A light emitting system comprises an angularly varying light emitting device (AVLED) operable to individually adjust light flux output from the one or more light sources into different angular bins in the environment and a light sensor positioned to receive light from the environment. The AVLED emits light flux into different angular bins in the environment, the at least one light sensor provides first information related to light from the light flux from each of the different angular bins reflected from the environment in one or more spatial zones, and the AVLED adjusts the light flux output in at least one angular bin based at least in part on analysis of the first information received by the light sensor and a target light property for the one or more spatial zones. The target light property may be luminance, irradiance, or illuminance.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An illumination system (200) includes an illumination device (202); an optical element (206) positioned to receive light (208) from the illumination device (202); a layer (210) of a transparent material disposed on the optical element (206) and positioned to receive light (208) from the illumination device (202); and an interlock circuit (220) configured to measure a resistivity of the layer (210) of transparent material and to control operation of the illumination device (202) based on the measured resistivity.

An illumination system (200) includes an illumination device (202); an optical element (206) positioned to receive light (208) from the illumination device (202); a layer (210) of a transparent material disposed on the optical element (206) and positioned to receive light (208) from the illumination device (202); and an interlock circuit (220) configured to measure a resistivity of the layer (210) of transparent material and to control operation of the illumination device (202) based on the measured resistivity.

Devices of a load control system may communicate with each other via a network. The load control system may include different control devices, such as load control devices, input devices, or other devices capable of communicating with each other to perform load control. These control devices may be capable of providing feedback to a user that indicates different network information that may be used for network diagnostics and/or configuration. For example, a lighting control device may be capable of providing feedback via a corresponding lighting load that indicates network information that may be used in network diagnostics and/or configuration.

Devices of a load control system may communicate with each other via a network. The load control system may include different control devices, such as load control devices, input devices, or other devices capable of communicating with each other to perform load control. These control devices may be capable of providing feedback to a user that indicates different network information that may be used for network diagnostics and/or configuration. For example, a lighting control device may be capable of providing feedback via a corresponding lighting load that indicates network information that may be used in network diagnostics and/or configuration.

In some examples, a computer includes a display panel, a bezel around the display panel, a camera, and a plurality of separate light sources integrated into the bezel at respective different locations.

A method of determining a drive signal provided to a light-emitting diode (LED). The method including sensing, via a first sensor, a first light intensity corresponding to a natural light in a room, sensing, via a second sensor, a second light intensity for a zone of the room, determining, via the controller, an expected light intensity, and determining, via the controller, whether the second light intensity exceeds the expected light intensity. The method further including, in response to determining that the second light intensity exceeds the expected light intensity, determining, via the controller, an artificial light intensity, determining, via the controller, the drive signal based on a desired light intensity for the zone of the room, the artificial light intensity, the first light intensity, and the second light intensity, and controlling, via the controller, the driver to provide the drive signal to the LED array.

A method of determining a drive signal provided to a light-emitting diode (LED). The method including sensing, via a first sensor, a first light intensity corresponding to a natural light in a room, sensing, via a second sensor, a second light intensity for a zone of the room, determining, via the controller, an expected light intensity, and determining, via the controller, whether the second light intensity exceeds the expected light intensity. The method further including, in response to determining that the second light intensity exceeds the expected light intensity, determining, via the controller, an artificial light intensity, determining, via the controller, the drive signal based on a desired light intensity for the zone of the room, the artificial light intensity, the first light intensity, and the second light intensity, and controlling, via the controller, the driver to provide the drive signal to the LED array.