AU779082B2 - Flashlamp for use in photographic monitoring systems - Google Patents

Flashlamp for use in photographic monitoring systems Download PDF

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Publication number
AU779082B2
AU779082B2 AU31398/01A AU3139801A AU779082B2 AU 779082 B2 AU779082 B2 AU 779082B2 AU 31398/01 A AU31398/01 A AU 31398/01A AU 3139801 A AU3139801 A AU 3139801A AU 779082 B2 AU779082 B2 AU 779082B2
Authority
AU
Australia
Prior art keywords
traffic monitoring
traffic
photoflash lamp
monitoring installation
flashlamp
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.)
Ceased
Application number
AU31398/01A
Other versions
AU3139801A (en
Inventor
Helmut Fuchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robot Visual Systems GmbH
Original Assignee
Robot Visual Systems GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7939787&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU779082(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robot Visual Systems GmbH filed Critical Robot Visual Systems GmbH
Publication of AU3139801A publication Critical patent/AU3139801A/en
Assigned to ROBOT VISUAL SYSTEMS GMBH reassignment ROBOT VISUAL SYSTEMS GMBH Amend patent request/document other than specification (104) Assignors: ROBOT FOTO & ELECTRONIC GMBH
Application granted granted Critical
Publication of AU779082B2 publication Critical patent/AU779082B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Traffic Control Systems (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The electrical flash lamp has a main body (10) in which there is a reflector (14) with a light bulb (16) at the center. Light output is through a lens (24). The lens is in the form of a filter with elements that direct the light upwards through a suitable angle ( alpha ).

Description

AUSTRALIA
Patents Act 1990 Robot Foto- Electroni) GmbH
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT 9 Invention Title: Flashlamp for use in photographic monitoring systems The following statement is a full description of this invention including the best method of performing it known to us:- Technical Field The invention relates to a traffic monitoring installation for detecting violations of traffic regulations, comprising a camera for taking a picture of a violating vehicle as evidence of the traffic violation, and a photoflash lamp for illuminating the scene to be photographed.
Background Art Photographic traffic monitoring installations serve to detect violations of traffic regulations and to provide photographic evidence thereof. This may be the detection of a permissible maximum speed being exceeded. This may, however, also be the monitoring of traffic signal installations. Such photographic traffic monitoring installations take a photograph of the monitored vehicle. This photograph shows the license plate of the vehicle and, if appropriate, the driver of the vehicle. Furthermore, data such as time, day and, if applicable, the speed are recorded on the film. This provides evidence, adapted for use in court proceedings, of the violation.
A photoflash lamp is triggered to illuminate the scene to be photographed. The photoflash lamp comprises a flashlight source in a reflector. In prior art traffic monitoring installations, the photoflash lamp generates a light cone having a rather large opening angle.
Such a large opening angle, which extends beyond the observed vehicle is disadvantageous. The flashlight molests the neighbouring residents. This presents problems in particular with stationary traffic monitoring installations. The flashlight may irritate or dazzle other, unconcemrned drivers. Furthermore, the flashlight may be from afar, if it illuminates also the environment of the observed vehicle.
25 Thereby, other vehicles which also drive at excessive speed, are warned also at a distance. Braking actions of the drivers caused thereby may result in accidents.
JP 2526945 B (Patent Abstracts of Japan, Vol. 013, No 412 (P-932)) disclosed a photoflash lamp for photographic purposes, wherein a photo "rich of atmosphere" is to :o**be generated by arranging a grid in front of a rod-like flashlight. This grid passes the rays running straight along the optical axis, but vignettes the off-axis rays the more, the larger their angle formed with the optical axis is. Thereby, the picture becomes darker towards the edge of the photograph.
JP 612727228 A (Patent Abstracts of Japan, Vol. 011, No. 129 (P-570)) describes a photoflash lamp with a lens array of small lenses from a elastomeric 35 material the shape of which can be varied to vary the beam angle.
g.e* Summary of the Invention The invention is a traffic monitoring installation for detecting violations of traffic regulations, comprising a camera for taking a picture of a violating vehicle as evidence of the traffic violation, and a photoflash lamp for illuminating the scene to be photographed, characterised in that a filter limiting the beam angle of the photoflash lamp is arranged in front of the photoflash lamp.
Preferably, the filter has a grid structure of side-by-side beam-limiting ducts.
The structure may be defined by a pattern of crossing systems of strip-shaped webs.
It is an advantage of at least one embodiment of the invention that the problem with traffic monitoring installations of the type mentioned in the background art and their disadvantageous effect of alerting third persons to the presence of a camera are substantially avoided or reduced.
Brief Description of the Drawings The invention and its mode of operation will be more clearly understood from the following detailed description of a preferred embodiment when read with the appended drawing in which: Figure 1 shows a side view, partly in section, of a flashlamp for a photographic traffic monitoring system; and Figure 2 shows a broken front view of the flashlamp having a "honeycomb filter".
Description of the Preferred Embodiments e 25 Referring to Figure 1, there is shown a flashlamp 10 for a traffic monitoring system. The flashlamp 10 has a housing 12. A reflector 14 is located in the housing 12.
S A flashbulb 16 is located in the reflector 14. Power supply and drive of the flashbulb 16 is effected through cable 18. The housing 12 is mounted in a traffic monitoring *•osystem by means of a base 20. This is a conventional construction of a flashlamp.
A filter 22 is provided in front of the reflector 14 in a projecting edge of the housing 12 or in a detachable mounting. This filter 22 is formed in such a manner, that *it limits the radiation angle a of the flashlight. For this purpose, the filter 22 has a honeycomb structure having a plurality of beam limiting passages 24 arranged adjacent each other.
With reference to Figure 2, there is shown that the structure forms a pattern of intersecting strip-like webs 26 and 28 being substantially parallel to each other.
However, the passages can have other shapes, for example the shape of hexagonal honeycombs.
As can be seen from Figure 1, this limits the radiation angle a of the flashlight.
Thus, the flashlight is substantially concentrated to the vehicle to be photographed.
The described disturbing and warning effects are avoided.
oo* go• oooo

