Dual-mode CMOS imaging sensor with supporting LED

摘要

The present invention relates to a sensor device for sensing an image of an object, wherein a detection means ( 14 ) for detecting radiation received from the object is supported by a light-emitting semiconductor means ( 12 ) for emitting radiation towards said object during a predetermined operation period of the detection means ( 14 ). The detection means ( 14 ) can be operated even at low light intensity conditions and at a low power consumption. The detection means ( 14 ) may be a two-side illuminated detection means, wherein one side is supported by the light-emitting semiconductor means ( 12 ) and the other side is a back-etched side with increased sensitivity. A cheap and very small multi-purpose camera or sensor module can thereby be provided.