Abstract:
The invention relates to a light sensing device for sensing ambient light intensity, comprising at least one ambient light sensor and an occlusion detector for detecting an object occluding the ambient light sensor. The invention is further related to a corresponding method for sensing ambient light intensity.
Abstract:
Embodiments provide a handheld fluorometer and method of determining a concentration of a product within a sample. In some cases the handheld fluorometer includes an immersible sensor head that measures a fluorescence of the product and a controller that calculates the concentration of product. In some cases the handheld fluorometer includes a handheld controller module, an immersible sensor head connected to the controller module, a sample cup for containing a water sample, and a fastener that removably fastens the sample cup about the immersible sensor head. In some cases the sensor head is angled with respect to the controller module and the fluorometer provides a substantially stable base. The sample cup can be removed to acquire a sample of water containing the product and then refastened about the sensor head for determining the concentration.
Abstract:
The invention relates to a miniaturized optoelectronic system for producing static or moving images of scenes or individual objects (11) and for determining and evaluating the spectral properties of the objects (11) within a scene or of individually imaged objects (11). According to the invention, a system of this type comprises optical components and beam paths for producing static of moving images of a scene or of an individual object (11), optical components and beam paths for determining the spectral properties of one or more objects (11) contained in the scene or of the individual object (11), at least one image sensor as an optoelectronic converter, electronic components for processing the output signals of the image sensor, an information output unit designed to present the results in a sensory manner, preferably for presenting the spectral properties in association with the objects (11) in a visually perceptible manner, and means for supply power to electronic components, wherein a design of the system in the form of a hand-held device, also as a handheld, is provided for.
Abstract:
A proximity sensor for use in a portable computing device is described. In particular various embodiments of a proximity sensor which fit in an extremely small portion of a cellular phone, and accurately determine the presence of a user's head in close proximity to a surface of the cellular phone.
Abstract:
An apparatus is provided for performing photothermal measurements on a object. The apparatus, which may be provided as a handpiece, houses optical components including a laser, an infrared detector, a dichroic beamsplitter, and focusing and beam directing optics for the delivery of a laser beam to, and the collection of photothermal radiation from, a measured object. Some of the optical components may be provided on an optical bench that is directly attached to a thermally conductive tip portion for the passive heat sinking of internal optical components. The apparatus may further include a sampling optical element and a photodetector for the detection of luminescence, and a camera for obtaining an image of the object during a diagnostic procedure. The apparatus may be employed for the scanning of a tooth to determine an oral health status of the tooth.
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.