Abstract: A detection device for detecting a workpiece with multiple surfaces includes a rotary table carrying the workpiece and moving the workpiece by rotation and a plurality of photographing devices arranged at a plurality of different positions around the rotary table. Each photographing device has an image capture device capturing an image of a corresponding surface of the workpiece that is moved to the image capture device. An orientation of the image capture device is defined by a first offset angle and a second offset angle when the image capture device captures the image of the corresponding surface of the workpiece.

Abstract: A rolling light emitting diode screen device includes a plurality of equilong rigid supporting stripes, a plurality of pixel units which are disposed with a equal interval in a straight line on the rigid supporting stripes, electric signal lines and power lines connected to respective pixel units, and a control device. It is characterized that it further includes a flexible frame, and the plurality of rigid supporting stripes are aligned at both ends, and are disposed parallel with an equal interval on the flexible frame, so that a pixel matrix plane is formed on the rigid supporting stripes. The flexible frame engages the rigid supporting strips and the pixel units thereon to roll around an axis parallel to the axis of the rigid supporting stripes to form a reel. The rolling LED screen device of the invention is easy to be stored, transported and mounted, wirings thereof are easy to be disposed, not easy to be damaged, and easy to repair.

Abstract: The present invention relates to a power supply terminal of connecting devices of electrical conduction that includes an insulating terminal block. An earth wire connecting block, zero wire connecting block and two live wire connecting blocks are juxtaposed in said terminal block. Said earth wire connecting block, zero wire connecting block and two live wire connecting blocks respectively have the corresponding wiring input terminal and wiring output terminal.

Abstract: A rolling light emitting diode screen device includes a plurality of equilong rigid supporting stripes, a plurality of pixel units which are disposed with a equal interval in a straight line on the rigid supporting stripes, electric signal lines and power lines connected to respective pixel units, and a control device. It is characterized that it further includes a flexible frame, and the plurality of rigid supporting stripes are aligned at both ends, and are disposed parallel with an equal interval on the flexible frame, so that a pixel matrix plane is formed on the rigid supporting stripes. The flexible frame engages the rigid supporting strips and the pixel units thereon to roll around an axis parallel to the axis of the rigid supporting stripes to form a reel. The rolling LED screen device of the invention is easy to be stored, transported and mounted, wirings thereof are easy to be disposed, not easy to be damaged, and easy to repair.