CN218721303U - Double-tube laser conduction lighting system adopting echo blue light detection - Google Patents
Double-tube laser conduction lighting system adopting echo blue light detection Download PDFInfo
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- CN218721303U CN218721303U CN202121576979.9U CN202121576979U CN218721303U CN 218721303 U CN218721303 U CN 218721303U CN 202121576979 U CN202121576979 U CN 202121576979U CN 218721303 U CN218721303 U CN 218721303U
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Abstract
The utility model belongs to the technical field of illumination, specifically discloses a double-tube laser conduction lighting system adopting echo blue light detection, which comprises a double-tube laser conduction lighting system, an echo detection system, a control circuit and a power supply unit; optical fiber conduction is adopted, photoelectric separation is realized, and the illumination safety problem is improved; transmission type excitation is adopted, so that the light emitting efficiency and the service life of a blue light LD are improved, and the safety is improved; by adopting two blue light LDs, single-fiber energy can be effectively improved, the number of optical fibers is reduced, and construction cost is saved; the echo blue light detection is adopted, the light filtering system is adopted at the incident end of the transmission optical fiber, the reflected blue light is effectively transmitted to the photoelectric element PD, the light emitting condition can be monitored in time, and the safety is improved. The utility model relates to an adopt double-barrelled laser conduction lighting system of echo blue light detection has the light-emitting efficiency height, long service life, and security advantage such as high.
Description
Technical Field
The utility model belongs to the technical field of the illumination, especially, relate to an adopt double-barrelled laser conduction lighting system of echo blue light detection.
Background
The traditional illumination mainly adopts the mode that electricity is arranged in an area needing illumination, electric energy is converted into light through a photoelectric conversion chip, illumination is carried out after photoelectric conversion is achieved, safety accidents are easily caused due to the fact that photoelectric conversion is carried out in the illumination area, laser light conducts illumination, after the photoelectric conversion is achieved remotely, light with specific wavelength is transmitted to a place needing to be applied through optical fibers, the light with the specific wavelength is converted into needed white light through a fluorescent powder technology, and therefore electricity is not used in a use area, and photoelectric separation is achieved.
The laser light conduction illumination mainly uses light conduction, as the optical fiber adopts a quartz optical fiber, the fiber core is small, the optical fiber can be broken under the action of external force, after the optical fiber is broken, the whole illumination is in an unlighted state, if a power supply is not timely cut off, light with specific wavelength can be lightened for a long time at the broken position, the broken position is in a closed state, energy cannot be completely released, the light is easy to overheat under a long-time state, the heat reaches a certain level, the whole illumination system can be damaged, and a fire disaster or the damage of peripheral substances can be caused under the condition of overhigh heat.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adopt double-barrelled laser conduction lighting system of echo blue light detection to solve the technical problem who exists among the above-mentioned prior art.
In order to achieve the above purpose, the technical scheme of the utility model is that: a double-tube laser conduction lighting system adopting echo blue light detection comprises a double-tube laser conduction lighting system, an echo detection system, a control circuit and a power supply unit;
the double-tube laser conduction lighting system comprises two blue light emitting units, a beam combining mirror, a transmission optical fiber, a diffusion lens and a fluorescent cap; each blue light emitting unit includes a blue LD and a collimating lens; the transmission optical fiber comprises an incident end and an output end, wherein the incident end is provided with a ceramic ferrule APC, and the output end is provided with a ceramic ferrule PC; the blue light irradiated by each blue light LD enters the transmission optical fiber through the collimating lens, the beam combining mirror and the filtering system respectively and is transmitted to the output end of the transmission optical fiber through the transmission optical fiber; the beam combining mirror combines the blue lights of the two blue light LDs to the light filtering system and enters the transmission optical fiber through the light filtering system; the inclined angle of the inclined edge of the blue light incident end of the ceramic ferrule APC is 7-9 degrees; the output end of the transmission optical fiber is provided with a diffusion lens and a fluorescent cap, and blue light output by the ceramic ferrule PC penetrates through the diffusion lens and then irradiates the fluorescent cap and excites white light;
the echo detection system comprises a light filtering system and a photoelectric element PD, wherein the light filtering system can transmit the blue light reflected by the diffusion lens to the photoelectric element PD and can also transmit the blue light irradiated by the blue light LD; the blue light reflected by the diffusion lens is reflected to a photoelectric element PD through a light filtering system, and the photoelectric element PD performs echo detection on the reflected blue light;
the echo detection system is used for transmitting a signal detected by the photoelectric element PD to the control circuit; the control circuit outputs a control signal to control the power supply unit to power off and supply the blue LD after judging according to a blue light echo detection value of the echo detection system;
and when the change rate of the detected blue light echo detection value exceeds a third threshold value, the power supply is controlled to be switched off.
Further, the diffusion lens is a plano-concave lens, and the thickness of the diffusion lens is 3-5mm.
Furthermore, the fluorescent cap is made of silica gel and yellow fluorescent powder, the length of the fluorescent cap is 15-30mm, and the diameter of the fluorescent cap is 10-20mm.
Further, the blue light wavelength of the blue light LD is 450nm +/-50 nm.
The utility model discloses an echo detecting system theory of operation lies in: the transmission fiber output end adopts plano-concave lens, and the blue light that blue light LD sent can produce reflection light through plano-concave lens, and has adopted filtering system at the transmission fiber incident end, and the effectual blue light that will reflect back transmits photoelectric element PD on to detect the blue light-emitting condition, if transmission fiber fracture, the blue light that reflects back can form the sudden change, thereby reflection signal can form the sudden change, thereby can give the instruction of disconnected power.
The utility model relates to an adopt double-barrelled laser conduction lighting system of echo blue light detection's advantage as follows:
1. and optical fiber conduction is adopted, so that photoelectric separation is realized, and the illumination safety problem is improved.
2. The blue light wavelength is 450nm +/-50 nm, the power is high, and the quartz optical fiber is adopted for transmission, so that the optical fiber transmission illumination transmission distance is increased. The wavelength of blue light is 450nm +/-50 nm, and the single power can reach about 3-5W; the quartz fiber has a small loss value for light with a wavelength of 450nm +/-50 nm, and the loss of the quartz fiber is only about 6% of that of the plastic fiber, so that the quartz fiber can transmit a longer distance.
3. And by adopting transmission excitation, the light-emitting efficiency and the service life of the blue light LD are improved, and the safety is also improved. The output end adopts a diffusion lens to expand light, so that the light can be dispersed at various angles, the energy is dispersed in a space angle, the energy received by each unit point is small, the temperature is low, and the silica gel fluorescent cap can be adopted for excitation; in addition, the light is diffused by the diffusion lens, so that the safety can be improved, and potential safety hazards cannot be caused even if the fluorescent cap falls off due to low unit energy.
4. By adopting the ceramic ferrule APC and the ceramic ferrule PC, laser loss is small when laser is transmitted, the luminous efficiency is high, and the luminous efficiency is highest when the inclined angle of the inclined edge of the blue light incident end of the ceramic ferrule APC is 7-9 degrees.
5. When the thickness of the diffusion lens is 3-5mm, the laser excitation efficiency is highest.
6. By adopting two blue light LDs, single-fiber energy can be effectively improved, the number of optical fibers is reduced, and construction cost is saved.
7. The echo blue light detection system is adopted, and the light filtering system is adopted at the incident end of the transmission optical fiber, so that the reflected blue light is effectively transmitted to the photoelectric element PD, the blue light emergent condition is detected, the emergent condition can be monitored in time, the safety is improved, meanwhile, the damage of the reflected light to the blue light LD is reduced, and the service life of the blue light LD is prolonged; additionally, the utility model discloses echo blue light detecting system simple structure, low cost.
The utility model relates to an adopt double-barrelled laser conduction lighting system of echo blue light detection has the light-emitting efficiency height, long service life, and security advantage such as high.
Drawings
Fig. 1 is the utility model relates to an adopt echo blue light detection's double-barrelled laser conduction lighting system's schematic structure.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: 1. a blue LD; 2. a collimating lens; 3. a beam combining mirror; 4. a transmission optical fiber; 41. APC of ceramic ferrule; 42. a ceramic ferrule PC; 5. a diffusion lens; 6. a fluorescent cap; 7. a light filtering system; 8. a photoelectric element PD; 9. a control circuit; 10. a power supply unit.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment is basically as shown in the attached figure 1: a double-tube laser conduction lighting system adopting echo blue light detection comprises a double-tube laser conduction lighting system, an echo detection system, a control circuit 9 and a power supply unit 10; the double-tube laser conduction lighting system comprises two blue light emitting units, a beam combining mirror 3, a transmission optical fiber 4, a diffusion lens 5 and a fluorescent cap 6; each blue light emitting unit includes a blue light LD1 and a collimator lens 2; the transmission optical fiber 4 is a quartz optical fiber and comprises an incident end and an output end, wherein the incident end is provided with a ceramic ferrule APC 41, and the output end is provided with a ceramic ferrule PC 42; blue light irradiated by each blue light LD1 respectively enters the transmission optical fiber 4 through the collimating lens 2, the beam combining mirror 3 and the filtering system 7 and is transmitted to the output end of the transmission optical fiber 4 through the transmission optical fiber 4, and the wavelength of the blue light is 450nm +/-50 nm; the beam combining mirror 3 combines the blue light of the two blue light LD1 to the light filtering system 7 and enters the transmission optical fiber 4 through the light filtering system 7; the inclined angle of the inclined edge of the blue light incidence end of the ceramic ferrule APC 41 is 7-9 degrees; the output end of the transmission optical fiber 4 is provided with a diffusion lens 5 and a fluorescent cap 6, and blue light output by the ceramic ferrule PC42 penetrates through the diffusion lens 5, then irradiates on the fluorescent cap 6 and is excited to emit white light; the diffusion lens 5 is a plano-concave lens with the thickness of 3-5mm; the fluorescent cap 6 is made of silica gel and yellow fluorescent powder, the silica gel and the yellow fluorescent powder are manufactured through a die according to a certain proportion, and the length of the fluorescent cap 6 is 15-30mm, and the diameter of the fluorescent cap 6 is 10-20mm.
