Various embodiments include a camera having one or more bumper arrangements to cushion lateral movement of one or more camera components. In some embodiments, the bumper arrangement(s) may cushion lateral movement of a moveable platform as the moveable platform approaches a stationary structure. According to some embodiments, the bumper arrangement(s) may include one or more bumper features attached to (and/or defined by) the moveable platform and/or the stationary structure.

A liquid lens includes a first plate having a cavity for receiving a first liquid and a second liquid; a first electrode disposed on a first surface of the first plate; a second electrode disposed on a second surface of the first plate facing the first surface; and a temperature device disposed on the first surface of the first plate to be spaced apart from the individual electrode; wherein the first electrode includes first to eighth individual electrodes sequentially arranged along a circumferential direction about an optical axis, and wherein the temperature device includes at least one of a temperature sensor and a heater disposed between at least two individual electrodes of the first to eighth individual electrodes.

This application provides a lens module and a lens module control method to implement, among other features, automatic focusing and improve image definition. The lens module includes an imaging lens, a first control module, a first processing module, a liquid lens, and an image chip. The liquid lens is configured to refract an imaging beam that comes from the imaging lens, and the liquid lens comprises a transparent first flat lens and a transparent second flat lens that are parallel to each other. The first control module is configured to adjust a distance between the first flat lens and the second flat lens. The first processing module is configured to adjust a distance between the first flat lens and the second flat lens by using the first control module and based on a definition of the digital image, so as to adjust the definition of the image generated by the image chip.

A camera module includes a liquid lens; a first connection substrate disposed on one of a top or a bottom of the liquid lens; a second connection substrate disposed on a remaining one of the top or the bottom of the liquid lens; a temperature sensor configured to sense a temperature of the liquid lens; and a controller configured to output a heating voltage corresponding to the sensed temperature, wherein at least one of the first or second connection substrate includes a heater configured to generate heat in response to the heating voltage, and wherein the heater is disposed at a position corresponding to at least one of an upper surface or a lower surface of the liquid lens.

A system for driving an actuator which is capable of providing constant resolution regardless of a type of an actuator according to an aspect of the present invention includes an actuator driving circuit configured to generate a driving current for an operating actuator and output the generated driving current to the operating actuator, a current sensing unit configured to sense a current of the operating actuator and generate a sensing signal, and a gain adjustment unit configured to calculate a gain on the basis of a first maximum driving current range of the operating actuator and a second maximum driving current range of a reference actuator and change the sensing signal on the basis of the gain. A signal generated based on the second sensing signal is input to the actuator driving circuit.

A shake correction device including a driven body, a first actuator that is extendable and contractible in a first direction, a second actuator that is extendable and contractible in a second direction, a support that supports the driven body via the first actuator and the second actuator, a first connection mechanism unit that connects at least either between the first actuator and the driven body or between the first actuator and the support, and a second connection mechanism unit that connects at least either between the second actuator and the driven body or between the second actuator and the support. The first connection mechanism unit and the second connection mechanism unit have at least one degree of rotational freedom.

A lens control device, comprising a first stepping motor that drives a zoom lens contained in the photographing lens, a second stepping motor that drives a focus lens contained in the photographing lens, and a processor that controls the first stepping motor and the second stepping motor, whereby, within a given section in which the zoom lens and the focus lens are driven, there is a period in which at least one of the first stepping motor and the second stepping motor is driven at a constant rate, and the processor makes a time, required to move the specified section with a specified number of pulses, a specified time.

An illustrative example camera device includes a substrate and a sensor supported on the substrate. The sensor is configured to gather image information. A lens is situated near the sensor and an electroactive polymer selectively causes relative movement between the sensor and the lens.

The embodiment relates to a lens assembly and a camera module including the same.

The lens assembly according to the embodiment may include a housing 20, a first group lens assembly 210 disposed in the housing 20, and a second group lens assembly 320 disposed at one side of the first group lens assembly 210. The first group lens assembly 210 may be a fixed lens assembly, and may include a first lens 211 and a liquid lens 215. The second group lens assembly 320 may be a movable lens assembly and may include a second lens group 220. In an embodiment, the first group lens assembly 210 may have a negative (−) refractive power as a whole, and the second group lens assembly 320 may have a positive (+) refractive power as a whole.

An image blur correction device that forms a strong rolling surface on a movable member having a resin part and is improved in strength of the movable member. The image blur correction device includes a fixed member, rolling balls, and the movable member that includes a sheet metal member and the resin part molded integrally with the sheet metal member, holds an image capture device, and is movable in a direction orthogonal to an optical axis of the image capture device, relative to the fixed member. Part of the movable member, where the sheet metal member is exposed from the resin part, forms the rolling surfaces on which the rolling members roll, and the sheet metal member is formed into a shape surrounding the image capture device, as viewed from the optical axis direction.