A battery device includes a connection unit to which an electronic apparatus is connected, a calculation unit that calculates a remaining battery level of a battery of the battery device based on a full charge capacity of a battery of the electronic apparatus, and a display unit that displays information indicating a result of calculation made by the calculation unit.

This invention relates to the protection system for battery current collectors in cameras mounted on a gun, bow, or shooting device. More particularly, the present invention relates to the system of protecting the current collectors from fracture in a camera attached to a gun barrel or shooting device as a result of recoil and shock and vibration during shooting device discharge.

An optical device, such as a camera or spot light, having first and second removably engagable components. Disengagement of the components exposes a battery compartment in the second component. The first component can include all optical components of the optical device, such as a camera or light. A magnetic mount can provide a secure and adjustable mounting for the optical device housing on a support.

An imaging device has a bearing that has a first ring and a second ring, a first plate that is disposed on one side of the bearing and fixed to the first ring, an imaging unit that is disposed on a side of the first plate, a second plate that is disposed on another side of the bearing and fixed to the second ring, a first inductor that is accommodated in the first plate, and a second inductor that faces the first inductor and is accommodated in the second plate.

A wearable camera includes a capturing portion configured to capture a subject around a user, a control portion configured to control capturing processing of the capturing portion and charging processing of a battery, an upper housing that is mountable to the user and accommodates the capturing portion and the control portion, and a lower housing that accommodates the battery for supplying power to the upper housing, is detachably attached to the upper housing, and has a contact terminal which is exposed to an outside and is used for charging the battery, wherein the lower housing is configured to be connected to a charging stand via the contact terminal such that the battery is charged in a state where the lower housing is attached to the upper housing.

An image capture apparatus includes a connection unit to which an accessory apparatus is connected, a communication unit that communicates with a power source that supplies power to the image capture apparatus, and a control unit that determines power suppliable to the connection unit based on a predetermined value in a case where a predetermined communication with the power source is not to be performed. The connection unit is configured to supply power from the power source to the accessory apparatus.

The interchangeable lens is detachably attachable to an image capturing apparatus. The lens includes an electronic display to display information, and a lens controller to control an operation of the lens. The lens controller is capable of setting an operation state of the lens to a normal operation state where the interchangeable lens communicates with the image capturing apparatus and displays the information on the electronic display and to a first low power consumption state in which the interchangeable lens displays the information on the electronic display with a power consumption of the interchangeable lens lower than that in the normal operation state. The lens controller transfers the operation state from the normal operation state to the first low power consumption state, in response to receipt of a power lowering instruction for lowering the power consumption of the interchangeable lens from the image capturing apparatus.

A submersible camera housing specifically configured for use with a portable digital video camera includes a generally bullet-shaped main body having a top, a bottom, a forward end and an open rearward end, and a clear cover removably affixed to the rear end forming a watertight seal with the main body. A battery power source is removably disposed within a battery receiving cavity and electrically connected to a light. A video camera cavity is specifically sized and shaped for receiving a popular digital video camera snugly therein. The clear end cover is adapted for threaded engagement with the read end of the main body and includes an O-ring which forms a watertight seal between the cover and the main body thereby preventing water penetration into the housing interior.

In a mount device including a mount which an accessory is attachable to and detachable from, a plurality of terminals arranged along a circumferential direction of the mount and used for electrical connection with the accessory includes a first terminal which is used to supply driving electric power serving as a first voltage to the accessory, and a second terminal which exhibits a voltage that changes according to the accessory mounted to the mount device, wherein the second terminal is able to be set to an input state or an output state, and is set to the input state during a period in which the driving electric power is not output to the accessory via the first terminal.

The utility model discloses a multi-voltage output camera kit handle which comprises a shell, a lithium battery, an intelligent control circuit, a power interface and a power switch. The lithium battery, the intelligent control circuit, the power interface and the power switch are installed on the shell; the shell comprises a lithium battery accommodating cavity and a power interface window; the lithium battery is installed in the lithium battery accommodating cavity; and the power interface is installed at the power interface window; the power interface comprises a charging interface and a discharging interface; the charging interface is used for charging the lithium battery, and the discharging interface is used for discharging different devices; the power switch is used for starting or closing the discharging for different devices; and the power interface, the lithium battery and the power switch are welded on the intelligent control circuit. The utility model can replace an original handle on a kit, occupies no extra space, meets multi-voltage outputs and can supply power for a photographing and video recording unit and the surrounding accessories.