| 摘要 |
<p>The invention relates to a light sensor with increased sensitivity and improved reaction speed. Said light sensor comprises a photo-transistor (20) and a source-follower transistor as impedance transformer for the potential of a main electrode of the photo-transistor. A second transistor (22) is provided as feedback element between the second main electrode (202) of the photo-transistor and the control electrode (203) thereof.</p> |
