CN102413603B - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN102413603B CN102413603B CN201110214206.0A CN201110214206A CN102413603B CN 102413603 B CN102413603 B CN 102413603B CN 201110214206 A CN201110214206 A CN 201110214206A CN 102413603 B CN102413603 B CN 102413603B
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- 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
Abstract
The invention provides a lighting device improving the visibility based on radiating light further. The lighting device is provides a lamp lighting circuit part (2) lighting a light source part (1) of radiating light in a predetermined radiating range (S); a human sensing detecting sensor part (3) sensing the existence of a pedestrian (H) in at least the above radiating range (S); and a color temperature control part (4). When the human sensing detecting sensor part (3) detects no existence of the pedestrian (H), the color temperature control part (4) controls the radiating light to be in a first color temperature. When the human sensing detecting sensor part (3) detects the existence of the pedestrian (H), the color temperature control part (4) controls the radiating light to be in a second color temperature lower than the first color temperature.
Description
Technical field
The present invention relates to a kind of people's of detection existence and switch the lighting device of illumination.
Background technology
In recent years, be accompanied by concluding and coming into force etc. of " Kyoto Protocol ", people seek the significantly reduction of the discharge rate of greenhouse gases, the powerful power reducing that advances various electric equipments.Therefore, the lighting device using for the street lamp or the road lighting utensil etc. that are used for ensureing public illumination outside the room of pedestrains safety etc., no exception, seek further power reducing.
As this lighting device 610, for example, as shown in Figure 6, known to lower device, this device has: light source portion 61, and this light source portion 61 is at the range of exposures internal radiation light of regulation; Bright light circuit part 62, the electric power that this bright light circuit part 62 supplies with for making light source portion 61 bright lights; Illumination control part 64, this illumination control part 64 is in the time the existing of people (pedestrian H) being detected by people's detecting sensor portion 63, make the mean water level illumination of above-mentioned range of exposures become the 1st illumination, not by people's perception detecting sensor portion 63 detect pedestrian H time, by the mean water level illumination control of above-mentioned range of exposures be than the 1st illumination low, 20%～50% the 2nd illumination (for example, patent documentation 1) that is the 1st illumination.
Lighting device 610 is as shown in Fig. 6 (a), and light source portion 61 is connected in bright light circuit part 62, and bright light circuit part 62 is connected in illumination control part 64.In addition, the illumination control part 64 of lighting device 610, corresponding to the output of people's perception detecting sensor portion 63 and illuminance transducer 65, controls bright light circuit part 62, and above-mentioned illuminance transducer 65 detects the mean water level illumination of the range of exposures of irradiating from light source portion 61.Lighting device 610, as shown in Fig. 6 (b), is arranged at electric pole P, in the time existing of pedestrian H being detected by people's perception detecting sensor portion 63, makes light source portion 61 bright light brightly, and the illumination of the light irradiating from lighting device 610 is raise.In addition, lighting device 610 not by people's perception detecting sensor portion 63 detect pedestrian H time, reduce the illumination of the light irradiating from lighting device 610 by reducing the lightness of light source portion 61.
Lighting device 610 by detect the existence of pedestrian H and the illumination of the light irradiating from light source portion 61 changed in specific illumination range, can play do not bring unplessantness displeasure to pedestrian H and suppress the crime on road generation intimidate effect.In above-mentioned lighting device 610, do not detect pedestrian H time, owing to reducing the illumination of the light that irradiates from light source portion 61, thereby can suppress power consumption.
[patent documentation]
[patent documentation 1] TOHKEMY 2005-251724 communique
In lightness under the environment of the lighting devices such as street lamp 610 bright lights, the sensitivity state of people's eyes becomes the state that is known as mesopic vision.Mesopic vision is the visual state of the centre of photopic vision (photopic vision) and noctovision (scotopic vision), and the lightness that is surrounding environment is for example the state of 0.001～10cd/m2.
In addition, being subject in light container of people's eyes, exist differentiate in bright place the photosensitivity of color low, the cellula visualis that is called as cone, and only differentiate light and shade and the photosensitivity of dark place work high, the cellula visualis that is called as rhabodoid.
The rhabodoid playing a role under scotopic environment and be known as the cone playing a role under the bright environment of photopic vision, their spectral luminous efficiency (spectral luminous efficiency) difference.General, people's eyes have the spectral characteristic that 555nm is peak value in photopic vision, 507nm is peak value in noctovision.In addition, people's eyes are the in the situation that of mesopic vision, and in photopic vision, the rhabodoid both sides of the cone of activity and activity in noctovision are movable.
Therefore, lower at state and the scotopic state of photopic vision, according to the spectral distribution of the light irradiating, the lightness difference that people feels.Particularly, the in the situation that of mesopic vision, there is following tendency in the sensitivity of people's eyes, that is, the lightness of the surrounding environment of complying with according to people, sensory characteristic changes.
That is, make the lightness of the light irradiating with identical spectral distribution from the light source portion 61 of lighting device 610 changes at lighting device 610, the lightness that pedestrian H feels is different from the variation of amount of beam and more than the variation of amount of beam.
Even if the visibility under the state of lighting device 610 based on taking photopic vision designs light source portion 61 as the value of the light value of the light beam of benchmark, illumination, brightness etc., but in people's eyes, also has the situation that cannot feel enough lightnesses in mesopic vision.In addition, feel that with people the illumination of enough lightnesses of regulation carries out bright light control simply in illumination apparatus 610, exist lighting device 610 to consume the possibility of unnecessary electric power.Therefore,, if lighting device 610 improves the visuality of the light irradiating from light source portion 61, result is that power consumption may reduce.
Summary of the invention
The present invention In view of the foregoing makes, and its object is to provide a kind of can further improve the visual lighting device of eyes to light irradiation.
