JPH08199513A - Lighted marker - Google Patents
Lighted markerInfo
- Publication number
- JPH08199513A JPH08199513A JP7011587A JP1158795A JPH08199513A JP H08199513 A JPH08199513 A JP H08199513A JP 7011587 A JP7011587 A JP 7011587A JP 1158795 A JP1158795 A JP 1158795A JP H08199513 A JPH08199513 A JP H08199513A
- Authority
- JP
- Japan
- Prior art keywords
- light
- solar cell
- light emitting
- transparent
- emitting element
- 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.)
- Pending
Links
Landscapes
- Road Signs Or Road Markings (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば工事現場の周
辺に配備され、夜間での位置表示に用いられる発光標識
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminescent sign device which is provided, for example, around a construction site and is used for position indication at night.
【０００２】[0002]
【従来の技術】周知のように、工事現場、危険区域等に
おいては、発光する標識が配備されており、夜間であっ
ても、一般の人々が識別できるようにしている。2. Description of the Related Art As is well known, a sign that emits light is provided at a construction site, a dangerous area, or the like so that ordinary people can identify it even at night.
【０００３】この種の標識としては、例えば電燈の後方
に反射板を設けるとともに、電燈の前方に色付きのガラ
ス板または色付きの透明プラスチック板を設けたものが
ある。この色付きの透明板は、小さなレンズ状の凹凸が
全面に形成されており、これにより透明板の全面が一様
に発光した。An example of this type of sign is one in which a reflector is provided behind the electric lamp and a colored glass plate or a colored transparent plastic plate is provided in front of the electric lamp. The colored transparent plate had small lens-like irregularities formed on the entire surface, and as a result, the entire surface of the transparent plate uniformly emitted light.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の標識では、色付きの透明板の全面にレンズ状の凹凸
を形成しているものの、その全面が一様に発光している
とは必ずしも言えなかった。However, in the above-mentioned conventional sign, although the lens-shaped unevenness is formed on the entire surface of the colored transparent plate, it cannot be said that the entire surface uniformly emits light. It was
【０００５】また、このような標識は、野外に設置さ
れ、風雨に晒されるので、耐候性を要求されるが、簡単
な構造で十分な耐候性を有するものはなく、そのような
ものが望まれていた。Further, since such a sign is installed outdoors and exposed to wind and rain, it is required to have weather resistance, but there is no one having a simple structure and sufficient weather resistance, and such a sign is desired. It was rare.
【０００６】さらに、このような標識の場合、配電設備
を必要とするので、イニシャルコストが高く、また配電
工事等が煩わしく、更には配電設備の無い山奥や海浜等
では利用することができなかった。Further, in the case of such a sign, since the distribution equipment is required, the initial cost is high, the distribution work is troublesome, and it cannot be used in the mountains or the beach where there is no distribution equipment. .
【０００７】そこで、この発明の課題は、配電設備を必
要とせず、簡単な構造で十分な耐候性を有する発光標識
装置を得ることにある。Therefore, an object of the present invention is to obtain a luminescent labeling device which does not require power distribution equipment and has a simple structure and sufficient weather resistance.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、この発明の発光標識装置は、太陽電池と、発光素子
と、この太陽電池によって発生された電力を蓄積する蓄
電池と、この太陽電池の電力が低下したときには、この
蓄電池の電力を該発光素子に加えて、この発光素子を発
光させる発光回路とを透明な合成樹脂性支持体に埋め込
んで封入してなる。In order to solve the above-mentioned problems, a luminescent marker device of the present invention is a solar cell, a light emitting element, a storage battery for accumulating the electric power generated by the solar cell, and the solar cell. When the electric power of the storage battery is reduced, the electric power of the storage battery is added to the light emitting element, and the light emitting circuit for emitting light from the light emitting element is embedded and sealed in a transparent synthetic resin support.
