CN108050406A - A kind of high-power illumination equipment and means of illumination - Google Patents
A kind of high-power illumination equipment and means of illumination Download PDFInfo
- Publication number
- CN108050406A CN108050406A CN201711174342.5A CN201711174342A CN108050406A CN 108050406 A CN108050406 A CN 108050406A CN 201711174342 A CN201711174342 A CN 201711174342A CN 108050406 A CN108050406 A CN 108050406A
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- laser beam
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- 238000005286 illumination Methods 0.000 title claims abstract description 68
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 10
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000003491 array Methods 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/69—Details of refractors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of high-power illumination equipment, which includes：Main laser array, main laser array send main laser beam；At least one secondary laser array positioned at main laser beam optical axis periphery, secondary laser array send time laser beam；It is arranged on main laser beam optical axis, for the main laser beam convergence device converged to main laser Shu Jinhang；It is at least one to be oppositely arranged with time laser array, and positioned at secondary between laser array and main laser beam optical axis, for being converged to secondary laser beam, and the attenuator for making the direct of travel of time laser beam consistent with the direct of travel of main laser beam；It is arranged on the optical axis of main laser beam, for main laser beam and time laser beam to be pooled to the first convex lens of a branch of mixing laser beam injection；The first convex lens light extraction one side is arranged at, the flourescent sheet for generating illumination light is excited by hybrid laser.The present invention high-power illumination equipment have the advantages that brightness compared with it is high, safe, low energy consumption, equipment volume is small.
Description
Technical field
The present invention relates to technical fields of lighting fixtures, and in particular to a kind of high-power illumination equipment and means of illumination.
Background technology
In high-power illumination field, the high-power illumination equipment more early occurred is generally using xenon lamp, mercury lamp or Metal halogen lamp etc.
Gas discharge lighting apparatus.The irradiant penetration power of these lighting apparatus is better than the lamp of high color temperature, can improve night or big
Driving, navigation and the industrial security of greasy weather gas, but such gas-lighting equipment not only high energy consumption, the service life is also than half
Conductor light source short number times, and its environmental suitability is poor, volume is big, easily bursts.And for LED (Light Emitting
Diode light emitting diodes) light source limited be subject to brightness and production technology, it can not still substitute gas discharge lighting apparatus, mesh
Preceding most of lamps and lanterns are still just using traditional high energy consumption light source such as xenon lamp, mercury lamp, Metal halogen lamp or halogen lamp.
The content of the invention
It is an object of the invention to provide a kind of high-power illumination equipment and means of illumination, are set to solve existing illumination
It is standby that there are security is low, high energy consumption, the low and bulky problem of brightness.
To achieve the above object, the present invention provides a kind of high-power illumination equipment, and the high-power illumination equipment includes：It is main
Laser array, the main laser array send main laser beam；
At least one secondary laser array positioned at the main laser beam optical axis periphery, the secondary laser array send time laser
Beam；
It is arranged on main laser beam optical axis, for the main laser beam convergence device converged to main laser Shu Jinhang；
It is at least one to be oppositely arranged with the secondary laser array, and positioned at the secondary laser array and main laser beam optical axis it
Between, for being converged to secondary laser beam, and make the direct of travel of time laser beam consistent with the direct of travel of main laser beam
Attenuator；
It is arranged on the optical axis of main laser beam, for main laser beam and time laser beam to be pooled a branch of hybrid laser beam
The first convex lens gone out；
The first convex lens light extraction one side is arranged at, the flourescent sheet for generating illumination light is excited by hybrid laser.
Preferably, the main laser beam convergence device includes being arranged on the optical axis of main laser beam, and swashs close to the master
Second convex lens of optical arrays；And it is arranged at the first concavees lens between second convex lens and first convex lens.
Preferably, the non-rotational symmetry that the attenuator includes being arranged on the light direction of the secondary laser array is put down
Convex lens；It is arranged at the periphery of the main laser beam optical axis and the plane mirror having angle with main laser beam optical axis；It sets
The second concavees lens between the non-rotational symmetry planoconvex spotlight and the plane mirror.
Preferably, it is additionally provided with the 3rd convex lens between first convex lens and the flourescent sheet.
Preferably, illumination light camera lens is additionally provided on the light direction of the flourescent sheet, the illumination light camera lens is close to institute
The one end for stating flourescent sheet is provided with light well, and one end away from the flourescent sheet is provided with the second planar lens, the illumination light
Two the 4th convex lenses parallel to each other are set in camera lens.
Preferably, first concavees lens and the second concavees lens are plano-concave lens, the entering light one of first convex lens
Side is additionally provided with the first planar lens.
Correspondingly, another object of the present invention is to provide a kind of high-power illumination method, the high-power illumination side
Method comprises the following steps：
Step a converges secondary laser beam using the attenuator and the direct of travel of time laser beam is made to swash with main
The direct of travel of light beam is consistent；
Step b converges main laser beam and time laser beam using first convex lens, and synthesis mixing laser beam is simultaneously
It is projected to the flourescent sheet；
Step c, the flourescent sheet are excited by mixing laser beam and generate illumination light.
Preferably, following steps are also performed while the step a is performed：Utilize the main laser beam convergence device pair
Main laser Shu Jinhang is converged, and reduces the diameter of main laser beam.
Preferably, following steps are also performed while the step b is performed：Using the 3rd convex lens to described
Mixing laser beam after the convergence of one convex lens is converged again.
Preferably, following steps are also performed after the step c is performed：Increase illumination light using the illumination light camera lens
Diameter.
The invention has the advantages that：The high-power illumination equipment of the present invention by laser that multigroup laser array is sent come
Beam irradiates fluorescent plate, is excited the higher illumination light of beam excitation generation brightness to illuminate using fluorescent plate, while improves illumination and set
Standby security reduces the energy consumption of lighting apparatus, further, since not needing using discharge gas, the volume of lighting apparatus
It greatly reduces.
Description of the drawings
Fig. 1 is the structure diagram of high-power illumination equipment in the embodiment of the present invention 1.
Fig. 2 is the structure diagram of high-power illumination equipment in the embodiment of the present invention 2.
Fig. 3 is the flow chart of high-power illumination method of the present invention.
Specific embodiment
Following embodiment is not limited to the scope of the present invention for illustrating the present invention.
Embodiment 1
As shown in Figure 1, the high-power illumination equipment includes：Main laser array 1, secondary laser array 2, main laser beam convergence dress
Put 3, attenuator 4, the first convex lens 5, flourescent sheet 6 and illumination light camera lens 9.
Main laser array 1 is for sending main laser beam, in the present embodiment, what main laser array 1 was arranged in parallel by five
Laser constitution, but five lasers are not restricted to, five lasers can send five blue laser beams parallel to each other.
For secondary laser array 2 for sending time laser beam, secondary laser beam is also equally blue laser beam, secondary laser array 2 with
Main laser array 1 is identical laser array, and secondary laser array 2 is located at the periphery of main laser beam optical axis, main sharp in the present embodiment
The periphery setting of beam optical axis is not restricted to two laser arrays 2 there are two time laser array 2, meanwhile, two times are sharp
Optical arrays 2 are symmetrical on the optical axis of main laser beam, naturally it is also possible to and it is asymmetric, when two laser arrays 2 are asymmetric, respectively
It is different with the angle of main laser beam optical axis from two laser arrays 2 plane mirror being correspondingly arranged.
