CN103672550A - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN103672550A CN103672550A CN201310388236.2A CN201310388236A CN103672550A CN 103672550 A CN103672550 A CN 103672550A CN 201310388236 A CN201310388236 A CN 201310388236A CN 103672550 A CN103672550 A CN 103672550A
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Abstract
The invention provides a lighting device allowing a user to identify positions of high illumination on a desk surface easily, i.e., a proper application scope. A table lamp (1) provided by the invention is provided with an illuminating LED (16) used as a first light source installed on a lamp (6) and a first operation part (7) for lighting operation of the illuminating LED. The table lamp (1) is provided with an indicating LED (25) used as a second light source. The indicating LED (25) irradiates light (L2) to an irradiation scope with high illumination irradiated by light (L1) emitted from the illuminating LED (16), i.e., a proper application scope, so that the user can easily identify the proper application scope by observing the irradiation positions of the indicating LED (25).
Description
Technical field
The present invention relates to lighting device, relate in particular to the upper lighting devices such as desk lamp that use of table.
Background technology
In prior art, as this lighting device, known following device for example, it has arm body, is located at the light fixture of this arm body end, is installed on the light source in this light fixture, by this light source, distinguishes that illumination above desk is (for example, with reference to patent documentation 1.)。
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2006-244929 communique
While using this lighting device on desk, user always can subconsciously be adjusted to which illumination high, be comparatively suitable position on using.Especially the situation that user is children is all the more so.And if user is when being positioned over book or notebook position that illumination is low and continuing to learn or read, will increase user by an eye burden.
Summary of the invention
The present invention proposes in view of addressing the above problem, and object is to provide a kind of and can allows user be easy to position that on identification desktop, illumination is high, is the lighting device of the suitable scope of application.
The lighting device of the solution of the present invention 1 comprises: the light fixture with the first light source; For carrying out the operating portion of the operation of lighting a lamp of above-mentioned the first light source, it is characterized in that, be provided with secondary light source, this secondary light source is to the high scope of the illumination of the range of exposures of above-mentioned the first light source, by irradiation in the scope narrower than the range of exposures of this first light source.
In addition, the lighting device of the solution of the present invention 2, on the basis of scheme 1, is characterized in that, above-mentioned secondary light source is arranged in above-mentioned light fixture.
In addition, the lighting device of the solution of the present invention 3, on the basis of scheme 1 or 2, is characterized in that, above-mentioned the first light source and secondary light source are set to mutually different photochromic.
In addition, the lighting device of the solution of the present invention 4, in scheme 1～3, on the basis of any one, it is characterized in that, have for carry out above-mentioned the first light source light a lamp operation the first operating portion and for carry out above-mentioned secondary light source light a lamp operation the second operating portion.
The lighting device of the solution of the present invention 5 on the basis of any one, is characterized in that in scheme 1～4, has for light the lamp circuit of above-mentioned secondary light source and the timing unit of turning off the light for the above-mentioned secondary light source after making to light after the stipulated time.
Invention effect of the present invention is as follows.
According to lighting device described in the present invention program 1, according to said structure, in the range of exposures of above-mentioned the first light source, because can be to indicate the mode of high illumination range, above-mentioned secondary light source irradiates light to this high illumination range, so, the indicating range based on this secondary light source, can be easy to pick out the high illumination range of above-mentioned the first light source, i.e. the suitable scope of application.
In addition, by above-mentioned secondary light source is set in above-mentioned light fixture, even if this light fixture moves change orientation, also can suppress the deviation between the indicated scope of the high illumination range of above-mentioned the first light source and above-mentioned secondary light source.
In addition, by above-mentioned the first light source and secondary light source, be set to mutually different photochromic, thereby in the range of exposures of above-mentioned the first light source, can allow user recognize more clearly the indicated scope of above-mentioned secondary light source.
In addition, by have for carry out above-mentioned the first light source light a lamp operation the first operating portion and for carry out above-mentioned secondary light source light a lamp operation the second operating portion, even if thereby move above-mentioned light fixture and change its direction when lighting at above-mentioned the first light source, by operating above-mentioned the second operating portion, light above-mentioned secondary light source, user also can be known the applicable scope of application.
And, by being provided for lighting the lamp circuit of above-mentioned secondary light source and the timing unit through turning off the light after the stipulated time for the above-mentioned secondary light source after making to light a lamp, thereby can be after the such object of the suitable scope of application be known in realization, any operation needn't be appended, above-mentioned lighting device can be continued to use.
Accompanying drawing explanation
Fig. 1 means the front view of the lighting device of the first embodiment of the present invention.
Fig. 2 means the A-A cutaway view of the lighting device of the first embodiment of the present invention.
Fig. 3 means the amplification view of major part of Fig. 2 of the lighting device of the first embodiment of the present invention.
Fig. 4 means the side view of the lighting device of the first embodiment of the present invention.
Fig. 5 means the block diagram of circuit of the lighting device of the first embodiment of the present invention.
Fig. 6 means the general profile chart of major part of the lighting device of the second embodiment of the present invention.
Fig. 7 means the summary ground plan of major part of the lighting device of the 3rd embodiment of the present invention.
In figure:
1-desk lamp (lighting device), 6-light fixture, 7-the first operating portion (operating portion), 8-the second operating portion, 16,45,54-illuminating LED (the first light source), 25,46,55-LED (secondary light source) for indication, 30-second point circuit for lamp (lamp circuit), 31-timing unit, L1～L6-light.
The specific embodiment
Below with reference to Fig. 1, to Fig. 5, the first embodiment of the present invention is described.In Fig. 2, the left side of drawing is front.Symbol 1 is the desk lamp as lighting device.This desk lamp 1 has: pedestal 2, bottom are installed on the arm 4 of columnar part 3 on this pedestal 2, upper end that bottom is movably installed on this columnar part 3, the head 5 of upper end that is movably installed on this arm 4 and the light fixture 6 that is movably installed on this head 5.In addition, the face side in above-mentioned columnar part 3 is provided with the first operating portion 7 and the second operating portion 8.In addition, in the inside of above-mentioned columnar part 3, be provided with electronic circuit 9.
Above-mentioned light fixture 6 has shell body 11 and light penetrating object 12.Above-mentioned shell body 11 consists of upper case body 13 and lower case body 14.In addition, in the periphery of above-mentioned shell body 11, be provided with and there is flexible ring body 15, to cover the junction surface of above-mentioned upper case body 13 and above-mentioned lower case body 14.In addition, this ring body 15 is formed by silicon rubber, and is releasably installed on above-mentioned shell body 11.In addition, in the inside of above-mentioned light fixture 6, be provided with a plurality of illuminating LEDs 16 as the first light source.In addition, above-mentioned illuminating LED 16 is a row ground and is installed on side by side on metal substrate 17.In addition, this metal substrate 17 is thermally coupled on radiator 18.In addition, in the irradiation side of above-mentioned illuminating LED 16, be provided with the light conductor 19 being formed by transparent material.Further, these light conductor 19 its tops are reflected body 20 coverings.
Below above-mentioned light conductor 19 is described in detail.This light conductor 19 is formed by transparent acrylic resin.In above-mentioned light conductor 19 structures, have relative with above-mentioned illuminating LED 16 to the plane of incidence 21, the scattered light in the light L1 penetrating at above-mentioned illuminating LED 16 is adjusted into the flexure plane 22 of directional light, the reflecting surface 23 that light L1 is reflected along prescribed direction and the light L1 by these reflecting surface 23 reflections is penetrated to the exit facet 24 outside above-mentioned light conductor 19.
Rear positions in the left and right directions central authorities of above-mentioned light fixture 6, is provided with an indication LED25 as secondary light source.In addition this indication LED25 and above-mentioned illuminating LED 16 photochromic difference each other.In the present embodiment, above-mentioned illuminating LED 16 sends the light of white in daytime, daylight look or bulb look, and above-mentioned indication is sent orange light with LED25.In addition, in above-mentioned indication, by the exiting side of LED25, be provided with lens 26.But, due to the directive property of above-mentioned indication with LED25, so be not that lens 26 must be set.In addition, above-mentioned indication is held in described light fixture 6 by LED holding member 27 with LED25.In addition, above-mentioned indication keeps certain angle of inclination with LED25 by above-mentioned LED holding member 27.And in the present embodiment, this angle initialization is opposite planar approximately 35 degree angles.This angle is predefined, and it makes lighting above-mentioned indication while using LED25, and in the range of exposures of the light L1 penetrating at above-mentioned illuminating LED 16, above-mentioned indication indicates with the light L2 that LED25 penetrates the scope that illumination is high.Wherein, this angle should rationally determine with the position relationship of LED25 etc. according to the range of exposures of the height of above-mentioned light fixture 6, above-mentioned illuminating LED 16 and direction of illumination and above-mentioned illuminating LED 16 and indication.
Above-mentioned electronic circuit 9 has control circuit 28, the first lamp circuit 29, second point circuit for lamp 30 and timing unit 31.Above-mentioned the first lamp circuit 29 is for lighting above-mentioned illuminating LED 16.And above-mentioned second point circuit for lamp 30 is for lighting above-mentioned indication LED25.Further, above-mentioned second point circuit for lamp that above-mentioned timing unit 31 is worked according to the operation of above-mentioned the second operating portion 8 30 starts operation, above-mentioned indication with LED25 after being illuminated to through the stipulated time, this indication is turned off with LED25.In addition, by AC adapter 32, in above-mentioned electronic circuit 9, supply with DC current.
Effect for present embodiment below describes.Above-mentioned desk lamp 1 is under the state being positioned on desk, and prior with not shown AC power is connected.First, user operates above-mentioned the first operating portion 7 being arranged in above-mentioned columnar part 3.When this first operating portion 7 of operation, above-mentioned control circuit 28 provides electric power to above-mentioned the first lamp circuit 29.Accordingly, luminous thereby the above-mentioned illuminating LED 16 arranging in above-mentioned light fixture 6 is supplied with electric power by above-mentioned the first lamp circuit 29.Now, the heat producing due to above-mentioned illuminating LED 16 energisings shifts to above-mentioned radiator 18 via said metal substrates 17, and the outside from this radiator 18 to above-mentioned light fixture 6 leaves.
The light L1 that above-mentioned illuminating LED 16 penetrates injects above-mentioned light conductor 19 from the above-mentioned plane of incidence 21.Then, in the light L1 penetrating at above-mentioned illuminating LED 16, as the part of directional light, on the reflecting surface 23 of above-mentioned light conductor 19, carry out primary event.In addition,, the light L1 penetrating from above-mentioned illuminating LED 16, as the part of scattered light, on the flexure plane 22 of above-mentioned light conductor 19, carry out primary event and after being adjusted into directional light, on the reflecting surface 23 of above-mentioned light conductor 19, carry out secondary reflection.Then, on above-mentioned reflecting surface 23, the light L1 of reflection all penetrates downwards with the angle of regulation, on above-mentioned outgoing plane 24, from above-mentioned light conductor 19, penetrates.
In addition, in above-mentioned light conductor 19, repeating through after several times reflections, may penetrate light L1 from the face outside above-mentioned outgoing plane 24.Yet instant such light L1 penetrates from the face outside above-mentioned exit facet 24, light L1 also can return in above-mentioned light conductor 19 by above-mentioned reflector 20 reflections.And the light L1 that returns to this light conductor 19 finally penetrates from above-mentioned exit facet 24.Like this, the light L1 penetrating from above-mentioned illuminating LED 16, by adopting above-mentioned light conductor 19 and above-mentioned reflector 20, penetrates from above-mentioned light penetrating object 12 with regard to the same with area source in fact, thereby extensively irradiates to scope the D above of desk.
Below user is operated and described being located at above-mentioned second operating portion 8 of above-mentioned columnar part 3.If operate this second operating portion 8, above-mentioned control circuit 28 is supplied with electric power to above-mentioned second point circuit for lamp 30.Meanwhile, above-mentioned control circuit 28 starts above-mentioned timing unit 31 and starts timing.Accordingly, be located at the above-mentioned indication LED25 of the left and right directions central rear of above-mentioned light fixture 6, by providing electric power from above-mentioned second point circuit for lamp 30, thus luminous.In addition, operation along with above-mentioned the second operating portion 8, above-mentioned control circuit 28 with in the lighting a lamp of LED25, is reduced to when conventionally lighting a lamp low mode so that be supplied to the current value of above-mentioned illuminating LED 16 in above-mentioned indication, and above-mentioned the first lamp circuit 29 is controlled.Like this, the light L1 modulated light penetrating from above-mentioned illuminating LED 16 is the illumination step-down of D above desktop when conventionally lighting a lamp.Accordingly, even if user is in above-mentioned illuminating LED 16 is lit a lamp, also can recognize reliably the indicated scope of LED25 for above-mentioned indication.