Claims (4)

1. A traffic monitoring installation for detecting violations of traffic regulations, comprising a camera for taking a picture of a violating vehicle as evidence of the traffic violation, and a photoflash lamp for illuminating the scene to be photographed, characterised in that a filter limiting the beam angle of the photoflash lamp is arranged in front of the photoflash lamp.
2. A traffic monitoring installation as claimed in claim 1, characterised in that the filter has a grid structure of side-by-side beam-limiting ducts.
3. A traffic monitoring installation as claimed in claim 2, characterised in that the structure is defined by a pattern of crossing systems of strip-shaped webs.
4. A traffic monitoring installation, substantially as hereinbefore described with reference to the accompanying drawings. DATED this twenty eighth day of September 2004 Robot Foto Electronic GmbH Patent Attorneys for the Applicant: F.B. RICE CO. ee
AU31398/01A 2000-04-04 2001-03-29 Flashlamp for use in photographic monitoring systems Ceased AU779082B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20006197U DE20006197U1 (en) 2000-04-04 2000-04-04 Flash lamp for use in photographic traffic surveillance systems
DE20006197 2000-04-04

Publications (2)

Publication Number Publication Date
AU3139801A AU3139801A (en) 2001-10-11
AU779082B2 true AU779082B2 (en) 2005-01-06

Family

ID=7939787

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31398/01A Ceased AU779082B2 (en) 2000-04-04 2001-03-29 Flashlamp for use in photographic monitoring systems

Country Status (4)

Country Link
EP (1) EP1143290B1 (en)
AT (1) ATE295553T1 (en)
AU (1) AU779082B2 (en)
DE (2) DE20006197U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20006197U1 (en) * 2000-04-04 2000-07-06 Robot Foto Electr Kg Flash lamp for use in photographic traffic surveillance systems
US8457483B2 (en) * 2010-03-02 2013-06-04 Expolmaging, Inc. Photographic system
CN102707546A (en) * 2012-06-07 2012-10-03 宋洪刚 Traffic monitoring camera light-supplementary lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272728A (en) * 1985-05-28 1986-12-03 Canon Inc Flashing and illuminating device with variable irradiating angle
JPH01152436A (en) * 1987-12-09 1989-06-14 Nikon Corp Camera incorporating electronic flash equipment
EP1143290A1 (en) * 2000-04-04 2001-10-10 ROBOT FOTO UND ELECTRONIC GmbH Flashlamp for use in a photographic traffic monitoring system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272728A (en) * 1985-05-28 1986-12-03 Canon Inc Flashing and illuminating device with variable irradiating angle
JPH01152436A (en) * 1987-12-09 1989-06-14 Nikon Corp Camera incorporating electronic flash equipment
EP1143290A1 (en) * 2000-04-04 2001-10-10 ROBOT FOTO UND ELECTRONIC GmbH Flashlamp for use in a photographic traffic monitoring system

Also Published As

Publication number Publication date
EP1143290A1 (en) 2001-10-10
AU3139801A (en) 2001-10-11
ATE295553T1 (en) 2005-05-15
DE50106163D1 (en) 2005-06-16
EP1143290B1 (en) 2005-05-11
DE20006197U1 (en) 2000-07-06

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Legal Events

Date Code Title Description
TC Change of applicant's name (sec. 104)

Owner name: ROBOT VISUAL SYSTEMS GMBH

Free format text: FORMER NAME: ROBOT FOTO AND ELECTRONIC GMBH