Spectrometric apparatus with rotary entrance or exit gate
Abstract
Abstract A SPECTOMETER WITH MATCHING ENTRANCE AND EXIT GATES EACH DIVIDED INTO TWO MULTIPLICITIES OF ZONES OF DIFFERENT TRANSMISSIVITY FOR RADIATION TO BE ANALYZED, HAS MEANS FOR ROTATING ONE OF THE GATES ABOUT ITS AXIS TO GENERATE A RAPIDLY VARYING OUTPUT VOLTAGE WITH A FUNDAMENTAL FREQUENCY RELATED TO THE SPEED OF ROTATION WHENEVER THE RADIANT ENERGY INCLUDES FLUX OF A PREFETERMINED ADJUSTMENT WAVELENGTH, I.E. THAT WAVELENGTH WITH WHICH AN INTERPOSED PRISM OR DIFFRECTION GRATING PRODUCES AN IMAGE OF THE ENTRANCE GATE COINCIDING EXACTLY WITH THE EXIT GATE. EACH OF THESE GATES HAS A CIRCULAR AREA ANGHULARLY SUBDIVIDED INTO AN EVEN NUMBER OF IDENTICAL SECTORS AND RADIALLY SUBDIVIDED BY CONCENTRIC CIRCLES DEFINING TOGETHER WITH THE SECTOR BOUNDARIES A MULTIPLICITY OF ARCUATE ZONES, THESE ZONES BEING ALTERNATELY TRANSPARENT AND OPAQUE OR REFLECTING AND NONREFLECTING FOR THE FLUX TO BE ANALYZED. D R A W I N G
Inventors
- 👤 Paul Jean E Vermande
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |