US3986767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical focus device
Assignee: RTX Corp
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Filing: 1976-03-01
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Granted: 1976-10-19
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Expires: 1996-03-01
Abstract
Abstract An apparatus for focusing a beam of collimated radiation at various locations over a wide area is disclosed. The apparatus includes a focus head having an offaxis parabolic section in combination with a flat turning mirror. The head is capable of rotating the beam about two orthogonal axes and is mounted in a gantry which permits three dimensional movement of the entire head.
Inventors
- 👤 Rudolf J. Rexer
- 👤 James P. Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:00
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/0869; B23K26/0876; G; G02; G02B; G02B19/00; G02B19/0004; G02B19/0019; G02B19/0023; G02B19/0033; G02B19/0047; G02B5/00; G02B5/08; G02B5/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
218 words
Apparatus for focusing a beam of radiation which is collimated about an input axis comprising: an upper housing through which the beam is able to pass freely; a lower housing through which the beam is able to pass freely, the lower housing being connected to, and rotatable with respect to, the upper housing; a first means for rotating the lower housing with respect to the upper housing about the input axis, the first rotating means being fixedly connected to the upper housing; a side housing through which the beam is able to pass freely, the side housing being connected to, and rotatable with respect to, the lower housing; a second means for rotating the side housing with respect to the lower housing about a second axis which is orthogonal with the input axis, the second rotating means being fixedly connected to the lower housing; an off axis parabolic reflector mounted in the lower housing in a position which intersects with the input axis to focus and redirect the input beam along the second axis; means in the lower housing for rotating the parabolic reflector in the plane of the parabolic reflector; and a flat reflector mounted in the side housing in a position which intersects with the second axis to redirect the focused beam along an output axis.
Claim 2
Dependent Claim
218 words
Apparatus for focusing a beam of radiation which is collimated about an input axis comprising: an upper housing through which the beam is able to pass freely; a lower housing through which the beam is able to pass freely, the lower housing being connected to, and rotatable with respect to, the upper housing; a first means for rotating the lower housing with respect to the upper housing about the input axis, the first rotating means being fixedly connected to the upper housing; a side housing through which the beam is able to pass freely, the side housing being connected to, and rotatable with respect to, the lower housing; a second means for rotating the side housing with respect to the lower housing about a second axis which is orthogonal with the input axis, the second rotating means being fixedly connected to the lower housing; an off axis parabolic reflector mounted in the lower housing in a position which intersects with the input axis to focus and redirect the input beam along the second axis; means in the lower housing for rotating the parabolic reflector in the plane of the parabolic reflector; and a flat reflector mounted in the side housing in a position which intersects with the second axis to redirect the focused beam along an output axis.
Claim 3
Dependent Claim
32 words
The invention according to claim 1 wherein the lower housing includes: means for adjusting the orientation of the parabolic reflector with respect to the input axis for any set position of rotation.
Claim 4
Dependent Claim
16 words
The invention according to claim 2 wherein the parabolic reflector is a 90° off axis parabola.
Claim 5
Dependent Claim
20 words
The invention according to claim 3 wherein the side housing includes a conical extension which projects along the output axis.
Claim 6
Dependent Claim
17 words
The invention according to claim 4 including further means for internally cooling the parabolic and flat reflectors.
Claim 7
Dependent Claim
22 words
The invention according to claim 5 including further means for flowing a dry gas across the reflectors and out the conical extension.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |