CN1057843C - Cooling method for light receiving end of plastic optical fiber - Google Patents
Cooling method for light receiving end of plastic optical fiber Download PDFInfo
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- CN1057843C CN1057843C CN 97106702 CN97106702A CN1057843C CN 1057843 C CN1057843 C CN 1057843C CN 97106702 CN97106702 CN 97106702 CN 97106702 A CN97106702 A CN 97106702A CN 1057843 C CN1057843 C CN 1057843C
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- optical fiber
- light
- plastic optical
- receiving end
- liquid
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Abstract
The present invention relates to a cooling method for light receiving ends of plastic optical fiber. The present invention is characterized in that a liquid cooling mode is adopted, liquid which is transparent at least in normal working state is used as cooling liquid (2), light receiving ends (1) of plastic optical fiber are immersed into the cooling liquid (2), and visual light emitted by a light source (3) penetrates through the cooling liquid (2) and is irradiated on light receiving ends (1) of the plastic optical fiber. The present invention has the characteristics that under the premise that light irradiation energy of light receiving ends of the plastic optical fiber is greatly enhanced, an efficient cooling method for light receiving ends of the plastic optical fiber is provided, and thereby, the luminescence brightness of the light transmission distance of the plastic optical fiber are greatly improved; the present invention has the advantages of simple implementation and low cost, has obvious practicability and creativity, and is suitable for the popularization and the application in the field of lamplight decoration and graphic advertisements.
Description
The present invention relates to plastic optical fiber and passing the light time, its light-receiving end is subjected to a kind of cooling means after the illumination.
Plastic optical fiber is as a kind of light transmitting fiber that can conduct visible light, and when disposing light source and making light source irradiation arrive light-receiving end outside its light-receiving end, plastic optical fiber can produce the lighting effects of holding luminous and side luminous (entirely lighting).Utilize this principle to be made into light decoration, picture-text advertisement and the optical fibre illumination product of similar neon bulb, in decoration, advertisement and lighting field, have significant technical characteristic, unique visual effects and application prospects.But luminosity and biography electrical distance with regard to the prior art plastic optical fiber, compare existence with neon bulb obviously not enough, improve the luminosity of plastic optical fiber and pass the illumination energy that electrical distance must improve light receiving end of plastic optical fiber again, will inevitably cause the light receiving end of plastic optical fiber temperature to rise and improve the illumination energy, because the material behavior of plastic optical fiber is limit, serviceability temperature can only be limited within the specific limits, if the light receiving end of plastic optical fiber temperature is too high, will burn out the light-receiving end of plastic optical fiber.In order to address the above problem, Jap.P. JP.8-292339 discloses a kind of fiber-optic illuminated device on November 5th, 1996, the light that sends comprising light source, receive the plastic optical fiber and the liquid coolant between light source and plastic optical fiber of light that light source sends, and liquid coolant is the thermal convection self-loopa in its container.Technique scheme adopts the liquid coolant cooling optical fibers, can reduce the temperature of optical fiber light-receiving end, but on the one hand because the light source heat sees through transparent wall, liquid coolant is injected optical fiber end inside, liquid transparency is high more, its endothermic effect is poor more, and the transparency reduction can influence passing through of light, so liquid coolant can only play the part heat-absorbing action; On the other hand, the heat radiation that light source produces is that momentary action is in heated body, after the inner heat absorption of optical fiber end, because plastic optical fiber is a poor conductor of heat, its a large amount of heat energy can only conduct lentamente to liquid coolant, cause inside of optical fibre overheated suddenly and easy to be aging, and big more this phenomenon of light source power is obvious more.This shows how to solve improving the illumination energy, keeping effectively reducing the temperature of light receiving end of plastic optical fiber under the prerequisite of luminescence efficiency, is the key that improves the plastic optical fiber luminosity and pass electrical distance.
The objective of the invention is under the prerequisite that increases substantially light receiving end of plastic optical fiber illumination energy, a kind of efficient cooling means of light receiving end of plastic optical fiber is provided, thereby improve the luminosity of plastic optical fiber greatly and pass electrical distance.
For achieving the above object, the technical solution used in the present invention is: a kind of cooling means of light receiving end of plastic optical fiber, the mode that adopts liquid cooling mode and infrared light to filter stack is cooled off, with the liquid that is transparence at least in normal operation is liquid coolant, the light-receiving end of plastic optical fiber is immersed in the liquid coolant, infrared light filtration substrate contacts with liquid coolant and between light receiving end of plastic optical fiber and light source, the visible light that light source sends passes liquid coolant and infrared light filtration substrate is radiated on the light-receiving end of plastic optical fiber.
