GB1559063A - Traffic signal indicator with glare and reflection control - Google Patents
Traffic signal indicator with glare and reflection control Download PDFInfo
- Publication number
- GB1559063A GB1559063A GB203/78A GB20378A GB1559063A GB 1559063 A GB1559063 A GB 1559063A GB 203/78 A GB203/78 A GB 203/78A GB 20378 A GB20378 A GB 20378A GB 1559063 A GB1559063 A GB 1559063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- display
- sight
- viewing
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000004313 glare Effects 0.000 title claims description 8
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/26—Windows; Cover glasses; Sealings therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
- G04C17/02—Indicating the time optically by electric means by electric lamps
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B11/00—Indicating elements; Illumination thereof
Description
(54) TRAFFIC SIGNAL INDICATOR WITH GLARE AND
REFLECTION CONTROL (71) We, DIGICOURSE INC., a corporation organised and existing under the laws of -the
State of Louisiana, United States of
America, of Laitram Lane (P.O. Box 50699), New Orleans, State of Louisiana 70150, United States of America, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- The present invention is concerned with providing glare and reflection control in traffic signal indicators.
Accordingly, there is provided a traffic signal indicator with glare and reflection control comprising a housing and an indi- cator display located in the housing.
the housing having a viewing opening
therein to permit the indicator display to
be viewed along a viewing line of sight
within a viewing sector and a non-reflec
tive interposing surface positioned sub
stantially parallel to said line of sight in
front of the display, and the display in
cluding a transparent specular surface
within the housing in the field of view
along said line of sight and disposed at an angle of less than 90" to the line of
sight such as to direct specular reflections of ambient light entering the housing from
the viewing sector in a direction away
from the viewing sector and into the inter
posing surface, and a lamp positioned be
hind the specular surface along the line
of sight for illuminating the display.
An example of the invention will now be described with reference to the accompanying drawing which shows a traffic signal indicator constructed in accordance with the present invention.
Referring to the drawing, a traffic light signal indicator is shown having a housing lOE with front viewing openings 11E which allow indicator displays located inside the housing lOE to be viewed along a viewing line of sight LOS. The LOS is in a viewing sector from which the displays can be viewed. Each display has a transparent specular surface 22E within the housing in the field of view and positioned at an angle of the order of 25 to 80" to the front plane of the housing. The surfaces 22E are thus at an angle of less than 90 to the LOS.
In the particular example the surfaces are at about 40 to the front plane. Lights or lamps 15E are provided behind surface 22E for illuminating the indicator displays as required in the usual way.
The housing lOE has non-reflecting inter posing surfaces 14E. As can clearly be seen in the drawing, for each display, the sur- face 14E extends from the top of the open ing 11E inside the housing 10E to the surface 22E, and also extends outside the front plane of the housing as a hood. The sur face 14E lies substantially parallel to the
LOS so it does not obstruct the view of the display.
The angle of the specular surfaces 22E is such that ambient light entering through openings 11E is reflected by the surfaces 22E onto the non-reflective surfaces 14E.
Thus the ambient light is not reflected back into the eyes of the viewer.
WHAT WE CLAIM IS:
1. A traffic signal indicator with glare and reflection control comprising a housing and an indicator display located in the housing,
the housing having a viewing opening
therein to permit the indicator display to
be viewed along a viewing line of sight
within a viewing sector and a non-reflec tive interposing surface positioned sub- stantially parallel to said line of sight in
front of the display, and the display in
cluding a transparent specular surface
within the housing in the field of view
along said line of sight and disposed at
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A traffic signal indicator with glare and reflection control comprising a housing and an indicator display located in the housing,
the housing having a viewing opening
therein to permit the indicator display to
be viewed along a viewing line of sight
within a viewing sector and a non-reflec tive interposing surface positioned sub- stantially parallel to said line of sight in
front of the display, and the display in
cluding a transparent specular surface
within the housing in the field of view
along said line of sight and disposed at
an angle of less than 90" to the line of
sight such as to direct specular reflections
of ambient light entering the housing
from the viewing sector in a direction
away from the viewing sector and into the
interposing surface, and a lamp posi tioned behind the specular surface along
the line of sight for illuminating the dis
play.
