摘要:
This wheel is equipped with a tyre and an electric device (100), which needs to be supplied with power in order to operate. The device comprises a system (200) for converting the difference in pressure between the pressurized gas inside the tyre and the free air outside the tyre into electric power used for supplying the electric device.
摘要:
A wheel includes a tire, an electrical device requiring power for operation, and a conversion system for providing electrical energy for powering the electrical device. The electrical energy is obtained from conversion of a difference between pressure of a gas confined under pressure within the tire and ambient pressure of air outside the tire. The conversion system includes an inlet nozzle fluidly connected to the gas confined under pressure in the tire, an outlet nozzle fluidly connected to the air outside the tire, a movable arm configured to be moved by gas expanding while flowing from the inlet nozzle to the outlet nozzle, and an electromechanical transducer capable of converting mechanical energy from movement of the arm into electrical energy used to power the electrical device.
摘要:
A field emission device including a cathode, a porous insulating layer, of which the pores contain electron emitters, and a conductive layer as a gate layer.
摘要:
Disclosed is a method for the addressing of each column of a matrix type LCD panel consisting in the production of a pulse to control a driver transistor of said column, said pulse having a duration determined by the value of the video signal sample at input, said pulse acting on the conduction state of said transistor to connect said column to a supply terminal where a voltage gradient develops. According to the method two pulse durations, the sum of which is predetermined, are alternated and, in order that a given value of a video signal sample may produce the same optical effect from one period to the next one, differentiated excitation voltages are applied to at least one of the electrodes sandwiching the liquid crystal layer, namely said column and its counter-electrode. Application notably to active matrix LCD panels.
摘要:
An electrode of a light-emitting device of the OLED type adapted for forming with a second electrode, an optical cavity, including at least one layer based on a material of refraction index n1 including a structured face comprising a plurality of recesses filled with a material of refractive index n2 different from n1.
摘要:
A microelectronic chip comprises two parallel main faces and side faces. At least one of the faces comprises a recess provided with at least one electrical connection element and forming a housing for a wire element. The wire element simultaneously constitutes both an electrical connection between the chip and the outside via said connection element and a flexible mechanical support for said chip.
摘要:
The light-emitting device includes a base substrate and preferably three light-emitting diodes respectively associated with three primary colors and emitting a part of their signal in the direction of the base substrate. The device includes three chromatic photodetectors formed in the base substrate constituting a semiconducting substrate, and each arranged under an associated light-emitting diode. Each chromatic photodetector includes superposed first, second and third layers. The first layer and third layer have a first type of conductivity and the second layer has a second type of conductivity. The device includes a control component connected to the chromatic photodetectors and to the light-emitting diodes to control the global color of the light emitted by the device.
摘要:
A microelectronic chip comprises two parallel main faces and side faces. At least one of the faces comprises a recess provided with at least one electrical connection element and forming a housing for a wire element. The wire element simultaneously constitutes both an electrical connection between the chip and the outside via said connection element and a flexible mechanical support for said chip.
摘要:
The light-emitting device includes a base substrate and preferably three light-emitting diodes respectively associated with three primary colors and emitting a part of their signal in the direction of the base substrate. The device includes three chromatic photodetectors formed in the base substrate constituting a semiconducting substrate, and each arranged under an associated light-emitting diode. Each chromatic photodetector includes superposed first, second and third layers. The first layer and third layer have a first type of conductivity and the second layer has a second type of conductivity. The device includes a control component connected to the chromatic photodetectors and to the light-emitting diodes to control the global color of the light emitted by the device.
摘要:
An optoelectronic transmitting and receiving device, including a pierced platform including at least one through hole for introduction of an optical fiber, a first optoelectronic element integral with the platform, arranged substantially facing the through hole and configured to emit or receive a first laser beam at a first wavelength, and at least one second optoelectronic element hybridized on the platform and arranged substantially facing the through hole. The first element is arranged between the platform and the second element, which is configured to receive or emit a second laser beam at a second wavelength, different than the first wavelength, passing through the first element.