Lighting device of the present invention is characterised in that to have: bright light circuit part, and this bright light circuit part makes the light source portion bright light at the range of exposures internal radiation light of regulation; People's perception detecting sensor portion, the existence of the people in above-mentioned range of exposures at least detects in this people's perception detecting sensor portion; And color temperature control part, do not detect by above-mentioned people's perception detecting sensor portion people time, light-operated the 1st color temperature that is made as that this color temperature control part irradiates above-mentioned light source portion, and, in the time existing of people being detected by above-mentioned people's perception detecting sensor portion, this color temperature control part irradiates above-mentioned light source portion is light-operatedly made as the 2nd color temperature that color temperature is lower than above-mentioned the 1st color temperature.
In this lighting device, above-mentioned light source portion at least comprises the 1st light source and the 2nd light source, above-mentioned the 2nd light source irradiates and the relative low light of light phase colour temperature irradiating from above-mentioned the 1st light source, above-mentioned color temperature control part makes the light that above-mentioned light source portion is irradiated become above-mentioned the 2nd color temperature by making the light of above-mentioned the 2nd light source irradiation carry out the 1st output, and, low by above-mentioned the 1st output of light ratio that above-mentioned the 2nd light source is irradiated, and above-mentioned light source portion is irradiated be light-operatedly made as above-mentioned the 1st color temperature.
In this lighting device, preferably in above-mentioned light source portion, compared with the light irradiating from above-mentioned the 1st light source, the light irradiating from above-mentioned the 2nd light source is lower in the color temperature of the central part side of above-mentioned range of exposures, and, compared with the light irradiating from above-mentioned the 2nd light source, the light irradiating from above-mentioned the 1st light source is higher in the color temperature of the periphery side of above-mentioned range of exposures.
In this lighting device, above-mentioned the 1st light source of above-mentioned light source portion and above-mentioned the 2nd light source be the central portion side towards above-mentioned light source portion from the periphery side of above-mentioned light source portion respectively, have illuminating part that color temperature is high and the illuminating part low with this illuminating part phase colour temperature, above-mentioned the 2nd light source disposes the illuminating part low with above-mentioned the 1st light source phase colour temperature from above-mentioned periphery side to the same area of above-mentioned central portion side.
The effect of invention
In lighting device of the present invention, there is the visual effect that can further improve light irradiation.
Brief description of the drawings
Fig. 1 (a) represents the schematic configuration block diagram of the lighting device of execution mode 1, and Fig. 1 (b) is diagrammatic illustration figure, and Fig. 1 (c) is major part vertical view.
Fig. 2 (a) represents the action specification figure of the bright light action of same lighting device, and Fig. 2 (b) is the sequential chart that represents action timing.
Fig. 3 (a) represents the vertical view of the major part of the lighting device of execution mode 2, and Fig. 3 (b) is major part structure vertical view, and Fig. 3 (c) is other major part structure vertical view.
Fig. 4 is the schematic configuration block diagram of same lighting device.
Fig. 5 is the action specification figure of same lighting device.
Fig. 6 (a) represents the structured flowchart of lighting device in the past, and Fig. 6 (b) is action specification figure.
The explanation of symbol
S range of exposures
H pedestrian (people)
1 light source portion
1a the 1st light source
1b the 2nd light source
2 bright light circuit parts
3 people's perception detecting sensor portions
4 color temperature control parts
10 lighting devices
Embodiment
(execution mode 1)
Below, use Fig. 1 and Fig. 2 to describe the lighting device of present embodiment.
As shown in Figure 1, the lighting device 10 of present embodiment has: bright light circuit part 2, and this bright light circuit part 2 makes light source portion 1 bright light and is connected with outside source power supply etc., and above-mentioned light source portion 1 is at the range of exposures S internal radiation light of regulation; People's perception detecting sensor portion 3, the existence of the people (for example, pedestrian H) in range of exposures S at least detects in this people's perception detecting sensor portion 3; Color temperature control part 4, this color temperature control part 4 not by above-mentioned people's perception detecting sensor portion 3 detect pedestrian H time, what light source portion 1 was irradiated light-operatedly (is for example made as the 1st color temperature, color of sunshine (day white)), and, in the time existing of pedestrian H being detected by people's perception detecting sensor portion 3, light-operated the 2nd color temperature that color temperature is lower than above-mentioned the 1st color temperature (for example, bulb look (lamp white)) that is made as that light source portion 1 is irradiated.
More particularly, the lighting device 10 of present embodiment, as shown in Fig. 1 (b), is installed on the pillar such as electric pole or the iron prop P that is erected at roadside, park or parking lot.Lighting device 10 keeps light source portion 1 in the inside of rectangular-shaped lamp main body 21.Lighting device 10 can have cover 22 in the front surface side of lamp main body 21 with loading and unloading.In addition, people's perception detecting sensor portion 3 of lighting device 10 is for ease of detecting at least existence of the pedestrian H in the range of exposures S of the light irradiating from light source portion 1, and is arranged at the leading section of the lighting device 10 of the eminence that is arranged on pillar P.
The lighting device 10 of present embodiment is as shown in Fig. 1 (c), in lamp main body 21, as light source portion 1, at least maintain the 1st light source 1a and the 2nd light source 1b, the light that the 2nd light source 1b irradiates is compared with the light irradiating from above-mentioned the 1st light source 1a, and color temperature is relatively low.The 1st light source 1a is the light-emitting device 11 that can send the light of color of sunshine, is provided with multiple (being 12) here in a face side of rectangular wiring substrate 1c.In addition, the 2nd light source 1b is the light-emitting device 12 that can send the light of bulb look, is provided with multiple (being 12) here in a face side of rectangular wiring substrate 1c.The light-emitting device 11 of the conduct of light source portion 1 the 1st light source 1a and as the light-emitting device 12 of the 2nd light source 1b in the time overlooking, mutually nested ground (entering れ To) is configured to 2 row.In addition, lighting device 10, is accommodated in bright light circuit part 2 and color temperature control part 4 inside of the lamp main body 21 of the opposition side of cover 22 across light source portion 1 as the power supply unit that can power to light source portion 1.
As the light source portion 1 of the lighting device 10 for such, can use light- emitting device 11,12 to form, above-mentioned light- emitting device 11,12 has solid-state light emitting element that can be luminous by energising.As solid-state light emitting element, for example, can list LED (light emitting diode, light-emitting diode) wafer or organic EL (electroluminescent, electroluminescence) element etc.Light- emitting device 11,12 for example can list the device that can send white light, and this device has and sends the LED wafer of blue light and absorb blue light and send the fluorophor of the longer fluorescence of wavelength.Such light- emitting device 11,12, when the LED wafer of the same race of blue light is sent in use, by changing the amount of fluorophor or the kind of fluorophor, can will change over the color temperature of regulation from the light of light-emitting device 11,12 radiation.
In the lighting device 10 of present embodiment, change matchingly the color temperature of light source portion 1 with the sensitivity of the acceptor of the people under the environment of mesopic vision.Therefore, as the 1st light source 1a and the 2nd light source 1b of light source portion 1, the light- emitting device 11,12 that has the LED wafer of the same race that sends blue light in use, preferably light-emitting device 11 uses different types of fluorophor and can send the light that color temperature is different with light-emitting device 12.; preferably light- emitting device 11,12 uses following fluorophor;; the luminescent spectrum of fluorescence the light radiating from light-emitting device 11, the main radiation of the fluorophor from light-emitting device 11; with the light radiating from light-emitting device 12, mainly from compared with the luminescent spectrum of the fluorescence of the fluorophor radiation of light-emitting device 12, become the fluorophor of the short side of wavelength.Or light- emitting device 11,12 also can have respectively multiple fluorophor and form.In this case, preferably to make as follows to send the fluorophor amount of the short fluorescence of wavelength many for light- emitting device 11,12,, the luminescent spectrum of fluorescence the light that makes to radiate from light-emitting device 11, the main radiation of the fluorophor from light-emitting device 11, with the light radiating from light-emitting device 12, mainly from compared with the luminescent spectrum of the fluorescence of the fluorophor radiation of light-emitting device 12, become the short side of wavelength.
As the LED wafer that can send blue light, for example, can use following structure,, the structure of the gallium nitride system compound semiconductor layer of the gallium nitride system compound semiconductor layer of lamination N-shaped, the luminescent layer being formed by the gallium nitride compound semiconductor that contains In, P type in turn on SiC substrate.LED wafer also can arrange respectively the anode electrode being electrically connected with the gallium nitride system compound semiconductor layer of P type and be formed at the cathode electrode of SiC substrate.
As absorbing from the blue light of LED wafer and sending the fluorophor of the light of different tones, for example, except can adopting the fluorophor of the aluminate-series such as the Tb3Al5O12 fluorophor that has applied the Y3Al5O12 fluorophor of Ce or applied Ce, can also adopt the fluorophor of the silicate of (SrBa) 2SiO4 fluorophor that has applied the Ba2SiO4 fluorophor of Eu or applied Eu etc., apply the CaAlSiN3 fluorophor of Eu, apply the Sr2Si5N8 fluorophor of Eu, apply the Ca2Si5N8 fluorophor of Eu, apply the SrSi7N10 fluorophor of Eu, apply the nitride based fluorophor of CaSi7N10 fluorophor of Eu etc.
Light- emitting device 11,12 is by suitably combining LED wafer and fluorophor, for example, can irradiate light, the light of warm white (warm white) of 3460K and the light of the bulb look (lamp white) of 2840K of the cold white (cool white) of light, the 4170K of the white (natural white) naturally of light, the 5030K of the color of sunshine that correlated colour temperature is 6510K (day white).
The light source portion 1 of the lighting device 10 of present embodiment is used light-emitting device 11 as the 1st light source 1a, this light-emitting device 11 has LED wafer and has applied the Y3Al5O12 fluorophor of Ce, above-mentioned LED wafer has the gallium nitride compound semiconductor that can send blue light, and above-mentioned Y3Al5O12 fluorophor absorbs blue light and sends yellow-green light.In addition, light source portion 1 is used following light-emitting device 12 as the 2nd light source 1b, this light-emitting device 12 has LED wafer, applied the SrCaSiN fluorophor of Eu and has applied the Y3Al5O12 fluorophor of Ce, above-mentioned LED wafer has the gallium nitride compound semiconductor that can send blue light, above-mentioned SrCaSiN fluorophor absorbs blue light, and can send the longer fluorescence of wavelength compared with the fluorophor of the light-emitting device 11 for as the 1st light source 1a, above-mentioned Y3Al5O12 fluorophor absorbs blue light and also sends yellow-green light.
Each light- emitting device 11,12 can be arranged on LED wafer not to be had on illustrated installation base plate and forms.LED wafer is sealed by the translucent resin that contains respectively above-mentioned fluorophor.In addition, translucent resin can improve the taking-up efficiency from the light of LED wafer, and, by LED wafer by electrical connections such as wires (not shown) and form supply path in the situation that, can guardwire.
Light- emitting device 11,12 is not limited only to said structure, for example, also can adopt following structure,, be accommodated in the structure of the inside of the packaging body with common profile, above-mentioned packaging body is formed with the pair of conductors pattern (not shown) forming on the recess of depression and the inner bottom surface at this recess in inside.Light- emitting device 11,12 can be installed LED wafer at the inner bottom surface of the above-mentioned recess of above-mentioned packaging body.In addition, light- emitting device 11,12 is as long as the translucent resin that configuration contains above-mentioned fluorophor in above-mentioned recess.
Light- emitting device 11,12 can use the above-mentioned pair of conductors pattern (for example, the conductive pattern that most surface is electroplated by Au) on the inner bottom surface of above-mentioned recess of above-mentioned packaging body, forms the supply path of LED wafer.
