CN206274119U - Laser module - Google Patents
Laser module Download PDFInfo
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- CN206274119U CN206274119U CN201621036364.6U CN201621036364U CN206274119U CN 206274119 U CN206274119 U CN 206274119U CN 201621036364 U CN201621036364 U CN 201621036364U CN 206274119 U CN206274119 U CN 206274119U
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- light
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Abstract
The utility model provides a kind of laser module, including laser diode, focusing lens group, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer, scattering layer.The laser of laser diode output is by forming beam size and the controllable incoming laser beam of the angle of divergence after focusing lens group, incoming laser beam 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 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.By the structure of laser searchlight of the present utility model, the emerging beam of the different angles of divergence can be conveniently and efficiently 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 can be controlled within 1 °, thus can form several kilometers of irradiation distance, but near
During range blanking, the so small angle of divergence is just improper, it is desirable to be able to conveniently and efficiently adjust the angle of divergence of light beam, realizes remote
Dipped beam is adjusted.Further, since the complexity of LASER Excited Fluorescence powder technical scheme, laser should be considered in Optical System Design
Convergence, the collection of fluorescence is considered again, especially the mixing of two kinds of light and even light so that the tune that traditional LED flashlight is used
Burnt scheme 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 modular structure, including：Laser diode, focusing lens group, transflection mirror, the first focus lens group, the second focus lens group,
Phosphor powder layer, scattering layer；Wherein, focusing lens group is located between laser diode and transflection mirror, the first focus lens group and the
Two focus lens groups are symmetrical arranged with respect to transflection mirror；Described focusing lens group includes at least one lens and lens regulation dress
Put, incoming laser beam is formed after focusing lens group from the laser of laser diode output, described lens adjusting device passes through
Adjust lens position or combination so as to change laser diode output collimated laser beam beam size or diverging
Angle；Described incoming laser beam 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 is focused on scattering layer by the second focus lens group；The phosphor powder layer absorbs incident laser and is converted into therewith
The different fluorescence of wavelength.So, the spot size and the angle of divergence of incoming laser beam are adjusted by focusing lens group, are changed
Spot size in subsequent optical path, thus it is possible to vary the angle of flare of last outgoing beam, so as to obtain the different irradiation distances of correspondence
Light beam.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of laser searchlight of the present utility model；
Fig. 2 is a kind of optical schematic diagram for expanding the outgoing beam angle of divergence of the present utility model；
Fig. 3 is another optical schematic diagram for expanding the outgoing beam angle of divergence of the utility model；
Fig. 4 is the optical schematic diagram that the utility model is adjusted using exit lens group to outgoing beam.
Specific embodiment
Fig. 1 is a kind of structural representation of embodiment of the laser module of the utility model design.The laser searchlight bag
Include laser diode 101, focusing lens group 110, transflection mirror 102, the first focus lens group 103, the second focus lens group 104,
Phosphor powder layer 105, scattering layer 106.Wherein, focusing lens group 110 includes a concavees lens 112 and a convex lens 113；First
The focus lens group 104 of focus lens group 103 and second is symmetrical arranged relative to transflection mirror 102.It is accurate from the outgoing of laser diode 101
Straight laser, using collimation laser by the laser beam after concavees lens 112 and convex lens 113 as incident laser beam, it is now recessed
The position of mirror 112 and convex lens 113 just causes incident laser beam for a branch of directional light, and incident laser beam is through transflection mirror
102 light splitting become two beams, a branch of entrance reflected light path, a branch of entrance transmitted light path.The first focus lens group in reflected light path
, on phosphor powder layer 105, the second focus lens group 104 in transmitted light path will be saturating for 103 Laser Focusings for reflecting transflection mirror 102
The Laser Focusing of light path is penetrated to scattering layer 106.Phosphor powder layer 105 is arranged on a reflection substrate, and it can absorb laser
And outgoing fluorescence, the fluorescence of outgoing is collected by the first focus lens group 103 again, as collimation fluorescent light beam, the collimation fluorescence
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 swashs to transmitted light path
Light scattering is simultaneously reflected, and the laser of reflection is collected through the second focus lens group 104 again, as collimated laser beam, the collimation laser
Light beam will reflect output through transflection mirror 102.The collimation fluorescent light beam of final reflected light path outgoing and the collimation of transmitted light path outgoing
Laser beam synthesizes light beam, and the angle of divergence of the light beam synthesized by this structure is minimum.
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.
