A guiding device includes a first telescopic member, a second telescopic member, and an elastic member. The first telescopic member includes a main body with a sliding cavity. The second telescopic member includes a connecting portion and a guiding portion connected to the connecting portion. The guiding portion is slidably inserted into the sliding cavity. Opposite ends of the elastic member are respectively connected to the connecting portion and the main body. The elastic member pushes the main body in a direction away from the connecting portion. The disclosure also provides a mainboard connection structure having the above guiding device.

A multi-layer circuit board with embedded components (100) in multiple layers and miniaturized form, with embedded electronic elements in a higher element density and shorter voltage paths includes a circuit board (10) provided with a mounting groove (101), and a plurality of elements (20). The elements (20) are arranged in the mounting groove (101), and the circuit board (10) includes several vertically-stacked circuit substrates (11, 12, 13, 14) arranged around the mounting groove (101), The multi-layer circuit board with embedded components circuit board (100) includes a conductive member (30) arranged in the mounting groove (101) and electrically connecting the elements (20) and the layers of conductive circuits.

A method of manufacture and an integrated functional multilayer structure, includes a substrate film formed or formable so as to exhibit a selected shape; and a number of functional, preferably including optical, mechanical, optoelectrical, electrical and/or specifically, electronic, elements, such as conductors, insulators, components and/or integrated circuits, provided upon the substrate film in the proximity of the shape; wherein the substrate film has further been provided with a structural tuning element, optionally including an elongated, circumferential or other selected shape, said structural tuning element being configured to locally control induced deformation, optionally including stretching, bending, compression and/or shearing, of the substrate film within said proximity of the shape.

A surgical instrument is disclosed having an elongated body portion having a proximal end and a distal end. The body portion is formed from a plastically deformable material such that the body portion can be bent between the proximal and distal ends from a first configuration to a second bent configuration and maintains the bent configuration. A flexible circuit having at least a pair of lead wires disposed around the body portion. The pair of lead wires are configured to conform to the bent configuration of the body portion such that they do not break during bending of the body portion. A tracking device adapted to cooperate with a navigation system to track the distal end of the instrument is coupled to the flexible circuit.

A fixing device includes a circuit board, an insertion slot, and a fixing bracket. The circuit board has a peripheral recess, and the insertion slot is disposed on the circuit board. The fixing bracket is fixed in the peripheral recess, and the fixing bracket has a board, two lateral arms, and two guiding rails. The two lateral arms are connected to two corresponding sides of the board, and the two lateral arms are integrally formed from the board. In addition, the two guiding rails are respectively disposed at the two lateral arms, in which the two guiding rails extend towards the insertion slot.

Embodiments of the invention include LED lighting systems and methods. For example, in some embodiments, an LED lighting system is included. The LED lighting system can include a flexible layered circuit structure that can include a top thermally conductive layer, a middle electrically insulating layer, a bottom thermally conductive layer, and a plurality of light emitting diodes mounted on the top layer. The LED lighting system can further include a housing substrate and a mounting structure. The mounting structure can be configured to suspend the layered circuit structure above the housing substrate with an air gap disposed in between the bottom thermally conductive layer of the flexible layered circuit structure and the housing substrate. The distance between the layered circuit structure and the support layer can be at least about 0.5 mm. Other embodiments are also included herein.

An electronic device is disclosed. The electronic device includes: a flexible printed circuit board configured to connect a first printed circuit board and a second printed circuit board and including a rigid area and a flexible area, and a guide at least partially coupled to the rigid area, and located inside the flexible printed circuit board.

Embodiments of the invention include LED lighting systems and methods. For example, in some embodiments, an LED lighting system is included. The LED lighting system can include a flexible layered circuit structure that can include a top thermally conductive layer, a middle electrically insulating layer, a bottom thermally conductive layer, and a plurality of light emitting diodes mounted on the top layer. The LED lighting system can further include a housing substrate and a mounting structure. The mounting structure can be configured to suspend the layered circuit structure above the housing substrate with an air gap disposed in between the bottom thermally conductive layer of the flexible layered circuit structure and the housing substrate. The distance between the layered circuit structure and the support layer can be at least about 0.5 mm. Other embodiments are also included herein.

An optical unit may include a movable body having an optical module, a fixed body, a support mechanism which turnably supports the movable body with respect to the fixed body with one or a plurality of directions intersecting an optical axis direction as a direction of a turning axis, and a flexible wiring board whose one end is connected with a connection part provided in the movable body and which is provided with a flat face region facing the optical axis direction. The flat face region is disposed on a side in a first intersecting direction intersecting the optical axis direction with respect to the movable body and is provided with a curved part curved without overlapping in the optical axis direction and is structured so that at least a part of the flat face region is overlapped with a position of the turning axis in the optical axis direction.

A connector includes a flat-plate housing made of insulating resin and including a first positioning hole and a second positioning hole, a plurality of contacts held on the housing, and a first hold-down and a second hold-down made of metal and disposed to correspond to a first positioning hole and a second positioning hole, respectively. The housing includes a CPU board opposed surface to be opposed to a CPU board. The first hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding first positioning hole. The second hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding second positioning hole.