JP2732782B2 - Automatic dimming lighting system - Google Patents
Automatic dimming lighting systemInfo
- Publication number
- JP2732782B2 JP2732782B2 JP5215086A JP21508693A JP2732782B2 JP 2732782 B2 JP2732782 B2 JP 2732782B2 JP 5215086 A JP5215086 A JP 5215086A JP 21508693 A JP21508693 A JP 21508693A JP 2732782 B2 JP2732782 B2 JP 2732782B2
- Authority
- JP
- Japan
- Prior art keywords
- artificial
- solar cell
- brightness
- illuminator
- automatic dimming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、自動調光照明装置に関
し、詳しくは、自然光の光量の変化に追従させて人工照
明光の光量を自動調節し、自然光照射領域の明るさと人
工照明光照射領域の明るさとの差を是正するもので、特
に、懐の深い廂を有する屋外競技場等に用いて好適なも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic dimming illuminating device, and more particularly to an automatic dimming illuminating device which automatically adjusts the amount of artificial illuminating light so as to follow a change in the amount of natural illuminating light. It corrects the difference between the brightness of the area and the area, and is particularly suitable for use in an outdoor stadium or the like having a deep room.
【０００２】[0002]
【従来の技術】懐の深い廂を有する屋外競技場等では、
自然光が取り入れ難い廂の奥側において人工照明器によ
る照明が必要となる。この場合、廂の奥側における人工
照明器の照明光による明るさの感覚は、廂の無い部分
（屋外側）における自然光による明るさとの差により左
右される。即ち、太陽光の照射により屋外側が充分に明
るい場合には、人工照明器の照明光もそれに応じて明る
さを高める必要があり、逆に、太陽光の照射が充分でな
く屋外側もあまり明るくない場合には、それに応じて、
人工照明器の照明光による明るさも抑えることが必要と
なる。このように人工照明器の調光を行うことにより、
廂の奥側において屋外側と違和感を生じさせない、バラ
ンスのとれた照明環境を実現することができる。このよ
うな目的で使用される人工照明システムでは、照明環境
の明るさを検出するための光センサーが天井から吊り下
げられ、この光センサーが検出した明るさに応じて人工
照明システムの調光が行われていた。2. Description of the Related Art In an outdoor stadium having a deeply-sealed room,
It is necessary to illuminate the interior of the room, where natural light is difficult to take in, with artificial illuminators. In this case, the sense of brightness due to the illumination light of the artificial illuminator on the back side of the room depends on the difference from the brightness due to natural light in a portion without a room (outdoor side). That is, when the outdoor side is sufficiently bright due to the irradiation of sunlight, the illumination light of the artificial illuminator also needs to be increased in brightness accordingly. If not, accordingly
It is necessary to suppress the brightness of the artificial illuminator due to the illumination light. By adjusting the light of the artificial illuminator in this way,
A well-balanced lighting environment that does not cause a sense of incongruity on the back side of the room with the outdoor side can be realized. In an artificial lighting system used for such a purpose, an optical sensor for detecting the brightness of the lighting environment is suspended from the ceiling, and the dimming of the artificial lighting system is adjusted according to the brightness detected by the optical sensor. It was done.
【０００３】一方、照明エネルギの省エネルギ化を図る
ために、所謂太陽電池を用いて、太陽光発電により人工
照明器を点灯させる照明システムがある。このような照
明システムでは、直流で発電された電力を交流に変換す
る変換装置や、天候による発電電力の変動を安定させる
ための蓄電池等が必要であった。On the other hand, there is an illumination system for lighting an artificial illuminator by solar power generation using a so-called solar cell in order to save energy of illumination energy. In such a lighting system, a conversion device for converting power generated by direct current into alternating current, a storage battery for stabilizing fluctuations in generated power due to weather, and the like were required.
【０００４】[0004]
【発明が解決しようとする課題】廂の奥側において屋外
側と違和感を生じさせない、バランスのとれた照明環境
を実現させるためには、廂の奥側における人工照明器に
調光が必要となる。しかしながら、調光設備を設けるこ
とは設備コストを増大させるとともに、これらの設備の
管理コストも発生させることになった。一方、照明エネ
ルギの省エネルギ化等を図る太陽電池を用いた照明シス
テムがあるが、発電電力の変換装置や、供給電源の安定
化を図るための蓄電池等の諸装置を備えなければなら
ず、設備が大掛かりとなるという欠点があった。本発明
は上記状況に鑑みてなされたもので、太陽光の照射の変
化により発電電力が変動する太陽電池の特性を、廂の奥
側において必要となる人工照明器の調光に利用し、複雑
な諸装置を用いずにバランスのとれた照明環境の実現が
可能となる自動調光照明装置を提供し、もって、自動調
光照明装置の設備コストの低減、調光の容易さや省エネ
ルギ化を同時に達成することを目的とする。In order to realize a well-balanced lighting environment that does not cause a sense of incongruity with the outdoor side on the back side of the room, the artificial illuminator on the back side of the room requires dimming. . However, providing the dimming equipment increases the equipment cost, and also causes the management cost of these equipment. On the other hand, there is a lighting system using a solar cell for energy saving of lighting energy and the like. However, it is necessary to provide various devices such as a conversion device for generated power and a storage battery for stabilizing a power supply. There was a drawback that the equipment became large. The present invention has been made in view of the above circumstances, and utilizes the characteristics of a solar cell in which generated power fluctuates due to a change in irradiation of sunlight, for dimming an artificial illuminator required on the back side of the refrigerator, and thereby complicates the present invention. Provide an automatic dimming lighting device that can realize a balanced lighting environment without using various devices, thereby reducing the equipment cost of the automatic dimming lighting device, facilitating dimming and saving energy. It aims to achieve at the same time.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る自動調光照明装置の構成は、自然光と人
工照明光とを併用する建造物に設けられ、自然光の光量
の変化に追従させて人工照明器を調光する自動調光照明
装置であって、太陽光発電を行う太陽電池と人工照明器
とを電源配線を介して直結したことを特徴とするもので
ある。また、自動調光照明装置は、太陽電池に直結され
た人工照明器が自然光の取り入れ難い建造物の奥側の暗
所領域にのみ設けられたことを特徴とするものであって
もよい。さらに、自動調光照明装置は、太陽電池と人工
照明器とを鉛直線上の上下に配置したものであってもよ
い。An automatic dimming lighting apparatus according to the present invention for achieving the above object is provided in a building using both natural light and artificial lighting, and is adapted to change the amount of natural light. An automatic dimming lighting device for dimming an artificial illuminator by following the solar illuminator, wherein a solar cell for performing solar power generation and the artificial illuminator are directly connected via a power supply wiring. The automatic dimming lighting device may be characterized in that an artificial illuminator directly connected to a solar cell is provided only in a dark area on the back side of a building where natural light is hardly taken in. Further, the automatic dimming lighting device may be one in which a solar cell and an artificial illuminator are arranged above and below on a vertical line.
【０００６】[0006]
【作用】太陽光の照射が充分で、屋外側の領域が明るく
なった際には、太陽電池による発電電力が増加し、人工
照明器の照明光の明るさが自然光の明るさに追従して増
して、暗所領域と屋外側の領域との間に明るさの差が無
くなる。また逆に、太陽光の照射が減少すると、これに
伴って太陽電池の発電電力が低下し、人工照明器の照明
光の明るさも自然光の明るさの低下に追従して下がっ
て、暗所領域と屋外側の領域との間に明るさの差が無く
なる。また、太陽電池と人工照明器とが鉛直線上の上下
に配置されれば、人工照明器が取り付けられる位置にお
ける固有の受光状態が反映され、太陽光の部分的な照射
に追従して人工照明器が調光されることになり、照明環
境が屋外の日射状態と同様となる。[Function] When the sunlight is sufficient and the outdoor area becomes brighter, the power generated by the solar cell increases, and the brightness of the illumination light of the artificial illuminator follows the brightness of natural light. In addition, there is no difference in brightness between the dark area and the outdoor area. Conversely, when the irradiation of sunlight decreases, the power generated by the solar cell decreases accordingly, and the brightness of the illumination light of the artificial illuminator also decreases following the decrease in the brightness of natural light. There is no difference in brightness between the outdoor area and the outdoor area. In addition, if the solar cell and the artificial illuminator are arranged above and below on a vertical line, the unique light receiving state at the position where the artificial illuminator is attached is reflected, and the artificial illuminator follows the partial irradiation of sunlight. Is dimmed, and the lighting environment is the same as that of the outdoor sunlight.
【０００７】[0007]
【実施例】以下、本発明に係る自動調光照明装置の好適
な実施例を図面を参照して詳細に説明する。図１は本発
明の自動調光照明装置の概要図、図２は太陽電池と照明
器具との接続状態を表す斜視図である。例えば、懐の深
い廂１を有する屋外競技場３には、自然光が取り入れ難
い廂１の奥側に暗所領域Ｓ1 が存在する。この暗所領域
Ｓ1 は、自然光が取り入れ易い屋外側の領域Ｓ2 とは異
なり、太陽光の照射が充分であってもこの領域は明るく
ならず、屋外側の領域Ｓ2 との間で明暗の差が拡大する
領域となっている。本発明は、このような暗所領域Ｓ1
が存在する建造物の例えば廂１の上部に太陽電池５を敷
設して、この太陽電池５により太陽光の照射を受けて直
流電力を発電するようになっている。一方、暗所領域Ｓ
1 内の廂１の裏側には人工照明器７が取り付けられ、人
工照明器７は太陽電池５と直接に配線接続されている。
つまり、人工照明器７は、太陽電池５により発電された
電力を電源として、直接点灯されるようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic view of an automatic dimming lighting device of the present invention, and FIG. 2 is a perspective view showing a connection state between a solar cell and a lighting fixture. For example, outdoor stadium 3 having a deep-pocketed eaves 1, there is the dark region S 1 on the inner side of the intake hardly eaves 1 natural light. This dark place area S 1 is different from the outdoor area S 2 where natural light can easily be taken in. Even if the sunlight is sufficient, this area does not become bright, and the dark area S 1 is brighter and darker than the outdoor area S 2. Is an area where the difference between the two increases. The present invention provides such a dark place area S 1.
For example, a solar cell 5 is laid on an upper part of a building 1 where a building exists, and the solar cell 5 receives direct sunlight to generate DC power. On the other hand, the dark area S
An artificial illuminator 7 is attached to the back side of the refrigerator 1 in 1, and the artificial illuminator 7 is directly connected to the solar cell 5 by wiring.
That is, the artificial illuminator 7 is directly lit using the electric power generated by the solar cell 5 as a power supply.
【０００８】人工照明器７は、太陽電池５から供給され
る直流発電電力をそのまま入力できる白熱灯、例えばハ
ロゲンランプ等の直流照明器具からなっている。また、
人工照明器７における照明光の明るさと消費電流の電流
特性を、太陽光の照射の変化に伴う太陽電池５の発電特
性と一致させる。つまり、太陽電池５は、太陽光の照射
の変化に伴って、所定の明るさの照明光で人工照明器７
が点灯できるような発電特性を有するものとなってい
る。これにより、太陽光の照射が充分な状態で、屋外側
の領域Ｓ2 が明るい時には、これに伴って人工照明器７
の照明光も明るくなるのである。太陽電池５、人工照明
器７を主な部材として、自動調光照明装置９が構成され
ている。The artificial illuminator 7 is a DC luminaire such as an incandescent lamp, for example, a halogen lamp, which can directly input the DC power supplied from the solar cell 5. Also,
The current characteristics of the brightness of the illumination light and the current consumption of the artificial illuminator 7 are matched with the power generation characteristics of the solar cell 5 due to the change in the irradiation of sunlight. That is, the solar cell 5 emits the artificial illuminator 7 with the illumination light of a predetermined brightness in accordance with the change of the irradiation of the sunlight.
Have a power generation characteristic such that they can be turned on. Thus, in sufficient state irradiation of sunlight, when the area S 2 of the outdoor side is bright, artificial illuminator in accordance with this 7
The illumination light becomes brighter. An automatic dimming lighting device 9 is constituted by using a solar cell 5 and an artificial lighting device 7 as main members.
【０００９】このように構成される自動調光照明装置９
において、太陽光の照射が充分であり、屋外領域、及び
自然光が取り入れ易い屋外側の領域Ｓ2 が充分に明るく
なった際には、太陽電池５においても太陽光による充分
な照射が行われ、発電電力が増加して人工照明器７の照
明光の明るさが自然光の明るさに追従して増して、暗所
領域Ｓ1 と屋外側の領域Ｓ2 との間に明るさの差が無く
なることになる。また、この逆に、太陽光の照射が減少
すると、屋外領域、及び屋外側の領域Ｓ2 の明るさが下
がり、これに伴って太陽電池５の発電電力が低下するこ
とにより、人工照明器７の照明光の明るさも自然光の明
るさの低下に追従して下がって、暗所領域Ｓ1 と屋外側
の領域Ｓ2 との間に明るさの差が無くなるのである。こ
れにより、複雑な調光装置を用いることなく、自然光の
明るさに追従して人工照明器７を調光することが可能と
なる。[0009] The automatic dimming lighting device 9 configured as described above.
