CN101251239A - Large caliber air-core photon crystal optical fiber light pipe illumination device - Google Patents
Large caliber air-core photon crystal optical fiber light pipe illumination device Download PDFInfo
- Publication number
- CN101251239A CN101251239A CNA2008100595384A CN200810059538A CN101251239A CN 101251239 A CN101251239 A CN 101251239A CN A2008100595384 A CNA2008100595384 A CN A2008100595384A CN 200810059538 A CN200810059538 A CN 200810059538A CN 101251239 A CN101251239 A CN 101251239A
- Authority
- CN
- China
- Prior art keywords
- air
- core
- optical fiber
- light pipe
- illumination device
- 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.)
- Granted
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention discloses a heavy caliber air core photon crystal optical fiber light guide tube illumination device, which belongs to the illumination device technical field. Light sources are symmetrically arranged on the left end and the right end of a light guide tube via a reflection bowl. The light guide tube adopts heavy caliber air core photon crystal optical fiber, the diameter of the optical fiber is 8mm to 150 mm, the diameter of the center air core is 7 mm to 149 mm, and the number of the air hole covering layers at the periphery of the air core is 25 to 35 layers, and the diameter of the air hole is 25 to 30 [mu]m. The sector region of the illumination angle of the bottom of the light guide tube preserves 2 to 4 air hole covering layers from the inside to the outside. The outer layer has a solid structure. The illumination device uses the light leakage of the heavy caliber air core photon crystal optical fiber to carry out light guiding and illumination so as to generate uniform illuminating white light. Large area uniform illumination can be realized, so that the illuminated region is bright and has no shadows. The illumination device with characteristics of energy saving, convenient maintenance, simple structure, stable running is capable of meeting the illumination requirements of factories, mines, large exhibition halls, subway stations, multi-floor shops, etc.
Description
Technical field
The invention belongs to the technical field of lighting apparatus, be specifically related to a kind of large caliber air-core photon crystal optical fiber light pipe illumination device.
Background technology
In recent years, basic change has taken place in lighting electric principle, the field of illuminating device technological innovation is not only improving the luminous efficiency of luminescent device, is increasing the service life, improves aspect such as white light colour rendering index tremendous development has been arranged, and realized carrying light with light pipe, and along the continuous bright dipping of light pipe, i.e. light pipe illumination device.Current useful film, transparent glass tube and polymer are as the light pipe device.The advantage of film be inexpensive, easily be welded into the light pipe of inflation, shortcoming is easy air leakage failure; The advantage of transparent glass tube be easy to maintenance, light efficiency is high, shortcoming is to break easily, the light distributing homogeneity is bad; The advantage of polymer is that the life-span is long, and is easy to maintenance, but efficiently low, and the light loss consumption is higher.
Summary of the invention
At problems of the prior art, the object of the present invention is to provide a kind of technical scheme of large caliber air-core photon crystal optical fiber light pipe illumination device, the realization large tracts of land is evenly thrown light on, and makes illuminated area bright shadow-free.
Described large caliber air-core photon crystal optical fiber light pipe illumination device, it is characterized in that two ends, the light pipe left and right sides are symmetrical arranged light source by reflector, described light pipe adopts large caliber air-core photon crystal optical fiber, fibre diameter is 8mm～150mm, center air-core diameter is 7mm～149mm, air-core peripheral air hole covering is 25～35 layers, the airport diameter is 25～30 microns, the sector region of light pipe soffit lighting angle outwards keeps layer 2-4 airport covering from the lining, skin is a solid construction.
Described large caliber air-core photon crystal optical fiber light pipe illumination device is characterized in that the reflector madial wall is coated with high-reflecting film.
Described large caliber air-core photon crystal optical fiber light pipe illumination device is characterized in that light source adopts electricity-saving lamp, Halogen lamp LED or highlighted white light LEDs.
Described large caliber air-core photon crystal optical fiber light pipe illumination device, when it is characterized in that the air-core diameter is 7mm～15mm, light source is of coupled connections by coupled lens and the light pipe that front end is equipped with.
Described large caliber air-core photon crystal optical fiber light pipe illumination device, when it is characterized in that the air-core diameter is 16mm～149mm, light source directly is placed in the air-core of light pipe.
Described large caliber air-core photon crystal optical fiber light pipe illumination device is characterized in that light pipe adopts large caliber air-core cobweb type photonic crystal fiber.
Described large caliber air-core photon crystal optical fiber light pipe illumination device, when it is characterized in that the air-core diameter is 7mm～8mm, the employing numerical aperture is 0.8 coupled lens, when the air-core diameter is 8mm～10mm, the employing numerical aperture is 0.65 or 60 coupled lens, when the air-core diameter was 10mm～15mm, adopting numerical aperture was 0.25 or 40 coupled lens.
