| 摘要 |
The radiator (10) has a set of LEDs (17-21) arranged parallel to a facade or a window frame, where the LEDs are tilted different from each other around a radiation cone axis and divided into two groups (12, 13). The LEDs of each group are engaged to the inner LEDs of the respective group by the outer LEDs around angles (alpha1-alpha4) that are inclined against a horizontal reference base (38). The angles and distances (43) of the LEDs from the reference base to the LEDs of each group exhibit a larger value from the outer LEDs to the inner LEDs. |
