Abstract: A vehicle lamp has a lamp housing, a light-emitting device, a fan, and an auxiliary heater located within the lamp housing. The lamp housing has a lamp cover and an airflow circulating structure inside the lamp housing to form a circulation passage therein. The circulation passage corresponds to a main transmitting area of the lamp cover in position. Airflow, generated by the fan, inside the circulation passage is heated by the auxiliary heater and at least one light-emitting diode module of the light-emitting device. The main transmitting area is heated by heated airflow. Accordingly, the snow attached onto the main transmitting area are is removed rapidly and efficiently to let light emitted by the light-emitting device pass through the main transmitting area free from being blocked by the snow.

Abstract: A nonlinear optical assembly of alert light has two nonlinear optical halves obtained by symmetrically dividing the nonlinear optical assembly along an optical reference plane. Each optical half has a base, which takes a nonlinear and curved form with one side thereof corresponding to the optical reference plane and having a junction surface. A light entrance portion and a light exit portion are on two opposite sides of the optical reference plane. The two optical halves are assembled to form the nonlinear optical assembly with the junction surfaces therebetween. The nonlinear optical assembly reduces molding and manufacturing requirements. Given the light exit portions of the optical halves, each light entrance portion corresponds to multiple bulged portions for the nonlinear optical assembly to provide uniform lighting effect.

Abstract: A detachable warning lamp has a base, a light-emitting module disposed on the base, and a cover disposed on the base. The base has two retaining walls and two engaging grooves. The light-emitting module has a circuit board disposed on the base and multiple light-emitting elements. The light-emitting elements are electrically connected to the circuit board and are respectively detachably disposed on the base. Each one of the light-emitting elements has a first engaging portion inserted into a corresponding one of the two engaging grooves, multiple first cushioning lugs abutting a corresponding one of the two retaining walls, a second engaging portion, and multiple second cushioning lugs. The cover has two baffles abutting the second cushioning lugs and two stopping surfaces abutting the second engaging portion. The light-emitting elements are detachably engaged on the base without the use of a screw and a hand tool.

Abstract: A nonlinear optical assembly of an alert light has two nonlinear optical halves obtained by symmetrically dividing the nonlinear optical assembly along an optical reference plane wherein each optical half has a base, which takes a nonlinear and curved form with one side thereof corresponding to the optical reference plane and having a junction surface, a light entrance portion and a light exit portion are on two opposite sides of the optical reference plane, and the two optical halves are assembled to form the nonlinear optical assembly with the junction surfaces therebetween. Given the light exit portions of the optical halves, each light entrance portion corresponds to multiple bulged portions for the nonlinear optical assembly to provide uniform lighting effect. The nonlinear optical assembly reduces molding and manufacturing requirements.

Abstract: A nonlinear optical assembly of alert light has two nonlinear optical halves obtained by symmetrically dividing the nonlinear optical assembly along an optical reference plane. Each optical half has a base, which takes a nonlinear and curved form with one side thereof corresponding to the optical reference plane and having a junction surface. A light entrance portion and a light exit portion are on two opposite sides of the optical reference plane. The two optical halves are assembled to form the nonlinear optical assembly with the junction surfaces therebetween. The nonlinear optical assembly reduces molding and manufacturing requirements. Given the light exit portions of the optical halves, each light entrance portion corresponds to multiple bulged portions for the nonlinear optical assembly to provide uniform lighting effect.

Abstract: An LED lighting assembly for a school bus lamp has a reflector and an LED module. The reflector has a base, a reflecting wing, and a connector. The reflecting wing is formed around the base. The connector is formed on the base. The LED module is mounted on the reflector and has at least one LED. The LED lighting assembly can be mounted on the seat of the school bus lamp by the connector and is covered with the lampshade of the school bus lamp. The LED lighting assembly can be directly mounted on the seat of the school bus lamp for reducing the replacement cost, and a lighting element of the school bus lamp is replaced by the LED lighting assembly. So the LED lighting assembly is suitable for the seat and the lampshade of the school bus lamps.

