US3924937A
Expired / Lapsed
US
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Method and apparatus for sequentially combining pulsed beams of radiation
Assignee: Jersey Nuclear Avco Isotopes Inc
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Filing: 1974-01-30
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Granted: 1975-12-09
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Expires: 1994-01-30
Abstract
Abstract Method and apparatus for combining a sequence of radiation pulses in plural beams to provide a common axis output beam of increased repetition rate. An optical correction system is employed to compensate for dynamic angular motion of the output radiation beam over the duration of each pulse.
Inventors
- 👤 James L Munroe
- 👤 Paul Gregory Debaryshe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:46
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/14; G02B27/143; B; B01; B01D; B01D59/00; B01D59/34; G02B26/00; G02B26/08; G02B26/0816; G02B27/147; G02B27/64; G02B27/642; H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1123; H01S3/121; H01S3/23; H01S3/2383; H01S3/005; H01S3/0071
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
107 words
A system for combining beams of pulsed radiation comprising: a plurality of pulsed radiation sources for providing spacially separate beams of radiation pulses in a sequence; said radiation pulses having a finite time duration; means for receiving the sequence of spacially separate beams of radiation pulses to direct said separate beams of radiation pulses along a generally common path; said means for receiving said sequence of beams of radiation pulses to direct them along a generally common path being operative to direct the pulsed beams along said common path substantially without dynamic angular variation in the pulsed radiation beams throughout the finite duration of each rotation pulse.
Claim 2
Independent Claim
107 words
A system for combining beams of pulsed radiation comprising: a plurality of pulsed radiation sources for providing spacially separate beams of radiation pulses in a sequence; said radiation pulses having a finite time duration; means for receiving the sequence of spacially separate beams of radiation pulses to direct said separate beams of radiation pulses along a generally common path; said means for receiving said sequence of beams of radiation pulses to direct them along a generally common path being operative to direct the pulsed beams along said common path substantially without dynamic angular variation in the pulsed radiation beams throughout the finite duration of each rotation pulse.
Claim 3
Dependent Claim
54 words
The combining system of claim 1 wherein: said beams of the sequence of pulsed radiation are distributed about an axis; and said means for receiving said beams to direct them along said common path includes a plurality of reflecting surfaces with at least one of said reflecting surfaces included generally in said common path.
Claim 4
Dependent Claim
21 words
The system of claim 2 wherein means are provided for rotating said plurality of reflecting surfaces generally about said common path.
Claim 5
Dependent Claim
99 words
The system of claim 2 wherein: said plurality of reflecting surfaces comprise first and second reflecting surfaces in general facing relationship; and means are provided for rotating said first and second reflecting surfaces in said generally facing relationship about an axis; said axis passing through said second reflecting surface; said rotating means including means for positioning said first reflecting surface in the path of each beam of pulsed radiation during the pulse of radiation in that beam; said first reflecting surface being oriented to reflect that beam toward said second reflecting surface for further reflection onto said common path.
Claim 6
Dependent Claim
21 words
The system for combining beams of pulsed radiation of claim 4 wherein said first and second reflecting surfaces are parallel planes.
Claim 7
Dependent Claim
44 words
The system for combining beams of pulsed radiation of claim 4 wherein: the distribution of the plural beams of radiation pulses is conical about said axis; and said first and second reflecting surfaces are in planes inclined to each other at a predetermined angle.
Claim 8
Dependent Claim
19 words
The system for combining beams of pulsed radiation of claim 1 wherein said plurality of sources comprises pulsed lasers.
Claim 9
Dependent Claim
95 words
The system for combining beams of pulsed radiation of claim 1 wherein said means for receiving the sequence of radiation pulses along spacially separate beams includes. an optical system of rotating optical elements operative to combine the sequence of spacially separate beams onto said generally common path and providing an angular variation in radiation along said common path during each pulse of radiation along the common path; and rotating optical means responsive to the pulses of radiation along the common path to substantially reduce the angular variation of the radiation pulse along said common path.
Claim 10
Dependent Claim
45 words
The system for combining beams of pulsed radiation of claim 8 wherein: the angular variation in the radiation pulses along said common path include an angular deflection; and said means for reducing the angular variation includes a rotating reflecting surface for reducing the angular deflection.