2. A traffic signal indicator as claimed in claim 1 wherein the interposing surface extends outside a front plane of the housing as a hood.
3. A traffic signal indicator with glare and reflection control substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77450877A | 1977-03-08 | 1977-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1559063A true GB1559063A (en) | 1980-01-16 |
Family
ID=25101466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB203/78A Expired GB1559063A (en) | 1977-03-08 | 1978-01-04 | Traffic signal indicator with glare and reflection control |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS53112096A (en) |
| AU (1) | AU3220878A (en) |
| BE (1) | BE862576R (en) |
| CA (1) | CA1081510A (en) |
| DE (1) | DE2801213A1 (en) |
| DK (1) | DK341878A (en) |
| FR (1) | FR2383431A2 (en) |
| GB (1) | GB1559063A (en) |
| IT (1) | IT1155863B (en) |
| LU (1) | LU79174A1 (en) |
| NL (1) | NL7714620A (en) |
| SE (1) | SE7802564L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE48385B1 (en) * | 1978-08-11 | 1984-12-26 | Univ California | Synthesis of a eucaryotic protein by a microorganism |
| SE413116B (en) * | 1978-12-01 | 1980-04-14 | Haeggbom Rolf | DEVICE FOR THE ELIMINATION OF GREAT REFLECTION IN A CAR SURFACE |
| DE3019311A1 (en) * | 1980-05-21 | 1981-11-26 | Vdo Adolf Schindling Ag, 6000 Frankfurt | REFLECTED ELECTROOPTICAL DISPLAY |
| FR2662274B1 (en) * | 1990-05-21 | 1992-09-04 | Garcon Thierry | DEVICE FOR IMPROVING THE CONTRAST OF A HOLOGRAPHIC IMAGE PRESENTED IN FULL LIGHT. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB661311A (en) * | 1949-05-03 | 1951-11-21 | Westinghouse Brake & Signal | Improvements relating to light signals |
| GB1084523A (en) * | 1964-11-16 | 1967-09-27 | Ferranti Ltd | Improvements relating to means for viewing a display presented on or behind a partially reflecting surface |
| US3974637A (en) * | 1975-03-28 | 1976-08-17 | Time Computer, Inc. | Light emitting diode wristwatch with angular display |
| FR2314551A1 (en) * | 1975-06-13 | 1977-01-07 | Satam | Screening hood for petrol pump illuminated price sign - has an oblique glass plate inside to deflect stray light |
-
1977
- 1977-05-19 CA CA278,831A patent/CA1081510A/en not_active Expired
- 1977-12-30 NL NL7714620A patent/NL7714620A/en not_active Application Discontinuation
- 1977-12-30 BE BE184059A patent/BE862576R/en active
-
1978
- 1978-01-04 GB GB203/78A patent/GB1559063A/en not_active Expired
- 1978-01-05 AU AU32208/78A patent/AU3220878A/en active Pending
- 1978-01-12 DE DE19782801213 patent/DE2801213A1/en not_active Withdrawn
- 1978-02-03 FR FR7803089A patent/FR2383431A2/en active Pending
- 1978-03-06 LU LU79174A patent/LU79174A1/en unknown
- 1978-03-06 IT IT48309/78A patent/IT1155863B/en active
- 1978-03-07 SE SE7802564A patent/SE7802564L/en unknown
- 1978-03-08 JP JP2647478A patent/JPS53112096A/en active Pending
- 1978-08-02 DK DK341878A patent/DK341878A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE7802564L (en) | 1978-09-09 |
| CA1081510A (en) | 1980-07-15 |
| NL7714620A (en) | 1978-09-12 |
| LU79174A1 (en) | 1978-06-28 |
| DE2801213A1 (en) | 1978-09-14 |
| BE862576R (en) | 1978-04-14 |
| IT1155863B (en) | 1987-01-28 |
| AU3220878A (en) | 1979-07-12 |
| DK341878A (en) | 1979-02-04 |
| FR2383431A2 (en) | 1978-10-06 |
| IT7848309A0 (en) | 1978-03-06 |
| JPS53112096A (en) | 1978-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |