A method and system for automatically determining a utility light malfunction is provided. The method includes receiving, from a first hardware device, luminance data specifying current luminance levels associated with utility light apparatuses. Location data specifying a geographical location for each utility light apparatus is retrieved and the luminance data and location data are analyzed with respect to historical luminance data and historical location data associated with the utility light apparatuses. The analysis results in determining that a group of utility light apparatuses include first current luminance levels differing from previous luminance levels of the group. A list and associated map specifying a group of geographical locations associated with the group is generated. A control signal enabling control of a vehicle is transmitted to the vehicle and associated video data is retrieved via the vehicle during travel in accordance with the map.

The present disclosure relates to a driving assistance system, includes: a light detection and ranging module configured to detect position parameters of objects around the light detection and ranging module; a LiFi driving module connected to the light detection and ranging module and being capable of receiving the position parameters and modulating the position parameters to generate a LiFi signal; and a lighting module connected to the LiFi driving module, and configured to provide lighting and transmit the LiFi signal.

The present disclosure relates to a driving assistance system, includes: a light detection and ranging module configured to detect position parameters of objects around the light detection and ranging module; a LiFi driving module connected to the light detection and ranging module and being capable of receiving the position parameters and modulating the position parameters to generate a LiFi signal; and a lighting module connected to the LiFi driving module, and configured to provide lighting and transmit the LiFi signal.

A wavelength checker includes an optical waveguide chip. A known arrayed-waveguide diffraction grating is formed on the optical waveguide chip. The wavelength checker includes a light conversion unit made of a conversion material that converts infrared light into visible light. The light conversion unit is arranged on an output side of a plurality of first output waveguides of the optical waveguide chip to be capable of receiving light emitted from the plurality of first output waveguides. The light conversion unit is formed on a side surface of a support facing an output end surface of the optical waveguide chip. The support is fixed to a main board.

A cultivation container includes a waveguide substrate that totally reflects and guides measurement light incident from a side end surface of the waveguide substrate, and a surrounding wall that stands upright on a top surface of the waveguide substrate and forms a cell cultivation space. The surrounding wall includes a shielding part that shields the measurement light.

A cultivation container includes a waveguide substrate that totally reflects and guides measurement light incident from a side end surface of the waveguide substrate, and a surrounding wall that stands upright on a top surface of the waveguide substrate and forms a cell cultivation space. The surrounding wall includes a shielding part that shields the measurement light.

A sun exposure sensor for disposable or single use including a substrate having an upper surface and a lower surface; a sun exposure sensing portion disposed on the upper surface of the substrate, the sun exposure sensing portion comprising a fluorescent toner image, wherein the fluorescent toner image increasingly fades upon exposure to sunlight; a sun exposure scale disposed on the upper surface of the substrate, the sun exposure scale comprising an evaluation image for evaluating an amount of fading of the fluorescent toner image; an optional coating layer disposed over all or a portion of the upper surface of the substrate; an optional backing layer disposed over all or a portion of the lower surface of the substrate. A process for preparing the sensor using xerographic toner printing.

A sun exposure sensor for disposable or single use including a substrate having an upper surface and a lower surface; a sun exposure sensing portion disposed on the upper surface of the substrate, the sun exposure sensing portion comprising a fluorescent toner image, wherein the fluorescent toner image increasingly fades upon exposure to sunlight; a sun exposure scale disposed on the upper surface of the substrate, the sun exposure scale comprising an evaluation image for evaluating an amount of fading of the fluorescent toner image; an optional coating layer disposed over all or a portion of the upper surface of the substrate; an optional backing layer disposed over all or a portion of the lower surface of the substrate. A process for preparing the sensor using xerographic toner printing.

A wearable UV sensor includes a UV pass filter; a UV phosphor material; and a visible light sensing device, wherein the UV sensor is configured to receive light including visible light and UV light, wherein the UV pass filter directs the UV light to the UV phosphor material and the UV phosphor material fluoresces visible light in proportion to the UV light from the UV pass filter, and the visible light sensing device measures the visible light fluorescing from the UV phosphor material to determine the amount of the UV light entering the sensor, which correlates to the UV exposure of a subject wearing the UV sensor.

A wearable UV sensor includes a UV pass filter; a UV phosphor material; and a visible light sensing device, wherein the UV sensor is configured to receive light including visible light and UV light, wherein the UV pass filter directs the UV light to the UV phosphor material and the UV phosphor material fluoresces visible light in proportion to the UV light from the UV pass filter, and the visible light sensing device measures the visible light fluorescing from the UV phosphor material to determine the amount of the UV light entering the sensor, which correlates to the UV exposure of a subject wearing the UV sensor.