Lens unit
AssigneeSharp Kabushiki Kaisha
InventorsMasayuki Nishikawa, Hideaki Fujita, Toshiharu Inui
Life of this patent
Estimating the term…
Abstract
One end of an FPC (21) for supplying power to the driving section of a light amount control section provided in a shutter unit (20) is disposed between a second lens holder (17) and the shutter unit (20) secured to this second lens holder (17) and is held between the second lens holder (17) and the shutter unit (20). Thus, the FPC (21) is prevented from being spaced apart from the shutter unit (20), and a member for securing the FPC (21) to the shutter unit (20) is eliminated, reducing the number of part items. Further, the second lens holder (17) and the shutter unit (20) blocks unwanted light toward the FPC (21), so that a ghost image is prevented from appearing on an image due to unwanted light reflected on the FPC (21).
Claims14
A lens unit comprising:
- a lens group arrayed in an optical-axis direction;
- a lens holder on which the lens group is mounted and which is movable along a shaft parallel to the optical axis;
- a shutter unit which is secured to the lens holder and which moves along with the lens holder;
- a driving section which is mounted on the shutter unit and which drives a light amount control section provided on the shutter unit so that the light amount control section performs a light amount control operation;
- and
- an interconnection which has flexibility and which supplies power to the driving section, wherein a first end portion of the interconnection, which is a driving section-side end, is placed between the lens holder and the shutter unit,
- wherein the interconnection is bent, in proximity to the first end portion at an end portion of the shutter unit, toward a subject side of the lens unit so as to extend toward the subject side, and is then curved halfway so as to extend toward an image pickup side of the lens unit.
A lens unit comprising:
- a lens group arrayed in an optical-axis direction;
- a lens holder on which the lens group is mounted and which is movable along a shaft parallel to the optical axis;
- a shutter unit which is secured to the lens holder and which moves along with the lens holder;
- a driving section which is mounted on the shutter unit and which drives a light amount control section provided on the shutter unit so that the light amount control section performs a light amount control operation;
- and
- an interconnection which has flexibility and which supplies power to the driving section, wherein the lens holder is located on a subject side of the shutter unit,
- the interconnection is band-shaped and bent, at an end portion of the shutter unit, toward the subject side, and
- the lens holder has a slit-like cutout near a position in which the interconnection is bent toward the subject side, and the interconnection is passed through the cutout so that the interconnection is held.
A lens unit comprising:
- a lens group arrayed in an optical-axis direction;
- a lens holder on which the lens group is mounted and which is movable along a shaft parallel to the optical axis;
- a shutter unit which is secured to the lens holder and which moves along with the lens holder;
- a driving section which is mounted on the shutter unit and which drives a light amount control section provided on the shutter unit so that the light amount control section performs a light amount control operation;
- and
- an interconnection which has flexibility and which supplies power to the driving section, wherein
- the lens holder is located on a subject side of the shutter unit,
- the interconnection is band-shaped and has a first end portion that is held between the shutter unit and the lens holder, and a second end portion that passes through a first cutout provided in a side wall of a casing of the lens unit, the interconnection being bent, at an end portion of the shutter unit, toward the subject side,
- the lens holder has a slit-like second cutout near a position in which the interconnection is bent toward the subject side, and the interconnection is passed through the second cutout so that the interconnection is held,
- the lens holder is provided with a generally L-shaped protruding portion which has a bottom portion extending from a part of a side surface of the lens holder in a direction perpendicular to the optical axis and an erected portion extending upwards from the bottom portion, with a side surface of the erected portion opposed to the side surface of the lens holder, and the second cutout is defined between the opposed side surfaces of the erected portion and the lens holder.
Dependencies are inferred from the claim text.