Claim 11
Dependent Claim
89 words
The system for combining beams of pulsed radiation of claim 8 wherein: said angular variation in the beam of radiation pulses along said common path includes a dynamic angular deflection and a rotation from pulse to pulse in the plane of the angular deflection; and said means for reducing the angular variation includes: means responsive to radiation along said generally common path for reducing the rotation in the plane of the Angular deflection; and means for reducing the angular deflection in the pulses of radiation along said common path.
Claim 12
Dependent Claim
87 words
The system for combining beams of pulsed radiation of claim 10 wherein: said means for reducing rotation of the plane of angular deflection includes an optical system having an odd number of reflecting surfaces in the path of the radiation pulses along said common path, said optical system with an odd number of reflecting surfaces rotating with a first characteristic; and said means for reducing angular deflection includes at least one reflecting surface rotating with a second characteristic in the path of radiation along said common path.
Claim 13
Dependent Claim
28 words
The system for combining beams of pulsed radiation of claim 1 further including means for separating material having differing absorption lines responsive to radiation along said common path.
Claim 14
Dependent Claim
85 words
In a system of the type having a plurality of pulsed radiation sources which are activated to provide a sequence of spacially separated radiation pulses from the plurality of sources in rotation and having means for directing the sequence of spacially separate pulses onto a generally common path with a dynamic angular variation occurring in the beam of each directed pulse, a system comprising: means for reducing the angular variation in each directed pulse to provide a generally nonangularly varying beam of directed radiation pulses.
Claim 15
Dependent Claim
85 words
In a system of the type having a plurality of pulsed radiation sources which are activated to provide a sequence of spacially separated radiation pulses from the plurality of sources in rotation and having means for directing the sequence of spacially separate pulses onto a generally common path with a dynamic angular variation occurring in the beam of each directed pulse, a system comprising: means for reducing the angular variation in each directed pulse to provide a generally nonangularly varying beam of directed radiation pulses.
Claim 16
Independent Claim
75 words
A system for combining pulsed radiation comprising: a plurality of pulsed radiation sources sequentially activated for providing radiation pulses; means responsive to the sequence of pulsed radiation from said plurality of sources for directing the consecutive radiation pulses from said plural sources along a generally common path; and means operative in association with said directing means for reducing the dynamic angular variation of the radiation along said generally common path during each pulse of radiation.
Claim 17
Independent Claim
75 words
A system for combining pulsed radiation comprising: a plurality of pulsed radiation sources sequentially activated for providing radiation pulses; means responsive to the sequence of pulsed radiation from said plurality of sources for directing the consecutive radiation pulses from said plural sources along a generally common path; and means operative in association with said directing means for reducing the dynamic angular variation of the radiation along said generally common path during each pulse of radiation.
Claim 18
Dependent Claim
34 words
The system for combining pulse radiation of claim 14 wherein said directing means includes an inclined rotating reflecting surface operative to receive each radiation pulse from an array of said plurality of radiation sources.
Claim 19
Dependent Claim
41 words
The system for combining pulsed radiation of claim 15 further including a corotating optical system positioned along said generally common path, said corotating optical system having an odd number of reflecting surfaces for the pulses of radiation along said common path.
Claim 20
Dependent Claim
14 words
The system of claim 16 wherein said corotating optical system includes a ''''K'''' mirror.
Claim 21
Dependent Claim
18 words
The system for combining pulsed radiation of claim 16 wherein said corotating optical system includes a ''''dove'''' prism.
Claim 22
Dependent Claim
18 words
The system for combining pulsed radiation of claim 16 wherein said corotating optical system includes a ''''reversion'''' prism.
Claim 23
Dependent Claim
29 words
The system for combining pulsed radiation of claim 16 wherein the rate of corotation of said optical system is at one-half the rate of rotation of said reflecting surface.
Claim 24
Dependent Claim
48 words
The system for combining pulsed radiation of claim 14 wherein said means for reducing angular variation includes a counterrotating reflector operative to receive the pulses of radiation along said common path and to provide a predetermined angular reflection of said pulses of radiation to reduce said angular variation.
Claim 25
Dependent Claim
21 words
The system for combining pulsed radiation of claim 21 wherein the angle of reflection of said reflector is a right angle.
Claim 26
Dependent Claim
23 words
The system for combining pulsed radiation of claim 21 wherein said counterrotation is at one-half the rate of rotation of said reflecting surface.
Claim 27
Dependent Claim
54 words
The system for combining pulsed radiation of claim 14 wherein said directing means includes a plurality of mirrors positioned for rotation about a common axis and angularly spaced about said axis, said plurality of pulsed radiation sources being arranged to direct the pulses of radiation toward a corresponding one of said plurality of mirrors.
