JPS6253091B2 - - Google Patents
Info
- Publication number
- JPS6253091B2 JPS6253091B2 JP56031867A JP3186781A JPS6253091B2 JP S6253091 B2 JPS6253091 B2 JP S6253091B2 JP 56031867 A JP56031867 A JP 56031867A JP 3186781 A JP3186781 A JP 3186781A JP S6253091 B2 JPS6253091 B2 JP S6253091B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical transmission
- light wave
- output end
- transmission loss
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000003287 optical effect Effects 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Optical Communication System (AREA)
Description
【発明の詳細な説明】
本発明は光伝送体により光エネルギーを伝送す
る光伝送方法に関する。遠隔地へ光エネルギーを
伝送する例としては、抗道内を照明する場合とか
海底へ太陽光を導入する場合などがあり、この場
合光エネルギーの伝送には光伝送体を使用してい
る。しかし光伝送体は0.8〜1.6μｍの波長域で伝
送損失の少ないものが得られている（例えば
0.6dB／Km）が、波長0.2〜0.7μｍの可視光乃至
紫外領域の光の伝送損失は比較的大きい（例えば
30〜50dB／Km程度）。そのため100ｍ以上の伝送
距離では充分な光量が得られず照明用としても用
途が限定されてしまうという欠点があつた。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical transmission method for transmitting optical energy using an optical transmission body. Examples of transmitting light energy to a remote location include illuminating the inside of a dragway or introducing sunlight to the ocean floor, in which case optical transmission bodies are used to transmit light energy. However, optical transmission materials with low transmission loss in the wavelength range of 0.8 to 1.6 μm have been obtained (for example,
0.6d B /Km), but the transmission loss of light in the visible to ultraviolet region with a wavelength of 0.2 to 0.7 μm is relatively large (e.g.
30~ 50dB /Km). For this reason, a sufficient amount of light cannot be obtained over a transmission distance of 100 m or more, which limits its use for illumination.
本発明はこの欠点を解消するため、光伝送体で
は主に伝送損失の少ない波長帯の光を伝送し、伝
送損失の大きい波長の光は光伝送体により伝送さ
れてきた光を利用して光伝送体の出射端側で発生
させるようにするものである。 In order to solve this drawback, the present invention uses an optical transmission body to mainly transmit light in a wavelength band with low transmission loss, and to transmit light in a wavelength band with high transmission loss by using the light transmitted by the optical transmission body. This is to be generated on the output end side of the transmitter.
以下本発明を図面に基づき詳記する。 The present invention will be described in detail below based on the drawings.
発光体１から発光された光を凸レンズ２により
集束し、光伝送体３に入射して遠隔地まで伝送す
る。出射端側では光伝送体３により伝送された光
を凹レンズ４に入れて拡散させ、この光を近赤外
領域の波長光に励起されると伝送損失の大きい波
長の光（可視光）を発する光波変換物質５に投射
して伝送損失の大きい波長の光（例えば可視光）
を発生させるようにしたものである。 Light emitted from a light emitter 1 is focused by a convex lens 2, enters a light transmitter 3, and is transmitted to a remote location. On the output end side, the light transmitted by the optical transmitter 3 is entered into a concave lens 4 and diffused, and when this light is excited by light with a wavelength in the near-infrared region, it emits light (visible light) with a wavelength that has a large transmission loss. Light of a wavelength that causes a large transmission loss when projected onto the light wave conversion material 5 (for example, visible light)
It is designed to generate.
発光体１から発生される光は光伝送体３での伝
送損失の少ない波長域のものが望ましいが、それ
より広い波長帯域の光であつてもよい。発光体１
としては発光ダイオード、キセノンランプ等を用
いるとよい。 It is desirable that the light emitted from the light emitter 1 be in a wavelength range with little transmission loss in the optical transmitter 3, but it may be light in a wider wavelength range. Luminous body 1
As a light emitting diode, a xenon lamp, etc. may be used.
光伝送体３としては0.85〜1.55μｍの波長帯で
低伝送損失な石英系フアイバが適し、それを一本
のまゝ或は束にして使用する。近赤外領域の波長
光により励起されて可視光を発する光波変換物質
としては硫化亜鉛系或は硫化カルシユム系の螢光
物質があり、これを光伝送体３の出射端面３′に
塗布したり、文字、図形等が描かれている表示板
６に塗布したりしておけばよい。表示板６は光透
過形のものでも反射形のものでもよい。 As the optical transmission body 3, a quartz fiber having low transmission loss in the wavelength band of 0.85 to 1.55 μm is suitable, and it can be used as a single fiber or in a bundle. Examples of light wave converting substances that emit visible light when excited by wavelength light in the near-infrared region include zinc sulfide-based or calcium sulfide-based fluorescent substances, which can be coated on the output end surface 3' of the optical transmitter 3. , on the display board 6 on which characters, figures, etc. are drawn. The display board 6 may be of a light transmissive type or a reflective type.
本発明は叙上のように、光伝送体では主に伝送
損失の少ない波長の光を伝送し、出射端側におい
てその光を利用して伝送損失の大きい波長の光を
発生させるようにするものであるため伝送損失の
大きい波長の光（例えば可視光）を出射端側で効
率良く得ることができ、従つてそれを照明や文
字、図形の表示等に使用する場合それらに必要な
光エネルギーを十分得ることができる。 As described above, the present invention is an optical transmission body that mainly transmits light of a wavelength with little transmission loss, and uses that light on the output end side to generate light of a wavelength of high transmission loss. Therefore, it is possible to efficiently obtain light at a wavelength with a large transmission loss (for example, visible light) at the output end, and therefore, when it is used for illumination, text, graphic display, etc., the light energy required for these purposes is reduced. You can get enough.
また、受光側で発光された光のみでなく、光伝
送体により伝送されてくる伝送損失の少ない波長
の光エネルギーを利用できるため光源からのエネ
ルギーの利用率が高まり、所定レベルの光量を得
る場合のコストが低減される。 In addition, it is possible to use not only the light emitted by the light receiving side, but also the light energy of wavelengths with low transmission loss transmitted by the optical transmission body, which increases the utilization rate of energy from the light source, and when obtaining a predetermined level of light intensity. costs are reduced.
図は本発明の一例を示す説明図である。
１は光源、２は光伝送体、５は光波変換物質、
６は表示板。
The figure is an explanatory diagram showing an example of the present invention. 1 is a light source, 2 is a light transmission body, 5 is a light wave conversion substance,
6 is the display board.
Claims (1)
て光伝送体の光出射端側から出射させ、その光を
光波変換物質に投射させて、光出射端側で前記光
伝送体の光伝送損失の大きい光波を得るようにし
た光伝送方法。 ２ 光伝送体として0.85〜1.55μｍの波長帯で低
伝送損失な石英系フアイバを用いるようにした特
許請求の範囲第１項記載の光伝送方法。 ３ 光波変換物質として硫化亜鉛系または硫化カ
ルシウム系の螢光物質を用いるようにした特許請
求の範囲第１項または第２項記載の光伝送方法。 ４ 光波変換物質を光伝送体の出射端面に塗布し
た特許請求の範囲第１項または第２項または第３
項記載の光伝送方法。[Scope of Claims] 1. A light wave with low optical transmission loss is input to an optical transmission body, and the light wave is emitted from the light output end side of the optical transmission body, and the light is projected onto a light wave conversion material, and the light wave is emitted from the light output end side. An optical transmission method that obtains light waves with large optical transmission losses in optical transmission bodies. 2. The optical transmission method according to claim 1, wherein a quartz fiber having low transmission loss in the wavelength band of 0.85 to 1.55 μm is used as the optical transmission body. 3. The optical transmission method according to claim 1 or 2, wherein a zinc sulfide-based or calcium sulfide-based fluorescent material is used as the light wave conversion material. 4 Claim 1, 2 or 3 in which a light wave conversion substance is applied to the output end face of the optical transmission body
Optical transmission method described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56031867A JPS57147344A (en) | 1981-03-05 | 1981-03-05 | Optical transmitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56031867A JPS57147344A (en) | 1981-03-05 | 1981-03-05 | Optical transmitting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57147344A JPS57147344A (en) | 1982-09-11 |
| JPS6253091B2 true JPS6253091B2 (en) | 1987-11-09 |
Family
ID=12342990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56031867A Granted JPS57147344A (en) | 1981-03-05 | 1981-03-05 | Optical transmitting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57147344A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247994U (en) * | 1988-09-28 | 1990-04-03 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03100131U (en) * | 1990-02-02 | 1991-10-18 | ||
| BE1007227A5 (en) * | 1993-06-18 | 1995-04-25 | Allseas Eng Bv | Method and apparatus for communications under water. |
-
1981
- 1981-03-05 JP JP56031867A patent/JPS57147344A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247994U (en) * | 1988-09-28 | 1990-04-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57147344A (en) | 1982-09-11 |
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