Photodrawing head with symbols for exposing to light a photosensitive drawing surface
Abstract
Abstract A PHOTOGRAPHIC DRAWING SYSTEM INCLUDES A PHOTOSENSITIVE DRAWING SURFACE, PROJECTOR MEANS FOR PROJECTING SYMBOLS INTO THE SURFACE, AND MEANS FOR MOVING THE PROJECTED SYMBOLS AND THE SURFACE RELATIVE TO EACH OTHER. THE PROJECTOR MEANS INCLUDE A PLURALITY OF LIGHT CONDUCTING FIBERS SERVING AS AN OPTICAL CONNECTOR MEANS, A FIRST PROJECTOR DEVICE FOR PROJECTING LIGHT ONTO THE INPUTS OF ALL OF THE LIGHT FIBERS, A SECOND PROJECTOR DEVICE FOR RECEIVING LIGHT FROM THE OUTPUTS OF ALL OF THE OPTICAL FIBERS AND FOR UTILIZING THE LIGHT TO PROJECT THE SYMBOLS ONTO THE DRAWING SURFACE, AND MEANS FOR CONTROLLING THE NUMBER OF OPTICAL FIBERS THROUGH WHICH LIGHT WILL BE PASSED IN ORDER TO THEREBY CONTROL THE INTENSITY OF LIGHT PROJECTED ONTO THE DRAWING SURFACE.
Inventors
- 👤 Wolfgang Pabst
- 👤 Peter Brembs
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |