Abstract: Shape measuring systems are disclosed. In one example, a shape measuring system includes a light source part with a light source, a waveform control lens, and a scan mechanism. It also includes light receiving parts that each include a light receiving lens on which reflected light reflected by the measurement target among measurement light from the light source part is incident, an EVS, which is an asynchronous imaging device that is a light receiving element, an event issuing part that detects an event on the basis of output data from the EVS and outputs event data, and a transmitting part that outputs the event data to the signal processing part. A signal processing part includes an unwanted signal removing part that removes an unwanted signal resulting from incidence of secondary reflected light, and a three-dimensional calculating part that calculates a three-dimensional shape of the measurement target.

Abstract: The present disclosure relates to an imaging element, a driving method, and electronic equipment that enable imaging to be performed at higher speed. The imaging element includes a pixel array in which a plurality of pixels are arranged in a matrix shape, an AD converter that performs AD conversion in parallel on pixel signals that have been output from the plurality of pixels for each column of the plurality of pixels arranged in the pixel array, and a reference signal generator that generates a reference signal that the AD converter refers to when the AD converter performs AD conversion on a pixel signal for an identical pixel signal, the reference signal having a waveform that includes a slope having a constant gradient.

Abstract: The present disclosure relates to an imaging element, a driving method, and electronic equipment that enable imaging to be performed at higher speed. The imaging element includes a pixel array in which a plurality of pixels are arranged in a matrix shape, an AD converter that performs AD conversion in parallel on pixel signals that have been output from the plurality of pixels for each column of the plurality of pixels arranged in the pixel array, and a reference signal generator that generates a reference signal that the AD converter refers to when the AD converter performs AD conversion on a pixel signal for an identical pixel signal, the reference signal having a waveform that includes a slope having a constant gradient.

Abstract: Provided is an AD conversion unit that includes a comparator to compare an electric signal with a reference signal having a variable level, and performs AD conversion of the electric signal by using a result of the comparison between the electric signal and the reference signal by the comparator. An attenuation unit attenuates the electric signal supplied to the comparator with the amplitude of the electric signal.

Abstract: The present technology relates to a sensor, a driving method, and an electronic device that are capable of improving the dynamic range and noise of AD conversion. An AD conversion unit includes a comparator configured to compare an electric signal with a reference signal having a variable level, and performs AD conversion of the electric signal by using a result of the comparison between the electric signal and the reference signal by the comparator. An attenuation unit attenuates the electric signal supplied to the comparator in accordance with the amplitude of the electric signal. The present technology is applicable to, for example, a case where AD conversion is performed on an electric signal.

Abstract: According to one embodiment, a pixel array unit has pixels for accumulating photoelectric-converted charges arranged in a matrix, and a drive voltage generation circuit that generates a drive voltage for driving the pixels on driving of the pixels and increases a drive force for generating the drive voltage according to a timing of start of the driving.

Abstract: According to one embodiment, a solid-state imaging device includes a pixel array unit having pixels in a matrix form to store charge obtained by photoelectric conversion; a reference voltage generation circuit configured to generate a reference voltage based on an inter-terminal voltage of a first capacitor; and a column ADC circuit configured to calculate an AD conversion value of a pixel signal read out from each of the pixels on the basis of a result of comparison between the pixel signal and the reference voltage, the first capacitor comprising: a first nonlinear capacitance; and a second nonlinear capacitance connected in parallel with the first nonlinear capacitance to have a polarity opposite to that of the first nonlinear capacitance.

Abstract: An ADC includes a comparator and first and second amplifier circuits including a fully-differential operational amplifier. The comparator converts an analog signal output from the operational amplifier into digital data. The first amplifier circuit stores charge corresponding to a signal having a phase reverse to an input signal in each of a pair of capacitors during a first period and transfers the charge in one of the pair of capacitors to the other via the operational amplifier during a second period to amplify the reversed phase signal twofold. The second amplifier circuit amplifies the input signal twofold similarly to the first amplifier circuit.

Abstract: A particle concentration measuring device includes: a measurement region formation part which has a wall (10) of substantially ring-form and through an inner opening of which gas relatively flows orthogonally; a light curtain forming unit (12A, 12B) forming a planar light curtain (FL) in the inner opening: a particle detecting unit (15) receiving scattered light from particles passing through the light curtain (FL) to detect the particles; and a calculating unit (22) calculating particle concentration based on the total number of the particles detected by the particle detecting unit (15) in a volume of an airflow passing through the light curtain (FL) in a unit time.

