Provided is an image acquisition apparatus. The image acquisition apparatus includes: a moving member, a lifting member, and an image acquisition member. The moving member can move on a bearing surface; the lifting member is provided on the moving member; the image acquisition member is movably connected to the lifting member; the image acquisition member can move in a first direction parallel to the axis of the lifting member, and/or can move in a second direction vertical to the first direction.

A target stand having a base, a vertical beam extending upwardly from the base, a crossbeam, a locking and rotation assembly having a first portion engaged for vertical movement with the vertical beam and a second portion attached to the crossbeam, the first portion attached to the second portion with a pivot bolt, wherein the crossbeam is configured to be disposed in a first locked horizontal position using the locking and rotation assembly, and wherein the crossbeam is rotatable about the pivot bolt to move into a first non-horizontal position.

A floating mechanism (300) and an ultrasonic diagnostic apparatus. The floating mechanism (300) and the ultrasonic diagnostic apparatus can implement the direct superposition of lifting movements and rotational movements, so that the floating mechanism (300) can move in more directions. In addition, a lifting structure and a rotation structure in the floating mechanism (300) are integrally linked in design, accordingly, the link performance is good, the response is fast, the occupied space is small, and the operation range is great.

The present disclosure relates to an electrically controlled sliding apparatus for photographic equipment, comprising: a controlling component, comprising a power supply and a slider controlling component electrically connected with the power supply; a guiding component; and a sliding component electrically connected with the controlling component and slidably mounted on the guiding component, the sliding component comprising: a rotation component for providing rotation movement; wherein the controlling component further comprises a first conducting part electrically connected with the power supply and the sliding component, the controlling component is configured to supply power to the rotation component through the first conducting part, and wherein the first conducting part comprises a first connecting section and a second connecting section respectively connected with the controlling component and the sliding component.

The present invention relates to a member for a chair for implementing a multi-channel sound system and a chair including the member, and more particularly, to a member for a chair, the member having a plurality of speakers installed therein to implement a multi-channel sound system and installed in a chair to provide sound environments having a sense of space and a three-dimensional effect to a user who sits in the chair, and a chair including the member.

An extendable hardware mount is disclosed. The mount includes a bracket and a rail system allowing the bracket to move between an extended position and a contracted position. The bracket may be detachable from the rail system. The bracket may include a securement system providing at least one securement location for equipment.

The present invention relates to the field of vehicle correction, and provides a calibration system and a calibration bracket thereof. The calibration bracket includes: a base, a stand assembly and a beam assembly. The stand assembly is fixedly connected to the base. The beam assembly is supported by the stand assembly, and includes a beam, the beam being configured to mount a calibration element and including a left beam portion, a right beam portion and a connecting portion, the connecting portion being supported by the stand assembly, one end of the connecting portion being pivotally connected to the left beam portion, and the other end of the connecting portion being pivotally connected to the right beam portion. In the foregoing structure, the left beam portion and the right beam portion can respectively rotate toward each other relative to the connecting portion, to fold the beam assembly, so that a volume of the calibration bracket can be reduced to facilitate shipment.

A mount assembly including a rail, a mount configured to secure the rail to a surface, a laser assembly. The laser assembly includes a laser projector. The laser assembly is slidable along the rail.

The present disclosure relates to an electrically controlled sliding apparatus for photographic equipment and a locking assembly thereof. The locking assembly for the electrically controlled sliding apparatus includes a fixed base mounted on the electrically controlled sliding apparatus and a locking fitting mounted on the fixed base. A driven member of the electrically controlled sliding apparatus is mounted within the fixed base. The locking fitting is capable of rotating relative to the fixed base after being pressed against the fixed base, so as to lock or unlock the driven member. The locking assembly for the electrically controlled sliding apparatus provided by the present disclosure is convenient to operate and simple in structure, and is capable of achieving that the sliding block is rapidly locked or unlocked on the guiding rail.

Display and audio systems and methods for controlling positioning of displays and speakers based on viewer and listener attention are disclosed. According to an aspect, a display system includes a selectively adjust a viewing angle of a display for one or more viewers. The display system also includes a motorized mechanism that controllably positions the display in one of the positions. An attention detection system is configured to acquire movement and position data of the viewer(s). The attention detection system is also configured to determine whether attention of the viewer(s) is directed to the display based on the acquired data. Further, the attention detection system is configured to control the support assembly to adjust the viewing angle of the display for viewing by the viewer(s) in response to determining that the attention of the viewer(s) is directed to the display.