In a sufficient irradiation of sunlight, outdoor area, and when the area S 2 of the natural light introduced easily outdoor side becomes sufficiently bright, sufficient irradiation is performed even by the sunlight in the solar cell 5, generated power is increased by increasing following the brightness of the brightness of natural light of the illumination light of the artificial lighting unit 7, there is no brightness difference between the area S 2 of the dark region S 1 and the outdoor-side Will be. Further, in the contrary, when the irradiation of the sunlight is reduced, outdoor area, and the brightness of the outdoor side of the region S 2 is lowered, by the power generated by the solar battery 5 is reduced along with this, artificial illuminator 7 the brightness of the illumination light even down to follow the lowering of the brightness of natural light, than the difference in brightness is eliminated is between the area S 2 of the dark region S 1 and the outdoor side. This makes it possible to adjust the brightness of the artificial illuminator 7 by following the brightness of natural light without using a complicated dimmer.
【００１０】なお、このように構成される自動調光照明
装置９は、人工照明器７を暗所領域Ｓ1 に限らず、屋外
側の領域Ｓ2 に設けるものであってもよい（図中破線部
参照）。そして、人工照明器７を廂１から奥側に向かう
に従って徐々に数を増して設ければ、廂１の先端側から
奥側にかけて段階的に人工照明器７の照明光の明るさを
増して照明されることになり、廂１から奥側に向かうに
従って暗くなるようなことがなく自然光と人工照明光と
を併せてほぼ一定の明るさで照明できることになり、明
るさの違和感を無くすことができる。[0010] Incidentally, thus configured automatic light illumination device 9 is not limited to artificial lighting unit 7 to the dark region S 1, it may be those provided in an area S 2 of the outdoor side (in the drawing (See the broken line). If the artificial illuminator 7 is provided with a gradually increasing number as it goes from the room 1 to the back side, the brightness of the illumination light of the artificial illuminator 7 is increased stepwise from the tip side to the back side of the room 1. It will be illuminated, and it will be possible to illuminate with natural light and artificial illumination light at almost constant brightness without darkening from the room 1 to the back side, eliminating the discomfort of brightness it can.
【００１１】また、自動調光照明装置９は、図２に示す
ように、人工照明器７と太陽電池５を鉛直方向で一致さ
せて配置したものであってもよい。この場合、太陽電池
５は、できる限り少ない面積で所要電力が発電できるも
のとする。つまり、人工照明器７が取り付けられている
位置における固有の受光状態が反映できるものとするこ
とが望ましい。このような構成とすれば、太陽光の部分
的な照射に追従して個々の人工照明器７が調光されるこ
とになる。即ち、雲の流れ等により、日射が得られる部
分と日射が遮られた部分とで、屋外の日射状態と同様に
明るさを変化させることができ、より自然な照明環境を
実現することができるようになる。Further, as shown in FIG. 2, the automatic dimming lighting device 9 may be a device in which the artificial illuminator 7 and the solar cell 5 are vertically aligned. In this case, it is assumed that the solar cell 5 can generate required electric power with as small an area as possible. That is, it is desirable that the unique light receiving state at the position where the artificial illuminator 7 is attached can be reflected. With such a configuration, each artificial illuminator 7 is dimmed following partial irradiation of sunlight. That is, the brightness can be changed between the part where the solar radiation is obtained and the part where the solar radiation is blocked due to the flow of clouds and the like, similarly to the outdoor solar radiation state, and a more natural lighting environment can be realized. Become like
【００１２】なお、上述の実施例では、廂１を有した屋
外競技場３を例に説明したが、本発明に係る自動調光照
明装置９は、自然光と人工照明光とを併用するような建
造物において、自然光に追従して人工照明器７を調光す
る場合のすべてに応用することができ、例えば、ドー
ム、エアターミナル等に用いられてもよい。In the above-described embodiment, the outdoor stadium 3 having the refrigerator 1 has been described as an example. However, the automatic dimming lighting device 9 according to the present invention is designed to use both natural light and artificial lighting. In a building, it can be applied to all cases where the artificial illuminator 7 is dimmed following natural light, and may be used for a dome, an air terminal, or the like.