As mentioned above, by with the emitting side of LED25, said lens 26 being set in above-mentioned indication, by these lens 26, from above-mentioned indication, with the light L2 that LED25 penetrates, being diameter is that the circular light spot shape of 4cm left and right irradiates in desktop D.In addition the position that the above-mentioned indication above desk on D is irradiated with the light L2 that LED25 penetrates, the high scope of illumination in the range of exposures of the light L1 indicating in above-mentioned illuminating LED 16 ejaculations.For example, in the present embodiment, above-mentioned arm 4 is forwards tilted in 35 degree, above-mentioned light fixture 6 roughly in horizontal direction, and, in the left and right directions that makes this light fixture 6 occasion consistent with the left and right directions of said base 2, the left and right directions centre of the range of exposures of D and from the position in the about 15cm of leading edge the place ahead of said base 2 above desk, is the position that illumination is the highest.That is, the region centered by this position becomes high illumination range, i.e. the suitable scope of application of user.And, from above-mentioned indication, with the light L2 that LED25 penetrates, indicate above-mentioned high illumination range.Like this, the high illumination range in above-mentioned illuminating LED 16 ranges of exposures, because illustrate with LED25 by above-mentioned indication, so user is the irradiation position with LED25 based on above-mentioned indication, can be easy to the suitable scope of application of identification.
In addition, as above-mentioned, be independently provided for respectively carrying out above-mentioned illuminating LED 16 the operation of lighting a lamp above-mentioned the first operating portion 7 and for carrying out above-mentioned second operating portion 8 of lighting a lamp and operating of LED25 for above-mentioned indication.Like this, regardless of above-mentioned illuminating LED 16, be to light a lamp or be to turn off the light, can above-mentioned indication be lighted with LED25 by operating above-mentioned the second operating portion 8.Therefore, whether the range of exposures that user not only can the above-mentioned illuminating LED 16 of identification is that high illumination range is the suitable scope of application, and before lighting above-mentioned illuminating LED 16, knows in advance which place is high illumination range.On the contrary, user indicates under the state of high illumination range at above-mentioned the second operating portion 8 of operation, can also pass through mobile above-mentioned light fixture 6, thereby the position arbitrarily of D is as high illumination range (the suitable scope of application) above desk.
In addition in the present embodiment, from above-mentioned indication, with the light L2 that LED25 penetrates, be orange light.On the other hand, the light L1 that above-mentioned illuminating LED 16 penetrates photochromic is the light of daytime white, daylight look, electric ball look etc.That is, above-mentioned illuminating LED 16 and above-mentioned indication are set as penetrating not homochromy light with LED25.Like this, by wide scope, irradiate the above-mentioned illuminating LED 16 of D above desk and indicate the above-mentioned indication LED25 of the high illumination range (the suitable scope of application) of the range of exposures of this illuminating LED 16, penetrate the light of mutual different colours, even thereby lighting above-mentioned illuminating LED 16 and above-mentioned indication LED25 simultaneously, user also can pick out the indicated scope of LED25 for above-mentioned indication reliably.Further, by making both illuminant colours different, even if compare above-mentioned illuminating LED 16, reduce the output of LED25 for above-mentioned indication, light at the same time above-mentioned illuminating LED 16 and above-mentioned indication while use LED25, user also can pick out the indicated scope of above-mentioned indication use LED25 reliably.
In addition, if above-mentioned timing unit 31 finishes the timing of stipulated time, above-mentioned control circuit 28 stops providing electric current to above-mentioned second point circuit for lamp 30.Meanwhile, control above-mentioned the first lamp circuit 29, current value when above-mentioned control circuit 28 is lit a lamp to above-mentioned illuminating LED 16 supply routines.Like this, by this operation of lighting a lamp, above-mentioned indication realizes the object of user being indicated to the suitable scope of application with LED25, and afterwards, without additional any operation, above-mentioned desk lamp 1 can continue use, and can prevent that above-mentioned indication from wasting electric power with LED25.In the present embodiment, above-mentioned timing unit 31 is set as 5 seconds by the time of timing.
