Patent US4769303A successfully refreshed from Google Patents.
Patent US4663698A successfully refreshed from Google Patents.
US4663698A
Expired / Lapsed
US
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Apparatus for directing a beam of light
Assignee: Wynne Willson Gottelier Ltd
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Filing: 1986-03-06
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Granted: 1987-05-05
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Expires: 2006-03-06
Abstract
Abstract An optical system directs the output beam of a light source along a first axis fixed relative to a first support carrying the light source. A second support mounted on the first support is rotated by a first motor about the first axis. A first reflector on the second support is oblique to and always intersected by the first axis. A third support mounted on the second support is rotated by a second motor about a second axis coincident with the reflection of the first axis in the first reflector. A second reflector on the third support is oblique to and always intersected by the second axis. By appropriate energization of the motors the light beam can be reflected in any direction.
Inventors
- 👤 Ernest V. Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:50
CPC Classifications
F; F21; F21V; F21V7/00; F21S; F21S10/00; F21S10/06; F21V21/00; F21V21/14; F21V21/30; G; G02; G02B; G02B26/00; G02B26/08; G02B26/0816
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
Apparatus for directing a beam of light in any direction, comprising a first support, a light source mounted on the first support, an optical system arranged to direct the output beam of the light source along a first axis fixed in relation to the first support, a second support mounted on the first support for rotation substantially about the first axis, a first motor for rotating the second support about the first axis, a first reflector mounted on the second support so that the first axis passes through it in all angular positions of the second support about the first axis, the first reflector being oblique to the first axis, a third support mounted on the second support for rotation substantially about a second axis which coincides with the reflection of the first axis in the first reflector, a second motor for rotating the third support about the second axis, and a second reflector mounted on the third support so that the second axis passes through it in all angular positions of the third support about the second axis, the second reflector being oblique to the second axis.
Claim 2
Dependent Claim
188 words
Apparatus for directing a beam of light in any direction, comprising a first support, a light source mounted on the first support, an optical system arranged to direct the output beam of the light source along a first axis fixed in relation to the first support, a second support mounted on the first support for rotation substantially about the first axis, a first motor for rotating the second support about the first axis, a first reflector mounted on the second support so that the first axis passes through it in all angular positions of the second support about the first axis, the first reflector being oblique to the first axis, a third support mounted on the second support for rotation substantially about a second axis which coincides with the reflection of the first axis in the first reflector, a second motor for rotating the third support about the second axis, and a second reflector mounted on the third support so that the second axis passes through it in all angular positions of the third support about the second axis, the second reflector being oblique to the second axis.
Claim 3
Dependent Claim
21 words
Apparatus as claimed in claim 1, in which the first mirror is at 45° to planes orthogonal to the first axis.
Claim 4
Dependent Claim
21 words
Apparatus as claimed in claim 1, in which the second mirror is at 45° to planes orthogonal to the second axis.
Claim 5
Dependent Claim
35 words
Apparatus as claimed in claim 1, in which the first mirror is at 45° to planes orthogonal to the first axis and the second mirror is at 45° to planes orthogonal to the second axis.
Claim 6
Dependent Claim
40 words
Apparatus as claimed in claim 1, in which the second support has a tubular portion rotatably mounted on the first support, and the first motor is carried by the first support and is kinematically connected to the said tubular portion.
Claim 7
Dependent Claim
43 words
Apparatus as claimed in claim 1, in which the third support has a tubular portion rotatably mounted on the second support, and the second motor is carried by the second support and is kinematically connected to the tubular portion of the third support.
Claim 8
Dependent Claim
21 words
Apparatus as claimed in claim 1, in which at least one of the supports is in the form of a housing.
Claim 9
Dependent Claim
17 words
Apparatus as claimed in claim 1, in which at least one of the reflectors is a mirror.
Claim 10
Dependent Claim
12 words
Apparatus as claimed in claim 8, in which the mirror is plane.
Claim 11
Dependent Claim
14 words
Apparatus as claimed in claim 1, in which the first axis is substantially vertical.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |