| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide optical space communication equipment which has an optical axis shift detection/correction function, and does not need an optical beam position detecting element for detecting an angle of an optical beam, nor an optical branching means with an optical system for collecting light, which is required for the element. <P>SOLUTION: Optical space communication equipment which is oppositely installed between remote places and performs communication with the optical beams is provided with a light reception means having a light detection part receiving the optical beam from opposite equipment and detecting a light signal, a varying means changing a direction of a reception direction of the light reception means and a shielding means which shields a part of luminous flux converged to the light detection part and time-sequentially changes a position of shielded luminous flux. <P>COPYRIGHT: (C)2004,JPO |
