WO2004064454A1 - Sensor-controlled lighting fixture - Google Patents

Sensor-controlled lighting fixture Download PDF

Info

Publication number
WO2004064454A1
WO2004064454A1 PCT/NO2003/000442 NO0300442W WO2004064454A1 WO 2004064454 A1 WO2004064454 A1 WO 2004064454A1 NO 0300442 W NO0300442 W NO 0300442W WO 2004064454 A1 WO2004064454 A1 WO 2004064454A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
lighting fixture
persons
movements
light
Prior art date
Application number
PCT/NO2003/000442
Other languages
French (fr)
Inventor
Hans Kotthaus
Original Assignee
Hans Kotthaus
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
Application filed by Hans Kotthaus filed Critical Hans Kotthaus
Priority to AU2003291784A priority Critical patent/AU2003291784A1/en
Publication of WO2004064454A1 publication Critical patent/WO2004064454A1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the invention constitutes both a method of controlling light and a lighting fixture having a low-energy basic lighting and a sensor-controlled main lighting, in which the light output of the lighting fixture is reduced when and for as long as the sensor does not detect a person or movement within the defined sector of the sensor, and in which the output of the fixture is increased when the sensor detects a person or movement, and then is reduced again after the sensor has detected absence of persons or movements.
  • the invention comprises a sensor-controlled lighting fixture with the following main components: a light source, a holder for the light source, a housing for the lighting fixture, a control unit for cases in which the light source requires such a unit, a sensor, and either a dimmer or an additional light source with relatively low power consumption.
  • a sensor is understood to be a unit assembled from several components including at least one sensor element with an associated signal conditioning- and control unit, and a power supply unit.
  • the sensor functions as follows: when it is activated, it detects either persons or movements within a sector by sending control impulses that are used to increase and reduce the light output either by firstly switching on one, then another or several light sources, or by dimming a single light source up and down.
  • the invention is based on prior art for a fixture being controlled by a sensor embodied, for example, as an infrared or high-frequency sensor that senses either movements or objects of high heat radiation, and then switches on a light.
  • a sensor embodied, for example, as an infrared or high-frequency sensor that senses either movements or objects of high heat radiation, and then switches on a light.
  • Such fixtures and sensors have been known for a long time and are offered both individually and integrated on the Norwegian market. Examples of patents are DE 10115773 and JP 11073814.
  • a lighting fixture according to the invention provides a solution covering all of the above-mentioned needs in one lighting fixture.
  • the objects of the invention are to provide a method of controlling light that aids orientation in the dark without unnecessary consumption of energy, and that simultaneously provides a relatively high light output when persons move in proximity of the lighting fixture.
  • the novel part of the invention is that a lighting is provided with two light output levels, a low-energy light that may be used for instance as an aid for orientation in the dark, and a substantially more powerful light, relatively speaking, that may be used as a main light, for example.
  • the low-energy light may be used to indicate the entrance of a house and to illuminate a house number plate, thus facilitating access for police and ambulance personnel.
  • the low-energy light may be used to indicate emergency exits, for example.
  • the low-energy light is combined with a main lighting controlled by a sensor.
  • the low-energy light and the sensor may be controlled by a dusk relay, enabling both to be active only when and for as long as it is dark.
  • the low-energy light will be switched on as a basic lighting. In this manner, it is possible to provide for the need for orientation in the dark and simultaneously save energy as opposed to the main lighting being permanently switched on.
  • the invention provides main advantages in terms of a two- stage ligh that contributes to saving energy, that prolongs the lifetime of the light sources, and that reduces unnecessary light pollution.
  • two principles of attaining a low- energy base lighting are possible: Using a dimmer which adjusts the output of a main light source down to a lower level; or using an additional light source that has a low power consumption relative to the main light source, and that either is permanently switched on, for example indoors in a room without daylight, or that is controlled by a dusk relay, for instance when the fixture is used outdoors.
  • FIG. 1 shows an example of a practical embodiment according to the invention, in which a wall fixture is shown in front view with the person sensor (1) at the bottom, a fixture housing with a protective glass fitted with a main light source (2) on the inside, and an integrated, upturned additional light source (3) fitted above and illuminating a house number plate (4).
  • the house number plate may be part of the fixture.
  • the sensor includes supply of electricity and a control unit controlling the electricity to the main light source and to the additional light source.
  • the control unit may also include a dusk relay ensuring that the sensor switches on the electricity only when the surrounding light is darker than a preset minimum value.
  • the control unit also may include a dimmer that gradually increases the luminance of the main light when switched on, thereby sparing the light source.

Abstract

The invention comprises of a method of controlling light and a lighting fixture providing a low-energy basic lighting and a sensor-controlled main lighting, in which the light output of the lighting fixture is reduced to a preset, lower output level when and for as long as the sensor does not detect movements or persons, and in which the light outpout of the lighting fixture is increased when the sensor detects persons or movements within the defined sector of the sensor, upon which it is reduced again after the sensor has detected absence of persons or movements, thus providing a two-stage lighting that contributes to saving energy, that reduced unnecessary light pollution, and that prolongs the lifetime of the light source(s).

Description

SENSOR-CONTROLLED LIGHTING FIXTURE
Field of the invention
The invention constitutes both a method of controlling light and a lighting fixture having a low-energy basic lighting and a sensor-controlled main lighting, in which the light output of the lighting fixture is reduced when and for as long as the sensor does not detect a person or movement within the defined sector of the sensor, and in which the output of the fixture is increased when the sensor detects a person or movement, and then is reduced again after the sensor has detected absence of persons or movements.
The invention comprises a sensor-controlled lighting fixture with the following main components: a light source, a holder for the light source, a housing for the lighting fixture, a control unit for cases in which the light source requires such a unit, a sensor, and either a dimmer or an additional light source with relatively low power consumption. In here, a sensor is understood to be a unit assembled from several components including at least one sensor element with an associated signal conditioning- and control unit, and a power supply unit. The sensor functions as follows: when it is activated, it detects either persons or movements within a sector by sending control impulses that are used to increase and reduce the light output either by firstly switching on one, then another or several light sources, or by dimming a single light source up and down.
Prior art
The invention is based on prior art for a fixture being controlled by a sensor embodied, for example, as an infrared or high-frequency sensor that senses either movements or objects of high heat radiation, and then switches on a light. Such fixtures and sensors have been known for a long time and are offered both individually and integrated on the Norwegian market. Examples of patents are DE 10115773 and JP 11073814.
Disadvantages of prior art
With the current prior art solutions the choice is between a lighting fixture provided either with or without a sensor, meaning that the light either is completely switched off or is switched on with maximum light output. If, for example, it is desirable to illuminate a door, a house number, a bell button or a nameplate without switching on full light output, an additional lighting fixture or a luminous sign with an integrated light source has to be acquired. A lighting fixture according to the invention provides a solution covering all of the above-mentioned needs in one lighting fixture. Objects of the invention
The objects of the invention are to provide a method of controlling light that aids orientation in the dark without unnecessary consumption of energy, and that simultaneously provides a relatively high light output when persons move in proximity of the lighting fixture.
How to achieve the objects
The objects are achieved through features stated in subsequent claims.
Moreover, advantages of the invention are disclosed in the description and the subsequent claims.
The novel part of the invention is that a lighting is provided with two light output levels, a low-energy light that may be used for instance as an aid for orientation in the dark, and a substantially more powerful light, relatively speaking, that may be used as a main light, for example. For instance, the low-energy light may be used to indicate the entrance of a house and to illuminate a house number plate, thus facilitating access for police and ambulance personnel. Furthermore, the low-energy light may be used to indicate emergency exits, for example. The low-energy light is combined with a main lighting controlled by a sensor. The low-energy light and the sensor may be controlled by a dusk relay, enabling both to be active only when and for as long as it is dark. When a person approaches the area in which the fixture is attached, for example on the outer wall by the main door of the house, and enters within the defined sector area of the sensor, a full light output will be switched on. This main lighting will remain switched on for a predefined period of time and then is switched off, or dimmed down again, when the person has left the defined area, or the sensor no longer detects movements within the sector.
The low-energy light will be switched on as a basic lighting. In this manner, it is possible to provide for the need for orientation in the dark and simultaneously save energy as opposed to the main lighting being permanently switched on. The invention provides main advantages in terms of a two- stage ligh that contributes to saving energy, that prolongs the lifetime of the light sources, and that reduces unnecessary light pollution.
Description of drawings
Technically speaking, two principles of attaining a low- energy base lighting are possible: Using a dimmer which adjusts the output of a main light source down to a lower level; or using an additional light source that has a low power consumption relative to the main light source, and that either is permanently switched on, for example indoors in a room without daylight, or that is controlled by a dusk relay, for instance when the fixture is used outdoors.
The enclosed, schematic Fig. 1 shows an example of a practical embodiment according to the invention, in which a wall fixture is shown in front view with the person sensor (1) at the bottom, a fixture housing with a protective glass fitted with a main light source (2) on the inside, and an integrated, upturned additional light source (3) fitted above and illuminating a house number plate (4).
The house number plate may be part of the fixture. The sensor includes supply of electricity and a control unit controlling the electricity to the main light source and to the additional light source. For example, the control unit may also include a dusk relay ensuring that the sensor switches on the electricity only when the surrounding light is darker than a preset minimum value. For example, the control unit also may include a dimmer that gradually increases the luminance of the main light when switched on, thereby sparing the light source.

Claims

.
C l a i m s
A method of energy-saving light control using a sensor- controlled lighting fixture including a main light source (2) controlled by a sensor (1) that is arranged to cover a predefined sensor area, in which the lighting fixture and the sensor (1) are assembled in a unit, c h a r a ct e r i z e d i n that the method comprises:
- reducing the light output of the lighting fixture to a preset, lower output level when and for as long as the sensor (1) does not detect movements or persons;
- increasing the light output of the lighting fixture when the sensor (1) detects movements or persons within said sensor area; and
- then reducing said light output again after the sensor (1) has detected cessation of movements or absence of persons within the sensor area.
The method according to claim 1, ch a r a c t e r i z e d i n gradually increasing the light output of the lighting fixture when the sensor (1) detects movements or persons.
The method according to claim 1, ch a r a ct e r i z e d i n immediately increasing the light output of lighting fixture when the sensor (1) detects movements or persons.
A sensor-controlled lighting fixture for energy-saving light control, in which the fixture includes of a main light source (2) controlled by a sensor (1) that is arranged to cover a predefined sensor area, and in which the lighting fixture and the sensor (1) are assembled in a unit, ch a r a c t e ri z e d i n that the lighting fixture is arranged to reduce the light output thereof to a preset, lower output level when and for as long as the sensor (1) does not detect movements or persons, and that the lighting fixture is arranged to increase the light output thereof when the sensor (1) detects movements or persons within said sensor area, after which said light output again is reduced when the sensor (1) detects cessation of movements or absence of persons within the sensor area.
The sensor-controlled lighting fixture according to claim 4, c h a r a c t e r i z e d i n that the lighting fixture is arranged to gradually increase the light output thereof when the sensor (1) detects movements or persons .
The sensor-controlled lighting fixture according to claim 4, ch a r a c t e r i z e d i n that the lighting fixture is arranged to immediately increase the light output when the sensor (1) detects movements or persons.
The sensor-controlled lighting fixture according to claim 4, 5 or 6, ch a r a c t e r i z e d i n that the lighting fixture is provided with a dimmer that reduces said light output when the sensor (1) detects cessation of movements or absence of persons, and that the sensor (1) is arranged to send a control signal that increases said light output when the sensor (1) detects movements or persons. ,
8
The sensor-controlled lighting fixture according to claim 4, 5 or 6, c ha r a c t e r i z e d i n that the lighting fixture is arranged to switch off the main light source (2) when the sensor (1) detects cessation of movements or absence of persons, and that the sensor (1) is arranged to send a control signal that switches on the main light source (2) or increases the light output thereof when the sensor (1) detects movements or persons, and that the lighting fixture is provided with a low- energy additional light source (3) that is programmed to be switched on when the sensor (1) detects cessation of movements or absence of persons.
