Patent application number | Description | Published |
20090026973 | LIGHTING APPARATUS - A lighting apparatus according to the present invention includes: a plurality of solid state light emitting devices; a holding unit which holds the plurality of solid state light emitting devices; a casing inside which the holding unit is disposed; a first terminal and a second terminal disposed at a longitudinal end of the casing; a third terminal and a fourth terminal disposed at the other longitudinal end of the casing; a first rectification unit which converts alternating current power, supplied from an external source to the first terminal and the third terminal, into direct current power, and to supply the direct current power to the plurality of solid state light emitting devices; and a second rectification unit which converts alternating current power, supplied from the external source to the second terminal and the fourth terminal, into direct current power, and to supply the direct current power to the plurality of solid state light emitting devices. | 01-29-2009 |
20090207620 | LIGHTING APPARATUS - A lighting apparatus according to the present invention includes: a voltage supply unit which supplies voltage; and a plurality of solid state light emitting devices which emit light using the voltage supplied by the voltage supply unit. The plurality of solid state light emitting devices are series-connected, the voltage supplied by the voltage supply unit is applied to the plurality of solid state light emitting devices which are series-connected, and the voltage supplied is set to a voltage such that a current flowing through each of the plurality of solid state light emitting devices is equal to or less than 1/N of the maximum rated current, where N is a number equal to or greater than 2. | 08-20-2009 |
20090235208 | LIGHTING APPARATUS - The lighting apparatus according to the present invention is a lighting apparatus which lights by emitting light through solid-state light-emitting devices using an AC power source, the lighting apparatus including an AC to DC conversion unit which converts AC from the power source into DC, and a power source device which includes a rectangular main single-side mounting board, on which a part of the AC to DC conversion unit is mounted, and a rectangular first single-side mounting sub-board, on which a remaining part of the AC to DC conversion unit is mounted, the power source device being shaped like a chopstick box laid out such that the long, rectangular mounting surface of the main single-side mounting board and the rectangular first single-side mounting sub-board face each other along a length-wise direction. | 09-17-2009 |
Patent application number | Description | Published |
20130127504 | METHOD FOR RESETTING PHOTOELECTRIC CONVERSION DEVICE, AND PHOTOELECTRIC CONVERSION DEVICE - A reset method of an photoelectric conversion device at least including a phototransistor having a first collector, a first base, and a first emitter, and a first field-effect transistor having a first source, a first drain, and a first gate, includes: connecting the first base, and one of the first source and the first drain of the first field-effect transistor by having a common region, or a continuous region, without a base electrode; supplying a base reset potential to the other of the first source and the first drain; and overlapping a time in which a first emitter potential is supplied to the first emitter and a time in which a first ON-potential that turns on the first field-effect transistor is supplied to the first gate. | 05-23-2013 |
20130187030 | SENSE CIRCUIT AND METHOD OF OPERATION THEREOF AND PHOTOELECTRIC CONVERSION ARRAY - A sense circuit includes a differential amplifier circuit including an inverting input section, a non-inverting input section and an output section, an electrical capacitor connected between the inverting input section and the output section, and a field effect transistor including a source, a drain, and a gate. One of the source and the drain is connected to the inverting input section, and the other of the source and the drain is connected to the output section. A reference potential is supplied to the non-inverting input section, and an output section of a photoelectric conversion cell having an added switching function is connected to the inverting input section. | 07-25-2013 |
Patent application number | Description | Published |
20120212619 | IMAGE CAPTURING DEVICE AND IMAGE CAPTURING METHOD - Disclosed is an image capturing device which is provided with an irradiation unit, an image capturing unit, and a color representation setting unit, wherein the irradiation unit irradiates a subject with infrared rays having different wavelength intensity distributions, the image capturing unit captures images of the subject by the respective infrared rays having different wavelength distributions which are reflected by the subject, and forms image information indicating the respective images, and the color representation setting unit sets, in the image information, color representation information for representing the respective images, which are indicated by the formed image information, by different plain colors. Also disclosed is an image capturing method characterized by separating infrared rays from a subject into infrared rays having different wavelength intensity distributions, capturing images of the subject by the respective infrared rays having different wavelength intensity distributions, forming image information indicating the respective images, and representing the respective images, which are indicated by the formed image information, by different plain colors. | 08-23-2012 |
