Disclosed are a system and method for wired/wireless-online/offline communication-based continuous, real-time proportional and radiometric measurement, processing, and monitoring of the output of UV sources which generate UV radiation that can be used in water disinfection, surface disinfection, air, and room disinfection processes and for non-disinfection purposes. The system and method are provided to measure and monitor the UV output of the UV sources or in the environment continuously in real-time through externally placed sensors. In the system and method, data from the sensors is processed in a microprocessor-based electronic module, and the information is transmitted to an online/offline interface accessible to the end-user via wired/wireless communication.

Systems and methods to measure light being observed by a person's eyes, determine that the light has met a preset light threshold, and indicate this to the person. A device comprises: a sensor of a light; a controller to receive a sensor signal from the sensor and to determine the light has met a preset threshold, wherein the sensor signal corresponds to a light characteristic sensed by the sensor; and an indicator to receive an indicator signal from the controller and to generate an indicator to a user, wherein the indicator signal indicates a preset threshold has been met.

Disclosed are devices, systems, and methods for remote and quantitative monitoring of, analysis of, and/or response to the internal conditions of a physical object (e.g., an artistic work) and the external microenvironment impacting the physical object. In some aspects, an art tracker device for monitoring health of an artwork includes a substrate inconspicuously, unobtrusively, and noninvasively attachable to the artwork: one or more of sensors that monitor an internal condition of the artwork itself and/or an external condition from a microenvironment surrounding a portion of or the whole artwork: a controllable power supply unit to selectively power device components: a processing unit that processes sensor outputs as data associated with the detected conditions of the artwork; and a communications unit to wirelessly transmit the data to a remote device.

The present invention provides an ultraviolet inspection tool having excellent color formability with respect to light having a wavelength of 222 nm even in a case where an irradiation amount of the light having a wavelength of 222 nm is small, an ultraviolet inspection kit, and an ultraviolet inspection method. The ultraviolet inspection tool of the present invention is an ultraviolet inspection tool including an ultraviolet-sensing layer containing a color-forming agent and an acid generator, in which the color-forming agent has at least one selected from the group consisting of a lactone structure, a lactam structure, a sultone structure, a sultine structure, a ring-opened structure of these structures, and an azobenzene structure, a molecular weight of the acid generator is 600 or less, and a mass ratio of a content of the acid generator to a content of the color-forming agent is 1.01 to 40.00.

A device that uses a UV sensing element capable of converting photons from a high temperature thermal source, to an electrical current. Such current is then compared with the theoretical current to be obtained from a source with the dimensions of the actual source. The theoretical current is obtained by integrating.

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.

An apparatus for monitoring UV radiation exposure and notifying a user of a risk of overexposure is disclosed. The apparatus receives physical characteristic input for a user, as well as a current UV radiation level and an exposure time for at least one area of the user's body. Body mapping data is generated, and a UV exposure risk for each area is assessed based on the input and the body mapping data. A threshold UV radiation exposure value for each area is determined based on the UV exposure risk. A current UV radiation exposure value is determined based on the current UV radiation level input. The current UV radiation exposure value is compared to the threshold UV radiation exposure value to generate UV radiation exposure data. The user is notified of a remaining time for UV radiation exposure based on the UV radiation exposure data.

To grasp a state of a combustion apparatus based on a flame state of a burner, a discharge number measurement unit measures the number of discharges of a flame sensor per unit time. A light emission information generation unit generates, as light emission information, information obtained based on a value obtained by dividing a total (accumulation) of the number of discharges per unit time measured by the discharge number measurement unit by a total measurement time. A determination unit determines the state of the combustion apparatus to be inspected based on the light emission information generated by the light emission information generation unit as described above.

Method, product and blocking element of short wavelengths in LED-type light sources consisting of a substrate with a pigment distributed on its surface and, in that said pigment has an optical density such that it allows the selective absorption of short wavelengths between 380 nm and 500 nm in a range between 1 and 99%.