5 results about "High power leds" patented technology

A high power LED array driven at greater than about 6 V for vehicular applications and a method of manufacturing the LED array are described. A mirror is disposed on the n-semiconductor layer and the p-semiconductor layer. A dielectric spacer is disposed between the p-semiconductor and the mirror. A hard mask is deposited on the dielectric spacer and has an opening with a conductor to the mirror. A dielectric layer is deposited on the hard mask. A bonding layer formed on the dielectric layer is connected to the semiconductor. Trenches extend through the semiconductor to form pixels connected in series. A dielectric spacer layer stack is disposed on sidewalls of the trench to form a Bragg reflector. A redistribution dielectric (RDL) layer is disposed on the bonding layer. An under bump metallization (UBM) pad deposited on the RDL layer is coupled to the bonding layers of the first and last pixels via an opening in the RDL layer.

A Light-Emitting Diode (LED) light system has a plurality of LED groups connected in parallel with each of the plurality of LED groups having one or more LEDs connected in series, a power circuit having a plurality of outputs with each output of the power circuit is electrically coupled to a respective one of the plurality of LED groups, and a control subsystem electrically coupled to the power circuit for individually controlling each output of the power circuit for controlling the operation of the corresponding LED group and adapting to the characteristics thereof. In some embodiments, at least one LED group may further have a switch and / or a light-angle controlling structure connected with the one or more LEDs in series and controlled by the control subsystem for selectively enabling or disabling the LED group and / or adjusting the light angle thereof.

A patient monitoring sensor having a communication interface, through which the patient monitoring sensor can communicate with a monitor is provided. The patient monitoring sensor includes a light-emitting diode (LED) communicatively coupled to the communication interface and a detector, communicatively coupled to the communication interface, capable of detecting light. The patient monitoring sensor includes a layer of material is provided over the LED on the patient-side of the sensor to reduce transmission of heat therefrom to the skin of the patient.

This application discloses a multi-color decorative light control device and a vehicle. The multi-color decorative light control device includes an input filter circuit, an input protection circuit, a first colored light, a second colored light, and a third colored light. The input filter circuit is electrically connected to the power supply terminal of the vehicle control module, and the input protection circuit is electrically connected to the input filter circuit. The positive terminals of the first, second, and third colored lights are respectively electrically connected to the input protection circuit. The negative terminal of the first colored light is electrically connected to the first control terminal of the vehicle control module, the negative terminal of the second colored light is electrically connected to the second control terminal of the vehicle control module, and the negative terminal of the third colored light is electrically connected to the third control terminal of the vehicle control module. The applied multi-color decorative light control device has a simple and reliable circuit and can use higher power LEDs to improve brightness, thus enabling easy identification even in daytime environments.

A patient monitoring sensor having a communication interface, through which the patient monitoring sensor can communicate with a monitor is provided. The patient monitoring sensor includes a light-emitting diode (LED) communicatively coupled to the communication interface and a detector, communicatively coupled to the communication interface, capable of detecting light. The patient monitoring sensor includes a layer of material is provided over the LED on the patient-side of the sensor to reduce transmission of heat therefrom to the skin of the patient.