| 摘要 |
<p>This infrared detector includes: a detecting body, which is configured of at least one pyroelectric element, and which is provided with first and second detecting sections that are configured to respectively generate first and second signals; a circuit block, which is provided with first and second amplifying sections that are configured to respectively amplify the first and second signals; a housing, which has a window hole, and which houses the detecting body and the circuit block; and an optical filter, which is provided in the window hole, and which is configured to transmit infrared. The optical filter has first and second transmitting regions at respective positions that correspond to the first and second detecting sections. The optical filter is configured such that infrared transmitting characteristics of the first transmitting region are different from those of the second transmitting region.</p> |
