Abstract:
A portable UV detection apparatus is disclosed. In one embodiment, the UV detection apparatus includes a UV detection device integrated with a skin type measuring device. A controller can be included in the apparatus that is in communication with the skin type measuring device and the UV detection device. The controller can provide information to the user regarding the amount of ultraviolet radiation present in the environment. In an alternative embodiment, the UV detection apparatus includes a UV detection device in conjunction with a light sensor. The light sensor can be configured to activate the UV detection device should light at a particular intensity be present in the environment. The UV detection device as described above can be configured to measure UVA radiation, UVB radiation, and/or UVC radiation.
Abstract:
A system, method, and apparatus for determining the remaining time a user has before maximum natural UV radiation exposure is reached, and the clock time at which natural UV radiation exposure should end, based on measured irradiation and other parameters.
Abstract:
A method and apparatus for integrating photovoltaic cells into a ground plane of satellite and terrestrial antenna systems is disclosed. The system provides an increase in available surface area for power generation without increasing the overall size. In one embodiment, a substrate has both photovoltaic cells and a conductive spacer formed on one side, where the conductive spacer has a thickness substantially equal to the thickness of the photovoltaic cells. In another embodiment, an antennae element may be formed on the top side of the conductive spacer, where the photovoltaic cells form a ground plane for the antenna element.
Abstract:
A photodetector of the invention is characterized by having a plurality of detector elements that are arranged over a light-transparent substrate and are connected in parallel. A foldable portable communication tool having two display portions of the invention is characterized by including one photodetector which includes a plurality of detector elements connected in parallel.
Abstract:
A portable UV detector is provided having a printed circuit board, a display module and multiple batteries housed in a cylindrical body. A display panel window is located on the external wall of the cylindrical body to mount the display module with an appropriate UV level indicator. A light detector located underneath the filtering lens is enabled at the push of a button to measure the intensity of incoming UV light and display a corresponding level on the display module.
Abstract:
An instrument and method for optically calibrating and balancing low level luminances of lighted instrument panel displays within the operator station of a vehicle is described which comprises a self-contained, calibrated luminance source and a beamsplitter for combining and juxtaposing an image of the calibrated luminance source with an image of the luminance from a lighted instrument panel display to be calibrated or balanced, whereby the images may be compared in luminance, the lighted instrument panel display being adjustable in intensity using the vehicle instrument panel light trim capability.
Abstract:
Die vorliegenden Erfindung bezieht sich auf eine Sensoreinheit zur Messung des Zustandes und der Änderung physikalischer Größen, etwa von Temperaturen und Temperaturdifferenzen, in Abhängigkeit von einer physikalischen Umgebungsgröße, etwa der mit der Tempera- turänderung verknüpften Intensität der Solarstrahlung. Eine autarke Sensoreinheit zum Messen einer Bestrahlungsstärke eines Solarmoduls umfasst ein elektrisches Energieerzeugungselement (102) zum Erzeugen von elektrischer Energie aus thermischer und/oder mechanischer Energie und eine Steuer- und Auswerteeinheit zum Ansteuern des Energieerzeugungselements. Dabei ist die Steuer- und Auswerteeinheit (104) so ausgebildet, dass sie aus gemessenen Betriebsgrößen des Energieerzeugungselements ein Sensorsignal erzeugt, das von der Bestrahlungsstärke des Solarmoduls abhängt. Die Steuer- und Auswerteeinheit (104) ist so ausgebildet, dass sie eine Temperaturdifferenz und daraus eine solare Bestrahlungsstärke, die auf die Sensoreinheit einwirkt, bestimmt.
Abstract:
A system configured to monitor ambient illumination experienced by a subject. In one embodiment, the system comprises an illumination sensor, a timer, and a storage module. The illumination sensor is configured to monitor an intensity of ambient illumination within two or more wavelength ranges by generating one or more output signals that convey information related to the intensity of ambient illumination within the two or more wavelength ranges. The timer is configured to indicate the passage of periods of time. The storage module is configured to store information related to the intensity of ambient illumination within the two or more wavelength ranges, as conveyed by the one or more output signals, for individual periods of time. The system is portable to be carried by the subject.
Abstract:
A system configured to monitor ambient illumination experienced by a subject. In one embodiment, the system comprises an illumination sensor, a timer, and a storage module. The illumination sensor is configured to monitor an intensity of ambient illumination within two or more wavelength ranges by generating one or more output signals that convey information related to the intensity of ambient illumination within the two or more wavelength ranges. The timer is configured to indicate the passage of periods of time. The storage module is configured to store information related to the intensity of ambient illumination within the two or more wavelength ranges, as conveyed by the one or more output signals, for individual periods of time. The system is portable to be carried by the subject.