Abstract: Described herein is a detector for detecting optical radiation, especially within the infrared spectral range, specifically with regard to sensing at least one of transmissivity, absorption, emission and reflectivity, being capable of avoiding or diminishing a cross detection between sensor areas, specifically between adjacent sensor areas, thus, avoiding or diminishing a deterioration of a measurement based on the at least one sensor signal.

Abstract: Described herein is an illumination source adapted to generate a regular pattern integrated into a portable device, the illumination source including an array of light emitting diodes or laser light sources and a diffractive optical element. Also described herein is a detector including the illumination source, an array of optical sensors, where each optical sensor is configured to generate a sensor signal in response to an illumination of its respective light-sensitive area, and an evaluation device adapted to evaluate the sensor signal.

Abstract: Described herein is a mobile device with an optical detector including: at least one illumination source adapted to generate at least one illumination pattern for illuminating an object, where the illumination pattern includes a regular and/or constant and/or periodic pattern; at least one sensor element having a matrix of optical sensors, the optical sensors each having a light-sensitive area, where each optical sensor is configured to generate at least one sensor signal in response to an illumination of the light-sensitive area by at least one light beam propagating from the object to the detector; and at least one evaluation device adapted to determine at least one region of interest.

Abstract: Described herein is a spectrometer device. The spectrometer device includes: at least one filter element adapted to separate at least one incident light beam into a spectrum of constituent wavelength; at least one sensor element having a matrix of optical sensors, the optical sensors (116,142) each having a light-sensitive area; and at least one evaluation device configured for determining at least one longitudinal coordinate of an object.

Abstract: A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.