| 摘要 |
PROBLEM TO BE SOLVED: To provide a pyroelectric element having a function of detecting an incident angle of infrared rays. SOLUTION: A pillar part 1 of a shape like a pillar with its height in the z-direction, where a pyroelectric coefficient becomes greatest, is formed above a plate part 2. An electric charge caused by an infrared ray IR, made incident on a side face 4 of the pillar part 1, is detected by electrodes 3a and 3b on both sides in the height direction of the pillar part 1.
|
