| 摘要 |
An infrared ray detector comprising an infrared ray detecting body, a pair of opposing portions, a bimorph vibrator connected to the pair of opposing portions for intermitting infrared rays incident upon the detector, and a housing containing these elements, the housing being provided with an opening for incidence of infrared rays. The pair of opposing portions comprise infrared ray transmitting portions and infrared ray non-transmitting portions. The infrared ray transmitting portions in one of opposing portions is periodically overlapped by the bimorph vibrator with the infrared ray transmitting portions or infrared ray non-transmitting portions in the other opposing portion, so that incident infrared rays are intermitted. |