【００１３】[0013]
【発明の効果】以上詳細に説明したように、本発明に係
る自動調光照明装置によれば、人工照明器を太陽電池に
直結して暗所領域に設けたので、人工照明器の照明光の
明るさが自然光の明るさに追従して調光され、複雑な装
置を用いずにバランスのとれた照明環境の実現が可能と
なり、その結果、自動調光照明装置の設備コストの低
減、調光の容易さや省エネルギ化を同時に達成すること
ができる。また、太陽電池と人工照明器とを鉛直線上の
上下に配置すれば、人工照明器が取り付けられる位置に
おける固有の受光状態が反映され、太陽光の部分的な照
射に追従して個々の人工照明器を調光することができ、
よりキメの細かな調光が可能となる。As described above in detail, according to the automatic dimming lighting device according to the present invention, the artificial illuminator is directly connected to the solar cell and provided in the dark area, so that the illumination light of the artificial illuminator is provided. The brightness of the lighting is adjusted to follow the brightness of natural light, and a balanced lighting environment can be realized without using complicated devices. Ease of light and energy saving can be achieved at the same time. In addition, if the solar cell and the artificial illuminator are arranged above and below on a vertical line, the unique light receiving state at the position where the artificial illuminator is attached is reflected, and the individual artificial illuminator follows the partial irradiation of sunlight. Can dimming the vessel,
Finer light control is possible.
【図１】本発明の自動調光照明装置の概要図である。FIG. 1 is a schematic diagram of an automatic dimming lighting device of the present invention.
【図２】太陽電池と照明器具との接続状態を表す斜視図
である。FIG. 2 is a perspective view illustrating a connection state between a solar cell and a lighting device.
５ 太陽電池 ７ 人工照明器 ９ 自動調光照明装置 Ｓ1 暗所領域5 solar cells 7 artificial illuminator 9 automatic light illumination apparatus S 1 dark area
フロントページの続き (56)参考文献 特開 昭59−180992（ＪＰ，Ａ) 実開 昭60−103850（ＪＰ，Ｕ) 実開 昭60−147020（ＪＰ，Ｕ)Continuation of the front page (56) References JP-A-59-180992 (JP, A) JP-A-60-103850 (JP, U) JP-A-60-147020 (JP, U)
Claims (3)
に設けられ、自然光の光量の変化に追従させて人工照明
器を調光する自動調光照明装置であって、 太陽光発電を行う太陽電池と前記人工照明器とを電源配
線を介して直結したことを特徴とする自動調光照明装
置。1. An automatic dimming illumination device provided in a building that uses both natural light and artificial illumination light to diminish an artificial illuminator by following a change in the amount of natural light, and performs solar power generation. An automatic dimming lighting device, wherein a solar cell and the artificial illuminator are directly connected via a power supply wiring.
自然光の取り入れ難い前記建造物の奥側の暗所領域にの
み設けられたことを特徴とする請求項１記載の自動調光
照明装置。2. The automatic dimming lighting device according to claim 1, wherein the artificial illuminator directly connected to a solar cell is provided only in a dark area on the back side of the building where natural light is hardly taken in. .
線上の上下に配置したことを特徴とする請求項１又は請
求項２記載の自動調光照明装置。3. The automatic dimming lighting device according to claim 1, wherein the solar cell and the artificial illuminator are arranged vertically on a vertical line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5215086A JP2732782B2 (en) | 1993-08-06 | 1993-08-06 | Automatic dimming lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5215086A JP2732782B2 (en) | 1993-08-06 | 1993-08-06 | Automatic dimming lighting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0757877A JPH0757877A (en) | 1995-03-03 |
| JP2732782B2 true JP2732782B2 (en) | 1998-03-30 |
Family
ID=16666524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5215086A Expired - Fee Related JP2732782B2 (en) | 1993-08-06 | 1993-08-06 | Automatic dimming lighting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2732782B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5195724B2 (en) * | 2009-11-18 | 2013-05-15 | 積水ハウス株式会社 | Natural light tracking LED lighting device. |
| JP6168643B2 (en) * | 2012-02-29 | 2017-07-26 | サンコネックス株式会社 | Lighting system |
| JP6029924B2 (en) * | 2012-10-18 | 2016-11-24 | サンコネックス株式会社 | Lighting system |
-
1993
- 1993-08-06 JP JP5215086A patent/JP2732782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0757877A (en) | 1995-03-03 |
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