| 摘要 |
PURPOSE:To improve detecting accuracy by decreasing cross talk and to optimize mass production by efficiently conducting machining work of thermal separation, by providing holes in the entire overlapped parts in the longitudinal direction of neighboring detect parts. CONSTITUTION:A sheet of pyroelectric plate 1 is fixed to supporting tables 6 at both ends of the plate in the longitudinal direction. Holes 2, which penetrate the upper and lower surfaces of the plate, are formed in the longitudinal direction with a specified interval being provided. A detecting part 3 is provided at a part, which is held by the neighboring holes 2. The length of the part 3 is equal to the length between both ends of the hole 2 in the direction perpendicular to the longitudinal direction of the pyroelectric plate 1. An individual electrode 4 is provided on the upper surface of the pyroelectric plate 1 so as to face the detecting part 3. A common electrode 5 is formed on the lower surface of the pyroelectric plate 1 so as to face the detecting part 3. |
