An optical system includes a splitting optic configured to receive a light beam from a light source and form a set of light bands radiating from the optical system at predetermined angles relative to illuminate a scene. The optical system further includes a lens configured to project a field of view of the scene into a two-dimensional format. The optical system further includes an optical sensor arranged offset from the central axis of the lens to capture a segment of the field of view projected by the lens.

The invention provides a system and related equipment for the precise measurement of the output characteristic of a light source, e.g., a dental light curing unit (LCU) or light for photodynamic therapy, using a light collector, a light detector, and a computer programmed to deliver the value of the output characteristic of the light source to the user. The systems allow for the determination of a proper 5 exposure time or the selection of a light source as needed for a specific application. The invention also provides a light device.

One embodiment provides a pyranometer, including: a dome; a thermopile-based sensor comprising a receiving surface; a diffusor configured to diffuse radiation external to the pyranometer and passing through the dome, toward the receiving surface of thermopile-based sensor; and at least one optical filter arranged in an optical path of the radiation in front of the receiving surface of the thermopile-based sensor so as to modify the spectral composition of the radiation measured by the thermopile-based sensor. Other aspects are described and claimed.

An ultraviolet light radiation sensing device to be wearable by a human being is provided, the device including a front part and a rear part, an ultraviolet light radiation sensor with associated microprocessor on a printed circuit board, a battery, and a wireless communication unit, e.g. for Bluetooth communication. If the front and rear part are made from a metal or metal alloy, and are interconnected by a middle member made from electrically insulating polymer material, the front and rear parts constitute antenna elements of the wireless communication unit. The device is intended to enable interaction with application data of a smartphone, a method being provided to establish recommended UV-dose and related exposure time by the sun onto the skin of the human being.

Devices implementing light communications use waveguides to efficiently collect light used for the light communications and propagate that collected light to a sensor. More particularly, light collected from one or more sensors propagates along a TIR waveguide until disrupted by a diffusive element, which effectively directs the propagating light to a sensor. In so doing, the solution presented herein increases the amount of light available for the light communications and/or reduces the number of sensors needed for the light communications, e.g., by providing light collected from multiple different locations to a single sensor. The waveguide solution presented herein may be implemented inside a device and/or along an exterior surface, e.g., housing or casing, of a device.

Various implementations relate generally to multi-sensor devices. Some implementations more particularly relate to a multi-sensor device including a ring of radially-oriented photosensors. Some implementations more particularly relate to a multi-sensor device that is orientation-independent with respect to a central axis of the ring. Some implementations of the multi-sensor devices described herein further include one or more additional sensors. For example, some implementations include an axially-directed photosensor. Some implementations also can include one or more temperature sensors configured to sense an exterior temperature, for example, an ambient temperature of an outdoors environment around the multi-sensor. Additionally or alternatively, some implementations include one or more of an infrared sensor or infrared sensors, a cellular communication circuit, and a GPS module.

An electronic device including an optical component and an enclosure comprising a glass ceramic region is disclosed. The optical properties of the glass ceramic region and the positioning of the glass ceramic region with respect to the optical component can affect the performance of the optical component, the visual appearance of the optical component, or both.

Various implementations relate generally to a multi-sensor device. Some implementations more particularly relate to a multi-sensor device including a ring of radially-oriented photosensors. Some implementations more particularly relate to a multi-sensor device that is orientation-independent with respect to a central axis of the ring. Some implementations of the multi-sensor devices described herein also include one or more additional sensors. For example, some implementations include an axially-directed photosensor. Some implementations also can include one or more temperature sensors configured to sense an exterior temperature, for example, an ambient temperature of an outdoors environment around the multi-sensor. Additionally or alternatively, some implementations can include a temperature sensor configured to sense an interior temperature within the multi-sensor device. Particular implementations provide, characterize, or enable a compact form factor. Particular implementations provide, characterize, or enable a multi-sensor device requiring little or no wiring, and in some such instances, little or no invasion, perforation or reconstruction of a building or other structure on which the multi-sensor device is mounted.

Various implementations relate generally to a multi-sensor device. Some implementations more particularly relate to a multi-sensor device including a ring of radially-oriented photosensors. Some implementations more particularly relate to a multi-sensor device that is orientation-independent with respect to a central axis of the ring. Some implementations of the multi-sensor devices described herein also include one or more additional sensors. For example, some implementations include an axially-directed photosensor. Some implementations also can include one or more temperature sensors configured to sense an exterior temperature, for example, an ambient temperature of an outdoors environment around the multi-sensor. Additionally or alternatively, some implementations can include a temperature sensor configured to sense an interior temperature within the multi-sensor device. Particular implementations provide, characterize, or enable a compact form factor. Particular implementations provide, characterize, or enable a multi-sensor device requiring little or no wiring, and in some such instances, little or no invasion, perforation or reconstruction of a building or other structure on which the multi-sensor device is mounted.

A concealment component for an optical sensor device includes an optical filter and one or more diffusive optical structures. The one or more diffusive optical structures are configured to distribute light in a diffused pattern on an input surface of the optical filter. The optical filter is configured to pass a first set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are associated with a particular wavelength range, and prevent a second set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are not associated with the particular wavelength range, from passing. Preventing the second set of light beams from passing is to cause the second set of light beams to be directed away from or absorbed by the concealment component in a concealment pattern.