US3710098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigation lights
Assignee: LASER ELECTRONICS Pty
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Filing: 1971-05-24
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Granted: 1973-01-09
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Expires: 1991-05-24
Abstract
Abstract A swept-beam visual light assembly includes a laser light source, a beam collimator, and beam-sweeping means in which the beam width and rate of sweep are such as to give a light flash of duration more than 100 microseconds and beam power at maximum range not less than 4 X 10 9 watts per square centimeter. The laser is preferably stationary and the collimator and beamsweeping means rotate together.
Inventors
- 👤 N Walden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:34
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/005; B; B63; B63B; B63B51/00; B63B51/02; F; F21; F21W; F21W2111/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
A swept-beam visual light assembly comprising: a. a housing having a vertical aperture extending therethrough, b. means for rotating said housing about the axis of said aperture, c. a fixed laser light source mounted exteriorly of said housing and projecting a light beam axially through said aperture, d. an oblique planer mirror mounted on said housing for rotation therewith above said aperture, e. a beam-expanding divergent lens, a cylindrical fan lens and a collimating lens all mounted on said housing within said aperture and rotatable with said housing, and f. means for adjusting said fan lens and said collimating lens axially of said aperture.
Claim 2
Dependent Claim
104 words
A swept-beam visual light assembly comprising: a. a housing having a vertical aperture extending therethrough, b. means for rotating said housing about the axis of said aperture, c. a fixed laser light source mounted exteriorly of said housing and projecting a light beam axially through said aperture, d. an oblique planer mirror mounted on said housing for rotation therewith above said aperture, e. a beam-expanding divergent lens, a cylindrical fan lens and a collimating lens all mounted on said housing within said aperture and rotatable with said housing, and f. means for adjusting said fan lens and said collimating lens axially of said aperture.
Claim 3
Dependent Claim
15 words
The assembly of claim 1, further including means for adjusting the inclination of said mirror.
Claim 4
Dependent Claim
18 words
The assembly of claim 1, in which said beam is of elliptical cross section, with major axis vertical.
Claim 5
Dependent Claim
21 words
The assembly of claim 1, in which said fan lens is interposed coaxially between said beam-expanding lens and said collimator lens.
References Cited (Backward Citations)
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Cited
US2748371A
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US3139604A
Cited
US3205478A
Cited
US3266014A
Cited
US3363092A
Cited
US3542452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |