CN206280809U - Laser searchlight - Google Patents
Laser searchlight Download PDFInfo
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- CN206280809U CN206280809U CN201621036309.7U CN201621036309U CN206280809U CN 206280809 U CN206280809 U CN 206280809U CN 201621036309 U CN201621036309 U CN 201621036309U CN 206280809 U CN206280809 U CN 206280809U
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Abstract
The utility model provides a kind of laser searchlight, including laser diode, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer, scattering layer, the first luminous lens, the second luminous lens.Become two beams through transflection mirror light splitting from the laser of laser diode output, a branch of to be focused on phosphor powder layer by the first focus lens group, another beam is focused on scattering layer by the second focus lens group；The laser of fluorescence and scattering layer reflection from phosphor powder layer output is mixed to form last output light.Wherein, lens of first luminous lens comprising at least two different focals, they are fixed in a switching device, can be inserted into output light path the lens of different focal in turn by the effect of switching device, so as to change the angle of divergence of last output beam.By the structure of laser searchlight of the present utility model, the laser searchlight that far and near distance illumination is all suitable for can be obtained.
Description
Technical field
The utility model relates to lighting field, more particularly to using the special lighting field of laser lighting.
Background technology
At present, LED light sources are replacing traditional incandescent lamp and electricity-saving lamp turns into a kind of new lighting source, but LED
Limited brightness, the special application field of high bright light source, such as light of stage illumination, headlight for vehicles, Projection Display are needed at some
Deng field, LED cannot just meet and require that.The semiconductor laser diode homologous with LED, it may have efficiently, energy-conservation, environmental protection,
The advantage of long lifespan, using LASER Excited Fluorescence powder technology（Long-distance fluorescent powder technology）The spot light of super brightness can be obtained,
The spot light can be used on some special lighting fields.
LASER Excited Fluorescence powder technology is, by Laser Focusing to phosphor powder layer, to form a point light for luminous point very little
Source, fluorescent material is excited to produce the Stimulated Light of high brightness, generally excites yellow fluorescent powder, gold-tinted and the residue of generation by blue laser
Blue light form white light, then outgoing is collected by optical system.The characteristics of LASER Light Source, is, because laser energy is concentrated, because
And the spot light of super brightness can be formed, can be designed that the very small laser searchlighting of beam divergence angle using the spot light
Lamp.The beam divergence angle of laser searchlight is usual within 1 °, thus can form several kilometers of irradiation distance, but closely
During illumination, the so small angle of divergence is just improper.Further, since the complexity of LASER Excited Fluorescence powder technical scheme, in light
The convergence of laser should be considered when learning system design, the collection of fluorescence is considered again, especially the mixing of two kinds of light and even light, make
The focusing scheme that is used of traditional LED flashlight is no longer applicable.
The content of the invention
In order to obtain long distance illumination and closely illuminate the laser searchlight being all suitable for, the utility model proposes one kind
Light-source system structure, including laser diode, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer dissipate
Penetrate layer, the first luminous lens, the second luminous lens.First focus lens group and the second focus lens group symmetrically set with respect to transflection mirror
Put；Become two beams through transflection mirror light splitting from the laser of laser diode output, it is a branch of that fluorescence is focused on by the first focus lens group
On bisque, another beam is focused on scattering layer by the second focus lens group；The phosphor powder layer absorbs incident laser and by its turn
It is changed to the different fluorescence of wavelength therewith.Wherein, lens of first luminous lens comprising at least two different focals, they are fixed on
In one switching device, the lens of the different focal can be in turn inserted into by output light by the effect of the switching device
Lu Zhong.So, by the switching to the first luminous lens, thus it is possible to vary the angle of flare of last outgoing beam, so as to obtain correspondence
The light beam of different irradiation distances.
Brief description of the drawings
Fig. 1 is the structural representation of laser searchlight first embodiment of the present utility model；
Fig. 2 is when searchlight switches to the optical schematic diagram of closely illuminating bundle；
Fig. 3 is the structural representation of laser searchlight second embodiment of the present utility model.
Specific embodiment
Fig. 1 is the structural representation of the laser searchlight first embodiment of the utility model design.The laser searchlight bag
Laser diode 101 is included, transflection mirror 102, the first focus lens group 103, the second focus lens group 104, phosphor powder layer 105 dissipates
Penetrate layer 106, the first luminous lens 107, the second luminous lens 108, outgoing beam 109.Wherein, the He of the first focus lens group 103
Second focus lens group 104 is symmetrical arranged relative to transflection mirror 102.Collimation laser from the outgoing of laser diode 101 is used as entering
Laser beam is penetrated, first becomes two beams, a branch of entrance reflected light path, a branch of entrance transmitted light path through the light splitting of transflection mirror 102.Reflected light
First focus lens group 103 on road by transflection mirror Laser Focusing to phosphor powder layer 105, the second focus lens group of transmitted light path
104 by the Laser Focusing of reflected light path to scattering layer 106.Phosphor powder layer 105 is arranged on a reflection substrate, and it can inhale
Laser and outgoing fluorescence are received, the fluorescence of outgoing is collected by the first focus lens group 103 again, as collimation fluorescent light beam, the standard
Straight fluorescent light beam will transmit through the outgoing of transflection mirror 102.Scattering layer 106 has the effect of scattering and reflection, and scattering layer 106 is to transmitted light
The laser light scattering on road is simultaneously reflected, and the laser of reflection is collected through the second focus lens group 104 again, as collimated laser beam, the standard
Straight laser beam will reflect output through transflection mirror 102.The collimation fluorescent light beam of final reflected light path outgoing and transmitted light path outgoing
Collimated laser beam synthesis light beam, the synthesis light eventually passes the first luminous lens 107 and the second luminous lens 108 go out
Penetrate.
