| 摘要 |
<p>PURPOSE:To measure the distance between a shell and a targed by setting four objective mirrors at the side face of a shell body structure, providing infrared ray lenses corresponding to each mirror and converging infrared rays at the center thereof only in the case where the target of a constant distance is caught. CONSTITUTION:A current collecting type infrared ray detector 1, for example, is composed of the pitch of 0.1mm and 60 elements, and consists of cross-shaped arranged titanic acid lead ceramic. Further infrared ray lenses, for example, are made of the focal distance of 100mm, the aperture ratio of 35mm and germanium of F/2.8 and a reflecting protecting film is deposited at the center of the infrared ray wave length of 10mum. The window of the detector 1 has an infrared ray filter function Further the center axis interval of two facing objective mirrors of inside mirrors 4 pyramidally arranged, for example, is made 300mm. At the interval, for example, adjusting angles for allowing the infrared rays from a forward target to coincide on the detector 1 are calculated by a fixed expression and can be detected in a non-deviating condition, Further, because each infrared ray coincides at only the time of the target of the constant distance, in the case where the distance is long, measurement thereof can be performed with few deviation, for an image is not agreed.</p> |