The sensor-controlled lighting fixture according to one of claims 4-8, ch a r a ct e r i z e d i n that the sensor (1) is a unit consisting of several control components, including a passive infrared (PIR) sensor, a high-frequency sensor or a combination of the two components.
The sensor-controlled lighting fixture according to one of claims 4-9, ch a r a c t e r i z e d i n that the sensor (1) is connected to a light-sensitive dusk relay that switches on the sensor (1) when little light is present .
The sensor-controlled lighting fixture according to one of claims 8-10, ch a r a ct e r i z e d i n that the additional light source (3) is arranged to illuminate an object (4) .
12. The sensor-controlled lighting fixture according to claim 11, c h a r a c t e r i z e d i n that the object is an information sign (4) forming an integrated part of the lighting fixture.
13. The sensor-controlled lighting fixture according to one of claims 8-12, ch a r a c t e r i z e d i n that the additional light source (3) is a light emitting diode, a so-called LED, or a light emitting foil.
14. The sensor-controlled lighting fixture according to one of claims 8-13, c h a r a c t e r i z e d i n that the additional light source (3) is fitted above, or on the side of, the main light source (2), and that the sensor (1) is fitted below the main light source (2) .
15. The sensor-controlled lighting fixture according to any of the previous claims, c h a r a c t e r i z e d i n that the fixture has a wall attachment.
PCT/NO2003/000442 2003-01-08 2003-12-29 Sensor-controlled lighting fixture WO2004064454A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003291784A AU2003291784A1 (en) 2003-01-08 2003-12-29 Sensor-controlled lighting fixture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20030078 2003-01-08
NO20030078A NO316490B1 (en) 2003-01-08 2003-01-08 Sensor controlled light fixture

Publications (1)

Publication Number Publication Date
WO2004064454A1 true WO2004064454A1 (en) 2004-07-29

Family

ID=19914357

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2003/000442 WO2004064454A1 (en) 2003-01-08 2003-12-29 Sensor-controlled lighting fixture

Country Status (3)

Country Link
AU (1) AU2003291784A1 (en)
NO (1) NO316490B1 (en)
WO (1) WO2004064454A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001407A1 (en) * 2011-06-30 2013-01-03 Koninklijke Philips Electronics N.V. Environment control apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357170A (en) * 1993-02-12 1994-10-18 Lutron Electronics Co., Inc. Lighting control system with priority override
US6275163B1 (en) * 1998-08-24 2001-08-14 Leviton Manufacturing Co., Inc. Automatic switch dimmer device
US6276814B1 (en) * 1999-11-13 2001-08-21 Bridisco Limited Lighting appliance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357170A (en) * 1993-02-12 1994-10-18 Lutron Electronics Co., Inc. Lighting control system with priority override
US6275163B1 (en) * 1998-08-24 2001-08-14 Leviton Manufacturing Co., Inc. Automatic switch dimmer device
US6276814B1 (en) * 1999-11-13 2001-08-21 Bridisco Limited Lighting appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001407A1 (en) * 2011-06-30 2013-01-03 Koninklijke Philips Electronics N.V. Environment control apparatus

Also Published As

Publication number Publication date
NO20030078A (en) 2004-01-26
AU2003291784A1 (en) 2004-08-10
NO316490B1 (en) 2004-01-26
NO20030078D0 (en) 2003-01-08

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