Method for exposing photoconductive materials with a mercury-thallium vapor light source
Abstract
Abstract EXPOSURE OF THE CONVENTIONAL DYE SENSITIZED ZINC OXIDE RESIN BINDER COPY MATERIAL, ORGANIC PHOTOCONDUCTORS AND SELENIUM IS ACCOMPLISHED WITH A RADIATION SOURCE THAT EMITS A HIGH LEVEL OF ENERGY AT 535 NANOMETERS. THE PHOTOELECTROSTATIC COPYING METHOD INVOLVES ILLUMINATING THE ORIGINAL TO BE REPRODUCED WITH A MERCURY-VAPOR TYPE LAMP WHICH HAS BEEN MODIFIED TO INCLUDE THALLIUM VAPORS THROUGH THE INTRODUCTION OF THALLIUM HALIDE INTO THE LAMP ENVELOPE. A HIGH INTENSITY GREEN LIGHT IS EMITTED WHICH PERFORMS AS A MONOCHROMATIC ENERGY SOURCE AND FINDS PARTICULAR APPLICATION WHEN REPRODUCING ORIGINALS HAVING MORE THAN ONE COLOR INDICIA THEREON SO THAT ALL COLORS ARE REPRODUCED IN ACCORDANCE WITH THEIR RELATIVE BRIGHTNESS ON THE ORIGINAL.
Inventors
- 👤 Robert L Gunto
- 👤 Merton R Staley
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |