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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chengjun Julian Chen0
Date of Patent
April 20, 2010
0Patent Application Number
118405000
Date Filed
August 17, 2007
0Patent Primary Examiner
Patent abstract
The most accurate method of finding the true north is through astronomical observations, for example, by observing the position of the sun. However, the procedure is complicated. The instantaneous position of the sun must be calculated from astronomical data for each instance of observation, and the operator must wait for the predetermined time to come. Elaborate manual adjustments are required. The present invention discloses an automatic solar compass comprising a cylindrical omni-directional lens, a detection means, and a servomechanism. It is as easy to use as the magnetic compass, but much more accurate and reliable than the magnetic compass.
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