20130119240 | PHOTOELECTRIC CONVERSION CELL AND ARRAY, READING METHOD THEREFOR, AND CIRCUIT THEREOF - In order to achieve a photovoltaic cell and an array of high sensitivity and high dynamic range, there is a need for a photovoltaic cell and an array which are combined so that an amplified photovoltaic element and a selection element are resistant to external noise, and so that the combination is resistant to effects from address selection pulse noise at array readout time. In the present invention, in order to solve the problem, a photovoltaic cell has been configured with a combination of an amplified photovoltaic element ( | 05-16-2013 |
20130234277 | SEMICONDUCTOR DEVICE AND IMAGING APPARATUS - The invention relates to a semiconductor device having a vertical transistor bipolar structure of emitter, base, and collector formed in this order from a semiconductor substrate surface in a depth direction. The semiconductor device includes an electrode embedded from the semiconductor substrate surface into the inside and insulated by an oxide film. In the surface of the substrate, a first-conductivity-type first semiconductor region, a second-conductivity-type second semiconductor region, and a first-conductivity-type third semiconductor region are arranged, from the surface side, inside a semiconductor device region surrounded by the electrode and along the electrode with the oxide film interposed therebetween, the second semiconductor region located below the first semiconductor region, the third semiconductor region located below the second semiconductor region. The electrode is insulated from the first to third semiconductor regions, and current gain is variable through application of voltage to the electrode. | 09-12-2013 |
20130240716 | METHOD OF VARYING GAIN OF AMPLIFYING PHOTOELECTRIC CONVERSION DEVICE AND VARIABLE GAIN PHOTOELECTRIC CONVERSION DEVICE - Provided is a method of varying the gain of an amplifying photoelectric conversion device and a variable gain photoelectric conversion device which are capable of achieving both signal processing under low illuminance and high-current processing under high light intensity, and thereby capable of securing a wide dynamic range. An amplifying photoelectric conversion part includes a photoelectric conversion element and amplification transistors forming a Darlington circuit. The sources and the drains of field-effect transistors are connected to the bases and the emitters of the amplification transistors, respectively. The gates of the field-effect transistors each function as a gain control part. | 09-19-2013 |
20140030878 | METHOD OF MAKING LESS ELECTRIC CURRENT DEPENDENCE OF ELECTRIC CURRENT GAIN OF SEMICONDUCTOR DEVICE - An object of the present invention is to amplify the current which varies by a factor of several orders of magnitude with a constant gain without using a complicated circuit. In order to solve the problem, with a semiconductor device includes a first semiconductor region of a first conductivity, a second semiconductor region which is an opposite conductivity opposite to the first conductivity and is in contact with the first semiconductor region and a third semiconductor region which is the first conductivity and is in contact with the second semiconductor region at the second surface, a fourth semiconductor region in contact with the second semiconductor region is provided so as to be separated from the third semiconductor region and enclose the third semiconductor region and an impurity concentration of the fourth semiconductor region is larger than that of the second semiconductor region. | 01-30-2014 |
20140239158 | PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERTER ARRAY AND IMAGING DEVICE - A photoelectric converter includes a first pn junction comprised of at least two semiconductor regions of different conductivity types, and a first field-effect transistor including a first source connected with one of the semiconductor regions, a first drain, a first insulated gate and a same conductivity type channel as that of the one of the semiconductor regions. The first drain is supplied with a second potential at which the first pn junction becomes zero-biased or reverse-biased relative to a potential of the other of the semiconductor regions. When the first source turns to a first potential and the one of the semiconductor regions becomes zero-biased or reverse-biased relative to the other semiconductor regions, the first pn junction is controlled not to be biased by a deep forward voltage by supplying a first gate potential to the first insulated gate, even when either of the semiconductor regions is exposed to light. | 08-28-2014 |
20140300750 | IMAGE CAPTURING DEVICE AND IMAGE CAPTURING METHOD - Disclosed is an image capturing device having an irradiation unit, an image capturing unit, and a color representation setting unit. The irradiation unit irradiates a subject with infrared rays having different wavelength intensity distributions, the image capturing unit captures images of the subject by the respective infrared rays having different wavelength distributions which are reflected by the subject, and forms image information indicating the respective images, and the color representation setting unit sets color representation information for representing the respective images, which are indicated by the formed image information, by different plain colors. Also disclosed is an image capturing method for separating infrared rays from a subject into infrared rays having different wavelength intensity distributions, capturing images of the subject by the respective infrared rays having different wavelength intensity distributions, forming image information indicating the respective images, and representing the respective images, which are indicated by the formed image information. | 10-09-2014 |