Class / Patent application number | Description | Number of patent applications / Date published |
033285000 | Horizontal angle measurer | 6 |
20080244920 | Method and Rotating Laser for Determining an Item of Attitude Information of at Least One Object - The invention relates to both a method for determining the horizontal position of an object ( | 10-09-2008 |
20090100691 | Laser Straight Liner - The utility model relates to a kind of laser straight liner, including a foundation and a base, wherein said foundation is provided with batteries and said base is provided with at least one laser projection module. Said base and said foundation are connected in the way that is 360 degrees rotatable. One side of said foundation that faces said base is provided with the anode and cathode conduction rings that can connect batteries, and one side of said base that faces said foundation is provided with two contact pieces that can connect various laser projection modules and also can touch the anode and cathode conduction rings, thus realizing the conduction-wire-free connection between said laser projection modules and said batteries. This utility model makes said laser projection modules freely rotatable on said foundation, and thus the rotated angle during marking can be accurately controlled, ingenious and reasonable in design and convenient in operation. The lower-end transparent shell of cavity is provided with a cross scale, and the crossing point of said cross scale can be superposed with the intersection projection of the counter-extension lines of the laser beams emitted by various said laser projection modules, thus ensuring a accurate positioning. | 04-23-2009 |
20090106989 | Laser Surveying system - There are provided a rotary laser projecting device | 04-30-2009 |
20090158604 | ELECTRONIC LEVELING APPARATUS AND METHOD - An electronic leveling apparatus for optically measuring a height difference relative to a leveling staff comprises a telescope, a camera fixed to the telescope, a first actuator for rotating both said telescope and said camera in a horizontal plane about a fixed vertical axis of the apparatus, and a controller. The camera has a depth of focus that is at least twice a depth of focus of the telescope. The controller uses a first output signal from said telescope to output a leveling signal representing a detected height difference. The controller uses a second output signal from said camera to identify a representation of a leveling staff and to control the first actuator based on the identified representation of the leveling staff. Furthermore a method for optically measuring a height difference of an electronic leveling apparatus relative to a leveling staff is provided. | 06-25-2009 |
20090217538 | GAUGE FOR DETERMINING ANGLE OF SLOPED GROUND AND METHOD OF USING SAME - A gauge for determining the angle of sloped ground includes a panel, having a transparent window located in it, which can be held by a user so that the sloped ground can be viewed through the window. The panel has a spatial reference associated with it which allows the panel to be oriented properly with respect to the horizontal or vertical. Inscribed on the window are a positioning indicia and a plurality of lines which radiate outwardly from the positioning indicia at specific angles with respect to the horizontal. In use the panel is held such that the positioning indicia is located on the slope. The user can then determine which one of the lines overlies the slope. The angle associated with that line is the angle of the slope. | 09-03-2009 |
20100229409 | Surveying system - The present invention relates to a surveying system, comprising a rotary laser irradiation device | 09-16-2010 |