The packaging body of light- emitting device 11,12 can use ceramic substrate and metal base substrate or epoxy resin base plate etc., and above-mentioned ceramic substrate uses aluminium oxide or aluminium nitride etc., and above-mentioned metal base substrate uses the metal materials such as Cu, Al or Fe.In addition, the packaging body of light- emitting device 11,12 for example also can use by the resin material such as allyl resin or epoxy resin structure integrally formed pair of metal conductor.In this case, light- emitting device 11,12 also can be electrically connected LED wafer and pair of metal conductor respectively, and the pair of metal conductor exposing from resin material is played a role as the outer electrode of light- emitting device 11,12.
Light- emitting device 11,12 can be suitably electrically connected and form supply path with a lip-deep not shown Wiring pattern that is formed on wiring substrate 1c by AuSn etc.Light source portion 1 is connected in series the multiple light-emitting devices 11 as the 1st light source 1a that are disposed on wiring substrate 1c respectively.Same, light source portion 1 is connected in series the multiple light-emitting device 12 as the 2nd light source 1b being disposed on wiring substrate 1c respectively.The 1st light source 1a and the 2nd light source 1b, can distinguish the mode of bright light independently by power supply, are electrically connected with the above-mentioned Wiring pattern of wiring substrate 1c.
The 1st light source 1a and the 2nd light source 1b of light source portion 1 carry out bright light control by the power supply that comes selfigniting light circuit part 2, above-mentioned come the power supply of selfigniting light circuit part 2 signal based on from color temperature control part 4.In addition, light source portion 1 is not limited only to use the light- emitting device 11,12 of LED wafer, can also use the discharge lamps such as fluorescent lamp, mercury vapor lamp or incandescent lamp etc.In the situation that using the discharge lamps such as fluorescent lamp, light source portion 1 changes the kind of fluorophor in order to change color temperature, thus, the color temperature of light source portion 1 is set as to the color temperature of regulation.In addition, in the situation that utilizing incandescent lamp, light source portion 1 can be changed into the color temperature of light source of incandescent lamp with painted filter the color temperature of regulation.In the situation that using fluorescent lamp or incandescent lamp as light source portion 1, for future, the light of autofluorescence lamp or incandescent lamp is radiated in range of exposures S efficiently, reflecting plate is suitably set in lamp main body 21, and this baffle reflection is from the light of fluorescent lamp or incandescent lamp.
In addition, form the 1st light source 1a and the 2nd light source 1b of light source portion 1, not needing must be the light source that has all used as described above LED wafer, for example, also can be formed by the light-emitting device 11 that has used LED wafer the 1st light source 1a of the light that sends nature white, and be formed the 2nd light source 1b of the light that sends warm white by fluorescent lamp.
Bright light circuit part 2 suitably sets corresponding to the kind of light source portion 1, for example, in the case of having used the light- emitting device 11,12 of LED wafer as the 1st light source 1a and the 2nd light source 1b, be converted to the suitably formation such as AC-DC converter, the drive control part that the electric current of current-limiting resistance and each light- emitting device 11,12 is flow through in control of direct current power by the commercial ac power power of supplying with from outside.In addition, the bright light circuit part 2 of lighting device 10 at the power supply as powering to light source portion 1 with solar cell or wind-driven generator etc. are connected, can substitute above-mentioned AC-DC converter and use DC-DC converter form.In addition, in the situation that having used fluorescent lamp as light source portion 1, the bright light circuit part 2 of lighting device 10 is used the electronic stabilizer that has utilized change-over circuit.
In the lighting device 10 of present embodiment, light source portion 1 is arranged on the inside of lamp main body 21, and this lamp main body 21 has the cover 22 that is formed and covered the front surface side of light source portion 1 by the material of light transmission.Light source portion 1, bright light circuit part 2 and color temperature control part 4 are suitably accommodated in lamp main body 21, still, are not to be accommodated in integratedly in lamp main body 21 with light source portion 1.; lighting device 10 also can make to receive the lamp main body 21 of light source portion 1 and the body split of storage people perception detecting sensor portion 3 and color temperature control part 4 etc. and arrange; thereby the maintenance separately of light source portion 1, bright light circuit part 2, people's perception detecting sensor portion 3 and color temperature control part 4 becomes easy.
The people's perception detecting sensor portion 3 that is used for the lighting device 10 of present embodiment for example can be made up of the sensor unit with thermoelectric pickup, and above-mentioned thermoelectric pickup detects the hot line that pedestrian H sends.As the thermoelectric pickup of transducer that forms people perception detecting sensor portion 3, in order easily to detect the existence of the pedestrian H in the range of exposures S of the light irradiating from light source portion 1, be arranged on the leading section of lighting device 10, above-mentioned lighting device 10 is arranged on to be become on the pillar of eminence P.In addition, the range of exposures S of the light irradiating from light source portion 1 can set arbitrarily, must be not necessarily the four corner reaching from the light of light source portion 1, and the light that also can be set as irradiating from light source portion 1 keeps the scope of the illumination of regulation.
In addition, the transducer of people's perception detecting sensor portion 3 is not limited only to 1, also can configure multiple.In this case, the output of each transducer is input to color temperature control part 4 by lighting device 10.Each transducer can change direction with respect to lamp main body 21 respectively, by changing respectively the direction of each transducer, can change detection range.,, by making the direction of each transducer mutually different, can expand the detection range of people's perception detecting sensor portion 3.Therefore, also can make the detection range of people's perception detecting sensor portion 3 than large from the range of exposures S of light source portion 1 light irradiation.
For example, configuring adjacently multiple in the situation that using lighting device 10 as street lamp, lighting device 10, by the wide detection range of light-struck range of exposures S from the light source portion 1 of each lighting device 10 is set recently, can make detection range overlap each other.Thus, lighting device 10 can be before pedestrian H moves, the color temperature that the light source portion 1 of the each lighting device 10 of change from the moving direction of pedestrian H is irradiated.
In addition, as people's perception detecting sensor portion 3, being not limited only to have the structure of thermoelectric pickup, can be also the imageing sensor with CCD or CMOS etc.Equally, as people's perception detecting sensor portion 3, also can use as lower device,, detect the having or not of existence of pedestrian H by infrared camera or heat picture sensor, and the signal of testing result is sent to the device of color temperature control part 4 by wireless or wired mode.
The color temperature control part 4 that is used for the lighting device 10 of present embodiment can be controlled bright light circuit part 2 in the time of light source portion 1 bright light, and adjustment is supplied to the 1st light source 1a of light source portion 1 and the electric power of the 2nd light source 1b.
The color temperature control part 4 of the lighting device 10 of present embodiment for example, in the time pedestrian H not detected by people's perception detecting sensor portion 3, only makes the 1st light source 1a bright light of light source portion 1.Thus, the color temperature of the light in the range of exposures S of lighting device 10 becomes the 1st color temperature.In addition, the color temperature control part 4 of lighting device 10, in the time pedestrian H being detected by people's perception detecting sensor portion 3, also makes the 2nd light source 1b bright light except the 1st light source 1a of light source portion 1.Thus, the color temperature of the light in the range of exposures S of lighting device 10 becomes color temperature 2nd color temperature lower than the 1st color temperature of the light in range of exposures S.
As an alternative, form as follows,, color temperature control part 4 carries out the 1st output by the light that makes to radiate as the light-emitting device 12 of the 2nd light source 1b, and make the light that light source portion 1 is irradiated become the 2nd color temperature, and, low by above-mentioned the 1st output of the light ratio that makes to send as the light-emitting device 12 of the 2nd light source 1b, and light source portion 1 is irradiated be light-operatedly made as above-mentioned the 1st color temperature.
, can adjust the illumination of the light irradiating from light source portion 1 for the color temperature control part 4 of the lighting device 10 of present embodiment and the color temperature of the light that irradiates from light source portion 1 simultaneously.Such color temperature control part 4 can use the formations such as microcomputer.That is, color temperature control part 4 can by microcomputer etc. and based on from people's perception detecting sensor portion 3 notify having of pedestrian H stateless signal, control bright light circuit part 2 and adjust the color temperature of the light irradiating from light source portion 1.
The color temperature control part 4 of the lighting device 10 of present embodiment plays a role as color temperature controlling organization.In addition, the color temperature control part 4 of lighting device 10 also can have the not shown illuminance transducer being made up of photodiode in addition.Color temperature control part 4 is also used as illumination control, and the light intensity irradiating from light source portion 1 is adjusted in its lightness based on judge the surrounding environment of lighting device 10 from the signal of illuminance transducer.Color temperature control part 4 for example can have electronic circuit, this electronic circuit is output as the threshold value of regulation when above at illuminance transducer, while being around bright daytime etc., light source portion 1 is turned off the light, in the time that the output of illuminance transducer does not reach the threshold value of regulation,, while being around dim night etc., make light source portion 1 bright light.
Next, use Fig. 2, to using multiple situations to describe using the lighting device of present embodiment 10 as street lamp.
In addition, lighting device 10 is as shown in the lighting device 10 in the left side of Fig. 2 (a), in the time that people's perception detecting sensor portion 3 detects pedestrian H, bright light circuit part 2 is except the 1st light source 1a, also make and relative the 2nd low light source 1b bright light of the 1st light source 1a phase colour temperature, and the light (with reference to the dashdotted arrow of list of Fig. 2 (a)) of irradiation bulb look.,, when lighting device 10 only detects pedestrian in people's perception detecting sensor portion 3, from bright light circuit part 2 output powers (with reference to the single-point line of Fig. 2 (b)), make the 2nd light source 1b bright light that color temperature is relatively low.Thus, the 1st light source 1a and the 2nd light source 1b of lighting device 10 irradiate range of exposures S, and bright can make the lightness ratio of the light irradiating from light source 1 there is no pedestrian H time, and reduce color temperature.
The in the situation that the lighting device 10 of present embodiment not detecting pedestrian H in people's perception detecting sensor portion 3, because light source portion 1 only makes the 1st light source 1a bright light, so, compared with the situation that makes the 1st light source 1a and the 2nd light source 1b bright light with light source portion 1, lightness step-down but can suppress power consumption.
But darker in the state of mesopic vision of the lighting device 10 of present embodiment, the 1st light source 1a irradiates the light of the color of sunshine that color temperature that people's mesopic vision visibility uprises is high.Thus, lighting device 10 compared with the situation that makes merely the output of the light source portion designing with the visibility of the eye under photopic vision state reduce, can improve the visuality of people's eyes in mesopic vision.
Therefore, compared with the situation of the output of the light source portion that the lighting device 10 of present embodiment matches with the sensitivity of the eyes under photopic vision with simple reduction, can in mesopic vision, guarantee with photopic vision under the equal visuality of the light source that matches of the sensitivity of eyes, and can suppress power consumption.
In addition, in lighting device 10, except the 1st light source 1a, also light irradiation of the 2nd light source 1b, thus, the lightness of range of exposures S improves.Lighting device 10 is set respectively the 1st light source 1a of light source portion 1 and the spectral distribution of the 2nd light source 1b as follows,, compare with the situation that only reaches identical lightness with the 1st light source 1a, the middle visibility under the lightness of the 1st light source 1a and the 2nd light source 1b bright light is uprised.Thus, lighting device 10 is under the state of mesopic vision, under the darker situation of lightness, by compared with brighter situation, the light of short wavelength's composition being increased, even also can make people become clear with identical amount of beam.
In addition, lighting device 10 is as shown in Fig. 2 (b), in the time that pedestrian H is current, color temperature control part 4 is not merely intermittently and hastily to carry out the bright light of the 2nd light source 1b or the control of turning off the light, color temperature control part 4 also can be controlled bright light circuit part 2, thereby can make the bright light of the 2nd light source 1b fade in.Same, color temperature control part 4 also can be controlled bright light circuit part 2, thereby the 2nd turning off the light of light source 1b faded out.
Thus, the bright light circuit part 2 of lighting device 10 makes the bright light of the 2nd light source 1b and turns off the light to fade in or fade out, the bright light or turn off the light smoothly of the 2nd light source 1b by making light source portion 1, the sense of discomfort of the pedestrian H can reduce the turning off the light of the bright light of the 2nd light source 1b or the 2nd light source 1b time.
The bright light circuit part 2 of lighting device 10 fades in or fades out in order to make the bright light of the 2nd light source 1b and to turn off the light, for example, can make color temperature control part 4 have following circuit, this circuit changes the lighting time in the stipulated time and the ratio of time of turning off the light, and the output of the 2nd light source 1b is carried out to PWM control.
In addition, the in the situation that lighting device 10 not only can't detect pedestrian H in people's perception detecting sensor portion 3, bright light the 1st light source 1a only immediately, also can for example,, during people's perception detecting sensor portion 3 can't detect the retention time (10 seconds) of the regulation after pedestrian H, still maintain the bright light of the 2nd light source 1b.
In addition, the lighting device 10 of present embodiment is not limited only to following situation,, makes all the time the 1st light source 1a bright light that is, and, the in the situation that of only pedestrian H being detected in people's perception detecting sensor portion 3, make the 2nd light source 1b also bright light on the basis of the 1st light source 1a., the color temperature control part 4 of lighting device 10 also can be controlled bright light circuit part 2 as follows,, in the situation that pedestrian H not detected, make the 1st light source 1a bright light, and, the in the situation that of pedestrian H being detected in people's perception detecting sensor portion 3, only make the 2nd light source 1b bright light.
The lighting device 10 of present embodiment is not limited only to according to having or not of the existence of pedestrian H, the lightness of the light irradiating from light source portion 1 be changed, be make the color temperature of the light irradiating from light source portion 1 become with each lightness the spectral distribution that matches of the state of mesopic vision.Thus, the lighting device 10 of present embodiment can further improve the visuality of illumination light under the situation of mesopic vision, and can reduce power consumption.
(execution mode 2)
The difference of the lighting device 10 of present embodiment is, the light source portion 1 of the light-emitting device with 2 kinds 11,12 of the execution mode 1 shown in alternate figures 1, is used the light source portion 1 with multiple (being 4 kinds) light-emitting device 11,12,13,14 shown in Fig. 3 here.In addition, for the inscape identical with execution mode 1, also suitably description thereof is omitted to give identical symbol.
As shown in Fig. 3 (a), in lamp main body 21, as light source portion 1, multiple light-emitting devices 11,12,13,14 are configured in to a face side of rectangular-shaped wiring substrate 1c for the light source portion 1 of the lighting device 10 of present embodiment.The light source portion 1 of lighting device 10 at least keeps the 1st light source 1a (with reference to Fig. 3 (b)) and the 2nd light source 1b (with reference to Fig. 3 (c)), and above-mentioned the 2nd light source 1b irradiates and the relative low light of light phase colour temperature irradiating from above-mentioned the 1st light source 1a.Light source portion 1, as the 1st light source 1a, have the light that can send color of sunshine light-emitting device 11, can send nature white light light-emitting device 13 and can send the light-emitting device 14 of the light of warm white.Each light-emitting device 11,13,14 of the 1st light source 1a arranges respectively multiple (being respectively 24,24,12 here) in a face side of rectangular-shaped wiring substrate 1c.In addition, in light source portion 1, as the 2nd light source 1b, have the light that can send bulb look light-emitting device 12, can send nature white light light-emitting device 13 and can send the light-emitting device 14 of the light of warm white.Each light-emitting device 12,13,14 of the 2nd light source 1b is provided with multiple (being respectively 12,24,24 here) in a face side of rectangular-shaped wiring substrate 1c.
The 1st light source 1a of light source portion 1, the central portion side of light source portion from the periphery side direction of light source portion 1 has light-emitting device 11,13 and light-emitting device 14, above-mentioned light-emitting device 11,13 is as the color temperature illuminating part relatively higher than warm white light, and above-mentioned light-emitting device 14 is as the color temperature illuminating part lower than this illuminating part.In addition, the central portion side that the 2nd light source 1b of light source portion 1 light source portion from the periphery side direction of light source portion 1 has light-emitting device 13 and light-emitting device 14,12, above-mentioned light-emitting device 13 is as the color temperature illuminating part relatively higher than warm white light, and above-mentioned light-emitting device 14,12 is as the color temperature illuminating part lower than this illuminating part.
In addition, at the same area from above-mentioned periphery side to above-mentioned central portion side, the 2nd light source 1b disposes the light-emitting device 13 that color temperature is lower than the light-emitting device of the 1st light source 1a 11.In addition, at the same area from above-mentioned periphery side to above-mentioned central portion side, the 2nd light source 1b disposes the light-emitting device 14 that color temperature is lower than the light-emitting device of the 1st light source 1a 13.Same, at the same area from above-mentioned periphery side to above-mentioned central portion side, the 2nd light source 1b disposes the light-emitting device 12 that color temperature is lower than the light-emitting device of the 1st light source 1a 14.
General, lighting device 10 designs as follows, that is, in range of exposures S, make the light that irradiates from light source portion 1 roughly under the lightness of central part brighten, along with advancing and dimmed to periphery under light source portion 1.Therefore, lighting device 10, even if also make the sensitivity difference of people's eyes in the range of exposures S of light source portion 1 corresponding to lightness.
The light source portion 1 of the lighting device 10 of present embodiment, as shown in Fig. 3 (a), has the 1st light source 1a and the 2nd light source 1b.The 1st light source 1a of light source portion 1 has light-emitting device 11 as the high illuminating part of color temperature, as having light-emitting device 14 than this low illuminating part of light-emitting device 11 color temperatures.Between light-emitting device 11 and light-emitting device 14, dispose light-emitting device 13, between the color temperature of the light that the color temperature of the light that the color temperature that this light-emitting device 13 sends is sent at light-emitting device 11 and light-emitting device 14 send.In addition, the 2nd light source 1b of light source portion 1 has light-emitting device 13 as the high illuminating part of color temperature, and as thering is light-emitting device 12 than this low illuminating part of light-emitting device 13 color temperatures.Between light-emitting device 13 and light-emitting device 12, dispose light-emitting device 14, between the color temperature of the light that the color temperature of the light that the color temperature of the light that this light-emitting device 14 sends is sent at light-emitting device 13 and light-emitting device 12 send.Light source portion 1 is in the time overlooking, in the inclined to one side central portion side of light source portion 1, the 2nd light source 1b disposes respectively the light-emitting device 13,14,12 as illuminating part, and the color temperature of light-emitting device 11,13,14 that the color temperature of above-mentioned light-emitting device 13,14,12 is compared to the illuminating part of the 1st light source 1a is low.
Therefore, in the light source portion 1 of the lighting device 10 of present embodiment, compared with the light irradiating from the 1st light source 1a, the light irradiating from the 2nd light source 1b is lower in the central part side color temperature of range of exposures S, and, compared with the light irradiating from the 2nd light source 1b, the light irradiating from the 1st light source 1a becomes higher in the periphery side color temperature of range of exposures S.That is, light source portion 1 is carried out luminous intensity distribution design to the 2nd light source 1b and the 1st light source 1a as follows, that is, in range of exposures S, with lightness rank separately matchingly, start more to advance to periphery from central part side, color temperature is higher.
Thus, the lighting device 10 of present embodiment can be as follows from light source portion 1 light irradiation,, in the case of by lighting device 10a, the 10b of same structure street lamp as shown in Figure 4, adjacency configures like that, at the direct of travel on road surface (left side from Fig. 4 is to right side) of pedestrian H, along with the central part side direction outer peripheral portion side from range of exposures S, with region A, B, C, (region a, b, sequence color temperature c) uprise in turn.
Here, lighting device 10 for example detects the testing result having or not of pedestrian H regardless of people's perception detecting sensor portion 3, all the time make each light-emitting device 11,13,14 bright lights, the 1st light source 1a that light-emitting device 11,13,14 color temperatures as lighting device 10 are relatively high.As each light-emitting device 14,13,11 of the 1st light source 1a, respectively to region a, the region b of Fig. 4, region c radiation (with reference to the lighting device 10a on the right side of Fig. 4).In addition, the rule region a that surrounds of the single-point of Fig. 4 is more carried out the irradiation of the warm white of selfluminous device 14.In addition, the region b that the line of the single-point of Fig. 4 and double dot dash line surround is more carried out the irradiation of white naturally of selfluminous device 13.In addition, the region c that the double dot dash line of Fig. 4 and dotted line surround is more carried out the irradiation of the color of sunshine of selfluminous device 11.
Thus, the 1st light source 1a of lighting device 10 irradiates range of exposures S and guarantees MIN lightness (with reference to the lighting device 10a on the right side of Fig. 4) as street lamp.
In addition, when lighting device 10 detects pedestrian H in people's perception detecting sensor portion 3, bright light circuit part 2 makes light-emitting device 12,13,14 bright lights, light-emitting device 12,13,14 conducts and relative the 2nd low light source 1b of the 1st light source 1a phase colour temperature.Irradiate respectively region A, region B, the region C (with reference to the lighting device 10b in the left side of Fig. 4) of Fig. 4 as the light-emitting device 12,14,13 of the 2nd light source 1b.Here, Fig. 4 more carried out the irradiation of the bulb look of selfluminous device 12 by the rule region A that surrounds of single-point.In addition, the region B being surrounded by single-point line and double dot dash line of Fig. 4 is more carried out the irradiation of the warm white of selfluminous device 14.In addition, the region C being surrounded by double dot dash line and dotted line of Fig. 4 is more carried out the irradiation of white naturally of selfluminous device 13.
Thus, the 1st light source 1a and the 2nd light source 1b of lighting device 10 irradiate range of exposures S, and the lightness that makes the light irradiating from light source 1 brightens compared with when thering is no pedestrian H, and makes color temperature step-down.
The lighting device 10 of present embodiment as shown in Figure 5, there is Liang Ge bright light circuit part 2, people's perception detecting sensor portion 3, and color temperature control part 4, above-mentioned Liang Ge bright light circuit part 2 makes light source portion 1 bright light and is connected with outside source power supply etc., this light source portion 1 is at the range of exposures S internal radiation light of regulation, the people in range of exposures S (for example detects at least in above-mentioned people's perception detecting sensor portion 3, pedestrian H) existence, above-mentioned color temperature control part 4 do not detect by this people's perception detecting sensor portion 3 pedestrian H time, what light source portion 1 was irradiated light-operatedly (is for example made as the 1st color temperature, color of sunshine), and, in the time existing of pedestrian H being detected by people's perception detecting sensor portion 3, what light source portion 1 was irradiated light-operatedly than low the 2nd color temperature of above-mentioned the 1st color temperature (is for example made as color temperature, bulb look).
Thus, the lighting device 10 of present embodiment and the lighting device 10 of execution mode 1 are similarly, be not limited only to existence by pedestrian H have or not the lightness of the light irradiating from light source portion 1 is changed, and make the color temperature of the light irradiating from light source portion 1 become with each lightness the spectral distribution that matches of the state of mesopic vision.In addition, in the range of exposures S of light source portion 1 light irradiation of lighting device 10, light source portion 1 become with each lightness under the spectral distribution that matches of the state of mesopic vision.Therefore, the lighting device 10 of present embodiment can further improve the visuality of illumination light under the situation of mesopic vision, and can reduce power consumption.
