Abstract: A feed horn for a Low Noise Block down converter is disclosed. The feed horn includes a conical body for gathering satellite signals and a connector coupled to the conical body for coupling the feed horn to a waveguide of the Low Noise Block down converter to transmit the satellite signals to the waveguide. The conical body includes a plurality of corrugations, one of the plurality of corrugations includes a plurality of first openings, and a plurality of second openings, each of the plurality of second openings is formed between the two adjacent first openings, wherein the plurality of first openings and the plurality of second openings are used as slits to induce an interference effect to adjust a beam pattern of the feed horn.

Abstract: A waveguide filter is provided. The waveguide filter includes a pipe and a first rib structure. The pipe includes a first inner wall. The first rib structure includes a first rib. The first rib is disposed in the pipe and formed on the first inner wall. The first rib includes a first section and a second section, wherein the first section and the second section extend on a first straight line and are perpendicular to the first inner wall, and a first gap is formed between the first section and the second section, and a first gap distance of the first gap is between 0.1 to 1.2 mm.

Abstract: A feed horn for a Low Noise Block down converter is disclosed. The feed horn includes a conical body for gathering satellite signals and a connector coupled to the conical body for coupling the feed horn to a waveguide of the Low Noise Block down converter to transmit the satellite signals to the waveguide. The conical body includes a plurality of corrugations, one of the plurality of corrugations includes a plurality of first openings, and a plurality of second openings, each of the plurality of second openings is formed between the two adjacent first openings, wherein the plurality of first openings and the plurality of second openings are used as slits to induce an interference effect to adjust a beam pattern of the feed horn.

Abstract: A position adjustment device for a satellite antenna includes a holder fixed on a supporting arm of the satellite antenna, and an axis rotation bracket disposed to the holder. The holder has a first connecting part. The axis rotation bracket rotates around a focal axis of the satellite antenna and comprises a bracket body where a low noise block down-converter with integrated feed (LNBF) of the satellite antenna is fixed, an arc slot disposed to the bracket body wherein a circular center thereof is on the focal axis, and a first positioning element passing through the first connecting part and the arc slot, for connecting the axis rotation bracket to the holder, and positioning the holder and the axis rotation bracket along the arc slot relatively.

Abstract: A three-dimensional positioning device for minimally invasive surgery includes a base, two angle adjustable assemblies, an arc, a sliding assembly, a first positioning assembly, a second positioning assembly and a third positioning assembly. The base includes two first frames and two second frames. Two ends of each second frame are connected to the first frames respectively. Each first frame has a pivotal member. The angle adjustable assemblies are pivotably connected to the pivotal member of the first frame respectively. The arc includes a hollow track member. The angle adjustable assemblies are connected to two ends of the arc. The sliding assembly is mounted on the track member of the arc according to a predetermined position of a nidus. Therefore, the three-dimensional positioning device can effectively improve precision and operation more precisely in minimally invasive surgery to increase surgery success rate.

Abstract: A lighting device includes a lighting unit, a base, a lighting trim, a connecting unit, at least one pull rope, and a plurality of resilient latching members and linking members. The base and the lighting trim are disposed on respective ends of the lighting unit. The base has a receiving hole formed thereon. At least one hole is formed on a flange portion of the lighting trim and is corresponding to the at least one pull rope. The connecting unit is received by the receiving hole and connected between one end of the pull rope and the resilient latching members. The other end of the pull rope is passed through the hole. The resilient latching members are disposed around the base and corresponding to the respective linking members.

Abstract: A luminaire includes a first body module, a light module, a second body module, a wire-receiving unit, and a wire. The light module is disposed on said first body module. The second body module is movable telescopically relative to the first body module. The wire has two ends respectively and electrically connected to the first and second body modules, and a portion that is received within the wire-receiving unit and that is movable at least partially into or out of the wire-receiving unit as a result of adjusting the length of the luminaire, thereby preventing entanglement of the wire.

Abstract: A light-emitting diode module includes a transparent base, a support and a plurality of light-emitting chips. The base has a plurality of cavities separated from each other by a predetermined distance in order to respectively receive the light-emitting chips to form light-exiting areas. The base has a reflecting portion opposite to the cavities. The reflecting portion is at least one inclined plane for reflecting light that have projected outside walls of the cavities to the peripheral area of the light-emitting areas in order to increase the uniformity of the light source. In addition, the light-emitting chips are arranged to form a line or surface light source of any sizes by adjusting the numbers of the cavity and the light-emitting chips.

Abstract: A lamp includes a housing, a plate body disposed in the housing and having a wavelength-conversion material, a light-emitting module disposed in the housing and spaced apart from the plate body, and a light sensor disposed on the plate body. The light-emitting module includes a circuit board, and a plurality of light-emitting units disposed on the circuit board and emitting light onto the plate body. The light sensor is used for sensing the color temperature of light that is emitted from the light-emitting units and that propagates within the plate body.