【０００９】[0009]
【作用】この発明の発光標識装置では、太陽電池によっ
て発生された電力を蓄電池に充電しておき、発光回路
は、この太陽電池の電力が低下したときに、この蓄電池
の電力を該発光素子に加えて、この発光素子を発光させ
ている。このため、昼間には、太陽電池の充電が行われ
て、発光素子が発光せず、夜間には、発光素子が発光す
ることとなる。また、太陽電池と、発光素子と、蓄電池
と、発光回路とを透明な合成樹脂性支持体に埋め込んで
封入しているので、十分な耐候性が得られる。In the luminescent marker device of the present invention, the storage battery is charged with the electric power generated by the solar cell, and the light emitting circuit supplies the electric power of the storage battery to the light emitting element when the power of the solar cell is reduced. In addition, this light emitting element is made to emit light. Therefore, the solar cell is charged in the daytime, the light emitting element does not emit light, and the light emitting element emits light in the nighttime. Further, since the solar cell, the light emitting element, the storage battery, and the light emitting circuit are embedded and sealed in a transparent synthetic resin support, sufficient weather resistance can be obtained.
【００１０】[0010]
【実施例】以下、この発明の実施例を添付図面を参照し
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１１】図１乃至図３には、この発明の発光標識装
置の一実施例が示されている。図１は、この実施例の発
光標識装置の外観を示し、図２は、この実施例の装置の
断面構造を示し、図３は、この実施例の装置の回路構成
を示している。1 to 3 show an embodiment of the luminescent marker device of the present invention. FIG. 1 shows the external appearance of the luminescent labeling device of this embodiment, FIG. 2 shows the cross-sectional structure of the device of this embodiment, and FIG. 3 shows the circuit configuration of the device of this embodiment.
【００１２】この発光標識装置１では、合成樹脂性の透
明ケース２の内側に、太陽電池３、各発光ダイオード
４、蓄電池５、充電回路６及び発光回路７を配置してい
る。この透明ケース２の下端は、開口されており、この
開口部から透明なエポキシ樹脂８を充填している。これ
により、この透明ケース２の内容物が封入される。ま
た、透明ケース２の上側には、吊り孔２ａが形成されて
いる。In this luminescent sign device 1, a solar cell 3, each light emitting diode 4, a storage battery 5, a charging circuit 6 and a light emitting circuit 7 are arranged inside a transparent case 2 made of synthetic resin. The lower end of the transparent case 2 is opened, and the transparent epoxy resin 8 is filled from this opening. As a result, the contents of the transparent case 2 are enclosed. A suspension hole 2a is formed on the upper side of the transparent case 2.
【００１３】太陽電池３は、透明ケース２の壁を通じて
太陽光を受光し、電力を発生する。この電力は、充電回
路６に加えられ、この充電回路６によって、蓄電池５が
充電される。発光回路７は、太陽電池３の出力を監視し
ており、この太陽電池３の出力が予め定められたレベル
よりも低下すると、つまり夜間になると、蓄電池５の電
圧を各発光ダイオード４に間欠的に加える。これによ
り、各発光ダイオード４が間欠的に発光する。The solar cell 3 receives sunlight through the wall of the transparent case 2 and generates electric power. This electric power is applied to the charging circuit 6, and the storage battery 5 is charged by the charging circuit 6. The light emitting circuit 7 monitors the output of the solar cell 3, and when the output of the solar cell 3 falls below a predetermined level, that is, at night, the voltage of the storage battery 5 is intermittently applied to each light emitting diode 4. Add to. As a result, each light emitting diode 4 emits light intermittently.
【００１４】したがって、昼間には、太陽電池３の充電
が行われて、各発光ダイオード４が発光せず、夜間に
は、各発光ダイオード４が発光する。Therefore, in the daytime, the solar cell 3 is charged so that the light emitting diodes 4 do not emit light, and in the nighttime, the light emitting diodes 4 emit light.
【００１５】エポキシ樹脂８には、合成非晶質シリカの
粉体が混入されている。この合成非晶質シリカによっ
て、各発光ダイオード４の光がエポキシ樹脂８の中で拡
散される。このため、この発光標識装置１の全体が一様
に斑なく発光する。A powder of synthetic amorphous silica is mixed in the epoxy resin 8. The light of each light emitting diode 4 is diffused in the epoxy resin 8 by this synthetic amorphous silica. For this reason, the entire light emitting marker device 1 uniformly emits light without spots.
【００１６】また、この発光標識装置１は、各発光ダイ
オード４の発光色で発光する。Further, the light emitting marker device 1 emits light in the emission color of each light emitting diode 4.
【００１７】この発光標識装置１では、太陽電池３、各
発光ダイオード４、蓄電池５、充電回路６及び発光回路
７をエポキシ樹脂８の中に封入しているので、十分な耐
候性が得られる。例えば、この発光標識装置１を海上に
浮くブイに取り付けても、海水が透明ケース２の内容物
まで浸透することはないので、その耐候性を期待でき
る。このブイへの取り付けのために、透明ケース２の吊
り孔２ａには、図１に示すようなロープ１１が通されて
結び付けられる。このロープ１１は、ブイから導出され
たものであり、この発光標識装置１がブイの外壁に垂れ
下がる。勿論、この発光標識装置１の太陽電池３が上側
に向くように、この発光標識装置１を取り付ける必要が
ある。Since the solar cell 3, each light emitting diode 4, the storage battery 5, the charging circuit 6 and the light emitting circuit 7 are enclosed in the epoxy resin 8 in this luminescent marker device 1, sufficient weather resistance can be obtained. For example, even if this luminescent sign device 1 is attached to a buoy floating above the sea, seawater will not penetrate into the contents of the transparent case 2, and therefore its weather resistance can be expected. For attachment to this buoy, a rope 11 as shown in FIG. 1 is passed through the suspension hole 2a of the transparent case 2 and tied. The rope 11 is derived from a buoy, and the luminescent sign device 1 hangs down on the outer wall of the buoy. Of course, it is necessary to attach the luminescent marker device 1 so that the solar cell 3 of the luminescent marker device 1 faces upward.
【００１８】なお、この発光標識装置１をブイだけでな
く、他の箇所に取り付けても構わない。例えば、海上に
張られたロープや網、あるいは地上での工事現場等への
適用がある。The luminescent sign device 1 may be attached not only to the buoy but also to other places. For example, it is applicable to ropes and nets stretched over the sea, or construction sites on the ground.
【００１９】ところで、この発明の発光標識装置は、上
記実施例のものに限定されず、種々の変形が可能であ
る。By the way, the luminescent marking device of the present invention is not limited to the above-mentioned embodiment, but various modifications can be made.
【００２０】例えば、図４に示すようにな発光標識装置
１２がある。この発光標識装置１２では、図１の透明ケ
ース２の代わりに、２段ケース１３を適用している。こ
の２段ケース１３は、その頭部１３ａが透明であって、
半球状に形成されており、ここに太陽電池３が配置され
ている。また、２段ケース１３の胴部１３ｂは、頭部１
３ａよりも径が小さく、この胴部１３ａが道路沿いのガ
ードレールの支柱１４の上端の開口部に嵌め入れられ
る。For example, there is a luminescent marker device 12 as shown in FIG. In this luminescent marker device 12, a two-stage case 13 is applied instead of the transparent case 2 of FIG. This two-stage case 13 has a transparent head 13a,
It is formed in a hemispherical shape, and the solar cell 3 is arranged therein. Further, the body portion 13b of the two-stage case 13 has the head 1
The diameter is smaller than 3a, and the body portion 13a is fitted into the opening at the upper end of the pillar 14 of the guard rail along the road.
【００２１】図５にも、略同様な変形例として、発光標
識装置１５が示されている。この発光標識装置１５は、
図４の発光標識装置１２と比較して、２段ケース１６の
頭部１６ａの形状が異なる。FIG. 5 also shows a luminescent marker device 15 as a substantially similar modification. This luminescent marker device 15 is
The shape of the head portion 16a of the two-stage case 16 is different from that of the luminescent marker device 12 of FIG.
【００２２】図６には、別の変形例として、発光標識装
置１７が示されている。この発光標識装置１７では、ケ
ース１８の左端を斜に切断されたように形成し、このケ
ース１８の右端を球状に形成している。このケース１８
の斜の切断面には、太陽電池３が配置され、このケース
１８の球状の部分には、発光ダイオードが配置されてい
る。また、このケース１８の左端には、取り付け金具１
９が固定されている。この取り付け金具１９の孔に、支
柱２１を差し込み、この金具１９を上下の各ナット２２
の間に挟み込んで、この金具１９を固定する。これによ
り、この発光標識装置１７が固定される。この発光標識
装置１７も、図５及び図６の装置と同様に、道路沿いに
配設される。FIG. 6 shows a luminescent marker device 17 as another modification. In this luminescent marker device 17, the left end of the case 18 is formed so as to be obliquely cut, and the right end of the case 18 is formed into a spherical shape. This case 18
The solar cell 3 is arranged on the oblique cut surface of the, and the light emitting diode is arranged on the spherical portion of the case 18. In addition, at the left end of the case 18, the mounting bracket 1
9 is fixed. Insert the support column 21 into the hole of the mounting bracket 19 and attach the bracket 19 to the upper and lower nuts 22.
The metal fitting 19 is fixed by being sandwiched between the metal fittings. As a result, the luminescent marker device 17 is fixed. The light emitting sign device 17 is also arranged along the road, like the devices shown in FIGS. 5 and 6.
【００２３】図７には、更に他の変形例として、発光標
識装置２３が示されている。この発光標識装置２３で
は、ケース２４の左端を球状に形成しており、この中に
発光ダイオード４を配置している。また、ケース２４の
右端には、支持板２５が固定され、この支持板２５に太
陽電池３が固定されている。さらに、ケース２４の右端
には、取り付け金具２６が固定れている。この取り付け
金具２６の孔に、支柱２７を差し込み、この金具２６を
上下の各ナット２８の間に挟み込んで、この金具２６を
固定する。また、支柱２７の上端には、補強板２９と太
陽電池３の支持板２５が重ねられて固定される。FIG. 7 shows a luminescent marker device 23 as a further modification. In this light emitting marker device 23, the left end of the case 24 is formed into a spherical shape, and the light emitting diode 4 is arranged in this. A support plate 25 is fixed to the right end of the case 24, and the solar cell 3 is fixed to the support plate 25. Further, a mounting member 26 is fixed to the right end of the case 24. The support 27 is inserted into the hole of the attachment fitting 26, and the fitting 26 is sandwiched between the upper and lower nuts 28 to fix the fitting 26. The reinforcing plate 29 and the support plate 25 of the solar cell 3 are overlapped and fixed to the upper ends of the columns 27.
【００２４】図６及び図７の各発光標識装置１７，２３
は、図４及び図５のものと同様に、道路沿いに配設され
る。これらの発光標識装置１７，２３の主な相違点は、
太陽電池３と発光ダイオード４の向きである。つまり、
図６の発光標識装置１７では、太陽電池３が左向き、発
光ダイオード４が右向きであって、両者が反対の方向に
向いており、図７の発光標識装置２３では、太陽電池３
と発光ダイオード４が共に左向きであって、同一の方向
に向いている。これは、太陽電池３を太陽の方向に向け
る必要があり、この太陽の方向と発光ダイオード４の光
の照射方向が必ずしも一致しないためである。Each of the luminescent marking devices 17, 23 shown in FIGS. 6 and 7
Are arranged along the road, similar to those in FIGS. The main difference between these luminescent labeling devices 17 and 23 is that
It is the direction of the solar cell 3 and the light emitting diode 4. That is,
In the luminescence labeling device 17 of FIG. 6, the solar cell 3 is facing left and the light emitting diode 4 is facing right, and the two are facing in opposite directions. In the luminescence labeling device 23 of FIG.
The light emitting diode 4 and the light emitting diode 4 are both facing leftward and facing the same direction. This is because it is necessary to orient the solar cell 3 in the direction of the sun, and the direction of the sun and the irradiation direction of light from the light emitting diode 4 do not necessarily match.
【００２５】[0025]
【効果】以上説明したように、この発明の発光標識装置
では、太陽電池と、発光素子を備えており、昼間には、
太陽電池を充電し、夜間には、発光素子を発光させてい
る。このため、配電設備を必要とせず、イニシャルコス
トが低くて済み、どの様な場所にでも、簡単に配備する
ことができる。As described above, the luminescent marker device of the present invention includes the solar cell and the light emitting element, and in the daytime,
The solar cell is charged and the light emitting element is made to emit light at night. Therefore, it does not require power distribution equipment, the initial cost is low, and it can be easily deployed in any place.
【図１】この発明の発光標識装置の一実施例を示す斜視
図FIG. 1 is a perspective view showing an embodiment of a luminescent marker device of the present invention.
【図２】この実施例の装置の構造を示す断面図FIG. 2 is a sectional view showing the structure of the device of this embodiment.
【図３】この実施例の装置の構成を示すブロック図FIG. 3 is a block diagram showing the configuration of the apparatus of this embodiment.
【図４】この発明の発光標識装置の変形例を示す図FIG. 4 is a view showing a modified example of the luminescent marker device of the present invention.
【図５】この発明の発光標識装置の他の変形例を示す図FIG. 5 is a view showing another modified example of the luminescent marker device of the present invention.
【図６】この発明の発光標識装置の別の変形例を示す図FIG. 6 is a view showing another modified example of the luminescent marker device of the present invention.
【図７】この発明の発光標識装置の更に他の変形例を示
す図FIG. 7 is a view showing still another modified example of the luminescent marker device of the present invention.
１ 発光標識装置 ２ 透明ケース ３ 太陽電池 ４ 発光ダイオード ５ 蓄電池 ６ 充電回路 ７ 発光回路 ８ エポキシ樹脂 1 Luminous indicator device 2 Transparent case 3 Solar cell 4 Light emitting diode 5 Storage battery 6 Charging circuit 7 Light emitting circuit 8 Epoxy resin
Claims (3)
によって発生された電力を蓄積する蓄電池と、この太陽
電池の電力が低下したときには、この蓄電池の電力を該
発光素子に加えて、この発光素子を発光させる発光回路
とを透明な合成樹脂性支持体に埋め込んで封入してなる
発光標識装置。1. A solar cell, a light emitting element, a storage battery for accumulating the electric power generated by the solar cell, and when the electric power of the solar cell decreases, the electric power of the storage battery is applied to the light emitting element to A light-emitting marker device in which a light-emitting circuit for causing a light-emitting element to emit light is embedded and sealed in a transparent synthetic resin support.
樹脂性支持体とは異なる光屈折率を有する微小で透明な
多数の光拡散材を混入した請求項１に記載の発光標識装
置。2. The luminescent labeling device according to claim 1, wherein the transparent synthetic resin support is mixed with a large number of minute and transparent light diffusing materials having a light refractive index different from that of the synthetic resin support. .
発光回路とを少なくとも透明な合成樹脂性支持体に埋め
込んで封入し、 この合成樹脂性支持体には、この合成樹脂性支持体とは
異なる光屈折率を有する微小で透明な多数の光拡散材を
混入してなる発光標識装置。3. A light-emitting element and a light-emitting circuit for causing the light-emitting element to emit light are embedded and encapsulated in at least a transparent synthetic resin support, and the synthetic resin support is defined as the synthetic resin support. A luminescent marker device in which a large number of minute and transparent light diffusing materials having different light refractive indexes are mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7011587A JPH08199513A (en) | 1995-01-27 | 1995-01-27 | Lighted marker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7011587A JPH08199513A (en) | 1995-01-27 | 1995-01-27 | Lighted marker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08199513A true JPH08199513A (en) | 1996-08-06 |
Family
ID=11782042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7011587A Pending JPH08199513A (en) | 1995-01-27 | 1995-01-27 | Lighted marker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08199513A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0959942A (en) * | 1995-08-24 | 1997-03-04 | Sekisui Jushi Co Ltd | Self-light emitting type sign |
| EP1617486A1 (en) * | 2003-04-21 | 2006-01-18 | Kyosemi Corporation | Selfluminous device |
| JP2007059366A (en) * | 2005-08-25 | 2007-03-08 | Knowledge Co Ltd | Simple warning light and method of manufacturing same |
| US7214557B2 (en) | 2003-10-24 | 2007-05-08 | Kyosemi Corporation | Light receiving or light emitting modular sheet and process for producing the same |
| US7220997B2 (en) | 2002-06-21 | 2007-05-22 | Josuke Nakata | Light receiving or light emitting device and itsd production method |
| US7238968B2 (en) | 2001-08-13 | 2007-07-03 | Josuke Nakata | Semiconductor device and method of making the same |
| US7238966B2 (en) | 2002-05-02 | 2007-07-03 | Josuke Nakata | Light-receiving panel or light-emitting panel, and manufacturing method thereof |
| US7244998B2 (en) | 2001-08-13 | 2007-07-17 | Josuke Nakata | Light-emitting or light-receiving semiconductor module and method of its manufacture |
| US7378757B2 (en) | 2003-06-09 | 2008-05-27 | Kyosemi Corporation | Power generation system |
| US7602035B2 (en) | 2001-10-19 | 2009-10-13 | Josuke Nakata | Light emitting or light receiving semiconductor module and method for manufacturing same |
| JP2010146786A (en) * | 2008-12-17 | 2010-07-01 | Sumitomo Electric Ind Ltd | Lamp unit, and traffic signal lamp unit |
| US20170205533A1 (en) * | 2016-01-19 | 2017-07-20 | The Regents Of The University Of Michigan | Environmental logging system |
| KR101962799B1 (en) * | 2018-09-21 | 2019-03-27 | (주)성일솔레드 | Divisional strip with warning lamp |
-
1995
- 1995-01-27 JP JP7011587A patent/JPH08199513A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0959942A (en) * | 1995-08-24 | 1997-03-04 | Sekisui Jushi Co Ltd | Self-light emitting type sign |
| US7244998B2 (en) | 2001-08-13 | 2007-07-17 | Josuke Nakata | Light-emitting or light-receiving semiconductor module and method of its manufacture |
| US7238968B2 (en) | 2001-08-13 | 2007-07-03 | Josuke Nakata | Semiconductor device and method of making the same |
| US7602035B2 (en) | 2001-10-19 | 2009-10-13 | Josuke Nakata | Light emitting or light receiving semiconductor module and method for manufacturing same |
| US7238966B2 (en) | 2002-05-02 | 2007-07-03 | Josuke Nakata | Light-receiving panel or light-emitting panel, and manufacturing method thereof |
| US7220997B2 (en) | 2002-06-21 | 2007-05-22 | Josuke Nakata | Light receiving or light emitting device and itsd production method |
| EP1617486A4 (en) * | 2003-04-21 | 2007-10-17 | Kyosemi Corp | Selfluminous device |
| US7387400B2 (en) | 2003-04-21 | 2008-06-17 | Kyosemi Corporation | Light-emitting device with spherical photoelectric converting element |
| EP1617486A1 (en) * | 2003-04-21 | 2006-01-18 | Kyosemi Corporation | Selfluminous device |
| EP2259333A2 (en) | 2003-04-21 | 2010-12-08 | Kyosemi Corporation | Self light - emitting device |
| US7378757B2 (en) | 2003-06-09 | 2008-05-27 | Kyosemi Corporation | Power generation system |
| US7214557B2 (en) | 2003-10-24 | 2007-05-08 | Kyosemi Corporation | Light receiving or light emitting modular sheet and process for producing the same |
| JP2007059366A (en) * | 2005-08-25 | 2007-03-08 | Knowledge Co Ltd | Simple warning light and method of manufacturing same |
| JP2010146786A (en) * | 2008-12-17 | 2010-07-01 | Sumitomo Electric Ind Ltd | Lamp unit, and traffic signal lamp unit |
| US20170205533A1 (en) * | 2016-01-19 | 2017-07-20 | The Regents Of The University Of Michigan | Environmental logging system |
| US10782446B2 (en) * | 2016-01-19 | 2020-09-22 | The Regents Of The University Of Michigan | Environmental logging system |
| KR101962799B1 (en) * | 2018-09-21 | 2019-03-27 | (주)성일솔레드 | Divisional strip with warning lamp |
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