CN206352734U - The full LASER Light Source modules of RGB - Google Patents
The full LASER Light Source modules of RGB Download PDFInfo
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- CN206352734U CN206352734U CN201621329833.3U CN201621329833U CN206352734U CN 206352734 U CN206352734 U CN 206352734U CN 201621329833 U CN201621329833 U CN 201621329833U CN 206352734 U CN206352734 U CN 206352734U
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Abstract
The utility model is related to technical field of lamps, more particularly to a kind of full LASER Light Source modules of RGB.The full LASER Light Source modules of RGB include：Light source part, coupling unit, transmission part, light dispersion member and collimating components, light source part transmitting laser beam, laser beam include green laser beam, red laser light beam and blue laser beams；Green laser beam, red laser light beam and blue laser beams are coupled to form the first coupled light beam by coupling unit on the optical axis of laser beam；The incident end face of transmission part is on the convergent point of the first coupled light beam, and transmission part transmits the first coupled light beam to light dispersion member；Light dispersion member scatters the first coupled light beam to form the second coupled light beam；Collimating components are collimated on the optical axis of the second coupled light beam, and by the second coupled light beam.The output beam with good color uniformity, illuminance uniformity and etendue is resulted in, compact conformation, the efficiency of light energy utilization are high.
Description
Technical field
The utility model is related to technical field of lamps, more particularly to a kind of full LASER Light Source modules of RGB and a kind of RGB swash entirely
The optical path adjusting method of radiant module.
Background technology
Light source is the important component of lamp system and projection display apparatus, the performance of light source determine lamp system and
The performance of projection display apparatus.In recent years, liquid crystal panel or digital micro-mirror chip (Digital Micromirror are being used
Device, DMD) as in the lamp system and projection display apparatus (projector) of display control element, used with light two
Pole pipe (Light Emitting Diode, LED) or laser etc. as light source technology.
Although compared with the technology for taking conventional light source, there are a series of advantages, LED as light source using three-color LED
Light source still suffers from the low problem of brightness.In order to solve the problem of LED luminance is low, many utility models propose different improvement sides
Method, such as publication number：CN103250096 patent application is proposed excites fluorescent material to improve light source using semiconductor laser
The scheme of brightness.It is due to the wide spectrum characteristic of fluorescent material although this scheme can improve light-source brightness, therefore its structure
Into light source module chromatic characteristic it is still not enough, and have the shortcomings that complicated, light path is longer.
In terms of the brightness of light source light spectrum purity, gamut range and lamp system and large screen projection equipment, to swash entirely
Light is set as the lamp system and projection display apparatus of light source than use LED etc. as the lamp system and Projection Display of light source
It is standby to have more obvious advantage.But in the current lamp system using full laser as light source and projection display apparatus, exist
The problem of some urgent need to resolve, such as：R (red), G (green), the color laser of B (blueness) three be mixed into white light color uniformity and
Illuminance uniformity is not good, and type laser light-path structure is long, and the efficiency of light energy utilization is low, cost of manufacture height etc..
Utility model content
The technical problems to be solved in the utility model is to provide a kind of full LASER Light Source modules of RGB and a kind of full laser of RGB
The optical path adjusting method of light source module, using the teaching of the invention it is possible to provide with good color uniformity, illuminance uniformity, high light flux and suitable
Etendue output beam, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：A kind of full LASER Light Source moulds of RGB
Group, including：Light source part, coupling unit, transmission part, light dispersion member and collimating components, light source part transmitting laser beam, swash
Light light beam includes green laser beam, red laser light beam and blue laser beams；Coupling unit is located at the optical axis of laser beam
On, and green laser beam, red laser light beam and blue laser beams are coupled to form the first coupled light beam；Transmission part
Incident end face is on the convergent point of the first coupled light beam, and transmission part transmits the first coupled light beam to light dispersion member；Astigmatism
Part scatters the first coupled light beam to form the second coupled light beam；Collimating components are located on the optical axis of the second coupled light beam, and will
Second coupled light beam is collimated.
Preferably, coupling unit includes plus lens and double anti-convergence reflective mirrors, double anti-convergence reflective mirrors include interval and
The first reflective mirror and the second reflective mirror be arrangeding in parallel.
Preferably, plus lens is on the optical axis of green laser beam；Double anti-convergence reflective mirrors are located at red laser light
On beam and the optical axis of blue laser beams.