Below with reference to Fig. 6, the second embodiment of the present invention is described.In addition, present embodiment only describes the surface structure of major part, and the description thereof will be omitted for other dependency structures.The light fixture of present embodiment has light conductor 41.This light conductor 41 has the plane of incidence 42 and exit facet 43.In addition, in above-mentioned light conductor 41, towards front lower place to being formed obliquely through hole 44.And the lower end 44A of this through hole 44 forms and surrounds above-mentioned outgoing plane 43.In addition, in the present embodiment, although be provided with through hole 44 in above-mentioned light conductor 41,, can be formed with bottom outlet to replace through hole 44, this has the bottom of bottom outlet that collector lens can also be set.And, relative to ground with the above-mentioned plane of incidence 42, on metal substrate 17, install and a plurality of illuminating LEDs 45 are set using as the first light source.In addition,, according to the mode of inserting above-mentioned through hole 44, indication is set and with LED46, usings as secondary light source.This indication is used and is pointed to the little LED in angle with LED46.In addition, the same with the first embodiment, the color of the light L4 that the color of the light L3 that above-mentioned illuminating LED 45 penetrates penetrates with LED46 with above-mentioned indication is different.And above-mentioned through hole 44 its central axis are positioned at the range of exposures of the light L3 that above-mentioned illuminating LED 45 penetrates, forming by high illumination range is the position of the suitable scope of application.That is the above-mentioned indication of, installing on above-mentioned through hole 44 uses the optical axis of LED46 by the above-mentioned suitable scope of application.Therefore, from above-mentioned indication, with the light L4 that LED46 penetrates, indicate the above-mentioned suitable scope of application.In addition, in the occasion of present embodiment, because be provided with by the mode of the optical axis of LED46 the outgoing plane 43 that penetrates light L3 to surround above-mentioned indication, so, even if be provided with above-mentioned illuminating LED 45 and indication by the direction of the light fixture of LED46 or highly change, also can suppress by the indicated scope of LED46 and the generation of the deviation between the above-mentioned suitable scope of application for above-mentioned indication.In addition, due to other effect and the first embodiment identical of present embodiment, so the description thereof will be omitted.
Below with reference to Fig. 7, the 3rd embodiment of the present invention is described.Present embodiment is the same with the second embodiment, only the surface structure of its major part is described below, and omits the related description of other structures.The light fixture of present embodiment has light conductor 51.This light conductor 51 has the plane of incidence 52 and exit facet 53.In addition, the relatively above-mentioned plane of incidence 52, installs and is arranged on metal substrate 17 with LED55 as the even number illuminating LED 54 of the first light source with as the indication of secondary light source.This indication is used than above-mentioned illuminating LED 54 and is pointed to the narrower LED in angle with LED55.In addition, the same with the respective embodiments described above, the color of the light L6 that the color of the light L5 that above-mentioned illuminating LED 54 penetrates penetrates with LED55 with above-mentioned indication is different.In addition, above-mentioned illuminating LED 54 is uniformly-spaced arranged at left and right directions each other.On the other hand, above-mentioned indication is positioned at above-mentioned illuminating LED 54 with LED55, and the centre position that is positioned at the LED54A of central portion is the center of the arrangement of above-mentioned illuminating LED 54.In addition, the optical axis of above-mentioned illuminating LED 54 is parallel with the optical axis of LED55 with above-mentioned indication.Therefore the optical axis of the light L6 that the optical axis of the light L5 that, sends and penetrate from above-mentioned outgoing plane 53 from above-mentioned illuminating LED 54 penetrates with LED55 with from above-mentioned indication and penetrates from above-mentioned outgoing plane 53 is also parallel.In addition, the optical axis of the light L6 that penetrates with LED55 from above-mentioned indication and penetrate from above-mentioned outgoing plane 53 is positioned at the scope of irradiating from the light L3 of above-mentioned illuminating LED 54 ejaculations, by high illumination range, is the suitable scope of application.Further, as mentioned above, indication uses the sensing angle of LED55 because of narrower than the sensing angle of above-mentioned illuminating LED 54, so, the range of exposures of the fore-and-aft direction of the light L6 penetrating from above-mentioned outgoing plane, narrower than the range of exposures of the fore-and-aft direction of light L5.Therefore, above-mentioned indication indicates the above-mentioned suitable scope of application with the light L6 that LED55 penetrates.In addition, in the occasion of present embodiment, above-mentioned illuminating LED 54 is parallel with the optical axis of LED55 with indication, and, by common above-mentioned light conductor 51, penetrate light L5, L6, so, even if be provided with above-mentioned illuminating LED 54, change with the direction of the light fixture of LED55 and height with indication, also can suppress above-mentioned indication with producing deviation between the indicated scope of LED55 and the above-mentioned applicable scope of application.In addition, the effect of other of present embodiment is identical with the first embodiment, so the description thereof will be omitted.