In the present embodiment, it is preferred that transflection mirror 102 relative to incoming laser beam slant setting at 45 °, reflected light path with
The optical axis of transmitted light path is mutually perpendicular to.Transflection mirror 102 can rationally be set as needed to the light splitting ratio of incident laser beam,
For example, the reflected beams 80%, transmitted light beam 20%, after the laser beam of transmitted light path is reflected by scattering layer 106, its
In 80% will again be reflected away by transflection mirror 102, only therein 20% can be again passed through transflection mirror 102 slatterns, thus
The light energy lost altogether only has 20% × 20%=4%, can be ignored substantially.
In the present embodiment, transflection mirror 102, will also be to phosphor powder layer in addition to carrying out light splitting to incident laser beam
The fluorescence of 105 outgoing is filtered.Used as preferred embodiment of the present utility model, usual incident laser beam selects blue light, glimmering
Light bisque 105 selects yellow fluorescent powder, and so, the blue light of gold-tinted and scattering layer 106 reflection of the outgoing of phosphor powder layer 105 can
To obtain white light.In order to export white light, the gold-tinted of the output of phosphor powder layer 105 should be completely through transflection mirror 102.The utility model has
There is the very big free degree, need to only incident laser beam and fluorescent material be changed into the laser of different wave length and glimmering using the light-source structure
Light powder, can just obtain different output lights, and this simple replacement is same ought to be included within protection domain of the present utility model.
In the present embodiment, phosphor powder layer 105 is arranged on a reflection substrate, forms reflective phosphor powder layer, reflection
Substrate can help phosphor powder layer to radiate.Scattering layer 106 is also disposed on a reflection substrate, forms scattered reflection layer, Ke Yiti
High reflectance.In order that fluorescence and laser can be well mixed in final output light, through the glimmering of the collection of the first focus lens group 103
The laser that light and the second focus lens group 104 are collected should have identical beam diameter and the angle of divergence to be distributed.
In the present embodiment, also including the first luminous lens 107 and the second luminous lens 108, wherein the first luminous lens
107 lens comprising at least two different focals, these lens are fixed in a switching device, can be with by the switching device
In inserting them into output light path in turn.Synthesis light generally from the output of transflection mirror 102 is not preferable collimated light, but
The angle of divergence with the several years, in order to obtain the angle of divergence less than 1 ° of long distance illumination light beam, the mixed light is also needed further through the
One luminous lens 107 and the beam-expanding collimation of the second luminous lens 108.Preferably, the first luminous lens 107 are at least recessed including one
Mirror and a convex lens, the second luminous lens 108 are convex lens.When 107 concavees lens are inserted into output by switching device
During light path, the spacing of focus that the focus of the focus of the first luminous lens 107 and the second luminous lens 108 just overlaps or both is small
In 5mm, they constitute confocal system, and beam-expanding collimation is carried out to last outgoing beam 109, form long distance of the angle of divergence less than 1 °
From illuminating bundle；When the convex lens of the first luminous lens 107 are inserted into output light path by switching device, the first luminous lens
The focus of 107 focus and the second luminous lens 108 no longer overlap or both focus distance not less than 5mm, so as to can be formed
Outgoing beam 109 with certain angle of divergence.Fig. 2 is the optical system diagram when convex lens insert output light path.Because first
Luminous lens 107 from concavees lens transform to convex lens when, the change of focal length is than larger, thus the angle of divergence of outgoing beam 109
Change also can directly obtain outgoing beam 109 of the angle of divergence more than 10 ° than larger by this switching.
In the present embodiment, the first luminous lens 107 can include the lens of multiple different focals, and these lens include recessed
Lens and convex lens, or different lens combination.These lens can be fixed in the switching device of diversified forms so that institute
The lens for needing rapidly and accurately can be switched in output light path, it is preferred that the lens of these different focals can be fixed on
On translatory switching device, switched over by translation；Can also be fixed in wheel disc switching device, be cut by rotation roulette
Change.Switched over by the first luminous lens 107, can both obtain long distance illumination light beam of the angle of divergence less than 1 °, also may be used
The closely illuminating bundle very big to obtain the angle of divergence, and it is very convenient fast to the switching for closely illuminating from long distance illumination
It is prompt.