In the technique scheme, the part that described " light receiving end of plastic optical fiber " refers to be subjected to the face of illumination on the plastic optical fiber or be subjected to illumination, can be interpreted as the light-receiving end of a plastic optical fiber, also can be interpreted as the light-receiving end set that many plastic optical fibers are twisted into each optical fiber behind the optical cable.Described " liquid that is transparence at least in normal operation " refers to that liquid is transparency liquid in normal operation, and can be transparency liquid under abnormal operating state, also can be translucent liquid or opaque liquid.Described " liquid of transparence " is that can to pass with visible light be main points, therefore can be interpreted as two kinds of colourless transparent liquid and colored transparent liquid.
In the technique scheme, described liquid coolant can be working fluid.Described working fluid can also can be the open loop working fluid for circulating liquid.The circulation of described working fluid can also can be the forced circulation mode for the thermal convection self-circulation mode.Described liquid coolant can be water, also can be transparent mixed liquor.
In the technique scheme, described infrared light filters substrate and can be immersed in the liquid coolant, also can substitute the transparent chamber wall of cooling liquid container.
Principle of work of the present invention is: with the liquid that is transparence at least in normal operation as heat eliminating medium, in light path, be provided with the infrared light that contacts with liquid coolant and filter substrate, when the light-receiving end of plastic optical fiber immerses liquid coolant, the infrared light major part that light source sends is filtered substrate by infrared light and is stopped that (reflection) fall, visible light passes on the light-receiving end that liquid coolant is radiated at plastic optical fiber, make the plastic optical fiber end luminous or side is luminous, a spot of infrared light passes and filters the light-receiving end that substrate and liquid coolant shine plastic optical fiber, the heat of being assembled can be absorbed by the liquid coolant of submergence light receiving end of plastic optical fiber and distribute, thereby make the light-receiving end cooling of plastic optical fiber, simultaneously, infrared light filters the liquid coolant that heat that substrate produces by illumination also is in contact with it and takes away.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
1. the present invention adopts liquid cooling mode and the superimposed technical scheme of infrared light optical filtering, place the infrared light optical filter between optical fiber end and the light source most heat (infrared ray) can be stopped to fall, a small amount of infrared light sees through infrared light and filters the light-receiving end that substrate shines plastic optical fiber, the heat of its gathering liquid that also can be cooled is taken away fast, thereby improve the cooling effectiveness of light-receiving end greatly, reduce the temperature of light-receiving end, even the illumination energy of light receiving end of plastic optical fiber light source significantly increases, and light receiving end of plastic optical fiber still can be in normal operating conditions (heat resisting temperature of plastic optical fiber is 70 ℃), that is to say this moment the light-receiving end temperature still＜70 ℃, thereby can increase substantially the luminosity of plastic optical fiber and pass electrical distance, so the present invention has significant technical progress and outstanding characteristics.
2. be subjected to the explosion easily of intense light source irradiation back because infrared light filters substrate, the increase of illumination intensity is limited when adopting this optical filtering filter type.And technical solution of the present invention is used liquid cooling method and the stack of infrared light filter method, and infrared light filters substrate and contacts with liquid coolant, therefore the back infrared light that superposes filters on-chip heat and also can cool off by liquid coolant, reduced the working temperature that infrared light filters substrate, overcome the defective of the easy explosion of prior art mid-infrared light filtration substrate, can further increase the intensity of illumination of light source, thereby obtain better effect.
3. because the inventive method can increase substantially the luminosity and the biography electrical distance of plastic optical fiber, therefore can break away from the limitation of prior art plastic optical fiber luminosity and biography electrical distance deficiency, really become in the fields such as light decoration, picture-text advertisement and lighting decoration controlled an emerging family with remarkable technical characteristic, unique visual effects.
4. when plastic optical fiber is as light decoration and picture-text advertisement use, for luminosity and its flexibility of maintenance that improves it adopts many plastic optical fibers to be twisted into optical cable formation luminophor mostly, and near the many heat radiations in the stranded light-receiving end center that constitutes of plastic optical fiber are more difficult, after the utilization technical solution of the present invention, not only solved this technical barrier but also obtained good effect.
5. because the described liquid coolant of technical solution of the present invention can be working fluid.Described working fluid can also can be the open loop working fluid for circulating liquid.The circulation of described working fluid can also can be the forced circulation mode for the thermal convection self-circulation mode.Therefore further improved cooling effect, thereby can further improve the luminosity of plastic optical fiber and pass electrical distance.
6. because technical solution of the present invention good cooling results and enforcement are simple, and cost is low, has tangible practical value and creative significantly.
Accompanying drawing 1 is the structural representation that liquid coolant of the present invention adopts thermal convection self-loopa type of flow cooling plastic optical fiber light-receiving end;
Accompanying drawing 2 is the structural representation that liquid coolant of the present invention adopts open loop type of flow cooling plastic optical fiber light-receiving end;
Accompanying drawing 3 is a kind of embodiment structural representation that liquid coolant of the present invention adopts forced circulation type of flow cooling plastic optical fiber light-receiving end;
Accompanying drawing 4 is the another embodiment structural representation that liquid coolant of the present invention adopts forced circulation type of flow cooling plastic optical fiber light-receiving end;
Accompanying drawing 5 is located at the structural representation that superposes in the liquid coolant for infrared light of the present invention filters substrate.
Among the above figure, [1]. light-receiving end; [2]. liquid coolant; [3]. light source; [4]. the transparent chamber wall; [5]. cooling chamber; [6]. water tank; [7] pump; [8]. infrared light filters substrate.
Embodiment one: referring to accompanying drawing 1, a kind of cooling means of light receiving end of plastic optical fiber, adopt liquid cooling mode and infrared light to filter the mode of stack, with the transparency liquid is liquid coolant [2], the light-receiving end [1] of moulding section's optical fiber is immersed in the transparent liquid coolant [2], the visible light that light source [3] sends passes on the light-receiving end [1] that transparent liquid coolant [2] is radiated at plastic optical fiber, infrared light filtration substrate [8] contacts with liquid coolant [2] and is positioned between light receiving end of plastic optical fiber [1] and the light source [3], described liquid coolant [2] adopts the thermal convection self-circulation mode, and described transparency liquid is water or mixing material.Method of the present invention can realize with following cooling device: described cooling device is made up of cooling chamber [5], water tank [6] and water, cooling chamber [5] constitutes the linker that a circulation is communicated with water tank [6], cooling chamber [5] is provided with a water inlet and a water delivering orifice, and the water delivering orifice position is higher than water inlet position; Also be provided with a water inlet and a water delivering orifice on the water tank [6], and water inlet position is higher than water delivering orifice, the water delivering orifice on the cooling chamber [5] is connected with water inlet on the water tank [6], and the water inlet on the cooling chamber [5] is connected with water delivering orifice on the water tank [6]; In the described linker water is housed, its equipped amount is as the criterion so that the water yield in the linker is capable of circulation; The plane of illumination that is subjected to of described cooling chamber [5] is made transparent chamber wall [4] with clear glass, and described transparent chamber wall [4] directly constitutes the stack type of cooling that liquid cooling and infrared light filter thus for infrared light filters substrate.The light-receiving end [1] of plastic optical fiber (or plastic optical fiber cable) stretches in the cooling chamber [5], and be positioned between the water inlet and water delivering orifice of cooling chamber [5], the visible light that light source [3] sends passes on the transparent chamber wall [4] of cooling chamber [5] and the light-receiving end [1] that water shines plastic optical fiber, the heat that the light-receiving end of plastic optical fiber [1] is subjected to be assembled after the illumination is absorbed by light-receiving end [1] water on every side, because expanding rapidly and move upward in water heat absorption back, flows so the water in the linker can form the thermal convection self-loopa.
Embodiment two: referring to accompanying drawing 3, Fig. 4, a kind of cooling means of light receiving end of plastic optical fiber, adopt liquid cooling mode and infrared light to filter the mode of stack, with the transparency liquid is liquid coolant [2], the light-receiving end [1] of plastic optical fiber is immersed in the liquid coolant [2], the visible light that light source [3] sends passes on the light-receiving end [1] that liquid coolant [2] is radiated at plastic optical fiber, infrared light filtration substrate [8] contacts with liquid coolant [2] and is positioned between light receiving end of plastic optical fiber [1] and the light source [3], described liquid coolant [2] adopts pressurization forced circulation mode, and described transparency liquid is a water.Method of the present invention can realize with following cooling device: described cooling device is made up of cooling chamber [5], pump [7], water tank [6] and water, cooling chamber [5] constitutes the linker that a circulation is communicated with water tank [6], and cooling chamber [5] is provided with a water inlet and a water delivering orifice; Also be provided with a water inlet and a water delivering orifice on the water tank [6], the water delivering orifice on the cooling chamber [5] is connected with water inlet on the water tank [6], and the water inlet on the cooling chamber [5] is connected with water delivering orifice on the water tank [6]; Described pump [7] is located on the water inlet or water delivering orifice of water tank, in the described linker water is housed, and its equipped amount is as the criterion so that the water yield in the linker is capable of circulation; The plane of illumination that is subjected to of described cooling chamber [5] is made transparent chamber wall [4] with clear glass, the light-receiving end [1] of plastic optical fiber (or plastic optical fiber cable) stretches in the cooling chamber [5], and be positioned between the water inlet and water delivering orifice of cooling chamber [5], the visible light that light source [3] sends passes on the transparent chamber wall [4] of cooling chamber [5] and the light-receiving end [1] that water shines plastic optical fiber, the heat that the light-receiving end of plastic optical fiber [1] is subjected to be assembled after the illumination is absorbed by light-receiving end [1] water on every side, owing to the effect that forces of pump [7], the water formation in the linker is circulated.Can filter substrate with infrared light and replace described transparent chamber wall [4], directly constitute the stack type of cooling that liquid cooling and infrared light filter thus; Also can in described cooling chamber [5], put into infrared light and filter substrate [8], and infrared light filtration substrate [8] is positioned between light receiving end of plastic optical fiber [1] and the transparent chamber wall [4], just constituted the stack type of cooling that liquid cooling shown in the accompanying drawing 5 and infrared light filter.
Embodiment three: referring to accompanying drawing 2, a kind of cooling means of light receiving end of plastic optical fiber, adopt liquid cooling mode and infrared light to filter the mode of stack, with the transparency liquid is liquid coolant [2], the light-receiving end [1] of plastic optical fiber is immersed in the liquid coolant [2], the visible light that light source [3] sends passes on the light-receiving end [1] that liquid coolant [2] is radiated at plastic optical fiber, infrared light filtration substrate [8] contacts with liquid coolant [2] and is positioned between light receiving end of plastic optical fiber [1] and the light source [3], described liquid coolant [2] adopts the open loop type of flow, and described transparency liquid is a water.Method of the present invention can realize with following cooling device: described cooling device is made of cooling chamber [5], cooling chamber [5] is provided with a water inlet and a water delivering orifice, water inlet is connected with running water pipe, the plane of illumination that is subjected to of described cooling chamber [5] is made transparent chamber wall [4] with clear glass, described transparent chamber wall [4] directly constitutes the stack type of cooling that liquid cooling and infrared light filter thus for infrared light filters substrate.The light-receiving end [1] of plastic optical fiber (or plastic optical fiber cable) stretches in the cooling chamber [5], and be positioned between the water inlet and water delivering orifice of cooling chamber [5], the visible light that light source [3] sends passes on the transparent chamber wall [4] of cooling chamber [5] and the light-receiving end [1] that water shines plastic optical fiber, the heat that the light-receiving end of plastic optical fiber [1] is subjected to be assembled after the illumination is absorbed by light-receiving end [1] water on every side, and discharges with water delivering orifice.
Claims (6)
1. the cooling means of a light receiving end of plastic optical fiber, adopt the liquid cooling mode, with the liquid that is transparence at least in normal operation is liquid coolant [2], the light-receiving end [1] of plastic optical fiber is immersed in the liquid coolant [2], the visible light that light source [3] sends passes on the light-receiving end [1] that liquid coolant [2] is radiated at plastic optical fiber, it is characterized in that: adopt described liquid cooling and infrared light to filter the mode of stack, and infrared light filters substrate [8] and contacts with liquid coolant [2] and be positioned between light receiving end of plastic optical fiber [1] and the light source [3].
2. cooling means according to claim 1 is characterized in that: described liquid coolant [2] is a working fluid.
3. cooling means according to claim 2 is characterized in that: described working fluid is for circulating liquid.
4. cooling means according to claim 3 is characterized in that: the circulation of described working fluid is the thermal convection self-circulation mode.
5. cooling means according to claim 3 is characterized in that: the circulation of described working fluid is the forced circulation mode.
6. cooling means according to claim 2 is characterized in that: described working fluid is the open loop working fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97106702 CN1057843C (en) | 1997-11-08 | 1997-11-08 | Cooling method for light receiving end of plastic optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97106702 CN1057843C (en) | 1997-11-08 | 1997-11-08 | Cooling method for light receiving end of plastic optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1178910A CN1178910A (en) | 1998-04-15 |
| CN1057843C true CN1057843C (en) | 2000-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97106702 Expired - Fee Related CN1057843C (en) | 1997-11-08 | 1997-11-08 | Cooling method for light receiving end of plastic optical fiber |
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| CN (1) | CN1057843C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103339438B (en) * | 2010-11-29 | 2017-07-04 | 创世纪健光公司 | Filter and hand held heat light containing liquid |
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- 1997-11-08 CN CN 97106702 patent/CN1057843C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1178910A (en) | 1998-04-15 |
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