As shown in Fig. 2 being a kind of optical principle schematic diagram of the method for expanding the outgoing beam angle of divergence in the present embodiment, lead to
Cross and convex lens 113 are translated along laser beam, the angle of divergence of incident laser beam can be expanded, so that in expanding subsequent optical path
Spot size so that the laser being irradiated on phosphor powder layer 105 and scattering layer 106 is big with time-varying, is excited by phosphor powder layer 105
Fluorescence and become big by the angle of divergence of light beam that scattering layer 106 reflects so that the angle of divergence for being finally synthesizing light is corresponding
Ground becomes big.
As shown in figure 3, be the optical principle schematic diagram of another method for expanding the outgoing beam angle of divergence in the present embodiment,
Translated along laser beam by by concavees lens 112, can cause that incident laser beam shrinks, by the first focus lens group 103
Can all become big with the beam and focus after the second focus lens group 104, therefore, the fluorescence and process excited by phosphor powder layer 105
The angle of divergence of the light beam of the reflection of scattering layer 106 can become big so that the angle of divergence for being finally synthesizing light correspondingly becomes big.
Fig. 3 is the schematic diagram of another emergent light regulative mode of the present utility model, and setting one in emitting light path goes out
Optical lens group 109 is penetrated, including the first luminous lens 107 and the second luminous lens 108, by two effects of lens, can
Further to adjust the angle of divergence of emergent light.
The utility model, can be with very convenient quickly regulation incoming laser beam by adjusting the effect of lens group 110
Spot size, so that the spot size in changing subsequent optical path, realizes carrying out quick regulation to the angle of divergence of outgoing beam.
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 (7)
1. a kind of laser module, it is characterised in that including：
Laser diode, focusing lens group, transflection mirror, the first focus lens group, the second focus lens group, phosphor powder layer, scattering
Layer；Incoming laser beam, described incoming laser beam warp are formed after first passing through focusing lens group from the laser of laser diode output
Transflection mirror light splitting becomes two beams, a branch of to be focused on phosphor powder layer by the first focus lens group, and another beam is by the second condenser lens
Group is focused on scattering layer；Wherein, described focusing lens group includes at least one lens and at least one lens adjusting device,
Described lens adjusting device by adjust lens position or combination so as to change the laser light incided on transflection mirror
The size or the angle of divergence of beam.
2. laser module as claimed in claim 1, it is characterised in that the focusing lens group comprise at least a concavees lens and
One convex lens, also including at least one lens adjusting device, described lens adjusting device can be by concavees lens or convex lens
Rotated or translation, so as to change the spot size or the angle of divergence of incoming laser beam.
3. laser module as claimed in claim 2, it is characterised in that described lens adjusting device using purely mechanic device or
Electromechanical assembly, described purely mechanic device using translation mechanism, rotating mechanism, linkage, magnetic coupling, link chain mechanism,
One or more in synchronous belt mechanism or belt wheel mechanism mode of combination；Described electromechanical assembly is used comprising foregoing pure machine
Tool device and corresponding electric controller, described electric controller using electric rotating machine, planar motor, ultrasonic motor or
One or more in magnetic valve of combination.
4. laser module as claimed in claim 1, it is characterised in that first focus lens group and the second focus lens group
It is symmetrical arranged with respect to transflection mirror.
5. laser module as claimed in claim 1, it is characterised in that the laser is blue laser, the phosphor powder layer is
Yellow phosphor coating.
6. laser module as claimed in claim 5, it is characterised in that the transflection mirror realizes that 20% is saturating to incident blue light
Penetrate, 80% reflection, while gold-tinted of the transmission from phosphor powder layer outgoing.
7. laser module as claimed in claim 1, it is characterised in that also including an emergent light lens group, described outgoing
Optical lens group includes at least one lens, and the lens are using the combination of one or more in convex lens or concavees lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036364.6U CN206274119U (en) | 2016-09-03 | 2016-09-03 | Laser module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036364.6U CN206274119U (en) | 2016-09-03 | 2016-09-03 | Laser module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274119U true CN206274119U (en) | 2017-06-23 |
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ID=59062917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621036364.6U Active CN206274119U (en) | 2016-09-03 | 2016-09-03 | Laser module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195671A (en) * | 2016-09-03 | 2016-12-07 | 超视界激光科技（苏州）有限公司 | Laser module |
| CN108828782A (en) * | 2018-07-05 | 2018-11-16 | 钢研纳克检测技术股份有限公司 | High power focused light passages system and adjusting method are continuously adjusted for laser spot size |
-
2016
- 2016-09-03 CN CN201621036364.6U patent/CN206274119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195671A (en) * | 2016-09-03 | 2016-12-07 | 超视界激光科技（苏州）有限公司 | Laser module |
| CN108828782A (en) * | 2018-07-05 | 2018-11-16 | 钢研纳克检测技术股份有限公司 | High power focused light passages system and adjusting method are continuously adjusted for laser spot size |
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