Claim 28
Dependent Claim
28 words
The system for combining pulSed radiation of claim 24 wherein said reducing means includes counterrotating one or more reflective surfaces responsive to the radiation along said common path.
Claim 29
Dependent Claim
102 words
The system for combining pulsed radiation of claim 14 wherein: said plurality of pulsed radiation sources are radially arrayed lasers; reflective means are provided to receive radiation from the radial array of lasers to direct the radiation thereof along a plurality of paths displaced about the line of said common path; and multiple reflective means are provided with a first reflector rotated about said common path to receive incident radiation from each of said plurality of paths and reflect it toward a second reflector thereof also rotating about said common path to redirect said pulses of laser radiation onto said common path.
Claim 30
Dependent Claim
30 words
The system for combining pulsed radiation of claim 26 wherein the radiation reflected by said second reflector is directed along the same axis for each of said plurality of paths.
Claim 31
Dependent Claim
18 words
The system for combining pulsed radiation of claim 26 wherein said first and second reflectors are generally parallel.
Claim 32
Dependent Claim
21 words
The system for combining pulsed radiation of claim 26 wherein said first and second reflectors have a predetermined non-zero, included angle.
Claim 33
Dependent Claim
37 words
The system for combining pulsed radiation of claim 14 further including means responsive to the radiation along said common path for correcting for displacements of each pulse of radiation in the combined output along said common path.
Claim 34
Dependent Claim
15 words
The system for combining pulsed radiation of claim 14 wherein said radiation sources are lasers.
Claim 35
Dependent Claim
27 words
The system for combining pulsed radiation of claim 14 further including means for separating materials of different absorption lines responsive to the radiation along said common path.
Claim 36
Independent Claim
153 words
A system for combining beams of pulsed radiation comprising: plural pulsed radiation sources providing a plurality of respective spacially separated beams of pulsed radiation in a predetermined sequence; an optical system for receiving and directing said beams onto a common output path substantially without variation in the beam angle of output radiation along said common output, said optical system including: at least one first reflecting surface for receiving input radiation from said radiation sources and at least one second reflecting surface for providing output radiation along said common path; means for producing continuous rotation of said at least one first and second reflecting surfaces; and means for controlling the rotation of said first reflecting surface to receive each pulse of radiation in the sequence of spacially separate beams for direction through said optical system to said at least one reflecting surface for reflection by said second reflecting surface onto said common output path.
Claim 37
Independent Claim
153 words
A system for combining beams of pulsed radiation comprising: plural pulsed radiation sources providing a plurality of respective spacially separated beams of pulsed radiation in a predetermined sequence; an optical system for receiving and directing said beams onto a common output path substantially without variation in the beam angle of output radiation along said common output, said optical system including: at least one first reflecting surface for receiving input radiation from said radiation sources and at least one second reflecting surface for providing output radiation along said common path; means for producing continuous rotation of said at least one first and second reflecting surfaces; and means for controlling the rotation of said first reflecting surface to receive each pulse of radiation in the sequence of spacially separate beams for direction through said optical system to said at least one reflecting surface for reflection by said second reflecting surface onto said common output path.
Claim 38
Dependent Claim
78 words
A system for combining a plurality of beams of pulsed radiations to provide an augmented pulse rate comprising: a plurality of systems according to claim 1 for providing a plurality of combined outputs about corresponding common paths, the plural outputs along said plural common paths being sequenced according to a predetermined scheme; and means responsive to the combined laser radiation pulses along said plural common paths for sequentially directing the corresponding radiation pulses along a single common path.
Claim 39
Independent Claim
94 words
A system for combining the pulsed radiation outputs of a plurality of high repetition rate pulsed radiation sources to provide a common output of increased repetition rate comprising: a plurality of high pulse repetition rate radiation sources; decombining means for sequentially applying radiation pulses from said plurality of sources along a plurality of separate radiation paths for each source; and combining means responsive to the radiation along said separate radiation paths for combining the sequenced pulses of radiation along said separate radiation paths into a single common path of high repetitIon rate radiation pulses.
