| 摘要 |
The invention relates to a detection device (1) with a housing (2), a sensor (5) in said housing, an inner window (6) and an outer window (7) both overlying the sensor (5). The invention is characterized in that the outer window (7) has a relatively high transmission coefficient below an upper wavelength value that is larger than the upper wavelength value of the inner window (6), wherein the outer window (7) has a thermal conductivity which is at least 2 times higher than the thermal conductivity of the inner window (6), preferably at least 4 times higher and most preferably at least 5 times higher,. The housing (2) includes a heating member (9) for transferring heat to the housing and to the inner and outer window for prevention of deposition of- and removal of moisture and/or ice. |
