Abstract:
The present invention discloses an ambient light sensor and an adjusting method thereof, and an electronic product, relates to the field of sensor technologies, and enables output light intensities of the ambient light sensor to be consistent under ambient light with different color temperatures, thereby avoiding an output light intensity deviation generated when intensities of ambient light with different color temperatures are detected. The method for adjusting an ambient light sensor includes: acquiring a color temperature of light received by the ambient light sensor; and adjusting an output light intensity of the ambient light sensor according to the color temperature to enable output light intensities to be consistent when the ambient light sensor receives light with different color temperatures. The ambient light sensor includes: an acquiring device, configured to acquire a color temperature of light received by the ambient light sensor; and an adjuster, configured to adjust an output light intensity of the ambient light sensor according to the color temperature acquired by the acquiring device to enable output light intensities to be consistent when the ambient light sensor receives light with different color temperatures.
Abstract:
The invention relates to simplified portable method of measuring light sources by limiting the number of parameters to measured for example to one plane of radiation where know characteristics are preselected or default selected to be used to calculated combined output. Further more is light measurements combined with power calculation and control where phase of supply current is used to obtain light source flickering, determine dimmable. Further more can an imaging recording device be used to further enhance the measurements.
Abstract:
A method for detecting photons includes subjecting a photodiode formed in a semi-conductive material, to a bias voltage such that an avalanche phenomenon can appear when a photon enters the photodiode in an avalanche layer extending into the semi-conductive material down to minimum and maximum depths so that it can be reached by photons having a wavelength between minimum and maximum wavelengths. The method also includes comparing the amplitude of a signal supplied by the photodiode with two threshold values, and deducing that the photodiode received a photon having a wavelength between two threshold wavelengths ranging between the minimum and maximum wavelengths, if the amplitude of the signal is between the two threshold values.
Abstract:
The description relates to capturing or sensing color images of scenes and information about the type of light (e.g., light source) that illuminated the scene. One example can include an image sensor manifest as an array of pixels. This example can also include a lens configured to focus an image from a scene on the array of pixels. The array of pixels can entail first pixels that are configured to sense the image and second pixels that are configured to capture information about lighting of the scene.
Abstract:
The invention relates to an arrangement for spatially resolved and wavelength-resolved detection of light radiation which is emitted from at least one OLED (1) or LED. A multilayer system (2), which is formed with layers configured on top of each other in an alternating manner made of a material with higher and lower optical refractive index n, is arranged between an electrode (3, 4), an OLED or LED and a substrate. In this case, light radiation from the at least one OLED or LED, comprising a plurality of different wavelengths λ1, ⋋2, ⋋3,...⋋n, exits the multi-layer system. Light radiation, comprising different wavelengths λ1, ⋋2, λ3,...⋋n with defined angles, exits, and is incident on at least one detector array (9, 9.1) after at least simple refraction on an optical element (10, 11) or after reflection on a layer or a layer system of a sensor (12), such that each light radiation comprising a wavelength λ1, ⋋2, ⋋3,... or ⋋n is incident on a detector element of the detector array. The detector elements of the detector array are arranged discretely in relation to one another.
Abstract:
Bei einem Verfahren zum Sortieren von Lichtquellen (1 a-d) in eine Farbklasse (FK), wird in einem ersten Schritt (100) aus einer Grundmenge (GM) der Lichtquellen (1 a-d) eine Grobauswahlmenge (GAM) in eine Zwischenklasse (ZK) sortiert, wobei die ersten Farbörter der Lichtquellen (1a-d) der Zwischenklasse (ZK) in einem gemeinsamen ersten Bereich um einen ersten Referenzfarbort angeordnet sind, wobei der erste Referenzfarbort und die ersten Farbörter in einem ersten Farbmodell mit einem ersten Satz von Spektralwertfunktionen (CMF1) festgelegt sind, wird in einem nachfolgenden zweiten Schritt (200) aus der Grobauswahlmenge (GAM) der Lichtquellen (1a-d) eine Feinauswahlmenge (FAM) in die Farbklasse (FK) sortiert, wobei die zweiten Farbörter der Lichtquellen (1 a-d) der Farbklasse (FK) in einem gemeinsamen zweiten Bereich um einen zweiten Referenzfarbort angeordnet sind, wobei der zweite Referenzfarbort und die zweiten Farbörter in einem zweiten Farbmodell mit einem zweiten Satz von Spektralwertfunktionen (CMF2) festgelegt sind, wobei der erste (CMF1) und der zweite Satz von Spektralwertfunktionen (CMF2) unterschiedlich ausgebildet sind.
Abstract:
This invention relates to a colour sensor arrangement and to a method for colour sensor calibration. A colour sensor arrangement comprises a colour sensor (1) arranged to generate at least a first channel signal (CH1) being indicative of a colour of light incident on the colour sensor (1). A processing unit (2) is connected to the colour sensor (1) and arranged to generate a tuple of colour signals (R, G, B) by processing the at least first channel signal (CH1). A memory (3) is connected to the processing unit (2) and a control unit (4) is connected to the processing unit (2) and to the memory (3). Furthermore, the control unit (4) is arranged to receive calibration data (M) relating the tuple of colour signals (R, G, B) to a calibrated tuple of colour signals (X, Y, Z) and arranged to store said calibration data (M) by means of the memory (3). An interface (5) is connected to the processing unit (2) and comprises an interface terminal (51).
Abstract:
Proposed is a light sensor (1), comprising at least one wavelength selective photo-detector (10), a lens (20) and an aperture (30).The wavelength selective photo-detector allows detecting light within a predefined wavelength range falling on the sensor. The lens project light on the photo-detector and the aperture defines a field of view of the light sensor. The photo-detector (10), the lens (20), and the aperture (30) are arranged in a telecentric configuration. Advantageously, this allows light to impinge on the wavelength selective photo-detector within a predefined range of angles irrespective of the direction of the light incident on the aperture, thus removing the angle dependent response of the wavelength selective photo-detector.