff mechanism. By means of the backoff mechanism, the image sensor is mounted at the base frame and movable between an operative position and a non-operative backoff position. When the image sensor is in the operative position, the lens barrel is in a first position far frame the base frame, and the optical axis of the lens intersects the image sensor. When the lens barrel is moved to a second position close to the base frame, the image sensor is moved to the non-operative backoff position, and the optical axis of the lens is not intersected with the image sensor. | 04-11-2013 |
Duen-Kwei Hwang, Taichung TW
Patent application number | Description | Published |
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20140355132 | Optical Device - In an optical device, a first spring connects a first lens frame and a second lens frame for exerting a spring force thereon so that first pins of the first lens frame and second pins of the second lens frame abut a first cam groove and a second cam groove of a cam barrel respectively. A second spring connects the second lens frame and a third lens frame for exerting a spring force thereon so that the second pins of the second lens frame and third pins of the third lens frame abut the second cam groove and a third cam groove of the cam barrel respectively. The first spring may be a compression spring, and the second spring may be an extension spring. | 12-04-2014 |