| 摘要 |
PURPOSE:To make it possible to accomplish the efficient collimation easily in the field in accordance with the chromatic discrimination by inserting green and red optical filters in the midway of the passages for the incident parallel beam and the reflected beam. CONSTITUTION:The present invention relates to a collimating device for an optical system to be carried on a rocket. The parallel incident beam 2 from its source 1 is divided into bundles 4 and 5 of light by a beam splitter 3. The light bundle 4 passes through a stop diaphragm 6 and a green filter 7 and is reflected by a plane reflecting mirror 8 into a light bundle 9. The light bundle 5 passes through a red filter 10 and is reflected by the reference plane reflecting mirror 12 of an optical system 11 to be collimated. If accurate collimation is not performed, the bundle 5 is turned into a light bundle 13, which is reflected by the beam splitter into a light bundle 14. Observation is made with the use of a telescope or theodlite 15 having cross hairs so that the collimation can be accomplished from the position of the image G of the incident parallel beam and the image R of the reflected light bundles. |