Abstract: A power supply voltage containing a noise component is supplied to each pixel at the time of sampling of a reset level of a signal read out from each pixel, and a power supply voltage in which the noise component is suppressed is supplied to each pixel at the time of sampling of a read level of the signal read out from each pixel.

Abstract: In a first signal conversion circuit, a first electrode of a first capacitor is connected to a first signal line, and a second electrode thereof is connected to a first node. In a second capacitor, a third electrode thereof is connected to a second signal line, and a fourth electrode thereof is connected to a second node. In a first inverting amplifier including a first negative feedback switch, a first input electrode is connected to the first node, and a first output electrode is connected to a third node. In a second inverting amplifier including a second negative feedback switch, a second input electrode is connected to the second node. A first averaging switch is connected between a first node and second node. A second averaging switch is connected between third node and fourth node.

Abstract: A reference voltage generation circuit generates a reference voltage and outputs it to an amplifier reference voltage line. A power-supply-noise adding circuit adds power supply noise superimposed on a power supply to the reference voltage generated by the reference voltage generation circuit. A differential amplifier amplifies a difference between a voltage of a vertical signal line and a voltage of an amplifier reference voltage line and outputs the amplified voltage.

Abstract: A particle concentration measuring device includes: a measurement region formation part which has a wall (10) of substantially ring-form and through an inner opening of which gas relatively flows orthogonally; a light curtain forming unit (12A, 12B) forming a planar light curtain (FL) in the inner opening: a particle detecting unit (15) receiving scattered light from particles passing through the light curtain (FL) to detect the particles; and a calculating unit (22) calculating particle concentration based on the total number of the particles detected by the particle detecting unit (15) in a volume of an airflow passing through the light curtain (FL) in a unit time.

Abstract: A reference voltage generation circuit generates a reference voltage and outputs it to an amplifier reference voltage line. A power-supply-noise adding circuit adds power supply noise superimposed on a power supply to the reference voltage generated by the reference voltage generation circuit. A differential amplifier amplifies a difference between a voltage of a vertical signal line and a voltage of an amplifier reference voltage line and outputs the amplified voltage.

Abstract: A power supply voltage containing a noise component is supplied to each pixel at the time of sampling of a reset level of a signal read out from each pixel, and a power supply voltage in which the noise component is suppressed is supplied to each pixel at the time of sampling of a read level of the signal read out from each pixel.

Abstract: In a first signal conversion circuit, a first electrode of a first capacitor is connected to a first signal line, and a second electrode thereof is connected to a first node. In a second capacitor, a third electrode thereof is connected to a second signal line, and a fourth electrode thereof is connected to a second node. In a first inverting amplifier including a first negative feedback switch, a first input electrode is connected to the first node, and a first output electrode is connected to a third node. In a second inverting amplifier including a second negative feedback switch, a second input electrode is connected to the second node. A first averaging switch is connected between a first node and second node. A second averaging switch is connected between third node and fourth node.

Abstract: A solid-state image sensor which includes a pixel section, AD converter, line memory, controller and synthesizer is disclosed. The line memory stores a digital signal output from the AD converter. The controller controls the pixel section and AD converter to subject analog signals of different exposure times to an AD converting process by use of the AD converter and transfer the thus AD-converted signals to the line memory in an accumulation period of charges of one frame. The synthesizer is supplied with digital signals of different exposure times from the line memory, compare a fist signal obtained by adding signals of short and long exposure times with a second signal obtained by amplifying the signal of short exposure time by the ratio of the signal of short exposure time to the signal of long exposure time, select a larger one of the compared signals and output the selected signal.

Abstract: A solid-state image sensor which includes a pixel section, AD converter, line memory, controller and synthesizer is disclosed. The line memory stores a digital signal output from the AD converter. The controller controls the pixel section and AD converter to subject analog signals of different exposure times to an AD converting process by use of the AD converter and transfer the thus AD-converted signals to the line memory in an accumulation period of charges of one frame. The synthesizer is supplied with digital signals of different exposure times from the line memory, compare a fist signal obtained by adding signals of short and long exposure times with a second signal obtained by amplifying the signal of short exposure time by the ratio of the signal of short exposure time to the signal of long exposure time, select a larger one of the compared signals and output the selected signal.

Abstract: A level shift circuit encompasses a first transmission circuit configured to transmit a leading edge of an input signal, a second transmission circuit configured to transmit a trailing edge of the input signal, and a composite circuit configured to generate an output signal by synthesizing the leading edge and the trailing edge.

Abstract: A level shift circuit encompasses a first transmission circuit configured to transmit a leading edge of an input signal, a second transmission circuit configured to transmit a trailing edge of the input signal, and a composite circuit configured to generate an output signal by synthesizing the leading edge and the trailing edge.