A system for monitoring ultraviolet (UV) exposure of a wearer. The system comprises a wearable device operable to sense UV radiation levels to which the wearer is exposed, and to transmit UV radiation information. The system further comprises an external computing device in remote communication with the wearable device, operable to receive the UV radiation information from the wearable device and configured to determine the wearer's real-time UV index value and the wearer's daily cumulative percentage of minimal erythema dose based upon the UV radiation information.

Embodiments of the present invention provide a unique new approach to generating operating condition information used for assessing flow assurance and structural integrity. More specifically, apparatuses, systems and sensor housing assemblies configured in accordance with embodiments of the present invention utilize fiber optic sensors for enabling monitoring of operating condition information within one or more elongated tubular members within a subsea environment. To this end, such fiber optic sensors connected by lengths of optical fiber are strategically placed at a plurality of locations along a length of each elongated tubular member thereby allowing critical operating conditions such as strain, temperature and pressure of the elongated tubular member and/or a fluid therein to be monitored. A viscous media is used for mitigating attenuation associated with exposure of optical fiber exposed to forces generated by pressure within the subsea environment.

A photoelectric conversion apparatus includes a waveform shaping circuit, a reference circuit, and a counter. The waveform shaping circuit is configured to generate a first pulse signal based on a signal output from an avalanche diode. The reference circuit is configured to generate a second pulse signal without depending on incident light. The counter is connected to the waveform shaping circuit and the reference circuit to count a number of occurrences of a pulse signal. The pulse signal is based on at least one of the first pulse signal and the second pulse signal, and is input to the counter.

What is disclosed are systems and methods of optical correction for pixel evaluation and correction for active matrix light emitting diode device (AMOLED) and other emissive displays. Optical correction for correcting for non-homogeneity of a display panel uses sparse display test patterns in conjunction with a defocused camera as the measurement device to avoid aliasing (moiré) of the pixels of the display in the captured images.

There is provided a photodetection circuit capable of improving distance measuring performance.

The photodetection circuit according to an embodiment of the present disclosure includes: an avalanche photodiode; a charging circuit that supplies a voltage to the avalanche photodiode; an input amplifier including a comparison circuit in which a voltage level of an output terminal changes according to a comparison result between a voltage of an input terminal connected to the avalanche photodiode and a reference voltage, and a voltage control circuit that changes a potential of the reference voltage; and a state detecting circuit that sets timing for causing the voltage control circuit to change the potential of the reference voltage on the basis of a detection result of the voltage level.

A foldable mobile electronic device is provided. The foldable mobile electronic device includes a processor configured to recognize, based on the data received from the first sensor, a change in a state of the foldable mobile electronic device from the folded state to a partially folded state before reaching an unfolded state, to identify a first illuminance by using the data received from the second sensor, based on the recognized state change, to set a first luminance corresponding to the first illuminance as a brightness of the display, to when an angle identified after the state change falls within a predetermined first angle range or when a specific time has not elapsed after the state change, perform a real-time adjustment operation on the brightness of the display, based on a second illuminance identified using the second sensor, and to when the angle identified after the state change is outside the first angle range or when the specific time has elapsed after the state change, perform a hysteresis adjustment operation on the brightness of the display, based on the first illuminance.

A sensor including at least one sensor chip for detecting a radiation; and an electronics unit with a digital, bidirectional connection line and with a standby control circuit, as well as with an active status line; wherein the connection line is configured to be connected to an external activation unit; and the standby control circuit is configured to determine whether the connection line is externally addressed by the activation unit when the connection line is not addressed by the active status line, and precisely then to place the sensor in a standby mode.

An optical sensing circuit including a capacitor, a light sensing unit, a compensation unit, and a switching element is provided. The light sensing unit, the compensation unit, and the switching element are electrically connected to the capacitor. The light sensing unit senses the light of a first color. The compensation unit senses the light of a second color complementary to the first color. When a light illuminates the light sensing unit and the compensation unit, a first light component of the light corresponding to the first color causes the light sensing unit to generate a first current, and a second light component of the light corresponding to the second color causes the compensation unit to generate a second current, which reduces the amount of the charging or the discharging current when the first current charges or discharges the capacitor whose voltage is read as information for determining light color.

Given the complexity of architectural spaces and the need to calculate spherical irradiances, it is difficult to determine how much ultraviolet radiation is necessary to adequately kill airborne pathogens. An interior environment with luminaires is modeled. Spherical irradiance meters are positioned in the model and the direct and indirect spherical irradiance is calculated for each sensor. From this, an irradiance field is interpolated for a volume of interest, and using known fluence response values for killing pathogens, a reduction in the pathogens is predicted. Based on the predicted reduction, spaces are built accordingly, and ultraviolet luminaires are installed and controlled.

[Task] To provide an automatic analysis apparatus including a photomultiplier tube which controls a sensitivity of the photomultiplier tube without adjusting a high voltage value. [Solution] An automatic analysis apparatus according to the present invention includes a photomultiplier tube which detects light from a reaction vessel; a determination unit which determines an output signal of the photomultiplier tube in a case where the photomultiplier tube is irradiated with first light; and a control unit which irradiates the photomultiplier tube with second light to lower a sensitivity of the photomultiplier tube in accordance with a determination result by the determination unit.