Patent JPS5333592A successfully refreshed from Google Patents.
Patent US3941459A successfully refreshed from Google Patents.
US3941459A
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Catoptric lens arrangement
Assignee: Raytheon Co
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Filing: 1975-02-24
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Granted: 1976-03-02
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Expires: 1995-02-24
Abstract
Abstract Improved catoptric lens arrangements to form beams from the energy emitted by extended sources of wave propagated energy are disclosed. All embodiments utilize at least a pair of mirrors disposed along a common axis, one of such mirrors being convex and the other concave, the generatrices of the reflecting surfaces of such mirrors being curves with coincident focal points, such generatrices being always divergent. At least one source of wave propagated energy is disposed between such reflecting surfaces so that all of the wave propagated energy from such a source is reflected back and forth between the mirrors in passing to an exit aperture defined by the mirrors.
Inventors
- 👤 Philip J. McFarland
- 👤 Werner R. Rambauske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:42
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/0091; G; G02; G02B; G02B17/00; G02B17/02; G02B5/00; G02B5/08; G02B5/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A beam forming arrangement for forming a beam of wave propagated energy from the energy emitted by a source thereof, such arrangement comprising: a. at least a pair of mirrors having a common focal curve disposed around an axis of symmetry, one of such mirrors having a concave reflecting surface and the other having a convex reflecting surface to define a divergent channel for wave propagated energy, one of such mirrors being interposed between such channel and the common focal curve of such mirrors; and b. a source of wave propagated energy disposed between the confocal mirrors and within the divergent channel adjacent to the narrowest part thereof.
Claim 2
Dependent Claim
108 words
A beam forming arrangement for forming a beam of wave propagated energy from the energy emitted by a source thereof, such arrangement comprising: a. at least a pair of mirrors having a common focal curve disposed around an axis of symmetry, one of such mirrors having a concave reflecting surface and the other having a convex reflecting surface to define a divergent channel for wave propagated energy, one of such mirrors being interposed between such channel and the common focal curve of such mirrors; and b. a source of wave propagated energy disposed between the confocal mirrors and within the divergent channel adjacent to the narrowest part thereof.
Claim 3
Dependent Claim
34 words
A beam forming arrangement as in claim 1 wherein the cross-sectional shapes of the reflecting surfaces of each one of the pair of mirrors are segments of confocal parabolas having a common principal axis.
Claim 4
Dependent Claim
23 words
A beam forming arrangement as in claim 2 wherein the principal axis of the confocal parabolas is parallel to the axis of symmetry.
Claim 5
Dependent Claim
25 words
A beam forming apparatus as in claim 3 wherein the principal axis of the confocal parabolas is inclined with respect to the axis of symmetry.
Claim 6
Dependent Claim
15 words
A beam forming arrangement as in claim 3 wherein the lengths of the mirrors vary.
Claim 7
Dependent Claim
20 words
A beam forming arrangement as in claim 1 wherein the reflecting surfaces of the mirrors are segments of confocal hyperbolas.
Claim 8
Dependent Claim
23 words
A beam forming arrangement as in claim 6 wherein the principal axis of the confocal hyperbolas is parallel to the axis of symmetry.
Claim 9
Dependent Claim
25 words
A beam forming apparatus as in claim 6 wherein the principal axis of the confocal hyperbolas is inclined with respect to the axis of symmetry.
Claim 10
Dependent Claim
16 words
A beam forming arrangement as in claim 6 wherein the lengths of the confocal mirrors vary.
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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |