JPH0370207B2 - - Google Patents
Info
- Publication number
- JPH0370207B2 JPH0370207B2 JP57081477A JP8147782A JPH0370207B2 JP H0370207 B2 JPH0370207 B2 JP H0370207B2 JP 57081477 A JP57081477 A JP 57081477A JP 8147782 A JP8147782 A JP 8147782A JP H0370207 B2 JPH0370207 B2 JP H0370207B2
- Authority
- JP
- Japan
- Prior art keywords
- transparent plate
- lens
- light
- light guide
- lenses
- 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 - Lifetime
Links
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/12—Light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- 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
- Y02E10/52—PV systems with concentrators
Description
【発明の詳細な説明】
本出願人は、先に、レンズ系によつて太陽光エ
ネルギーを集束して光導体ケーブル内に導入し、
該光導体ケーブルを介して任意所望の箇所へ伝達
して照明その他の使用に供するようにした太陽光
収集装置に関して種々提案してきた。本発明は、
上述のごとき太陽光収集装置を更に改良して光収
集効率の格段の向上を図るとともに、熱変形によ
る太陽光収集効率の低下を防止するようにしたも
のである。DETAILED DESCRIPTION OF THE INVENTION The applicant first focused and introduced solar energy into a light conductor cable by a lens system,
Various proposals have been made regarding solar light collection devices that transmit solar light to any desired location via the light guide cable for illumination or other uses. The present invention
The solar light collection device as described above is further improved to significantly improve the light collection efficiency and to prevent a decrease in the solar light collection efficiency due to thermal deformation.
第１図は、本発明による太陽光収集装置の一実
施例を説明するための要部概略構成図で、図中、
１は透明板、２は該透明板１の表面に配設された
多数個のレンズ、３は透明板１の裏面に前記レン
ズ２に夫々対向して配設されたレンズで、これら
レンズ２及び３は夫々対をなしてレンズ系を構成
し、各レンズ系は太陽光Ｌを集束するように構成
されている。４は前述のごとくして構成された各
レンズ系の焦点位置に配設された光導体、５は該
光導体を支持する透明板で、光導体４は水晶ロツ
ド又は石英フアイバー等から成る光導体ピツグテ
ールを構成しており、その受光端４ａは夫々レン
ズ系の焦点位置に配設され、各レンズ系によつて
集束された太陽光が導入されるようになつてい
る。６は石英又はプラスチツク材から成る光導体
ケーブル又はフアイバー又はチユーブで、前述の
ごとくして光導体ピツグテール内に導入された太
陽光をまとめて任意所望の箇所へ伝達するための
ものである。而して、本発明においては、上述の
ように、太陽光収集装置のレンズ２，３及びこれ
らレンズを支持する透明板１、及び、レンズ系の
焦点位置に配設された光導体ピツグテール４を支
持する透明板５等が全て同一の材質例えばガラス
又はアクリルで構成されており、そのため、太陽
熱等によつて熱変形したような場合においても全
体の関係がくずれるようなことはなく、常に、最
初にセツトした最良の状態の効率で太陽光を収集
することができる。また、大型の太陽光収集装置
を構成する場合、大型のガラス又はアクリルレン
ズを用いて太陽光を収集するようにすることも考
えられるが、大型のガラス又はアクリルレンズ
は、受光面積に比して体積が大きく、従つて、重
量が大きくなり、大型の太陽光収集装置を構成す
るには得策ではない。この点、本発明において
は、直径４cm程度の小径のガラス又はアクリルレ
ンズを多数個用いるようにしているため、レンズ
の受光面積に対する重量を小さくすることがで
き、大型の太陽光収集装置を構成する場合に、装
置全体の重量を軽くすることができる。また、本
発明によると、小径のレンズを用いているので、
光導体ピツグテールの入射端面の径を小さくする
ことができ、例えば、レンズ２として直径４cmの
レンズを使用した場合、その焦点距離は約４cmと
なり、焦点の径は400μｍ〜800μｍであるから、
光導体ピツグテールのコア部材の径は約400μｍ
〜800μｍでよく、従つて、各レンズ系に対して
可撓性のある単一の光導体ピツグテールを使用す
ることができる。これに対し、従来の大型のレン
ズ例えば直径40cmのレンズを使用した場合は、可
撓性を維持するために細い径の多数本のフアイバ
ーを束にして受光端面を形成せざるを得ず、その
ため、必然的にフアイバー間に間隙が発生し、実
質的受光面積が減り、また、バンドル（束）にし
た受光端面を平面仕上げすることは非常に困難で
あり、その結果として、受光効率は30〜40％程度
にしかすぎなかつたが、この点、本発明による
と、単一の光導体フアイバー（ピツグテール）に
導入するようにしたので、受光効率を80％程度ま
で向上させることができた。また、本発明のよう
に、小径のレンズを多数個用いる場合、この多数
個のレンズを同一平面上に整然とかつ隙間なく配
設することは大変なことであるが、本発明のよう
に、これら多数個のレンズを透明板１の上に配設
するようにすれば、平面仕上げした透明板（ガラ
ス又はアクリル板を平面仕上げすることは容易で
ある）の上に並べて接着剤にて接着すればよいの
で、レンズの配設が極めて簡単になる。更に、本
発明によると、透明板１の裏面にも前記レンズ２
に対向して夫々レンズ３を配設し、これらレンズ
２及び３によつて夫々レンズ系を構成するように
したので、レンズ系の焦点位置を短くすることが
でき、従つて、装置全体を小型（薄型）化するこ
とができるが、その場合においても、レンズ３を
透明板１の裏面に接着剤等によつて接着すればよ
いので、製作が非常に楽である。なお、その際、
透明板１の表面に配設するレンズは円形、八角
形、六角形、四角形、三角形等任意形状のものを
使用することが可能であるが、六角形のものを使
用すると各レンズ間に間隙等が生ぜず、最も効果
的にレンズを配設することができるが、そのよう
な場合においても、レンズ２によつて集束された
太陽光は透明板１内を進行する間に集束されるの
で、レンズ３は間隙をもつて配設することが可能
である。そのため、この間隙を利用して透明板１
と４の間に支持柱７を設ける等して透明板１と４
を一体構成にすることが容易となるが、その際
に、支持柱としてガラス又はアクリル部材を使用
して全体を同一部材で構成するようにするとよ
い。なお、透明板１の裏面に使用するレンズとし
て色収差レンズを用いることも可能で、色収差レ
ンズを使用すると全ての波長成分の太陽光を光導
体内に導入することができる。 FIG. 1 is a schematic configuration diagram of main parts for explaining one embodiment of a solar light collecting device according to the present invention, and in the figure,
1 is a transparent plate; 2 is a large number of lenses disposed on the surface of the transparent plate 1; 3 is a lens disposed on the back surface of the transparent plate 1, facing each of the lenses 2; 3 form a pair, respectively, to constitute a lens system, and each lens system is configured to focus sunlight L. 4 is a light guide disposed at the focal point of each lens system configured as described above; 5 is a transparent plate supporting the light guide; light guide 4 is a light guide made of crystal rod, quartz fiber, or the like; The light-receiving ends 4a of the light-receiving ends 4a are arranged at focal positions of the respective lens systems, so that sunlight focused by each lens system is introduced. Reference numeral 6 denotes a light guide cable, fiber or tube made of quartz or plastic material, for collectively transmitting the sunlight introduced into the light guide pigtail as described above to any desired location. Accordingly, in the present invention, as described above, the lenses 2 and 3 of the sunlight collecting device, the transparent plate 1 that supports these lenses, and the light guide pigtail 4 disposed at the focal point of the lens system are provided. The supporting transparent plates 5, etc. are all made of the same material, such as glass or acrylic, so even if they are thermally deformed by solar heat, etc., the overall relationship will not be disrupted, and the initial sunlight can be collected with the best efficiency set to In addition, when configuring a large sunlight collection device, it is possible to use a large glass or acrylic lens to collect sunlight, but the large glass or acrylic lens has a large size compared to the light receiving area. It has a large volume and therefore a large weight, and is not a good idea for constructing a large solar collector. In this regard, in the present invention, since a large number of small-diameter glass or acrylic lenses with a diameter of about 4 cm are used, the weight relative to the light-receiving area of the lens can be reduced, and a large-sized sunlight collecting device can be constructed. In some cases, the weight of the entire device can be reduced. Further, according to the present invention, since a small diameter lens is used,
The diameter of the incident end face of the light guide pigtail can be made small; for example, if a lens with a diameter of 4 cm is used as lens 2, its focal length will be approximately 4 cm, and the diameter of the focal point will be 400 μm to 800 μm.
The diameter of the core member of the light guide pigtail is approximately 400μm
˜800 μm, so a single flexible light guide pigtail can be used for each lens system. On the other hand, when using a conventional large lens, such as a lens with a diameter of 40 cm, the light-receiving end surface must be formed by bundling multiple fibers with small diameters in order to maintain flexibility. , a gap inevitably occurs between the fibers, reducing the effective light-receiving area, and it is extremely difficult to finish the bundled light-receiving end face flat, and as a result, the light-receiving efficiency is 30 ~ However, according to the present invention, the light receiving efficiency was improved to about 80% because it was introduced into a single light guide fiber (pigtail). Furthermore, when using a large number of small-diameter lenses as in the present invention, it is difficult to arrange the large number of lenses on the same plane in an orderly manner without gaps. If a large number of lenses are placed on the transparent plate 1, they can be arranged on a flat transparent plate (it is easy to flatten a glass or acrylic plate) and glued together. This makes the arrangement of the lens extremely simple. Furthermore, according to the present invention, the lens 2 is also provided on the back surface of the transparent plate 1.
Since the lenses 3 are disposed facing each other and the lenses 2 and 3 constitute a lens system, the focal position of the lens system can be shortened, and the entire device can be made compact. (thinner), but even in that case, the lens 3 can be bonded to the back surface of the transparent plate 1 with an adhesive or the like, so manufacturing is very easy. In addition, in that case,
The lenses arranged on the surface of the transparent plate 1 can be of any shape such as circular, octagonal, hexagonal, square, or triangular, but if hexagonal lenses are used, there will be gaps between each lens. However, even in such a case, the sunlight focused by the lens 2 is focused while traveling through the transparent plate 1. The lenses 3 can be arranged with gaps. Therefore, using this gap, the transparent plate 1
Transparent plates 1 and 4 are connected by providing a support column 7 between them.
In this case, it is preferable to use a glass or acrylic member as the support column so that the entire structure is made of the same member. Note that it is also possible to use a chromatic aberration lens as the lens used on the back surface of the transparent plate 1, and when the chromatic aberration lens is used, sunlight of all wavelength components can be introduced into the light guide.
以上に本発明による太陽光収集装置の一実施例
について説明したが、本発明は上記実施例に限定
されるものではなく、例えば、ガラス板１の周辺
部に光電変換素子８を設け、レンズ２によつて集
束された太陽光がレンズ３に到達するまでの間に
ガラス板１内で反射して該ガラス板内を周辺方向
に向う光を利用して光電変換素子８を働かせ、或
いは、ガラス板５の表面或いは裏面において、光
導体４の周囲に光電変換素子９を設け、光導体４
内に入らなかつた太陽光エネルギーを該光電変換
素子によつて電気エネルギーに変換して利用する
ようにすることも考えられる。ただし、透明板、
レンズ等の材料としてアクリル材を使用する場合
は、レンズ系によつて集束された太陽光がアクリ
ル透明板５に当ると、該アクリル透明板が焼損す
るおそれがあるので、そのような場合には該アク
リル透明板５の表面に遮光板を設けるとよい（た
だし、その場合には、アクリル透明板５の周辺部
に光電変換素子を設けることはできない）。また、
１１は前述のごとくして構成されたレンズ集合体
を保持するための枠体であるが、該枠材１１によ
つて、透明板１及び５を保持する場合に、これら
透明板と枠体の間に、図示のように、弾性部材１
０を設けておくと、これら透明部材の水平方向の
伸び、振動等を該弾性部材１０によつて吸収する
ことができる。 Although one embodiment of the sunlight collecting device according to the present invention has been described above, the present invention is not limited to the above embodiment. The photoelectric conversion element 8 is activated by utilizing the light reflected within the glass plate 1 and directed toward the periphery within the glass plate before the sunlight focused by the lens 3 reaches the lens 3. A photoelectric conversion element 9 is provided around the photoconductor 4 on the front or back surface of the plate 5.
It is also conceivable to use the solar energy that does not enter the interior by converting it into electrical energy by the photoelectric conversion element. However, transparent plate,
When using acrylic material as a material for lenses etc., if sunlight focused by the lens system hits the acrylic transparent plate 5, the acrylic transparent plate 5 may be burnt out. It is preferable to provide a light shielding plate on the surface of the acrylic transparent plate 5 (however, in that case, a photoelectric conversion element cannot be provided in the periphery of the acrylic transparent plate 5). Also,
Reference numeral 11 denotes a frame for holding the lens assembly configured as described above, and when holding the transparent plates 1 and 5 by the frame 11, the relationship between these transparent plates and the frame is In between, as shown, an elastic member 1
0, horizontal extension, vibration, etc. of these transparent members can be absorbed by the elastic member 10.
第２図は、第１図に示したＡ部の変形拡大図
で、図示のように、透明板１及び５をこれら透明
板と同質の枠体１１で支持し、その外側に光電変
換素子１２を設けるようにしてもよい。 FIG. 2 is a modified enlarged view of section A shown in FIG. may be provided.
第３図は、第１図の平面図で、図には、61個の
小径レンズを用いて直径約40cmのフレネルレンズ
に相当するレンズ集合体を示してあるが、本発明
は、図示レンズ集合体に限定されるものではな
く、例えば、図示のように構成されたレンズ集合
体を２個、３個、４個、７個、或いは19個等複数
個使用して更に大型の太陽光収集装置を構成する
ことも可能であり、或いは、更に大径の透明板１
を用い、該透明板２の上に更に多くの小型レンズ
２を配設するようにすることも可能である。その
際、支持柱７を図示のように中心のレンズに対し
て対称に配設しておくと、熱膨張等による変形が
全体にわたつて略均一となり透明板１と５の相対
的関係が一定に保たれるので、レンズ系の焦点位
置と光導体ピツグテールの受光面の関係が一定に
保たれ、変形等によつて光収集効率が低下するよ
うなことはなくなる。 FIG. 3 is a plan view of FIG. 1, and the figure shows a lens assembly equivalent to a Fresnel lens with a diameter of about 40 cm using 61 small diameter lenses. For example, a larger solar collector can be created by using a plurality of lens assemblies such as 2, 3, 4, 7, or 19 lenses configured as shown in the figure. Alternatively, it is also possible to configure a transparent plate 1 with an even larger diameter.
It is also possible to arrange more small lenses 2 on the transparent plate 2 by using the transparent plate 2. At this time, if the support column 7 is arranged symmetrically with respect to the center lens as shown in the figure, deformation due to thermal expansion etc. will be substantially uniform throughout, and the relative relationship between the transparent plates 1 and 5 will be constant. Therefore, the relationship between the focal position of the lens system and the light-receiving surface of the light guide pigtail is kept constant, and there is no possibility that the light collection efficiency will decrease due to deformation or the like.
以上の説明から明らかなように、本発明による
と、製作が容易で、かつ、小型、軽量で、しか
も、光収集効率の非常に優れた太陽光収集装置を
提供することができる。 As is clear from the above description, according to the present invention, it is possible to provide a sunlight collection device that is easy to manufacture, small in size, lightweight, and has extremely high light collection efficiency.
第１図は、本発明による太陽光収集装置の一実
施例を説明するための要部構成図、第２図は、第
１図のＡ部変形拡大図、第３図は、第１図の平面
図である。
１……透明板、２，３……レンズ、４……光導
体ピツグテール、５……透明板、６……光導体ケ
ーブル、７……支持柱、８，９……光電変換素
子、１０……弾性部材、１１……枠体。
FIG. 1 is a block diagram of main parts for explaining one embodiment of a solar light collecting device according to the present invention, FIG. 2 is a modified enlarged view of part A in FIG. 1, and FIG. FIG. DESCRIPTION OF SYMBOLS 1... Transparent plate, 2, 3... Lens, 4... Photoconductor pigtail, 5... Transparent plate, 6... Photoconductor cable, 7... Support column, 8, 9... Photoelectric conversion element, 10... ...Elastic member, 11...Frame.
Claims (1)
枚の前記透明板と同質の部材で形成されたレンズ
と、前記透明板の裏面に前記各レンズと対向して
レンズ系を構成するよう配設された前記透明板と
同質の部材で形成されたレンズと、前記レンズ系
の焦点位置に受光端面が配設された光導体と、該
光導体を支持する前記透明板と同質の部材で形成
された透明板と、前記レンズ系が配設されている
透明板と前記光導体が配設されている透明板とを
一体的に取り付けるための前記透明板と同質の部
材で形成された枠体とによつて構成されているこ
とを特徴とする太陽光収集装置。 ２ 前記透明板及びレンズがガラス部材で形成さ
れていることを特徴とする特許請求の範囲第１項
に記載の太陽光収集装置。 ３ 前記透明板及びレンズがアクリル部材で形成
されていることを特徴とする特許請求の範囲第１
項又は第２項に記載の太陽光収集装置。[Scope of Claims] 1. A transparent plate, a plurality of lenses disposed on the surface of the transparent plate and formed of the same material as the transparent plate, and a lens disposed on the back surface of the transparent plate facing each of the lenses. a lens formed of the same material as the transparent plate arranged to constitute a lens system; a light guide whose light-receiving end face is arranged at the focal position of the lens system; and a light guide supporting the light guide. A transparent plate formed of a member of the same quality as the transparent plate, and a transparent plate of the same quality as the transparent plate for integrally attaching the transparent plate on which the lens system is disposed and the transparent plate on which the light guide is disposed. 1. A solar light collecting device comprising: a frame body made of members; 2. The sunlight collecting device according to claim 1, wherein the transparent plate and the lens are formed of glass members. 3. Claim 1, wherein the transparent plate and the lens are made of an acrylic member.
2. The sunlight collecting device according to item 1 or 2.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57081477A JPS58199303A (en) | 1982-05-17 | 1982-05-17 | Solar light condensing device |
| US06/493,095 US4511755A (en) | 1982-05-17 | 1983-05-09 | Solar ray collection apparatus |
| EP83104595A EP0094598B1 (en) | 1982-05-17 | 1983-05-10 | Solar ray collection apparatus |
| DE8383104595T DE3373337D1 (en) | 1982-05-17 | 1983-05-10 | Solar ray collection apparatus |
| NZ204215A NZ204215A (en) | 1982-05-17 | 1983-05-12 | Solar ray concentrator:lenses with fibre optic cable |
| AU14547/83A AU557080B2 (en) | 1982-05-17 | 1983-05-16 | Solar ray collection apparatus |
| CA000428252A CA1229273A (en) | 1982-05-17 | 1983-05-16 | Solar ray collection apparatus |
| KR1019830002454A KR870000459B1 (en) | 1982-05-17 | 1983-06-02 | Apparatus of collecting sunlight |
| SG1114/87A SG111487G (en) | 1982-05-17 | 1987-12-30 | Solar ray collection apparatus |
| HK275/88A HK27588A (en) | 1982-05-17 | 1988-04-14 | Solar ray collection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57081477A JPS58199303A (en) | 1982-05-17 | 1982-05-17 | Solar light condensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58199303A JPS58199303A (en) | 1983-11-19 |
| JPH0370207B2 true JPH0370207B2 (en) | 1991-11-06 |
Family
ID=13747482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57081477A Granted JPS58199303A (en) | 1982-05-17 | 1982-05-17 | Solar light condensing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58199303A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11281351A (en) * | 1998-01-28 | 1999-10-15 | Fuji Electric Co Ltd | Distance measuring apparatus |
| JP2002243988A (en) * | 2001-02-13 | 2002-08-28 | Sony Corp | Light guide |
| US9343605B2 (en) | 2010-10-27 | 2016-05-17 | Kuraray Co., Ltd. | Photovoltaic equipment |
| EP3186566A4 (en) * | 2014-08-28 | 2018-05-16 | Rodluvan Inc. | Method for using concentrated solar power |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138951A (en) * | 1976-05-14 | 1977-11-19 | Tokyo Keiki Kk | Light collector and light transmitter |
| JPS54146033A (en) * | 1978-05-09 | 1979-11-14 | Takashi Mori | Sunlight collecting transmission device |
-
1982
- 1982-05-17 JP JP57081477A patent/JPS58199303A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138951A (en) * | 1976-05-14 | 1977-11-19 | Tokyo Keiki Kk | Light collector and light transmitter |
| JPS54146033A (en) * | 1978-05-09 | 1979-11-14 | Takashi Mori | Sunlight collecting transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58199303A (en) | 1983-11-19 |
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