| 摘要 |
The present invention relates to a photo radiation intensity sensor ( 1 ) comprising a housing ( 2 ) having a lens ( 4 ), and a printed circuit board ( 7 ) placed in such way in the housing ( 2 ) that one of its edges ( 37 ) faces the lens ( 4 ), where at least a first and a second sensing element ( 5 a, 5 b) are placed at a first side ( 7 ') of the printed circuit board ( 7 ), where the first and second sensing elements ( 5 a, 5 b) are separated by a first flange ( 8 ), serving as a shading element. Further, at least a third sensing element ( 5'; 5 c) is placed at a second side ( 7 '') of the printed circuit board ( 7 ), arranged to detect both the direction and the intensity of the radiation source and for producing corresponding output signals. The present invention also relates to a calibration and measurement method.
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