Abstract: A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation.

Abstract: An air cooling LED lamp is disclosed. The lamp has air passages for natural air flow for cooling the lamp without using any electric fan to reduce electric energy consumption. The air passages still work for natural air cooling for the lamp when the lamp is configured either in a top down position or in a lateral position.

Abstract: A LED lamp is disclosed which is composed of a plurality of light unit, each of the light unit has metal its leads inserted into a heat sink for heat dissipation. A circuit board is optionally to use for electrically coupling the metal leads of each light unit to a control circuit for controlling the on/off of each of the light units.

Abstract: A high heat dissipation efficiency light emitted diode (LED) bulb is disclosed, a plurality of metal plate configured side by side to form a circular metal wall, light unit is mounted on top end of the metal plate. A side opening is made on a bottom of selected metal plate. A glass bulb encloses the metal plate and the light unit hermetically. A gas with a thermal conductivity higher than that of air, such as Helium gas, is filled in the glass bulb for an internal circulation and heat dissipation of the bulb.

Abstract: A lubricating device with heating function is provided with a heat conduction member between the lubricating device and the movable member, the heat conduction member absorbs the heat generated by the motion of movable member and transmits the heat to the oil tank, so as to reduce the viscosity of the lubrication stored in the oil tank, and consequently, the heated and reduced-in-viscosity lubrication can easily be absorbed by the oil guiding member by capillary action. When the movable member stops moving, the temperature of the lubrication returns to normal and no capillary action will occur, therefore, the lubricating device is capable of controlling start and stop of the action of lubrication transmission by itself without using any other control device, and thus preventing lubrication leakage.

Abstract: An air cooling LED lamp is disclosed. The lamp has air passages for natural air flow for cooling the lamp without using any electric fan to reduce electric energy consumption. The air passages still work for natural air cooling for the lamp when the lamp is configured either in a top down position or in a lateral position.

Abstract: An air cooling LED lamp is disclosed. The lamp has air passages for natural air flow for cooling the lamp without using any electric fan to reduce electric energy consumption. The air passages still work for natural air cooling for the lamp when the lamp is configured either in a top down position or in a lateral position.

Abstract: An air cooling LED lamp is disclosed. The lamp has air passages for natural air flow for cooling the lamp without using any electric fan to reduce electric energy consumption. The air passages still work for natural air cooling for the lamp when the lamp is configured either in a top down position or in a lateral position.

Abstract: A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation.

Abstract: A ball screw comprises a screw, a nut, two return assemblies and a rolling assembly. The two return assemblies are disposed in two ends of the nut, and each of the return assemblies is defined with a return passage provided with two guiding grooves at two sides thereof for guiding the linking portions of the rolling assembly. The guiding grooves twist an angle of about 90 degrees within the return portion of each of the return assemblies to prevent the linking portions from being stretched or extruded improperly to reduce the deformation to the lowest, thus effectively extending the service life of the rolling assembly.

Abstract: A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation.

Abstract: A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation.

Abstract: A circulating element for ball screw includes a first surface defining a circulating passage that extends from one lateral side of the first surface to the other lateral side of the first surface and has a coupling mouth located on each of the two opposite ends thereof, and a second surface defining a coupling groove between the two coupling mouths of the circulating passage and two guide blocks respectively protruding out of the coupling mouths of the circulating passage. Thus, the circulating element has the advantages of low processing cost, ease of installation, high alignment accuracy, and excellent running smoothness.

Abstract: A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation.

Abstract: A panorama lamp with 360 degree peripheral illumination with reference to an axis of the lamp is disclosed. Each of the light units mounted on a heat sink has a light chip facing outward from the lamp. Either a protection cap or a circular wall lens can be optionally adopted to cap the top of the lamp. The protection cap provides protection to the chips of the lamp from being damaged. The circular wall lens modifies the beam profile of the lamp to meet various market requests.

Abstract: The invention provides an external circulation type ball screw device comprising screw shaft and nut having first and second screw grooves. A circulation member comprises first leg, second leg and connection portion. The first leg comprises a first end surface having first inner and outer points, and the second leg comprises a second end surface having second inner and outer points; first and second entrances formed on the first and second end surfaces of circulation passage; first and second thickness respectively provided between the first entrance and the first inner and outer points thereof; the second thickness being greater than the first; the third and fourth thickness respectively provided between the second entrance and the second inner and outer points thereof; the fourth thickness being greater than the third. The groove wall of the second screw groove occupied and the occurrence of broken teeth of the nut are reduced.

Abstract: A LED tube having double heat sinks is disclosed. One of the embodiment shows a first plurality of light unit is fixed onto the top heat sink, and a second plurality of light unit is fixed onto the bottom heat sink, while with the light chips configured in between the two heat sinks for light emission to the ambient.

Abstract: A light source device having a good heat dissipation capability is disclosed, in which heat generated by a light emitting device is conducted to a base fabricated by a porous material through a heat conducting mask or a heat conducting pipe. Due to a large area contact between the heat conducting mask or the heat conducting pipe and the base, the heat can be evenly conducted to the base, so that the base can absorb the heat and dissipate the heat to external, so as to improve a heat dissipation efficiency. Moreover, in the light source device of the disclosure, heat exchange of the light emitting device can be directly carried on through air convection, so that the heat generated by the light emitting device can be taken away from the light source device through heat exchange of cool air.

Abstract: The present invention discloses an LED lamp which has a light guide with a total internal reflection (TIR) surface. A light modification layer comprising either a pure component or a mixture of the component selected from a group consisted of a yellow phosphor, a red phosphor, a green phosphor, a blue phosphor, and a reflective material is optionally adopted. The light beam is modified by the light modification layer before going out of the lamp. A blue light is one of the candidates which can be adopted as the light source.

Abstract: The present invention discloses an LED lamp which has a light guide with a total internal reflection (TIR) surface. A light modification layer comprising either a pure component or a mixture of the component selected from a group consisted of a yellow phosphor, a red phosphor, a green phosphor, a blue phosphor, and a reflective material is optionally adopted. The light beam is modified by the light modification layer before going out of the lamp. A blue light is one of the candidates which can be adopted as the light source.