| 摘要 |
PROBLEM TO BE SOLVED: To provide an infrared detector having high sensitivity of infrared detection through each lens part of compound eye lenses.SOLUTION: The infrared detector arranges to partition a plurality of sensor elements detecting an infrared ray to use infrared sensors 41 forming a light receiving face 53. The compound eye lenses 47 distributing to disperse condensing positions of a plurality of lens parts 47a, 47b, 47c condensing the infrared ray on a light receiving face 53 of the infrared sensor 41 are used. An incident angle of the infrared ray incident on the light receiving face 53 from the lens parts 47a, 47c of a peripheral region is made small. The focal distance of each lens part 47a, 47b, 47c is adjusted to equalize magnification for imaging detection areas A, B, C detecting the infrared ray in each lens part 47a, 47b, 47c on the light receiving face 53. |