Main laser beam convergence device 3 is used to converge the main laser Shu Jinhang that main laser array 1 is sent, and subtracts its diameter
It is small.Main laser beam convergence device 3 includes the second convex lens 10 and the first concavees lens 11, and the second convex lens 10 is arranged at main laser beam
Optical axis on and close to the position of main laser array 1, the second convex lens 10 is planoconvex spotlight, and the convex surface of the second convex lens 10 is set
In close to the one side of main laser array 1.First concavees lens 11 are arranged between the second convex lens 10 and the first convex lens 5, and first
Concavees lens 11 are plano-concave lens, and the concave surface of the first concavees lens 11 is disposed in proximity to the one side of the second convex lens 10, main laser array 1
After the main laser beam sent passes sequentially through the second convex lens 10 and the first concavees lens 11 converge twice, the diameter of main laser beam compared with
Preceding reduction.
Attenuator 4 makes the direct of travel of time laser beam and the row of main laser beam for being converged to secondary laser beam
It is consistent into direction.Attenuator 4 is oppositely arranged with time laser array 2, the number of the quantity of attenuator 4 and time laser array 2
It measures identical, in the present embodiment, sets there are two attenuator 4, each attenuator 4 to be arranged at corresponding secondary laser battle array
Between the optical axis of row 2 and main laser beam, meanwhile, two attenuators 4 are symmetrical on the optical axis of main laser beam.Attenuator 4 is wrapped
Non-rotational symmetry planoconvex spotlight 12,13 and second concavees lens 14 of plane mirror are included, non-rotational symmetry planoconvex spotlight 12 is plano-convex
A part for lens, the curved surface of non-rotational symmetry planoconvex spotlight 12 are disposed in proximity to time 2 one side of laser array, and non-rotational symmetry is put down
Convex lens 12 is arranged on the light direction of time laser array 2, and two non-rotational symmetry planoconvex spotlights 12 are on main laser beam
Optical axis it is symmetrical.Plane mirror 13 is arranged at the periphery of main laser beam optical axis, and has angle with main laser beam optical axis, the folder
Angle value is determined that two plane mirrors 13 are symmetrical on the optical axis of main laser beam by the incident angle of secondary laser beam.Second is recessed
Mirror 14 is plano-concave lens, and the concave surface of the second concavees lens 14 is disposed in proximity to the one side of non-rotational symmetry planoconvex spotlight 12, and second is recessed
Lens 14 are arranged between non-rotational symmetry planoconvex spotlight 12 and plane mirror 13, two the second concavees lens 14 equally also on
The optical axis of main laser beam is symmetrical.Secondary laser beam successively carries out it by 12 and second concavees lens 14 of non-rotational symmetry planoconvex spotlight
After convergence, the diameter of secondary laser beam reduces, after the reflection using plane mirror 13, the direct of travel of secondary laser beam and master
The direct of travel of laser beam is consistent.
First convex lens 5 is used to main laser beam and time laser beam pooling a branch of mixing laser beam injection, the first convex lens
Mirror 5 is planoconvex spotlight, and the first convex lens 5 is arranged on the optical axis of main laser beam, and the convex surface of the first convex lens 5 is disposed in proximity to the
The one side of one concavees lens 11.
Flourescent sheet 6 is inorganic fluorescent piece 6 or ceramic fluorescent piece 6, and flourescent sheet 6 is arranged at the light extraction one of the first convex lens 5
Side, flourescent sheet 6 are excited by hybrid laser and generate illumination light.
Further, in order to increase the diameter of illumination light, illumination light camera lens 9 is additionally provided on the light direction of flourescent sheet 6,
Illumination light camera lens 9 is provided with light well close to one end of flourescent sheet 6, and the second planar lens 16 is equipped with away from 6 one end of flourescent sheet,
Two the 4th convex lenses 15 parallel to each other are set in illumination light camera lens 9, and the 4th convex lens 15 can be planoconvex spotlight or two-sided
Convex lens.Illumination light passes through the scattering of the 4th convex lens 15, and the diameter increase of illumination light can be such that high-power illumination equipment provides more
Big illumination zone.
Embodiment 2
The present embodiment based on embodiment 1, the present embodiment and embodiment 1 the difference is that, the first convex lens 5 with
The 3rd convex lens 8 is additionally provided between flourescent sheet 6.3rd convex lens 8 is planoconvex spotlight, and the 3rd convex lens 8 is also at leading
On the optical axis of laser beam, the convex surface of the 3rd convex lens 8 is disposed in proximity to the one side of the first convex lens 5.It is projected from the first convex lens 5
Mixing laser beam, it is converged again by the 3rd convex lens 8, makes the diameter smaller of mixing laser beam, it is made to project completely
On flourescent sheet 6, and then reduce the distance between 6 and first convex lens 5 of flourescent sheet.
Embodiment 3
As shown in Fig. 2, the present embodiment is based on embodiment 2, the present embodiment with embodiment 2 the difference is that, the
The entering light one side of one convex lens 5 is additionally provided with the first planar lens 7.
As shown in figure 3, a kind of high-power illumination method of also offer of the present invention, high-power illumination method includes following step
Suddenly：
Step a converges secondary laser beam using attenuator 4 and makes the direct of travel of time laser beam and main laser beam
Direct of travel it is consistent；
Attenuator 4 first converges secondary laser beam, reduces the diameter of time laser beam, then it is carried out to reflect it
Afterwards, the direct of travel for making time laser beam is consistent with the direct of travel of main laser beam.
At the same time, main laser Shu Jinhang is converged using main laser beam convergence device 3, reduces the diameter of main laser beam.
Step b converges main laser beam and time laser beam using first convex lens 5, synthesizes mixing laser beam
And it is projected to flourescent sheet 6；
First convex lens 5 converges main laser beam and time laser beam, synthesizes mixing laser beam so that mixing laser beam
Diameter reduce, further, using the 3rd convex lens 8 to the first convex lens 5 converge after mixing laser beam converged again
It is poly-, the diameter of mixing laser beam is made further to reduce, to ensure that mixing laser beam can be completely incident upon on flourescent sheet 6.
Step c, flourescent sheet 6 are excited by mixing laser beam and generate illumination light.
Further, in order to which high-power illumination equipment is made to provide the illumination zone of bigger, also utilized using illumination light camera lens 9
Scattering principle increases the diameter of illumination light, increases its range of exposures.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be modified or improved, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (10)
1. a kind of high-power illumination equipment, which is characterized in that the high-power illumination equipment includes：
Main laser array, the main laser array send main laser beam；
At least one secondary laser array positioned at the main laser beam optical axis periphery, the secondary laser array send time laser beam；
It is arranged on main laser beam optical axis, for the main laser beam convergence device converged to main laser Shu Jinhang；
It is at least one to be oppositely arranged with the secondary laser array, and between the secondary laser array and main laser beam optical axis,
For being converged to secondary laser beam, and the shrink beam for making the direct of travel of time laser beam consistent with the direct of travel of main laser beam
Device；
It is arranged on the optical axis of main laser beam, for main laser beam and time laser beam to be pooled what a branch of mixing laser beam projected
First convex lens；
The first convex lens light extraction one side is arranged at, the flourescent sheet for generating illumination light is excited by hybrid laser.
2. high-power illumination equipment according to claim 1, which is characterized in that the main laser beam convergence device includes setting
It is placed on the optical axis of main laser beam, and close to the second convex lens of the main laser array；And it is arranged at second convex lens
The first concavees lens between mirror and first convex lens.
3. high-power illumination equipment according to claim 1, which is characterized in that the attenuator includes being arranged at described
Non-rotational symmetry planoconvex spotlight on the light direction of secondary laser array；Be arranged at the periphery of the main laser beam optical axis and with master
The plane mirror that laser beam optical axis has angle；Be arranged at the non-rotational symmetry planoconvex spotlight and the plane mirror it
Between the second concavees lens.
4. high-power illumination equipment according to claim 3, which is characterized in that first convex lens and the flourescent sheet
Between be additionally provided with the 3rd convex lens.