Abstract: An optical assembly of alert light has two optical halves obtained by symmetrically dividing the optical assembly along an optical reference plane. Each optical half has a base with one side corresponding to the optical reference plane and having a junction surface. A light entrance portion and a light exit portion are on two opposite sides of the optical reference plane. The two optical halves are assembled to form the optical assembly of alert light with the junction surfaces of the two optical halves attached to each other. Accordingly, the structural simplification of the divided optical halves facilitates the molding of the optical halves and reduces limitations in manufacturing the optical halves, thereby satisfying the demands of different light form, light projection angles and product shapes in generating diversified alert lights.

Abstract: A nonlinear optical assembly of an alert light has two nonlinear optical halves obtained by symmetrically dividing the nonlinear optical assembly along an optical reference plane wherein each optical half has a base, which takes a nonlinear and curved form with one side thereof corresponding to the optical reference plane and having a junction surface, a light entrance portion and a light exit portion are on two opposite sides of the optical reference plane, and the two optical halves are assembled to form the nonlinear optical assembly with the junction surfaces therebetween. Given the light exit portions of the optical halves, each light entrance portion corresponds to multiple bulged portions for the nonlinear optical assembly to provide uniform lighting effect. The nonlinear optical assembly reduces molding and manufacturing requirements.

Abstract: An optical assembly of alert light has two optical halves obtained by symmetrically dividing the optical assembly along an optical reference plane. Each optical half has a base with one side corresponding to the optical reference plane and having a junction surface. A light entrance portion and a light exit portion are on two opposite sides of the optical reference plane. The two optical halves are assembled to form the optical assembly of alert light with the junction surfaces of the two optical halves attached to each other. Accordingly, the structural simplification of the divided optical halves facilitates the molding of the optical halves and reduces limitations in manufacturing the optical halves, thereby satisfying the demands of different light form, light projection angles and product shapes in generating diversified alert lights.

Abstract: An add-on vehicle warning apparatus has at least one add-on load and an inter-control module. The inter-control module has a power pin, a ground pin, a first signal input pin and a second signal input pin respectively connected to a CAN BUS system of a vehicle. The inter-control module can receive a control signal and a DC voltage from the CAN BUS system to activate the add-on load according to the control signal. The warning apparatus of the present invention is connected to the CAN BUS system of the vehicle through only four wires. Therefore, the wire layout of the present invent is simplified and is easy to be installed on the vehicle.

Abstract: A multi-channel and feedback-controlled light apparatus has a transmitter unit and a receiver unit. The transmitter unit sends out a wireless signal through at least one channel to the receiver unit. When the receiver unit receives the wireless signal, the receiver unit correspondingly sends a response signal back to the transmitter unit. If the transmitter unit does not receive the response signal, the transmitter unit will switch to new channels to send the wireless signal to the receiver unit at new channels until the transmitter unit receives the response signal. Therefore, the receiver unit can correctly receive the wireless signal and overcomes the signal missing problem induced by channel interferences. The light apparatus increases the wireless signal transmission effect.

Abstract: The present invention provides a ceiling light composed of a base, a cover, a shade seat, a shade cover, a shade, an adjusting seat and other elements. The base is circle shape and has a recessed section defined therein which holds the shade seat therein. An elongated arcuate hole is defined in the shade with an upper washer and a lower washer. A spring is secured between the lower washer and the recessed section, and the upper washer, shade seat, the lower washer, the spring and the base are held together by a rivet. After the shade cover has been directly fastened on the upper end of the shade, the illumination direction can be changed by pushing the shade cover. Thereby, not only can the illumination direction of the light be easily adjusted to any direction, but also the wires can not be tangled together.

Abstract: A jack assembly includes two lower arms each having an upper end portion and a lower end portion pivotally attached to a base, two upper arms each having an upper end portion pivotally mounted to a support bracket and a lower end portion pivotally mounted to the upper end portion of one of the two respective lower arms, a drive shaft having two end portions each rotatably extending through the connection of the lower end portion of one of the two respective upper arms and the upper end portion of one of the two respective lower arms, and an drive device including a drive gear train driven by a motor so as to rotate the drive shaft electrically, and a drive nut driven by a tool such as a socket so as to rotate the drive shaft manually. In such a manner, the jack assembly can be operated manually or electrically.