Automatic tracking apparatus for reflector
First Claim
1. An automatic tracking apparatus for a reflector comprising:
- a surveying machine body;
an illumination portion disposed in said surveying machine body for illuminating a measurement light toward a reflector;
a light receiving portion which is disposed in said surveying machine body and which has an image sensor for receiving a reflection light image of the measurement light illuminated toward said reflector;
arithmetic means for calculating a position of the reflection light image from said reflector in an area of said image sensor; and
a rotation mechanism for rotating said surveying machine body so as to position said reflector on a light receiving optical axis of said light receiving portion based on the position obtained by said arithmetic means, wherein said light receiving portion is provided with a light receiving sensor having a smaller area than the area of said image sensor on said light receiving optical axis and also in a conjugated position with said image sensor, and said arithmetic means distinguishes said reflector based on an output of said light receiving sensor.
1 Assignment
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Accused Products
Abstract
The present invention comprises an illumination portion (11), a light receiving portion (12), disposed in the surveying machine body (8), having an image sensor (27) for receiving a reflection light image (M0) of the measurement light, arithmetic means (38) for calculating a position in an area of the image sensor (27) for the reflection light image (M0) from a reflector (2), and a rotation mechanism for rotating the surveying machine body (8) so as to position the reflector (2) on a light receiving optical axis of the light receiving portion (12) based on the position obtained by the arithmetic means (38), and the light receiving portion (12) is provided with a light receiving sensor (47) having a smaller area than the area of the image sensor (27) on the light receiving optical axis in a conjugated position with the image area (27), and the arithmetic means (38) distinguishes the reflector 2 based on an output of the light receiving sensor (47).
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Citations
5 Claims
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1. An automatic tracking apparatus for a reflector comprising:
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a surveying machine body;
an illumination portion disposed in said surveying machine body for illuminating a measurement light toward a reflector;
a light receiving portion which is disposed in said surveying machine body and which has an image sensor for receiving a reflection light image of the measurement light illuminated toward said reflector;
arithmetic means for calculating a position of the reflection light image from said reflector in an area of said image sensor; and
a rotation mechanism for rotating said surveying machine body so as to position said reflector on a light receiving optical axis of said light receiving portion based on the position obtained by said arithmetic means, wherein said light receiving portion is provided with a light receiving sensor having a smaller area than the area of said image sensor on said light receiving optical axis and also in a conjugated position with said image sensor, and said arithmetic means distinguishes said reflector based on an output of said light receiving sensor. - View Dependent Claims (2, 3, 4, 5)
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Specification