An accessory mounting apparatus and system are provided. The system includes a structural framing, an accessory mounting apparatus, and an accessory. The accessory mounting apparatus includes a first component, a second component, and a connector arm. The first component includes a first base, a first rail connector that extends from the first base, and one or more first connectors. The second component includes a second base and a second rail connector that extends from the second base. The connector arm includes a second connector and a mounting arm, and the second connector is coupled to the one or more first connectors. Further, the first rail connector and the second rail connector are configured to engage a first rail slot and a second rail slot of the structural framing, accordingly. Additionally, the accessory is coupled to the mounting arm.

A head mounted device includes a ring-shaped mount unit for mounting the head mounted device on a head of a user, the ring-shaped mount unit including a first housing having a band portion on each of both sides thereof and a second housing having an engagement portion to be engaged with the band portion, and the ring-shaped mount unit being formed in a ring shape that enables enlargement and reduction of a circumference thereof by engagement of the band portion with the engagement portion. The head mounted device further includes a circumference holding unit, such as a torque limiter, configured to generate a holding force at least in a circumference enlargement direction of the ring-shaped mount unit.

Knuckle joint assembly for a medical device support system. The knuckle joint assembly includes a cartridge assembly that includes a cartridge housing and a rotary bearing. The cartridge housing includes a bore having a central axis and a bearing mount in the bore. The rotary bearing is press fitted in the bearing mount and configured to receive axially therethrough a spindle to rotatably support the spindle about the central axis. The knuckle joint assembly includes a retaining clip and a retaining pin. The retaining clip is selectively movable to disengage and engage a groove in a spindle to respectively support or release the spindle along a central axis. The retaining pin is movable between a first position to allow movement of the retaining clip between positions but prevent removal of the retaining clip, and a second position to block movement of the retaining clip from the engaged position.

Camera mounting assemblies and mounting plates. A mounting plate includes a body. The body includes a center portion. The body further includes an extension member extending away from the center portion in a coplanar direction. The body further includes a first mounting hole located on the extension member. The first mounting hole is configured to receive a first attachment. The body further includes a second mounting hole. The second mounting hole is located on the center portion and is configured to receive a second attachment, the second attachment being different than the first attachment. The body further includes an opening. The opening is located on the center portion and is configured to provide a path for an electrical conduit to be coupled to the second attachment.

Disclosed herein is a camera unit including a camera main body, and a stand configured to support the camera main body, in which the camera main body includes a light receiving section and a main body housing in which the light receiving section is accommodated, the stand includes a first arm portion configured to support the main body housing for pivotal motion such that an orientation in an upward and downward direction of an optical axis of the light receiving section is adjustable, and a second arm portion attached for pivotal motion to the first arm portion, and the main body hosing has a protrusion that projects downwardly at a lower portion of the camera unit in a use state of the camera unit.

A gear fine-tuning pan-tilt includes a rotating base, a roll worm support seat, a roll adjusting assembly, a pitch adjusting assembly, and a bearing seat arranged in sequence from bottom to top; the pitch adjusting assembly of the complete gear structure is located on the above, and the roll adjusting assembly located below adopts an arc-shaped rack structure, which reduces the interference to the pitching movement of the upper assembly and makes the height of the pan-tilt smaller. The arc opening of the arc-shaped rack faces upwards, so that the rotation axis is closer to the center axis of the lens. The upper and lower combination of the two structures strengthens the swing ability of the top of the pan-tilt in the limited size. The structure is able to be aimed at the subject through the rotating base, and leveled the left and right, and determined the pitch angle.

A ball head includes: a main body provided with ball body and fastener accommodating portions adjacent to each other in an up-and-down direction; a ball body provided with a threaded rod extending outward therefrom; and a fastener. The ball body and fastener accommodating portions are respectively formed with openings respectively extending upward and downward and having diameters respectively smaller than the diameters thereof, and communicated with an external space through a notch of the main body, wherein a fixing assembly is disposed at the notch. The notch can be expanded, such that the fastener and the ball body are respectively placed into the fastener and ball body accommodating portions. The notch can be further contracted by locking the fixing assembly tight and thus the ball body is non-rotatable, while the notch can also be expanded by loosening the fixing assembly and thus the ball body is rotatable.

A display device 20 includes: a hinge 91; a first monitor device 21 including a first front surface 22; and a second monitor device 31 including a second front surface 32. Parallel planes from a virtual second front surface on a rear side by predetermined distances at a first angle a to a third angle c between the first front surface 22 and the virtual second front surface are defined as first to third virtual planes E to G. A rotation axis X1 of the hinge 91 is disposed on anyone of these three virtual planes or inside a space formed by the three virtual planes in a view in a direction parallel to the rotation axis X1, and the second front surface 32 is disposed at a position away from the rotation axis X1 on a front side of the second monitor device 31 by a predetermined distance.

A stand for photographic equipment includes a connecting member, a pedestal, and a locking assembly connected therebetween. The locking assembly includes a support rod, a guiding member mounted around the support rod, a locking pin fixed on the support rod and engaged with the guiding member, a spring member located between the pedestal and the guiding member, and a driving member pivotally connected to the support rod. One end of the support rod and the connecting member are rotatably connected with each other by a universal ball. The locking assembly is configured to make the locking pin move along the guiding member to a first fixed position or a second fixed position by pressing the driving member. In the first fixed position, a top end of the guiding member abuts against and locks the connecting member. In the second fixed position, the guiding member releases the connecting member.

A wind turbine blade apparatus comprising a root device including: a base having an upper surface with a radius of curvature and configured to receive a root portion of a blade, with housings disposed on lateral sides of the base. The housings including a groove configured to receive a bearing and a shaft extending at least partially through the base and housing. A tip device is also provided which includes a base, a rotatable support frame having: a first support configured to receive a pressure side of a wind turbine blade, a second support configured to receive a suction side of a wind turbine blade, and an opening, the opening configured to receive a portion of a wind turbine blade.