Claims (2)
1. a lighting device,
Have:
Bright light circuit part, this bright light circuit part makes the light source portion bright light at the range of exposures internal radiation light of regulation;
People's perception detecting sensor portion, the existence of the people in above-mentioned range of exposures at least detects in this people's perception detecting sensor portion; And
Color temperature control part, do not detect by above-mentioned people's perception detecting sensor portion people time, light-operated the 1st color temperature that is made as that this color temperature control part irradiates above-mentioned light source portion, and, in the time existing of people being detected by above-mentioned people's perception detecting sensor portion, this color temperature control part irradiates above-mentioned light source portion is light-operatedly made as the 2nd color temperature that color temperature is lower than above-mentioned the 1st color temperature, and lightness when the existing of above-mentioned people do not detected is brighter
Above-mentioned light source portion at least comprises the 1st light source and the 2nd light source, and above-mentioned the 2nd light source irradiates and the relative low light of light phase colour temperature irradiating from above-mentioned the 1st light source,
Above-mentioned color temperature control part makes the light that above-mentioned light source portion is irradiated become above-mentioned the 2nd color temperature by making the light of above-mentioned the 2nd light source irradiation carry out the 1st output, and, low by above-mentioned the 1st output of light ratio that above-mentioned the 2nd light source is irradiated, and above-mentioned light source portion is irradiated be light-operatedly made as above-mentioned the 1st color temperature
It is characterized in that,
In above-mentioned light source portion, compared with the light irradiating from above-mentioned the 1st light source, the light irradiating from above-mentioned the 2nd light source is lower in the color temperature of the central part side of above-mentioned range of exposures, and, compared with the light irradiating from above-mentioned the 2nd light source, the light irradiating from above-mentioned the 1st light source is higher in the color temperature of the periphery side of above-mentioned range of exposures.
2. lighting device as claimed in claim 1, is characterized in that,
Above-mentioned the 1st light source of above-mentioned light source portion and above-mentioned the 2nd light source respectively from the periphery side of above-mentioned light source portion towards the central portion side of above-mentioned light source portion there is illuminating part that color temperature is high and the illuminating part low with this illuminating part phase colour temperature,
Above-mentioned the 2nd light source disposes the illuminating part low with above-mentioned the 1st light source phase colour temperature from above-mentioned periphery side to the same area of above-mentioned central portion side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010168624A JP2012028272A (en) | 2010-07-27 | 2010-07-27 | Lighting device |
| JP168624/2010 | 2010-07-27 |
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| Publication Number | Publication Date |
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| CN102413603A CN102413603A (en) | 2012-04-11 |
| CN102413603B true CN102413603B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110214206.0A Expired - Fee Related CN102413603B (en) | 2010-07-27 | 2011-07-25 | Lighting device |
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| JP (1) | JP2012028272A (en) |
| CN (1) | CN102413603B (en) |
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| CN102665348B (en) * | 2012-05-10 | 2015-04-29 | 合肥大明节能科技有限公司 | Image-recognition-type street lamp brightness prediction control and maintenance system |
| JP2014010972A (en) * | 2012-06-28 | 2014-01-20 | Inaba Electric Work Co Ltd | Road lamp |
| CN103062665A (en) * | 2013-01-18 | 2013-04-24 | 北京飞亚视科技发展有限公司 | LED module and LED lamp |
| JP2015069719A (en) * | 2013-09-26 | 2015-04-13 | パナソニックＩｐマネジメント株式会社 | Illumination control system |
| CN103953878A (en) * | 2014-04-23 | 2014-07-30 | 苏州工业职业技术学院 | LED (light emitting diode) road lamp with color temperature switching function |
| JP6277521B2 (en) * | 2014-05-19 | 2018-02-14 | パナソニックＩｐマネジメント株式会社 | LIGHTING DEVICE AND LIGHTING DEVICE CONTROL METHOD |
| JP6489522B2 (en) | 2015-03-04 | 2019-03-27 | パナソニックＩｐマネジメント株式会社 | Lighting control apparatus and lighting control method |
| JP6531988B2 (en) * | 2015-10-09 | 2019-06-19 | パナソニックＩｐマネジメント株式会社 | Lighting system and lighting method |
| WO2017177374A1 (en) * | 2016-04-12 | 2017-10-19 | 汤美 | Intelligent illumination early-warning system for campus street lamps |
| JP6778927B2 (en) * | 2016-08-24 | 2020-11-04 | パナソニックＩｐマネジメント株式会社 | Lighting equipment and lighting system |
| WO2018056894A1 (en) * | 2016-09-21 | 2018-03-29 | Unitech Mechatronics Pte Ltd | Thermopile array sensor for motion tracking and its application |
| CN106304510A (en) * | 2016-10-19 | 2017-01-04 | 成都言行果科技有限公司 | A kind of LED street lamp with warning function |
| JP6751224B2 (en) * | 2016-12-26 | 2020-09-02 | 京セラ株式会社 | Nightlight control device, nightlight control system, and nightlight control method |
| JP6790863B2 (en) * | 2017-01-23 | 2020-11-25 | 富士通株式会社 | Street light control system, street light control program and street light control method |
| US10885772B2 (en) | 2017-12-21 | 2021-01-05 | Lumileds Llc | Road lighting |
| US11798406B2 (en) | 2018-03-21 | 2023-10-24 | Lumileds Llc | Road lighting |
| JP7426601B2 (en) | 2019-06-25 | 2024-02-02 | パナソニックＩｐマネジメント株式会社 | lighting system |
| CN114829196B (en) * | 2019-12-27 | 2023-03-24 | 新唐科技日本株式会社 | Light irradiation device and light emitting module |
| JP6941896B1 (en) * | 2020-07-28 | 2021-09-29 | 中譽工業股▲分▼有限公司 | Multi-function lamp and how to use it |
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| CN102413603A (en) | 2012-04-11 |
| JP2012028272A (en) | 2012-02-09 |
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