US4113347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for directional radiation of light in symbol-indicator systems
Assignee: Siemens AG
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Filing: 1977-03-28
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Granted: 1978-09-12
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Expires: 1997-03-28
Abstract
Abstract An arrangement for directional radiation of light in symbol-indicator systems which are to be effective over fairly large distances, with the symbols being formed by dots of a dot matrix which receive light from respective light conductor bundles, particularly for utilization as additional indicators in the railroad signalling field, in which each matrix dot is provided with a lens arrangement comprising two horizontally adjacent lenses having their plane surfaces facing the illuminating light conductors with the two lenses being cooperatively disposed to reproduce two horizontally adjacent partially superimposed light sources in the plane of observation. In the preferred embodiment, the lens structures are of plano-convex configuration, the convex surfaces of which intersect with the spacing between the respective lens axis corresponding approximately to half the lens diameter, and with each lens arrangement being integrally formed with the indicator board or individually formed and adapted to be mounted in respective recesses in a separate indicator board.
Inventors
- 👤 Waldemar Gaertner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298; G09; G09F; G09F9/00; G09F9/30; G09F9/305
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
In an arrangement for the directional radiation of light, in symbol-indicator systems which are to be effective over comparatively great distances, with the symbols being formed by dots of a dot matrix, at which the ends of respective light-conductor-bundles terminate, and the opposite conductor ends of which may be illuminated by light sources, particularly for utilization as supplemental indicators in the railroad signalling field, the combination of a lens arrangement for each matrix dot, each of which comprises two horizontally adjacent lenses, each of which has a plane surface and a curved surface, with their plane surfaces facing the associated light conductor, and with the lenses of such lens arrangement being cooperably disposed to reproduce two horizontally adjacent partially superimposed light sources in the plane of observation.
Claim 2
Dependent Claim
127 words
In an arrangement for the directional radiation of light, in symbol-indicator systems which are to be effective over comparatively great distances, with the symbols being formed by dots of a dot matrix, at which the ends of respective light-conductor-bundles terminate, and the opposite conductor ends of which may be illuminated by light sources, particularly for utilization as supplemental indicators in the railroad signalling field, the combination of a lens arrangement for each matrix dot, each of which comprises two horizontally adjacent lenses, each of which has a plane surface and a curved surface, with their plane surfaces facing the associated light conductor, and with the lenses of such lens arrangement being cooperably disposed to reproduce two horizontally adjacent partially superimposed light sources in the plane of observation.
Claim 3
Dependent Claim
39 words
An arrangement according to claim 1, wherein said lenses are each of plano-convex configuration, the convex surfaces of which intersect, with the horizontal spacing between the lens axes of each lens arrangement corresponding to approximately half the lens diameter.
Claim 4
Dependent Claim
31 words
An arrangement according to claim 1, wherein each lens arrangement comprises an individually formed part which can be mounted in a corresponding recess of an indicator board of the indicator system.
Claim 5
Dependent Claim
31 words
An arrangement according to claim 2, wherein each lens arrangement comprises an individually formed part which can be mounted in a corresponding recess of an indicator board of the indicator system.
Claim 6
Dependent Claim
28 words
An arrangement according to claim 1, wherein the lens arrangement for each raster dot is formed as an integral component of an indicator board of the indicator system.
Claim 7
Dependent Claim
28 words
An arrangement according to claim 2, wherein the lens arrangement for each raster dot is formed as an integral component of an indicator board of the indicator system.
Claim 8
Dependent Claim
27 words
An arrangement according to claim 1, wherein each lens arrangement is provided, at the light receiving side thereof, with a recess for the associated cooperable light conductor.
Claim 9
Dependent Claim
27 words
An arrangment according to claim 4, wherein each lens arrangement is provided, at the light receiving side thereof, with a recess for the associated cooperable light conductor.
Claim 10
Dependent Claim
27 words
An arrangement according to claim 6, wherein each lens arrangement is provided, at the light receiving side thereof, with a recess for the associated cooperable light conductor.
References Cited (Backward Citations)
US3649098A
Cited
US3853395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |