| 摘要 |
PURPOSE:To selectively detect infrared rays having various wavelengths, by making an inner pipe revolvable in a double pipe Dewar structure container and providing at least two photoelectric converter elements to the outer peripheral surface of the inner pipe corresponding to the light pervious window provided to the outer pipe. CONSTITUTION:A revolving mechanism 26 for revolving an inner pipe 22 is provided to the outer pipe 23 and the inner pipe 22 of a double pipe Dewar structure container 21 being a main body to revolve the inner pipe 22 through the airtight rotary seal mechanism 27 provided between the inner and outer pipes 22, 23. At least two or more photoelectric converter elements, for example, quantum type infrared ray detection elements 29a, 29c different in a detection wavelength sensitivity region are provided to the outer peripheral surface, which corresponds to the light pervious windows 24 provided to the outer pipe 23, of the inner pipe 22.
|