Fig. 3 is the structural representation of the second embodiment of laser searchlight of the present utility model.The laser of the present embodiment is visited
Illuminator includes laser diode 201, transflection mirror 202, the first focus lens group 203, the second focus lens group 204, phosphor powder layer
205, scattering layer 206, the first luminous lens 207, the second luminous lens 208, outgoing beam 209, focusing lens 210.With first
The difference of embodiment is that in the present embodiment, switching device is not that the first luminous lens 207 are switched into the saturating of different focal
Mirror, but focusing lens 210 is inserted in output light path between the first luminous lens 207 and the second luminous lens 208, so that
Play a part of to change the angle of divergence of last outgoing beam 209.When switching device makes focusing lens 210 leave output light path,
The focus of the focus of the first luminous lens 207 and the second luminous lens 208 just overlap or both focus distance less than 5mm,
They constitute confocal system, and last outgoing beam 209 is collimated, and form long distance illumination light of the angle of divergence less than 1 °
Beam；When focusing lens 210 is inserted into output light path by switching device, by the common work of this three lens in output light path
With the closely illuminating bundle with certain angle of divergence can be formed.So, by switching device to focusing lens 210 insert and
The operation of extraction, thus it is possible to vary the angle of divergence of last outgoing beam 209, you can obtain long distance illumination light of the angle of divergence less than 1 °
Beam, it is also possible to obtain the very big closely illuminating bundle of the angle of divergence, and the switching of far and near light beam is very convenient quick.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of laser searchlight, it is characterised in that including：
Laser diode, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer, scattering layer, the first light extraction
Lens, the second luminous lens；First focus lens group and the second focus lens group are symmetrical arranged with respect to transflection mirror；From the pole of laser two
The laser of pipe output becomes two beams through transflection mirror light splitting, a branch of to be focused on phosphor powder layer by the first focus lens group, another beam
Focused on scattering layer by the second focus lens group；The phosphor powder layer absorbs incident laser and is converted into therewith that wavelength is not
Same fluorescence；
Wherein, lens of first luminous lens comprising at least two different focals, it is fixed in a switching device, described to cut
Be inserted into output light path for the lens switching of different focal by changing device.
2. laser searchlight as claimed in claim 1, it is characterised in that first luminous lens comprise at least one it is recessed
Mirror and a convex lens；When concavees lens insert output light path, correspondence long distance illumination light beam；When convex lens insert output light path
When, corresponding closely illuminating bundle.
3. laser searchlight as claimed in claim 2, it is characterised in that when the concavees lens insert light path, the first light extraction
Focus that the focus of the focus of lens and the second luminous lens overlaps or both is smaller than 5mm.
4. laser searchlight as claimed in claim 1, it is characterised in that the laser is blue laser, the phosphor powder layer
It is yellow phosphor coating.
5. laser searchlight as claimed in claim 4, it is characterised in that the transflection mirror realizes that 20% is saturating to incident laser
Penetrate, 80% reflection, while gold-tinted of the transmission from phosphor powder layer outgoing.
6. laser searchlight as claimed in claim 1, it is characterised in that first luminous lens include multiple different focals
Lens, these lens are fixed in a switching device side by side, the switching device by translation different focal lens
Between switch over.
7. laser searchlight as claimed in claim 1, it is characterised in that first luminous lens include multiple different focals
Lens, these lens are fixed in a wheel disc switching device, and the wheel disc switching device is by being rotated in different focal
Switched between lens.
8. a kind of laser searchlight, it is characterised in that including：
Laser diode, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer, scattering layer, the first light extraction
Lens, the second luminous lens；First focus lens group and the second focus lens group are symmetrical arranged with respect to transflection mirror；From the pole of laser two
The laser of pipe output becomes two beams through transflection mirror light splitting, a branch of to be focused on phosphor powder layer by the first focus lens group, another beam
Focused on scattering layer by the second focus lens group；The phosphor powder layer absorbs incident laser and is converted into therewith that wavelength is not
Same fluorescence；
Also include a focusing lens, the focusing lens is fixed in a switching device, and the switching device focuses this
Lens are inserted into output light path or are removed from output light path.
9. laser searchlight as claimed in claim 8, it is characterised in that when focusing lens is not in output light path, output
Light correspondence long distance illumination light beam；When focusing lens is removed from output light path, the corresponding closely illuminating bundle of output light.
10. laser searchlight as claimed in claim 9, it is characterised in that when focusing lens is not in output light path, first
Focus that the focus of the focus of luminous lens and the second luminous lens overlaps or both is smaller than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036309.7U CN206280809U (en) | 2016-09-03 | 2016-09-03 | Laser searchlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036309.7U CN206280809U (en) | 2016-09-03 | 2016-09-03 | Laser searchlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280809U true CN206280809U (en) | 2017-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621036309.7U Active CN206280809U (en) | 2016-09-03 | 2016-09-03 | Laser searchlight |
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| Country | Link |
|---|---|
| CN (1) | CN206280809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369484A (en) * | 2016-09-03 | 2017-02-01 | 超视界激光科技（苏州）有限公司 | Laser searchlight |
-
2016
- 2016-09-03 CN CN201621036309.7U patent/CN206280809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369484A (en) * | 2016-09-03 | 2017-02-01 | 超视界激光科技（苏州）有限公司 | Laser searchlight |
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