Preferably, the first coupled light beam is imaged on the incident end face of transmission part and forms hot spot, and the diameter of hot spot is less than
The clear aperture of transmission part incident end face.
Preferably, provided with adjustment part between light source part and coupling unit, adjustment part is located at the light of laser beam
On axle, and laser beam is collimated.
A kind of optical path adjusting method of the full LASER Light Source modules of RGB, comprises the following steps：Step 1: being sent out by light source part
Project green laser beam, red laser light beam and blue laser beams；Step 2: by coupling unit by green laser beam,
Red laser light beam and blue laser beams couple to form the first coupled light beam；Step 3: coupling light by first by transmission part
Beam is transmitted to light dispersion member；Step 4: the first coupled light beam is scattered by light dispersion member form the second coupled light beam；Step 5:
The second coupled light beam is collimated by collimating components.
Preferably, after step one, before step 2, by adjustment part by red laser light beam and blue laser beams
Collimation.
Preferably, the collimation angle of red laser light beam and blue laser beams is less than ± 1 °
Preferably, in step 4, the angle of divergence of the second coupled light beam is within ± 20 °.
Preferably, in step 5, the collimation angle of the second coupled light beam is less than ± 1.5 °.
Compared with prior art, the utility model has significant progressive：
Green laser beam, red laser light beam and the blue laser that light source part can be launched by coupling unit
Light beam is coupled, converged on the incident end face of transmission part at a certain angle, the laser beam of three kinds of colors is tentatively uniformly mixed
Close and form the first coupled light beam, then transmitted by transmission part to light dispersion member, the first coupled light beam is sent out by light dispersion member
Dissipate and form the second coupled light beam with certain space angular range and Illumination Distribution, then export after being collimated by collimating components,
So as to obtain the output with good color uniformity, illuminance uniformity, high light flux and suitable etendue
Light beam, and have the advantages that compact conformation, the efficiency of light energy utilization are high.
Brief description of the drawings
Fig. 1 is the structural scheme of mechanism of the full LASER Light Source modules of RGB of the utility model embodiment.
Fig. 2 be the utility model embodiment the full LASER Light Source modules of RGB in double anti-convergence reflective mirrors fundamental diagrams.
Fig. 3 be the utility model embodiment the full LASER Light Source modules of RGB in scattering sheet fundamental diagram.
In figure：
1st, light source part 11, green laser 12, blue laser
13rd, red laser 2, coupling unit 21, plus lens
22nd, the first reflective mirror 220, the reflecting surface 23 of the first reflective mirror, the second reflective mirror
230th, the reflecting surface 3 of the second reflective mirror, transmission part 4, light dispersion member
40th, the plane of incidence 5 of scattering sheet, collimating components
Embodiment
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.These embodiments are only
For illustrating the utility model, and it is not limitation of the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that indicate or
Imply relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on can understanding as the case may be
State concrete meaning of the term in the utility model.
In addition, in description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.
As shown in figure 1, the utility model embodiment provides a kind of full LASER Light Source modules of RGB.The RGB of the present embodiment is complete
LASER Light Source module includes：Light source part 1, coupling unit 2, transmission part 3, light dispersion member 4 and collimating components 5.Wherein, light source
Part 1 launches laser beam, and laser beam includes green laser beam, blue laser beams and red laser light beam.Coupling part
Part 2 couples green laser beam, red laser light beam and blue laser beams to form the on the optical axis of laser beam
One coupled light beam.The incident end face of transmission part 3 is on the convergent point of the first coupled light beam, and transmission part 3 is coupled first
Beam Propagation is to light dispersion member 4.Light dispersion member 4 scatters the first coupled light beam to form the second coupled light beam.Collimating components 5 are located at
On the optical axis of second coupled light beam, and the second coupled light beam is collimated.
The full LASER Light Source modules of RGB of the present embodiment, the green that light source part 1 can be launched by coupling unit 2
Laser beam, red laser light beam and blue laser beams couple, converged to the incident end face of transmission part 3 at a certain angle
On, the laser beam of three kinds of colors is tentatively uniformly mixed to form the first coupled light beam, then transmitted by transmission part 3 to astigmatism
Part 4, makes the first coupled light beam dissipate to be formed with certain space angular range and Illumination Distribution second by light dispersion member 4
Coupled light beam, then by being exported after the collimation of collimating components 5, so as to obtain with good color uniformity, uniform-illumination
The output beam of property and etendue, and have the advantages that compact conformation, the efficiency of light energy utilization are high.