Abstract: A lamp includes a lamp holder module and light-emitting module disposed in the lamp holder module. The lamp holder module includes a body, a pressing mechanism disposed on the body, and an upper cover engaging removably the body. The light-emitting module is placed on the body and is pressed into position through the pressing mechanism. The pressing mechanism is operable to release the light-emitting module, thereby facilitating removal and installation of the light-emitting module. The upper cover serves as a lens of the light-emitting module and covers the light-emitting module.

Abstract: A lighting device includes a base, a light source, an optical color wheel, and a lens. The base has a plurality of fins for heat dissipation. The light source is disposed in the base, and the optical color wheel is disposed above the light source and in contact with the base. The lens is movably disposed on the base. The Light from the light source passes through the optical color wheel to form colored light. The colored light passes through the lens to form a light beam. Heat generated by the light source and the optical color wheel is dissipated by the fins.

Abstract: A beamwidth adjustment device, which is used for a feedhorn comprising an opening and a ring encircling the opening, comprises a conductor used for adjusting beamwidth formed by the feedhorn according to a characteristic of a dish of a satellite antenna corresponding to the feedhorn, and a fixing element used for fixing the conductor to the feedhorn, wherein the satellite antenna is used for receiving signals from the feedhorn.

Abstract: A position adjustment device for a satellite antenna includes a holder fixed on a supporting arm of the satellite antenna, and an axis rotation bracket disposed to the holder. The holder has a first connecting part. The axis rotation bracket rotates around a focal axis of the satellite antenna and comprises a bracket body where a low noise block down-converter with integrated feed (LNBF) of the satellite antenna is fixed, an arc slot disposed to the bracket body wherein a circular center thereof is on the focal axis, and a first positioning element passing through the first connecting part and the arc slot, for connecting the axis rotation bracket to the holder, and positioning the holder and the axis rotation bracket along the arc slot relatively.

Abstract: A light emitting diode of the present invention comprises a support frame, a shell, a light emitting diode chip and an encapsulating body. The shell is used to accommodate the support frame. The shell has a bowl-shaped structure and the bowl-shaped structure has two opposite first walls and two opposite second walls. The upper edge of the second wall is a concave-convex structure. The encapsulating body is used to package the bowl-shaped structure and the encapsulating body has a concave-convex structure similar to the concave-convex structure of the bowl-shaped structure. The concave-convex structure comprises a concave portion and a convex portion. The structure of the light emitting diode is simplified. The luminous intensity and the light extraction efficiency of the light emitting diode are enhanced and the thickness of the light emitting diode is not increased.

Abstract: A lamp includes a lamp holder module and light-emitting module disposed in the lamp holder module. The lamp holder module includes a body, a pressing mechanism disposed on the body, and an upper cover engaging removably the body. The light-emitting module is placed on the body and is pressed into position through the pressing mechanism. The pressing mechanism is operable to release the light-emitting module, thereby facilitating removal and installation of the light-emitting module. The upper cover serves as a lens of the light-emitting module and covers the light-emitting module.

Abstract: A three-dimensional positioning device for minimally invasive surgery comprising: a base, two angle adjustable assemblies, an arc, a sliding assembly, a first positioning assembly, a second positioning assembly and a third positioning assembly. The base includes two first frames and two second frames. Two ends of each second frame connected to the first frames respectively. Each first frame has a pivotal member. The angle adjustable assemblies are pivotably connected to the pivotal member of the first frame respectively. The arc includes a hollow track member. The angle adjustable assemblies are connected to two ends of the arc. The sliding assembly is mounted on the track member of the arc according to a predetermined position of a nidus. Therefore, the three-dimensional positioning device can effectively improve the precision and operate more precisely in the minimally invasive surgery to increase the surgery success rate.

Abstract: A light-emitting diode module includes a transparent base, a support and a plurality of light-emitting chips. The base has a plurality of cavities separated from each other by a predetermined distance in order to respectively receive the light-emitting chips to form light-exiting areas. The base has a reflecting portion opposite to the cavities. The reflecting portion is at least one inclined plane for reflecting light that have projected outside walls of the cavities to the peripheral area of the light-emitting areas in order to increase the uniformity of the light source. In addition, the light-emitting chips are arranged to form a line or surface light source of any sizes by adjusting the numbers of the cavity and the light-emitting chips.

Abstract: A light emitting diode of the present invention comprises a support frame, a shell, a light emitting diode chip and an encapsulating body. The shell is used to accommodate the support frame. The shell has a bowl-shaped structure and the bowl-shaped structure has two opposite first walls and two opposite second walls. The upper edge of the second wall is a concave-convex structure. The encapsulating body is used to package the bowl-shaped structure and the encapsulating body has a concave-convex structure similar to the concave-convex structure of the bowl-shaped structure. The concave-convex structure comprises a concave portion and a convex portion. The structure of the light emitting diode is simplified. The luminous intensity and the light extraction efficiency of the light emitting diode are enhanced and the thickness of the light emitting diode is not increased.

Abstract: A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM.

Abstract: A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM.