Abstract:
A method for producing a lighting device may include: providing a first mount, fastening a second mount to the first mount, at least partially severing the second mount into at least two parts after fastening of the second mount to the first mount, and fastening at least two luminescence diode chips to that side of the second mount which is remote from the first mount.
Abstract:
An optoelectronic component comprising the following features is disclosed, at least one semiconductor body (1) provided for emitting electromagnetic radiation of a first wavelength range, an inner radiation-permeable shaped body (2), into which the semiconductor body (1) is embedded, a wavelength-converting layer (6) on an outer side (5) of the inner shaped body (2), said layer comprising a wavelength conversion substance (8) suitable for converting radiation of the first wavelength range into radiation of a second wavelength range, which is different from the first wavelength range, a coupling-out lens (10), into which the inner shaped body (2) and the wavelength-converting layer (6) are embedded, wherein the coupling-out lens (10) has an inner side enclosed by an inner hemisphere area having a radius Rconversion, and an outer side enclosing an outer hemisphere area having a radius Router, and the radii Rconverstion and Router meet the Weierstrass condition: Router≧Rconversion*nlens/nair, where nlens is the refractive index of the coupling-out lens and nair is the refractive index of the surroundings of the coupling-out lens.
Abstract:
An optoelectronic semiconductor component comprising a semiconductor body (10) and a current spreading layer (3) is specified. The current spreading layer (3) is applied to the semiconductor body (10) at least in places. In this case, the current spreading layer (3) contains a metal (1) that forms a transparent electrically conductive metal oxide (2) in the current spreading layer, and the concentration (x) of the metal (1) decreases from that side of the current spreading layer (3) which faces the semiconductor body (10) toward that side of said current spreading layer which is remote from the semiconductor body (10). A method for producing such a semiconductor component is also disclosed.
Abstract:
An optoelectronic module is provided which comprises a first semiconductor body (2) with a radiation exit side (2a) on which an electrical connection region (21, 22) is arranged. The first semiconductor body (2) is arranged with its side opposite the radiation exit side (2a) on a carrier (1). An insulation material (3) is arranged on the carrier (1) laterally next to the first semiconductor body (2), which material forms a fillet and adjoins the semiconductor body (2) form-fittingly. An insulation layer (4) is arranged at least in places on the first semiconductor body (2) and the insulation material (3), on which layer a planar conductive structure is arranged for planar contacting of the first semiconductor body (2), which conductive structure is electrically conductively connected with the electrical connection region (21, 22). A method of producing such an optoelectronic module is furthermore provided.
Abstract:
An optoelectronic device for emitting mixed light in a first and a different second wavelength range comprises a first or second semiconductor light source (1, 2) with a first or second light-emitting diode (11, 21), which emits light with a first or second characteristic wavelength in the first or second wavelength range and with a first or second intensity on application of a first or second current (41, 42), an optical sensor (3) for converting of a part (110, 510) of the light emitted in each case by the semiconductor light sources (1, 2) into a first or second sensor signal (341, 342), and a feedback controller (4) for feedback control of the first and second current (41, 42) as a function of the first and second sensor signal (341, 342), wherein the characteristic wavelengths and intensities of the light emitted in each case by the first and second semiconductor light sources (1, 2) exhibit a first or different second temperature and/or current and/or ageing dependency (931, 932, 941, 942), the optical sensor (3) exhibits a first or second wavelength-dependent sensitivity in the first or second wavelength range, which sensitivities are adapted to the first and second temperature dependencies (931, 932, 941, 942), and the feedback controller (4) controls the first and second currents (41, 42) in such a way that the first sensor signal (341) exhibits a given ratio to the second sensor signal (342).
Abstract:
A radiation-emitting semiconductor component with a semiconductor body, including a first principal surface (5), a second principal surface (9) and a semiconductor layer sequence (4) with an electromagnetic radiation generating active zone (7), in which the semiconductor layer sequence (4) is disposed between the first and the second principal surfaces (5, 9), a first current spreading layer (3) is disposed on the first principal surface (5) and electrically conductively connected to the semiconductor layer sequence (4), and a second current spreading layer (10) is disposed on the second principal surface (9) and electrically conductively connected to the semiconductor layer sequence (4).
Abstract:
A semiconductor body (2), comprising a semiconductor layer sequence with an active region (3) suitable for generating radiation. The semiconductor layer sequence comprises two contact layers (6, 7), between which the active region is arranged. The contact layers are assigned a respective connection layer (12, 13) arranged on the semiconductor body. The respective connection layer is electrically conductively connected to the assigned contact layer. The respective connection layer is arranged on that side of the assigned contact layer which is remote from the active region. The connection layers are transmissive to the radiation to be generated in the active region, and the contact layers are of the same conduction type.
Abstract:
A luminescence diode (1) having an active zone (7) which emits electromagnetic radiation in a main radiating direction (15). A reflection-reducing layer sequence (16) is arranged downstream of the active zone (7) in the main radiating direction (15). The reflection-reducing layer sequence includes a DBR mirror (13), which is formed by at least one layer pair (11, 12), an antireflective layer (9) downstream of the DBR mirror (13) in the main radiating direction (15) and an intermediate layer (14) arranged between the DBR mirror (13) and the antireflective layer (9).
Abstract:
A radiation-emitting semiconductor component, having a semiconductor layer sequence (1) with an active zone (2) provided for radiation generation and a first mirror arranged downstream of the active zone. The first mirror comprises a metal layer (4) and an intermediate layer (3) made of a radiation-transmissive and electrically conductive material, said intermediate layer being arranged on that side of the metal layer (4) which faces the active zone. The radiation-emitting semiconductor component is provided for operation with an optical resonator and for generating predominantly incoherent radiation as an RCLED or the radiation-emitting semiconductor component being provided for operation with an external optical resonator and for generating predominantly coherent radiation as a VECSEL.
Abstract:
A semiconductor chip, in particular a light-emitting diode, has a substrate (2), on which a sequence of semiconductor layers (3) with an active zone (5) has been applied. Above the sequence of semiconductor layers (3) there is a stepped window layer (6), which is structured in the manner of a Fresnel lens and has with regard to the coupling out of radiation the function of a hemispherical lens (7). This produces a semiconductor chip with particularly high coupling-out efficiency.