The utility model with highlighted white light LEDs luminous tube or electricity-saving lamp, Halogen lamp LED lamp as light source, be coupled in the large caliber air-core photon crystal optical fiber light pipe from end face, utilize light leakage the carrying out leaded light illumination of large caliber air-core photon crystal optical fiber, produce the evenly white light of illumination, can realize that large tracts of land evenly throws light on, make illuminated area bright shadow-free, energy-conservation, easy to maintenance, and simple in structure, running is stablized, and can satisfy place lighting demands such as factories and miness, hall, large-scale exhibition center, subway station, multilayer shop.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 requires the large caliber air-core photon crystal optical fiber schematic cross-section of processing according to light angle;
Fig. 3 requires the large caliber air-core cobweb type photonic crystal fiber end view of processing according to light angle;
The leakage loss figure of the different airport number of rings of Fig. 4 correspondence.
The specific embodiment
Two ends, light pipe 4 left and right sides are symmetrical arranged light source 2,2a, light source 2,2a adopt electricity-saving lamp, Halogen lamp LED or highlighted white light LEDs, light source 2,2a outside are equipped with reflector 1,1a advances light pipe 4 with optically-coupled, the madial wall of reflector 1,1a is coated with high-reflecting film, reflection coefficient is more than 95%, to improve the utilization rate of light source.Light pipe 4 adopts large caliber air-core photon crystal optical fiber, also can adopt large caliber air-core cobweb type photonic crystal fiber.Fibre diameter is of a size of 8mm～150mm, center air-core 5 is of a size of 7mm～149mm, air-core 5 peripheral air hole coverings are 25～35 layers, each airport 6 diameter is 25～30 microns, according to concrete light angle requirement, in the sector region 7 of light angle, count from center air-core 5, outwards keep 2～4 layer of air hole coverings from the lining, remaining is solid construction.When air-core 5 diameters were 7mm～15mm, coupled lens 3,3a and light pipe 4 that light source 2,2a are equipped with by front end were of coupled connections.Coupled lens 3,3a are the aperture lens of big numerical value, when air-core 5 diameters are 7mm～8mm, the employing numerical aperture is 0.8 coupled lens 3,3a, when air-core 5 diameters are 8mm～10mm, the employing numerical aperture is 0.65 or 60 coupled lens 3,3a, when air-core 5 diameters were 10mm～15mm, adopting numerical aperture was 0.25 or 40 coupled lens 3,3a.When air-core 5 diameters were 16mm～149mm, light source 2,2a directly were placed in the air-core 5 of light pipe 4.During work, air-core photon crystal optical fiber is advanced in the optically-coupled that light source 2,2a send, and the leakage loss of photonic crystal fiber is: L
Leak=Ca
N, wherein, a is a constant, and by optical fiber concrete structure and pattern decision, C is a constant, and empirical value is a=0.141033, C=4.6093 * 10
7, N represents covering airport number of rings, airport number of rings and leakage loss relation are as shown in Figure 4.The cardinal principle of light pipe 4 is to utilize the light of photonic crystal to leak the realization illumination, and as shown in Figure 4, when the airport number of rings was 4 rings, leakage was about 10
4DB/km, when being reduced to 3 rings, leakage is about 10
5DB/km; For the demand that realizes that the light pipe emergent light all throws light on down, when concrete the making, adopt following method: with air cladding layer is air-core photon crystal optical fiber about 30 layers, diameter range is 8mm to 150mm, according to the light angle requirement, and light angle as shown in Figure 2, in this light angle sector region, count from the center air-core, outwards keep 2～4 layer of air hole coverings from the lining, skin is a solid construction.If light angle is θ, light pipe length is 1m, be that fiber lengths also is about 1m, the light that requires to send for light source has almost all leaked through behind the optical fiber, be that its leakage loss is 20dB, leak owing to only allow the θ angle direction produce,, can obtain required air orifice ring number according to Fig. 4 then so be about 7200/ θ dB for the leakage loss of whole optical fiber.For example, then keep about 2～3 coverings if light angle is 120 degree; In order to manifest the even illumination of light in leakage process, adopt the two ends symmetrical manner simultaneously, both sides are sent light by light source simultaneously and are leaked through optical fiber, realize when arriving the optical fiber other end all having leaked, and realize evenly illumination.Because optical fiber bottom air cladding layer tails off, so cause part light to have leakage situation, can utilize leak light to realize illumination, simultaneously in order to guarantee the uniformity of light at whole fiber lengths scope internal leakage optical illumination, adopt symmetrical mounting to carry light to enter optical fiber simultaneously at the device right-hand member, realize the even illumination of whole device.
Claims (7)
1. large caliber air-core photon crystal optical fiber light pipe illumination device, it is characterized in that light pipe (4) two ends, the left and right sides are by reflector (1,1a) be symmetrical arranged light source (2,2a), described light pipe (4) adopts large caliber air-core photon crystal optical fiber, fibre diameter is 8mm～150mm, center air-core (5) diameter is 7mm～149mm, air-core (5) peripheral air hole covering is 25～35 layers, airport (6) diameter is 25～30 microns, the sector region (7) of light pipe (4) soffit lighting angle outwards keeps 2～4 layer of air hole coverings from the lining, skin is a solid construction.
2. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 1 is characterized in that reflector (1,1a) madial wall is coated with high-reflecting film.
3. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 1 is characterized in that light source (2,2a) adopts electricity-saving lamp, Halogen lamp LED or highlighted white light LEDs.
4. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 1, when it is characterized in that air-core (5) diameter is 7mm～15mm, the coupled lens that light source (2,2a) is equipped with by front end (3,3a) is of coupled connections with light pipe (4).
5. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 1, when it is characterized in that air-core (5) diameter is 16mm～149mm, light source (2,2a) directly is placed in the air-core (5) of light pipe (4).
6. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 1 is characterized in that light pipe (4) adopts large caliber air-core cobweb type photonic crystal fiber.
7. large caliber air-core photon crystal optical fiber light pipe illumination device as claimed in claim 4, when it is characterized in that air-core (5) diameter is 7mm～8mm, adopting numerical aperture is 0.8 coupled lens (3,3a), when air-core (5) diameter is 8mm～10mm, adopting numerical aperture is 0.65 or 60 coupled lens (3,3a), when air-core (5) diameter was 10mm～15mm, adopting numerical aperture was 0.25 or 40 coupled lens (3,3a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100595384A CN101251239B (en) | 2008-01-31 | 2008-01-31 | Large caliber air-core photon crystal optical fiber light pipe illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100595384A CN101251239B (en) | 2008-01-31 | 2008-01-31 | Large caliber air-core photon crystal optical fiber light pipe illumination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251239A true CN101251239A (en) | 2008-08-27 |
| CN101251239B CN101251239B (en) | 2010-06-23 |
Family
ID=39954764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100595384A Expired - Fee Related CN101251239B (en) | 2008-01-31 | 2008-01-31 | Large caliber air-core photon crystal optical fiber light pipe illumination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101251239B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221181A (en) * | 2011-05-06 | 2011-10-19 | 宁波市佰仕电器有限公司 | Structure for solving problem of light emitting angle dark area |
| CN103375779A (en) * | 2013-07-31 | 2013-10-30 | 德清恒铖户外休闲用品有限公司 | Lighting mechanism of light umbrella |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268950C (en) * | 2001-01-25 | 2006-08-09 | 全波导通信公司 | Low-loss photonic crystal waveguide having large core radius |
| CN1396467A (en) * | 2002-05-18 | 2003-02-12 | 哈尔滨工程大学 | Hollow optical fibre of photon coystal plastics and its preparing process |
-
2008
- 2008-01-31 CN CN2008100595384A patent/CN101251239B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221181A (en) * | 2011-05-06 | 2011-10-19 | 宁波市佰仕电器有限公司 | Structure for solving problem of light emitting angle dark area |
| CN103375779A (en) * | 2013-07-31 | 2013-10-30 | 德清恒铖户外休闲用品有限公司 | Lighting mechanism of light umbrella |
| CN103375779B (en) * | 2013-07-31 | 2016-08-10 | 德清恒铖户外休闲用品有限公司 | A kind of lighting mechanism of lamp light umbrella |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101251239B (en) | 2010-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202813226U (en) | Flexible light-emitting diode (LED) light guide plate | |
| CN105627191A (en) | Light emitting module | |
| CN101251239B (en) | Large caliber air-core photon crystal optical fiber light pipe illumination device | |
| CN201935119U (en) | Wide-angle grading lens used for LED (light-emitting diode) and lamp box | |
| CN101614360B (en) | Tunnel light arrangement method combining natural light and artificial light | |
| CN207162341U (en) | A kind of lighting device | |
| CN102454942B (en) | Light reflecting cup, down lamp and lighting system | |
| CN205480832U (en) | A lens for arc -shaped lampshade's lighting device | |
| CN202813225U (en) | Novel light-emitting diode (LED) dodging board | |
| CN101495798A (en) | Diffusing light system with light collector | |
| CN206429903U (en) | A kind of Dimmable LED wick lamp | |
| CN202473141U (en) | Line-shaped lamp box | |
| CN204879948U (en) | Energy -conserving lamp shade of LED | |
| CN201487678U (en) | Rapid UV curing equipment | |
| CN204853222U (en) | Lamps and lanterns high reflection film and lamps and lanterns | |
| CN204853047U (en) | Lamp of reflector is equipped with | |
| CN204853143U (en) | Lamps and lanterns of diffuse reflection reflector are equipped with | |
| CN204829545U (en) | Casual episcopic illumination device | |
| CN204829415U (en) | LED lamps and lanterns of high reflection film reflector are equipped with | |
| CN204829414U (en) | Light with secondary reflection reflector | |
| CN204829416U (en) | Lamps and lanterns of high reflection film reflector are equipped with | |
| CN103899985A (en) | Lamp | |
| CN204829614U (en) | Curtain facade corner lighting device | |
| CN214790728U (en) | Lighting device | |
| CN220303494U (en) | Anti-dazzle glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20110131 |