A fault detection device, adapted to an electronic device having a display screen, including a first warning unit, a second warning unit, a first sensor and a microprocessor. The first sensor is arranged in front of the display screen, and obtains and outputs a first current brightness value every first predetermined period of time. The microprocessor is coupled to the first warning unit, the second warning unit, and the first sensor, and compares the first current brightness value with a first previous brightness value. When the first current brightness value is equal to the first previous brightness value, the microprocessor enables the first warning unit to generate a first warning signal. When the first current brightness value is equal to the first previous brightness value for more than a second predetermined period of time, the microprocessor enables the second warning unit to generate a second warning signal.

The present invention relates to a detector assembly and method incorporating angled sensors, such that the area of coverage and detection sensitivity are maximized. The present invention finds particular applicability in the detection of sparks and the like in the presence of combustible gases, dusts, and the like via optical, infrared (IR), and ultraviolet (UV) methodologies and the like.

The present disclosure relates to an optical sensing accessory, an optical sensing device, and an optical sensing system. An optical sensing accessory, an optical sensing device, or an optical sensing system comprises a plurality of optical sensor modules and other electronic modules to achieve multi-site measurement. An optical sensor module comprises a light source, a photodetector, and a substrate. The light source is configured to convert electric power into radiant energy and emit light to an object surface. The photodetector is configured to receive the light from an object surface and convert radiant energy into electrical current or voltage. An optical sensing accessory, an optical sensing device, or an optical sensing system and comprise the optical sensor module and other electronic modules to have further applications.

Devices, systems, and methods are disclosed for attaching a sensor system to luminaires of a variety of shapes and sizes. Specifically, a 3D sensor clip is disclosed with adjustable components configured to attached the 3D sensor clip to a luminaire such as to adjust the position of a color sensor in the 3D sensor clip relative to a luminaire. Devices, systems, and methods are also disclosed for using visual light communication (VLC)/dark light communication (DLC) for communications in a lighting system, including automated identification of luminaires.

The examples relate to a method and apparatus to measuring ambient light information that is used in the manipulation or augmentation of an image presented on a display. The apparatus measures ambient light characteristic information from at least one direction in an environment in which the apparatus is located. The measured ambient light characteristic enable substantially real time generation and application of an image effect to an image presented on a display device.

A received-light amount measurement system is provided. The received-light amount measurement system includes: a first device that is wearable and obtains a first amount of received light; and a controller that, obtains first information on the first amount of received light from the first device. When the first amount of received light is less than or equal to a first specified value, the controller calculates interpolation information for interpolating the first amount of received light during a time period in which the first amount of received light is less than or equal to the first specified value, and determines the interpolation information as an interpolated amount of received light obtained by the first device.

The invention features devices and methods for collecting and measuring light from external light sources. In general, the devices of the invention feature a light diffusing element, e.g., as a component of a light collector, connected by a light conducting conduit, e.g., a fiber optic cable, to a light measuring device, e.g., a spectrometer. This light diffusing element allows, e.g., for substantially uniform light diffusion across its surface and thus accurate measurements, while permitting the total footprint of the device to remain relatively small and portable. This light diffusing element also allows flexibility in scaling of the device to permit use in a wide range of applications.

A signal guide for a sensor device is disclosed herein. The signal guide can include a base having a first proximal aperture, where the first proximal aperture has a first cross-sectional profile, where the first proximal aperture is configured to be disposed proximate to a first transceiver element of the sensor device. The signal guide can also include a body disposed adjacent to the base, wherein the body comprises a first main channel that adjoins the first proximal aperture. The signal guide can further include a distal end disposed adjacent to the body opposite the base, where the distal end includes a first distal aperture that adjoins the first main channel, where the first distal aperture has a second cross-sectional profile, where the first distal aperture is configured to be disposed proximate to an ambient environment.

Automated dynamic devices, systems, and methods for identifying and commissioning lighting systems are disclosed. In particular, sensor systems are configured to read barcodes for identifying luminaires in a lighting system, and lumen levels of the luminaires are adjustable to provide appropriate lighting for the sensors to read the barcodes. The sensors may also be attached to sensor clips that allow sensors to be positioned in a variety of locations and orientations on different luminaires.

An ambient light sensor of an electronic device is calibrated using a calibration device and method which combines multiple sources of light having different wavelengths into a single calibration beam of light. This calibration beam of light provides a consistent and reproducible methodology for testing and calibrating the ambient light sensor.