5. high-power illumination equipment according to claim 3, which is characterized in that also set on the light direction of the flourescent sheet
Illumination light camera lens is equipped with, the illumination light camera lens is provided with light well close to one end of the flourescent sheet, away from the flourescent sheet
One end be provided with the second planar lens, two the 4th convex lenses parallel to each other are set in the illumination light camera lens.
6. high-power illumination equipment according to claim 5, which is characterized in that first concavees lens and the second concavees lens
It is plano-concave lens, the entering light one side of first convex lens is additionally provided with the first planar lens.
A kind of 7. high-power illumination method, which is characterized in that the high-power illumination method comprises the following steps：
Step a converges secondary laser beam using the attenuator and makes the direct of travel of time laser beam and main laser beam
Direct of travel it is consistent；
Step b converges main laser beam and time laser beam using first convex lens, synthesize mixing laser beam and by its
It is projected to the flourescent sheet；
Step c, the flourescent sheet are excited by mixing laser beam and generate illumination light.
8. high-power illumination method according to claim 7, which is characterized in that also held while the step a is performed
Row following steps：Main laser Shu Jinhang is converged using the main laser beam convergence device, reduces the diameter of main laser beam.
9. high-power illumination method according to claim 7, which is characterized in that also held while the step b is performed
Row following steps：Mixing laser beam after being converged using the 3rd convex lens to first convex lens is converged again.
10. high-power illumination method according to claim 9, which is characterized in that also performed after the step c is performed
Following steps：Utilize the diameter of illumination light camera lens increase illumination light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174342.5A CN108050406A (en) | 2017-11-22 | 2017-11-22 | A kind of high-power illumination equipment and means of illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174342.5A CN108050406A (en) | 2017-11-22 | 2017-11-22 | A kind of high-power illumination equipment and means of illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050406A true CN108050406A (en) | 2018-05-18 |
Family
ID=62120156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174342.5A Pending CN108050406A (en) | 2017-11-22 | 2017-11-22 | A kind of high-power illumination equipment and means of illumination |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084189A (en) * | 2018-06-29 | 2018-12-25 | 北京工业大学 | Long distance laser lamp optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574347A (en) * | 2012-07-25 | 2014-02-12 | 欧司朗股份有限公司 | Illumination apparatus with phosphor wheel |
| CN103775869A (en) * | 2012-10-18 | 2014-05-07 | 索尼公司 | Light source apparatus and image display apparatus |
| CN106195802A (en) * | 2016-09-03 | 2016-12-07 | 超视界激光科技（苏州）有限公司 | A kind of search lighting device |
| WO2017090496A1 (en) * | 2015-11-27 | 2017-06-01 | セイコーエプソン株式会社 | Light source device, illumination device, and projector |
| US20170199450A1 (en) * | 2014-06-12 | 2017-07-13 | Nec Display Solutions, Ltd. | Light source device and projector |
-
2017
- 2017-11-22 CN CN201711174342.5A patent/CN108050406A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574347A (en) * | 2012-07-25 | 2014-02-12 | 欧司朗股份有限公司 | Illumination apparatus with phosphor wheel |
| CN103775869A (en) * | 2012-10-18 | 2014-05-07 | 索尼公司 | Light source apparatus and image display apparatus |
| US20170199450A1 (en) * | 2014-06-12 | 2017-07-13 | Nec Display Solutions, Ltd. | Light source device and projector |
| WO2017090496A1 (en) * | 2015-11-27 | 2017-06-01 | セイコーエプソン株式会社 | Light source device, illumination device, and projector |
| CN106195802A (en) * | 2016-09-03 | 2016-12-07 | 超视界激光科技（苏州）有限公司 | A kind of search lighting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084189A (en) * | 2018-06-29 | 2018-12-25 | 北京工业大学 | Long distance laser lamp optical system |
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Application publication date: 20180518 |
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