Abstract: A lens device includes a lens group unit, a guiding unit, a transmission unit and a driving unit. The guiding unit is connected to the lens group unit for guiding the lens group unit to move in a first direction or in a second direction. The transmission unit includes a fixing element. The driving unit is connected to the transmission unit so as to output power for driving the lens group unit through the transmission unit to move in the first direction X or in the second direction. The fixing element includes a body portion and a bent portion, and the bent portion extends from the body portion to form a space between the fixing element and the lens group unit.

Abstract: A lens module includes a driving device, an image sensing device, a lens group frame, and an infrared filter. The driving device has a lens barrel for an optical signal passing through. The image sensing device is on a path of the optical signal to convert the optical signal into an electric signal. The lens group frame is provided in the lens barrel, and has a main body, which is driven by the driving device to be moved between a first position and a second position, and a lens holder, which is pivotally connected on the main body and is swung between a third position and a fourth position when the main body is respectively at the first and the second positions. The infrared filter is provided on the lens holder, and is precisely aligned with the image sensing device when the lens holder is at the fourth position.

Abstract: A zoom lens includes a driving device, a zooming frame, and a lens group, wherein the driving device has a lens barrel. The zooming frame is located in the lens barrel, and has a body, a first lens holder, and a second lens holder which are pivotally connected to the body. The body is drivable by the driving device to reciprocally move between a first position and a second position. The first lens holder is respectively pivoted between a third position and a fourth position on the body along with the body being moved between the first position and the second position. The second lens holder is pivoted between a fifth position and a sixth position on the body in the same way. The lens group has a first lens sub-group provided on the first lens holder, and a second lens sub-group provided on the second lens holder.

Abstract: A lens module includes a driving device, an image sensing device, a lens group frame, and an infrared filter. The driving device has a lens barrel for an optical signal passing through. The image sensing device is on a path of the optical signal to convert the optical signal into an electric signal. The lens group frame is provided in the lens barrel, and has a main body, which is driven by the driving device to be moved between a first position and a second position, and a lens holder, which is pivotally connected on the main body and is swung between a third position and a fourth position when the main body is respectively at the first and the second positions. The infrared filter is provided on the lens holder, and is precisely aligned with the image sensing device when the lens holder is at the fourth position.

Abstract: 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.

Abstract: A zoom lens includes a driving device, a zooming frame, and a lens group, wherein the driving device has a lens barrel. The zooming frame is located in the lens barrel, and has a body, a first lens holder, and a second lens holder which are pivotally connected to the body. The body is drivable by the driving device to reciprocally move between a first position and a second position. The first lens holder is respectively pivoted between a third position and a fourth position on the body along with the body being moved between the first position and the second position. The second lens holder is pivoted between a fifth position and a sixth position on the body in the same way. The lens group has a first lens sub-group provided on the first lens holder, and a second lens sub-group provided on the second lens holder.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An electric dust-proof device includes a base seat, a driving mechanism, and a dust-proof cover. The driving mechanism is disposed on the base seat, and includes a power unit, and a drive unit. The drive unit includes a sliding seat driven by the power unit, a pair of first and second pushing portions disposed on the sliding seat and spaced apart from each other, and a guiding assembly for guiding reciprocal movement of the sliding seat along a direction. The dust-proof cover is disposed pivotally on the base seat, and has an engaging portion disposed between the first and second pushing portions, and a cover plate portion connected to the engaging portion. The first and second pushing portions cooperate to move the dust-proof cover between an open position and a close position as a result of the reciprocal movement of the sliding seat.

Abstract: An electric dust-proof device includes a base seat, a driving mechanism, and a dust-proof cover. The driving mechanism is disposed on the base seat, and includes a power unit, and a drive unit. The drive unit includes a sliding seat driven by the power unit, a pair of first and second pushing portions disposed on the sliding seat and spaced apart from each other, and a guiding assembly for guiding reciprocal movement of the sliding seat along a direction. The dust-proof cover is disposed pivotally on the base seat, and has an engaging portion disposed between the first and second pushing portions, and a cover plate portion connected to the engaging portion. The first and second pushing portions cooperate to move the dust-proof cover between an open position and a close position as a result of the reciprocal movement of the sliding seat.