초록 ▼

A device for optically coupling a light emitting diode and a radiation pickup such as an optical fiber. The light emitting diode element includes at least one emissive section within an active layer where a part of the light irradiation does not emerge from the diode element if it is emitted at an e

A device for optically coupling a light emitting diode and a radiation pickup such as an optical fiber. The light emitting diode element includes at least one emissive section within an active layer where a part of the light irradiation does not emerge from the diode element if it is emitted at an excessive angle of incidence. A lenticular element in the form of either a semi-cylindrical lens or a semi-toroidal lens is associated with the emissive section. In one form, the device includes a circular central lens and a plurality of semi-toroidal lens concentric with respect to the central lens and associated with annular emissive sections.

대표청구항 ▼

An optical device for concentrating the light radiation emitted by a light emitting diode, comprising at least one emissive section in the form of a strip provided in the active layer of the said diode, the said optical device having formed in a layer deposited on the surface of the diode in the pat

An optical device for concentrating the light radiation emitted by a light emitting diode, comprising at least one emissive section in the form of a strip provided in the active layer of the said diode, the said optical device having formed in a layer deposited on the surface of the diode in the path of the light rays and consisting of a material transparent to the wavelength of the radiation emitted by the diode, at least one planoconvex lenticular element associated with the emissive section of the active layer, this lenticular element having finite radius of curvature in a plane at right angles to the strip of emissive section, and an infinite radius of curvature in a plane tangent to the same strip of emissive section, said optical device further comprising a contact surface metallization formed on said layer.