Abstract: An electrical connector (100) includes an insulative housing (1) comprising an engaging portion (12) which comprises a pair of side walls (121) and a pair of end walls (122), a plurality of signal terminals (2) arranged along the pair of the side walls (121) and at least one power terminals (3) located at each end wall (122). The end wall (122) defines at least one groove (120) extending along a mating direction at an outside thereof to receive and retain the at least one power terminal (3).

Abstract: An electrical connector (100) assembled to a printed circuit board (5) for connecting with a mating connector, includes a longitudinal insulative housing (1) and a plurality of contacts (2, 3) received in the housing. Each of the contacts (2, 3) defines a retaining section (20, 30), a contacting portion (21) extending forwards from the retaining section for contacting with the mating connector and a compressing portion (220, 320) extending rearwards from the retaining section for connecting to the printed circuit board. The compressing portions are arranged in two rows, and the compressing portions nip and elastic compress against the printed circuit board instead of being soldered thereto to connect the electrical connector to the printed circuit board steadily.

Abstract: An electrical connector (100) includes an insulating housing (1) defining a front end portion and a rear end portion. At least one row of terminals (2) are retained in the housing (1) with tail portions (22) extending out of the rear end portion of the housing. A positioning device includes a first member integrally defined from the rear end portion of the housing and a second member (3) separately from the housing (1). The tail portions (22) of the terminals (2) are firstly pre-positioned by the first member and then positioned by the second member (3) of the positioning device when the second member is assembled on the housing.

Abstract: An electrical connector (100) includes an insulating housing (1) defining a front end portion and a rear end portion. At least one row of terminals (2) are retained in the housing (1) with tail portions (22) extending out of the rear end portion of the housing. A positioning device includes a first member integrally defined from the rear end portion of the housing and a second member (3) separately from the housing (1). The tail portions (22) of the terminals (2) are firstly pre-positioned by the first member and then positioned by the second member (3) of the positioning device when the second member is assembled on the housing.

Abstract: A level (100) includes a light source (10) and a cone-shaped reflecting element (40) with reflecting surface for reflecting light beam from the light source to produce a circumferential leveling plane. The light source is arranged adjacent to the peak of the cone-shaped reflecting element, and on the center axis of the cone-shaped reflecting element.

Abstract: A level adjusting device includes a base, first and second posts standing upright from the base, a first push lever movable in a vertical direction, a second push lever movable in the vertical direction, a pivot post standing upright from the base and spaced apart from the first and second posts, first and second pivot pins extending in a transverse direction relative to the vertical direction, a pivot block pivoted to the pivot post through the first pivot pin, a carrier plate connected to the first and second push levers and pivoted to the pivot block through the second pivot pin, and a biasing unit disposed between and connected to the carrier plate and the base.

Abstract: A level adjusting device includes a base, first and second posts standing upright from the base, a first push lever movable in a vertical direction, a second push lever movable in the vertical direction, a pivot post standing upright from the base and spaced apart from the first and second posts, first and second pivot pins extending in a transverse direction relative to the vertical direction, a pivot block pivoted to the pivot post through the first pivot pin, a carrier plate connected to the first and second push levers and pivoted to the pivot block through the second pivot pin, and a biasing unit disposed between and connected to the carrier plate and the base.

Abstract: A level (100) includes a light source (10) and a cone-shaped reflecting element (40) with reflecting surface for reflecting light beam from the light source to produce a circumferential leveling plane. The light source is arranged adjacent to the peak of the cone-shaped reflecting element, and on the center axis of the cone-shaped reflecting element.

Abstract: A laser level includes a pair of level units arranged side by side and disposed in different oriented directions. Each laser level includes a laser light source adapted to emit a laser beam, a beam splitter adapted to simultaneously split the beam into first and second light beams along perpendicular first and second directions, and a first and a second aspheric-cylindrical lenses respectively arranged in the first and the second directions. The first and the second aspheric-cylindrical lenses have two optical axes respectively extending along the first and second directions.

Abstract: A signal sampling circuit of a tilt sensor, suitable to be used in a tilt sensor, is described. The signal sampling circuit has a signal-generating module, a sample and hold module, and a differential module. The signal-generating module regularly generates a plurality of level-measuring signals in equal intervals, and alternately and multi-directionally sends them to the first input pin and the second input pin of the tilt sensor in turn, respectively. Then, the tilt sensor outputs in order the corresponding first and second output signal. The sample and hold module samples and holds the first and the second output signal in turn, and outputs the first and the second sampling signals, respectively. The differential module receives and differentiates the first and the second sampling signals, and outputs a level-estimating-result signal to a micro controller unit to derive the tilt information of one direction.