Abstract: A dermatoscope or endoscope inspection device which can be calibrated at high accuracy to be able to focus at a certain depth, e.g. below the top surface of the skin. A calibration pattern is provided or can be located at a reference viewing surface of an inspection device such as a dermatoscope or endoscope. It is important for a dermatoscope to know with the best accuracy available at what absolute depth below the top of the skin the device is focused. The dermatoscope or endoscope inspection device includes focusing means and by knowing a relationship between a digital driving level which shifts the focus position of the focusing means and the corresponding absolute change in focus depth, it is possible to know how deep the device is focused in absolute terms below the top of the skin.

Abstract: A dermatoscope or endoscope inspection device which can be calibrated at high accuracy to be able to focus at a certain depth, e.g. below the top surface of the skin. A calibration pattern is provided or can be located at a reference viewing surface of an inspection device such as a dermatoscope or endoscope. It is important for a dermatoscope to know with the best accuracy available at what absolute depth below the top of the skin the device is focused. The dermatoscope or endoscope inspection device includes focusing means and by knowing a relationship between a digital driving level which shifts the focus position of the focusing means and the corresponding absolute change in focus depth, it is possible to know how deep the device is focused in absolute terms below the top of the skin.

Abstract: A method and sensor system and software are described for use of at least two sensors for detecting a property such as the intensity, colour and/or colour point of light emitted from at least two display areas of a display device into the viewing angle of said display device, e.g. for real-time measurements, while the display is in use, and off-line measurements, namely when the normal display functionality is interrupted, with a high signal to noise ratio and a reduced amount of observed non-uniformities in the luminance. The sensors are substantially transparent. The entire area of the display is used for the measurements, which is the result of combining the contribution of the backlight and the panel, that both can exhibit luminance non-uniformities.