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Redmond, WA, United States

Trademark
Basis Software Inc. | Date: 1996-10-01

computer programs and program manuals sold together as a unit used for processing the LISP computer programming language.


Trademark
Basis Software Inc. | Date: 2004-04-13

COMPUTER HARDWARE AND PERIPHERALS, NAMELY, OPTICAL AND LASER SCANNERS AND LASER SCANNERS FOR INDUSTRIAL INSPECTION, AND OPERATIONAL SOFTWARE FOR USE THEREWITH; COMPUTER PERIPHERALS, NAMELY PRINTERS, PLOTTERS, AND MONITORS FOR DISPLAYING GEOMETRIC DATA AND GRAPHICAL REPRESENTATIONS THEREOF; COMPUTER SOFTWARE FOR USE TO ACQUIRE, MANIPULATE, AND PRESENT GEOMETRIC DATA AND GRAPHICAL REPRESENTATIONS THEREOF. COMPUTER PROGRAMMING FOR OTHERS AND COMPUTER SOFTWARE DESIGN FOR OTHERS IN THE FIELD OF GEOMETRIC AND GRAPHICAL DATA ACQUISITION, MANIPULATION, AND PRESENTATION, GEOMETRIC AND GRAPHICAL DATA ACQUISITION, MANIPULATION, AND PRESENTATION; INTEGRATION OF COMPUTER HARDWARE AND SOFTWARE FOR OTHERS IN THE FIELD OF GEOMETRIC AND GRAPHICAL DATA ACQUISITION, MANIPULATION, AND PRESENTATION.


Muralikrishnan B.,U.S. National Institute of Standards and Technology | Ferrucci M.,U.S. National Institute of Standards and Technology | Sawyer D.,U.S. National Institute of Standards and Technology | Gerner G.,Pennsylvania State University | And 8 more authors.
Precision Engineering | Year: 2015

We discuss a geometric error model for those large volume laser scanners that have the laser source and a spinning prism mirror mounted on a platform that can rotate about the vertical axis. We describe the terms that constitute the model, address their effect on measured range and angles, and discuss the sensitivity of different two-face and volumetric length tests to each term in the model. We report on experiments performed using commercially available contrast targets to assess the validity of the proposed model. Geometric error models are important not only in improving the accuracy of laser scanners, but also in facilitating the identification of test procedures for performance evaluation of these instruments and therefore in the development of documentary Standards. The work described in this paper lays the foundation for such efforts. © 2014 Elsevier Inc. All rights reserved. Source


Ferrucci M.,U.S. National Institute of Standards and Technology | Muralikrishnan B.,U.S. National Institute of Standards and Technology | Sawyer D.,U.S. National Institute of Standards and Technology | Phillips S.,U.S. National Institute of Standards and Technology | And 5 more authors.
Measurement Science and Technology | Year: 2014

Large volume laser scanners are increasingly being used for a variety of dimensional metrology applications. Methods to evaluate the performance of these scanners are still under development and there are currently no documentary standards available. This paper describes the results of extensive ranging and volumetric performance tests conducted on a large volume laser scanner. The results demonstrated small but clear systematic errors that are explained in the context of a geometric error model for the instrument. The instrument was subsequently returned to the manufacturer for factory calibration. The ranging and volumetric tests were performed again and the results are compared against those obtained prior to the factory calibration. © 2014 IOP Publishing Ltd. Source

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