The present invention is not limited only to, among above embodiment, in the scope that does not depart from aim of the present invention, can make various distortion.For example, in the respective embodiments described above, although illustrative, be a plurality of illuminating LEDs to be set as the first light source, an indication is set uses LED as secondary light source, but, also can be provided as one to one respectively the illuminating LED of the first light source and as the indication LED of secondary light source, or arrange respectively a plurality of also passable.In addition, in above-mentioned embodiment, although the independent setting respectively of the first light source and secondary light source, also can be by the some secondary light sources that is also used as in the first light source.In addition, although that use with LED as the indication of above-mentioned secondary light source is the LED that sends orange-colored light,, as long as allow the color of can the above-mentioned secondary light source of the clear and definite identification indicated scope of user, no matter be which kind of color.In addition, in the first embodiment, although be provided with the first operating portion and the second operating portion, also they can be united two into one is an operating portion.Now, whenever carrying out once-through operation to operating portion, user can make the first light source light a lamp or turn off the light, or, by long, by operating portion, can make secondary light source light a lamp.In addition, each light source is the first light source especially, can adopt the light-emitting component outside LED, such as fluorescent lamp or EL fluorescent element etc.Further, the desk lamp that lighting device of the present invention is not limited only to use on desk, also can be used as other various lighting devices, for example, and can also be as the lighting device of installing in advance on learning machine or medical lighting device etc.
Claims (5)
1. a lighting device, it comprises: the light fixture with the first light source; For carrying out the operating portion of the operation of lighting a lamp of above-mentioned the first light source, above-mentioned lighting device is characterised in that,
Be provided with secondary light source, this secondary light source is to the high scope of the illumination of the range of exposures of above-mentioned the first light source, by irradiation in the scope narrower than the range of exposures of this first light source.
2. lighting device as claimed in claim 1, is characterized in that,
Above-mentioned secondary light source is arranged in above-mentioned light fixture.
3. lighting device as claimed in claim 1 or 2, is characterized in that,
Above-mentioned the first light source and secondary light source are set to mutually different photochromic.
4. lighting device as described in any one in claim 1～3, is characterized in that,
Have for carry out above-mentioned the first light source light a lamp operation the first operating portion and for carry out above-mentioned secondary light source light a lamp operation the second operating portion.
5. lighting device as described in any one in claim 1～4, is characterized in that,
Have for light the lamp circuit of above-mentioned secondary light source and the timing unit of turning off the light for the above-mentioned secondary light source after making to light after the stipulated time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-195583 | 2012-09-05 | ||
| JP2012195583A JP2014053110A (en) | 2012-09-05 | 2012-09-05 | Luminaire device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103672550A true CN103672550A (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388236.2A Pending CN103672550A (en) | 2012-09-05 | 2013-08-30 | Lighting device |
Country Status (2)
| Country | Link |
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| JP (1) | JP2014053110A (en) |
| CN (1) | CN103672550A (en) |
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| CN104456263A (en) * | 2014-12-09 | 2015-03-25 | 深圳市欣欣视觉医疗科技有限公司 | Table lamp |
| CN104654098A (en) * | 2014-12-09 | 2015-05-27 | 深圳市欣欣视觉医疗科技有限公司 | Table lamp |
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| CN101627663A (en) * | 2007-02-01 | 2010-01-13 | 皇家飞利浦电子股份有限公司 | Controllable lighting system, pointing device therefore and method of lighting control |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014053110A (en) | 2014-03-20 |
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