| Fourier Synthesis Lithographic Machine for Large Panel Display Fabrication |
31 JAN 95 |
52 pages |
| Authors:
Lev Sadovnik; PHYSICAL OPTICS CORP TORRANCE CA
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 | This report addresses the development of a substitute for conventional lithographic technologies used to fabricate flat panel displays. Conventional technology has several weaknesses: an image field <50 mm x 50 mm, a need for expensive projection equipment and precision stepper machines with a positioning accuracy of -0.25 microns and depth of focus of -1 micron; and the necessity to use complicated mask technologies which pollute the environment. Physical Optics Corporation ... |
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| Optically Controlled MMW Beamsteering Beamforming Antenna |
21 JUN 94 |
30 pages |
| Authors:
Lev Sadovnik; PHYSICAL OPTICS CORP TORRANCE CA
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| In this research project, Physical Optics Corporation (POC) has developed theoretical and laboratory models of semiconductor waveguides for MMW antennas. The physical model has been tested experimentally demonstrating attenuation of MMW propagation in the semiconductor waveguide. POC has also investigated coupling between semiconductor and metal waveguides. A new type of evanescent-coupling scanning antenna has been demonstrated and tested. The results of this project form the foundation for the fabrication of ... |
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| Optical Processing of MMW for Agile Beamsteering and Beamforming |
01 FEB 94 |
35 pages |
| Authors:
Lev Sadovnik; PHYSICAL OPTICS CORP TORRANCE CA RESEARCH AND DEVELOPMENT DIV
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| There is little doubt than an electronically steered, stationary scanning antenna offers significant advantages over any gimbaled installation, especially for tactical missile seekers. A scanning phased array antenna reduces the demands on space and power and makes better use of the space available. It is widely believed that the millimeter wave (MMW) band (W-band) is the region of the RF spectrum which provides the best angular resolution. In fact, MMW ... |
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| A Novel Optoelectronic System for Distortion-Invariant ATR |
01 FEB 94 |
32 pages |
| Authors:
Lev Sadovnik; PHYSICAL OPTICS CORP TORRANCE CA RESEARCH AND DEVELOPMENT DIV
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| The proposed idea is to enhance existing optical correlation based automatic target recognition (ATR) by introducing scale, translation, and rotation invariance (STRI). Previously, STRI was achieved by utilizing a library of matched filters corresponding to various positions of rotation and scale variation. We find that simple preprocessing can eliminate the need for the library since any STR changes in the input image can be nullified by bringing an input image ... |
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