| 摘要 |
PROBLEM TO BE SOLVED: To provide an infrared detector which can be manufactured at a cost lower than a conventional one.SOLUTION: A heat receiving part 12 generates a temperature variation by receiving an infrared ray at a heat receiving face S. A condenser lens 11 condenses an infrared ray emitted from the outside onto the heat receiving face S. A light source 13 irradiates the heat receiving part 12 with probe light Lof a wavelength region passing through the heat receiving part 12. An imaging part 15 images a contrast pattern generated due to interference of the probe light Lreflected on the heat receiving part 12 to generate image data. On the heat receiving part 12, the light path length of the probe light Lpassing through the heat receiving part 12 changes as the refraction index changes so as to correspond to a temperature distribution on the light receiving face S. |