Claim 40
Independent Claim
94 words
A system for combining the pulsed radiation outputs of a plurality of high repetition rate pulsed radiation sources to provide a common output of increased repetition rate comprising: a plurality of high pulse repetition rate radiation sources; decombining means for sequentially applying radiation pulses from said plurality of sources along a plurality of separate radiation paths for each source; and combining means responsive to the radiation along said separate radiation paths for combining the sequenced pulses of radiation along said separate radiation paths into a single common path of high repetitIon rate radiation pulses.
Claim 41
Independent Claim
216 words
A system for combining the pulsed radiation output of a plurality of pulsed laser radiation sources to provide a single path output of high repetition rate laser radiation comprising: a plurality of laser radiation sources; means for sequentially activating said plurality of radiation sources to provide a sequence of radiation pulses from said plurality of sources in rotation; a rotating reflecting means synchronized with the sequence of laser pulses to receive each radiation pulse from a corresponding laser and reflect it along a generally common path; a reflecting system having an odd number of reflecting surfaces in the path of incident radiation and positioned to receive the output from said reflecting means along said common path; means for rotating said reflecting system about said common path in a direction counter to the direction of rotation of said reflecting means and at one-half the rate thereof; an array of a plurality of reflecting surfaces; means for rotating said array generally synchronously with said reflecting system so as to sequentially present each of said plurality of reflecting surfaces to corresponding radiation from said reflecting system for each sequential pulse of laser radiation; the reflecting surfaces of said array being angled to reflect radiation from said reflecting system onto a further common path having compensation for radiation angular variation.
Claim 42
Independent Claim
216 words
A system for combining the pulsed radiation output of a plurality of pulsed laser radiation sources to provide a single path output of high repetition rate laser radiation comprising: a plurality of laser radiation sources; means for sequentially activating said plurality of radiation sources to provide a sequence of radiation pulses from said plurality of sources in rotation; a rotating reflecting means synchronized with the sequence of laser pulses to receive each radiation pulse from a corresponding laser and reflect it along a generally common path; a reflecting system having an odd number of reflecting surfaces in the path of incident radiation and positioned to receive the output from said reflecting means along said common path; means for rotating said reflecting system about said common path in a direction counter to the direction of rotation of said reflecting means and at one-half the rate thereof; an array of a plurality of reflecting surfaces; means for rotating said array generally synchronously with said reflecting system so as to sequentially present each of said plurality of reflecting surfaces to corresponding radiation from said reflecting system for each sequential pulse of laser radiation; the reflecting surfaces of said array being angled to reflect radiation from said reflecting system onto a further common path having compensation for radiation angular variation.
Claim 43
Independent Claim
170 words
A system for combining the pulsed radiation output of a plurality of pulsed laser radiation sources to provide a common output path with augmented pulse repetition rate comprising: a plurality of pulsed laser radiation sources generally arranged about an axis to direct the radiation thereof towards said axis; a reflector array having a plurality of reflecting surfaces about said axis each arrayed to receive radiation from a corresponding laser source and to redirect it symmetrically about said common axis at generally equal radial distances therefrom; further, first and second, reflecting surfaces arranged in a facing relationship; means for rotating the arrangement of said first and second reflecting surfaces about an axis passing through the first of said first and second reflecting surfaces; means for controlling the rotation of the first and second reflecting surfaces about said axis to position said second reflecting surface to receive each pulse of laser radiation from said reflector array and direct it toward said first reflecting surface for redirection thereby along said common output path.
Claim 44
Independent Claim
170 words
A system for combining the pulsed radiation output of a plurality of pulsed laser radiation sources to provide a common output path with augmented pulse repetition rate comprising: a plurality of pulsed laser radiation sources generally arranged about an axis to direct the radiation thereof towards said axis; a reflector array having a plurality of reflecting surfaces about said axis each arrayed to receive radiation from a corresponding laser source and to redirect it symmetrically about said common axis at generally equal radial distances therefrom; further, first and second, reflecting surfaces arranged in a facing relationship; means for rotating the arrangement of said first and second reflecting surfaces about an axis passing through the first of said first and second reflecting surfaces; means for controlling the rotation of the first and second reflecting surfaces about said axis to position said second reflecting surface to receive each pulse of laser radiation from said reflector array and direct it toward said first reflecting surface for redirection thereby along said common output path.
Claim 45
Dependent Claim
27 words
The system of claim 1 further including means responsive to radiation along said common path for reducing beam displacement in the radiation along said generally common path.
Claim 46
Dependent Claim
14 words
The system of claim 16 wherein said corotating optical system includes a Pechan prism.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |