Patents by Inventor Jeongdal Kim

Jeongdal Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of rapid prototyping for multifaceted and/or folded path lighting systems
    Patent number: 5995742
    Abstract: A method of rapid prototyping a lighting system which is at least one of folded path and multifaceted includes determining output power of the lighting system by calculating phase space density. A method of rapid prototyping a lighting system comprises ray tracing the lighting system, determining photometric quantities which describe the lighting system based on the ray tracing step, and providing a stereoscopic three-dimensional rendering of the lighting system based on the determining step. The three-dimensional renderings reveal any hidden pseudo-image artifacts in a lighting system before the lighting system is actually fabricated. A computer system for rapid prototyping a lighting system comprises a plurality of slave processors networked to a host processor. The slave processor and the master processor cooperate to ray trace the lighting system, and the slave processors perform homogeneous independent tasks.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: November 30, 1999
    Assignee: Physical Optics Corporation
    Inventors: Tomasz P. Jannson, Stephen A. Kupiec, Andrew Kostrzewski, Mike Rud, Indra Tengara, Anatoly Vasiliev, Jeongdal Kim