Optics: measuring and testing – Angle measuring or angular axial alignment
Patent
1996-12-11
1998-10-20
Font, Frank G.
Optics: measuring and testing
Angle measuring or angular axial alignment
G01B 1126
Patent
active
058254803
ABSTRACT:
In an observing apparatus such as a binocular or monocular for viewing an object to be observed, a target position for observation is computed on the basis of own position information, azimuth information, and distance information to the observation target; and thus computed result is displayed within a visual field, whereby the target position for observation is determined correctly and rapidly. Based on an electric wave signal from a GPS satellite (50), the own current position is detected (S1). From an azimuth detection sensor (27) and a depression and elevation angle detection sensor (29), azimuth data and depression and elevation angle data from the own current position to the sufferer direction is detected (S2). From a topographic map memory (25), topographic map information near the own position is read out (S4). This map information includes data of absolute coordinates for each position of the topographic map. Based on these kinds of data and the topographic map information, a CPU (31) retrieves the coordinates of the position which initially crosses the surface of the earth in the direction of the position of the object to be observed (S5) and displays the information concerning this target position for observation within a visual field.
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Magellan Chartmate, advertisement, 1995, Japan.
Federal Radionavigation Plan, specifications, 1994, Japan.
Font Frank G.
Fuji Photo Optical Co., Ltd.
Smith Zandra V.
Snider Ronald R.
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