An imaging method includes when an amount of incident light is less than a preset value, controlling a gimbal carrying an imaging device to enter a stabilization mode, controlling the imaging device to perform imaging with a second exposure duration longer than a first exposure duration. The imaging device is used to perform imaging with the first exposure duration when the amount of incident light is greater than the preset value.

The invention proposes the two-axis direct drive mechanical mechanism of a multi-sensor observation device for unmanned aerial vehicles. This is a mechanical mechanism to perform rotate pan-tilt axis by direct drive motor. This mechanism include main components: assembly pedestal, assembly pan-axis and assembly tilt-axis. Electronic circuits, encoders, mechanism, motor are optimized arranged and scientifically designed to the layout space and the weight of the structure. This mechanism can integrate optical sensors such as infrared cooling cameras, high resolution camera, laser rangefinder.

A controller calculates a focal length of an objective optical system on the basis of position information acquired by a position detector and outputs to a focusing unit a signal for moving a movable lens in a focus direction to make the focus of the objective optical system coincide with a focus point specified by a pointer. It is not necessary to equip an autofocus system to a surgical microscope, and automatic focusing is performed by using a navigation system.

A method for detecting a payload on a carrier configured to support the payload includes obtaining a obtaining at least one motion characteristic of the carrier. The at least one motion characteristic is indicative of a coupling state between the carrier and the payload. The method further includes assessing the coupling state between the carrier and the payload based on the at least one motion characteristic. Assessing the coupling state between the carrier and the payload includes at least one of assessing whether the payload is coupled to the carrier or assessing whether the payload is correctly mounted at the carrier.

A gimbal sleeve for connecting to a camera gimbal may float between a floor surface and a ceiling surface of an aerial vehicle chassis such that the gimbal sleeve has freedom of motion in yaw, pitch, and roll directions relative to the vehicle chassis. The gimbal sleeve may comprise a pair of connection points to the lower dampers on a floor surface of the vehicle chassis. The gimbal sleeve may furthermore comprise a ball joint coupled to a back surface of the vehicle chassis. The connection points include spring forces that enable the gimbal sleeve to return to an equilibrium position in response to external vibrations and reduce the magnitude of vibrations transferred from the aerial vehicle to the gimbal and camera systems.

Disclosed is an electronic motor with two bearings. The motor is structured so that, when loaded, the majority of the load (e.g., a radial load) is borne by one of the bearings. The bearing that bears a greater load may be larger and, thus, better suited for a heavy load. In some embodiments, the larger bearing may include rolling elements that have respective radii larger than respective radii of rolling elements of the other bearing by a ratio of at least 1.5 (150%). In some embodiments, the larger bearing may have an outer race with a radius that is greater than a radius of the outer race of the smaller bearing by a ratio of at least 1.5. In some embodiments, the motors may include a third bearing between the two bearings. The third bearing may reduce vibration in the motor.

A photographing device includes a housing, a fill light mounted at the housing, and a lens module mounted in the housing. Relative position and attitude of the fill light relative to the lens module are fixed. An optical axis of the fill light is approximately parallel to an optical axis of the lens module. The lens module and the fill light rotate together with the housing.

The present disclosure provides a method for controlling a handheld gimbal and a handheld gimbal. The method for controlling a handheld gimbal includes: upon rotation of a handheld gimbal, obtaining current attitude information of a photographing device and current attitude information of a handle; according to the current attitude information of the photographing device and the current attitude information of the handle, obtaining target attitude information of the photographing device; according to the current attitude information of the photographing device and the target attitude information, controlling a shaft joint of the handheld gimbal to rotate so that the attitude of the photographing device follows the attitude of the handle.

This gimbal device comprises: a driving unit in which a main board is disposed; a first housing coupled to the driving unit; a first motor disposed within the first housing; and a first connection unit electrically connected to the first motor. The first connection unit includes: a first region extending in a first circumferential direction along the outer circumferential surface of the first motor; a first bent region bent from the first region; and a second region extending from the first bent region in a second circumferential direction, wherein one among the first circumferential direction and the second circumferential direction is the clockwise direction, and the other is the counterclockwise direction.

A holding device is a holding device that holds the medical device, and includes an arm configured to have a holder, which holds the medical device, at a distal end, a base configured to rotatably support the arm by a first joint, a disk attached to the arm, and a brake attached to the base and configured to press the disk, in which a distance between a center of rotation of the disk and a region where the brake presses the disk is changed depending on a rotation angle of the first joint.