摘要:
The package (100) of the invention comprises at least one semiconductor device (30) provided with bond pads (32); an encapsulation (40), an interconnect element (20) and a heatsink (90). This element comprises a system of electrical interconnects (12) and is at least substantially covered by a thermally conductive, electrically insulating layer (11) at a first side (1) and that is provided with an electric isolation (13) at a second side (2), such that the isolation (13) and the thermally conducting layer (11) electrically isolate the electrical interconnects (12) from each other. At least one component of the encapsulation (40) and the heatsink (90) has an interface with the interconnect element (20), which interlace extends over substantially the complete side (1,2) to which the said component (40,90) is attached.
摘要:
The present invention relates to a method of controlling the output of a luminaire comprising an array of LEDs emitting light of at least one color. The array has single color LED groups, wherein each group consists of at least one LED. The method comprises the following steps for each LED group:spectrally filtering the light emitted by the LED group by means of a first filter as well as by means of a second filter; detecting the spectrally filtered light from said first and said second filter and generating respective first and second response signals, wherein the levels of said first and second response signals are related to the respective amounts of detected spectrally filtered light; and controlling the light output of said LED group on the basis of said first and second response signals, wherein the filter characteristics of said first and said second filter are at least partly non-overlapping. The invention also relates to a corresponding control system for performing the method.
摘要:
The present invention relates to a luminaire comprising an array of LEDs emitting light of at least one colour, and a control system for controlling the light output of the luminaire. The control system comprises photosensor array for detecting light output of the luminaire. An imaging unit is arranged in front of the photosensor array such that it maps an image of said array of LEDs on said photosensor array. The photosensor array is divided into subareas each detecting light output from a single one of the LEDs. The control system uses the output of the subareas for controlling the luminaire light output. Thus, it is possible to act on different LED light colours or the light output of individual LEDs without having to separate them in time by means of a time pulsing method.
摘要:
The present invention relates to a luminaire comprising an array of LEDs emitting light of at least one color, and a control system for controlling the light output of the luminaire. The control system comprises photosensor array for detecting light output of the luminaire. An imaging unit is arranged in front of the photosensor array such that it maps an image of said array of LEDs on said photosensor array. The photosensor array is divided into subareas each detecting light output from a single one of the LEDs. The control system uses the output of the subareas for controlling the luminaire light output. Thus, it is possible to act on different LED light colors or the light output of individual LEDs without having to separate them in time by means of a time pulsing method.
摘要:
The present invention relates to a light-emitting device comprising a substrate, a circuitry, a LED in electrical connection with said circuitry, and a heat sink arranged to transport heat away from the LED, wherein the LED is in thermal contact with said heat sink through an opening in said substrate. The present invention also relates to methods for the manufacture of such a device.
摘要:
An electric light and external light control system for a space with a dual-mode light sensor is proposed. The dual-mode light sensor (106) measures and computes the amount of external light and electrical light incident on its sensing surface. The individual measured light components (total light, electric light and external light) are transmitted to the window treatment controller (103) and the electric light controller (102). The controllers (102, 103) use this information to optimally control the lighting condition to meet user requirements and reduce energy consumption. Both controllers (102, 103) operate concurrently and independently, but are linked via the dual-mode sensor (106).
摘要:
The disclosed embodiments relate to a daylight harvesting system (1). The daylight harvesting system comprises a light distribution device comprising a light inlet (2) for receiving incident light (3), and a light outlet (4) for providing output light (5) received by the light inlet into an interior space. A light sensor (6) is arranged to receive and measure a light level of the incident light and to provide a measurement signal representative thereof. Control circuitry (7) is arranged to receive the measurement signal, and to provide a control signal based on the measurement signal to an artificial light source (8) placed at the light outlet. The light sensor is placed relative the light inlet such that the incident light received by the light sensor exclusively is affected by the incident light as received by the light inlet.
摘要:
An analyte measuring device (5) for monitoring, for example, levels of a tissue analyte (e.g., bilirubin), includes a number of narrow band light sources (10), each narrow band light source being structured to emit a spectrum of light covering a number of wavelengths, and a number of detector assemblies (15) configured to receive light reflected from the transcutaneous tissues of a subject. Each of the detector assemblies includes a filter (20) and a photodetector (25), each filter being structured to transmit a main transmission band and one or more transmission sidebands, wherein for each narrow band light source the spectrum thereof includes one or more wavelengths that fall within the transmission band of at least one of the filters, and wherein for each narrow band light source the spectrum thereof does not include any wavelengths that fall within the one or more transmission sidebands of any of the optical filters.
摘要:
An electric light and external light control system for a space with a dual-mode light sensor is proposed. The dual-mode light sensor (106) measures and computes the amount of external light and electrical light incident on its sensing surface. The individual measured light components (total light, electric light and external light) are transmitted to the window treatment controller (103) and the electric light controller (102). The controllers (102, 103) use this information to optimally control the lighting condition to meet user requirements and reduce energy consumption. Both controllers (102, 103) operate concurrently and independently, but are linked via the dual-mode sensor (106).
摘要:
The invention relates to an optical detector device (1) for generating at least one electrical output signal in response to a received beam of light, comprising an optical band-pass filter (3a), adapted to receive the beam of light and to provide a filtered beam of light, which filter (3a) has a transmission wavelength which increases in direction of at least one axis (4) and an array of detector elements (2) arranged in direction of the axis (4) to receive the filtered beam of light for generating the electrical output signal.