The echo detection system comprises a filter system 7 and a photoelectric element PD8, wherein the filter system can transmit the blue light reflected by the diffusion lens 5 to the photoelectric element PD8 and can also transmit the blue light irradiated by the blue light LD 1; the blue light reflected by the diffusion lens 5 is reflected to the photoelectric element PD8 through the optical filtering system 7, and the photoelectric element PD8 performs echo detection on the reflected blue light;
the echo detection system is used for transmitting a signal detected by the photoelectric element PD8 to the control circuit 9; the control circuit 9 outputs a control signal to control the power supply unit 10 to power off and supply the blue light LD1 after judging according to the blue light echo detection value of the echo detection system; and when the change rate of the detected blue light echo detection value exceeds a third threshold value, the power supply is controlled to be switched off. The blue light LD1, the photoelectric element PD8, and the power supply unit 10 are each connected to a control circuit 9.
The utility model discloses the blue light major part of pottery lock pin PC42 output can see through diffusion lens 5 and be used for the illumination, there is minimum part can be reflected transmission optical fiber 4 by diffusion lens 5, optical filtering system 7 has been adopted at 4 incident ends of transmission optical fiber, can be effectual with the blue light transmission that reflects back to photoelectric element PD8 on, thereby detect the blue light-emitting condition, if transmission optical fiber 4 splits, the blue light that reflects back can form the sudden change, thereby reflection signal can form the sudden change, thereby can give the instruction of disconnected power supply.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. The utility model provides an adopt double-barrelled laser conduction lighting system of echo blue light detection which characterized in that: the system comprises a double-tube laser conduction lighting system, an echo detection system, a control circuit and a power supply unit;
the double-tube laser conduction lighting system comprises two blue light emitting units, a beam combining mirror, a transmission optical fiber, a diffusion lens and a fluorescent cap; each blue light emitting unit includes a blue LD and a collimating lens; the transmission optical fiber comprises an incident end and an output end, wherein the incident end is provided with a ceramic ferrule APC, and the output end is provided with a ceramic ferrule PC; the blue light irradiated by each blue light LD enters the transmission optical fiber through the collimating lens, the beam combining mirror and the filtering system respectively and is transmitted to the output end of the transmission optical fiber through the transmission optical fiber; the beam combining mirror combines the blue lights of the two blue light LDs to the light filtering system and enters the transmission optical fiber through the light filtering system; the inclined angle of the inclined edge of the blue light incident end of the ceramic ferrule APC is 7-9 degrees; the output end of the transmission optical fiber is provided with a diffusion lens and a fluorescent cap, and blue light output by the ceramic ferrule PC penetrates through the diffusion lens and then irradiates the fluorescent cap and excites white light;
the echo detection system comprises a light filtering system and a photoelectric element PD, wherein the light filtering system can transmit the blue light reflected by the diffusion lens to the photoelectric element PD and can also transmit the blue light irradiated by the blue light LD; the blue light reflected by the diffusion lens is reflected to a photoelectric element PD through a light filtering system, and the photoelectric element PD performs echo detection on the reflected blue light;
the echo detection system is used for transmitting a signal detected by the photoelectric element PD to the control circuit; the control circuit outputs a control signal to control the power supply unit to power off and supply the blue LD after judging according to a blue light echo detection value of the echo detection system;
and when the change rate of the detected blue light echo detection value exceeds a third threshold value, the power supply is controlled to be switched off.
2. A dual tube laser conduction illumination system employing echo blue light detection as claimed in claim 1 wherein: the diffusion lens is a plano-concave lens, and the thickness of the diffusion lens is 3-5mm.
3. A dual tube laser conduction illumination system employing echo blue light detection as claimed in claim 1 wherein: the fluorescent cap is made of silica gel and yellow fluorescent powder, the length of the fluorescent cap is 15-30mm, and the diameter of the fluorescent cap is 10-20mm.
4. A dual tube laser conduction illumination system employing echo blue light detection as claimed in claim 1 wherein: the blue light wavelength of the blue light LD is 450nm +/-50 nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121576979.9U CN218721303U (en) | 2021-07-12 | 2021-07-12 | Double-tube laser conduction lighting system adopting echo blue light detection |
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| CN202121576979.9U CN218721303U (en) | 2021-07-12 | 2021-07-12 | Double-tube laser conduction lighting system adopting echo blue light detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339762A (en) * | 2021-07-12 | 2021-09-03 | 重庆云创江来光电科技有限公司 | Infrared detection multi-tube laser conduction lighting system |
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- 2021-07-12 CN CN202121576979.9U patent/CN218721303U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339762A (en) * | 2021-07-12 | 2021-09-03 | 重庆云创江来光电科技有限公司 | Infrared detection multi-tube laser conduction lighting system |
| CN113339762B (en) * | 2021-07-12 | 2024-08-27 | 重庆云创江来光电科技有限公司 | Infrared detection multitube laser conduction lighting system |
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