Lens unit, camera, and electronic device
AssigneeNidec Copal Corporation
InventorsKenzo Imai, Nobuaki Watanabe
Life of this patent
Estimating the term…
Abstract
A lens unit comprises a lens barrel, a pair of base plates, and iris blade, and a blade driving portion. The lens barrel holds a plurality of lenses, and has a first slit that extends in the circumferential direction. A pair of base plates each has an opening portion, and are stacked to structure a blade chamber, with a portion thereof protruding from the first slit, and is positioned so that the opening portions thereof are between the lenses. The iris blade is disposed in the blade chamber. A blade driving portion is secured to a portion of the pair of base plates, and drives the iris blade to open and close the opening portions in the iris blade.
Claims13
A lens unit comprising:
- a lens barrel for holding a plurality of lenses, having a first slit that extends in a circumferential direction;
- a pair of base plates that each has an opening portion, which are stacked to form a blade chamber therebetween, with a portion thereof protruding from the first slit, and which are positioned so that the opening portions thereof are between the lenses;
- a blade that is disposed in the blade chamber;
- and
- a blade driving portion, secured to the portion of the pair of base plates, for driving the blade to open and close the opening portion in the blade, wherein the blade driving portion is structured from a driving portion base whereon an electromagnetic actuator is provided, and a driving portion cover for covering the electromagnetic actuator, and wherein the driving portion base and the driving portion cover hold a portion of one or both of the pair of base plates therebetween.
A lens unit comprising:
- a lens barrel holding a plurality of lenses, having a first slit that extends in a circumferential direction;
- a pair of base plates that each has an opening portion, which are stacked to form a blade chamber therebetween, with a portion thereof protruding from the first slit, and which are positioned so that the opening portions thereof are between the lenses;
- a blade disposed in the blade chamber;
- a blade driving portion, secured to the portion of the pair of base plates, driving the blade to open and close the opening portion in the blade;
- a lens barrel driving portion moving the lens barrel in the optical axial direction of the plurality of lenses;
- and
- an outer frame holding the lens barrel so as to enable sliding in the optical axial direction, wherein an electrode provided on the outer frame and a coil of an electromagnetic actuator that is provided in the blade driving portion are connected electrically through a leaf spring.
Dependencies are inferred from the claim text.