Further, in the present embodiment, light source part 1 includes green laser 11, blue laser 12 and red laser
Device 13, is respectively used to launch green laser beam, blue laser beams and red laser light beam.Green laser 11, blueness
Laser 12 and the respective quantity of red laser 13 are not limited to, can be one；Can also be it is multiple be in array distribution, root
According to the change of the luminous flux requirement of final output light beam, it can increase or reduce the quantity of the laser in laser array,
So as to increase or decrease the total light flux of corresponding laser beam.Green laser 11, blue laser 12 and red laser 13
Solid state laser can be used, it would however also be possible to employ semiconductor laser or other types of laser.
Further, in the present embodiment, coupling unit 2 includes plus lens 21 and double anti-convergence reflective mirrors, double anti-convergences
Reflective mirror includes interval and the first reflective mirror 22 and the second reflective mirror 23 that be arranged in parallel.Preferably, plus lens 21 is located at green
On the optical axis of color laser beam, for green laser beam to be coupled and the incident end face of transmission part 3 is incided.This implementation
Plus lens 21 in example uses planoconvex spotlight.The first reflective mirror 22 and the second reflective mirror 23 of double anti-convergence reflective mirrors are located at red
On color laser beam and the optical axis of blue laser beams, for coupling and inciding red laser light beam and blue laser beams
On the incident end face of transmission part 3, its fundamental diagram is as shown in Figure 2.It is real by plus lens 21 and double anti-convergence reflective mirrors
Show green laser beam, red laser light beam and blue laser beams to couple at a certain angle, converge to entering for transmission part 3
Penetrate on end face and form the first coupled light beam, the first coupled light beam is imaged on the incident end face of transmission part 3 and forms hot spot, the light
The diameter of spot is less than the clear aperture of the incident end face of transmission part 3, and the convergence angle of the first coupled light beam meets transmission part 3
Requirement, the convergence angle of the first coupled light beam is less than 30 ° in the present embodiment.
Preferably, provided with adjustment part 6 between light source part 1 and coupling unit 2, adjustment part 6 is located at laser beam
Optical axis on, and laser beam is collimated.In the present embodiment, adjustment part 6 is located at red laser light beam and blue laser light
On the optical axis of beam, reentered after red laser light beam and the adjusted collimation of part 6 of blue laser beams and be incident upon double anti-convergence reflective mirrors
It is upper to be coupled.Preferably, the collimation angle of red laser light beam and blue laser beams is less than ± 1 °.The adjustment of the present embodiment
Part 6 uses positive meniscus lens.
Further, in the present embodiment, transmission part 3 uses multimode fibre, for the first coupled light beam to be transmitted to scattered
The plane of incidence of light part 4.Light dispersion member 4 uses scattering sheet, as shown in figure 3, the plane of incidence 40 of scattering sheet has micro-structural, can be with
The first incident coupled light beam is projected with the fixed angle of divergence and intensity distribution, the second coupled light beam is formed.Preferably, second
The angle of divergence of coupled light beam is within ± 20 °.Collimating components 5 use collimation lens, for being collimated to the second coupled light beam.
Preferably, the collimation angle of the second coupled light beam is less than ± 1.5 °.
Specifically, in the present embodiment, light source part 1 includes green laser 11, the blueness of four array distributions
Laser 12 and the red laser of eight array distributions 13.
Green laser 11 is 532nm solid state laser, although its green laser beam launched has smaller hair
Angle (about 1 °) and less beam cross section (about 1.5mm) are dissipated, when the incident end face of transmission part 3 is reached after one section of light path
Beam cross section can reach 4mm or so, and the transmission part 3 used is multimode fibre, and it only has 1.5mm, it is impossible to effectively couple
Enter optical fiber, so needing that green laser beam is coupled into transmission part 3 by plus lens 21.Plus lens in this example
21 use planoconvex spotlight, and the optical parametric of planoconvex spotlight is as shown in table 1：
The optical parametric of the planoconvex spotlight of table 1
| r(mm) | d(mm) | n |
| ∞ | 2.8 | 1.516 |
| 19.6 | - | - |
In table 1, r is the refraction radius of planoconvex spotlight, and d represents each surface of planoconvex spotlight sequence and plane of refraction edge behind
The distance of optical axis position, n is the refractive index of planoconvex spotlight.
Blue laser 12 is the semiconductor laser of 450nm wavelength, and red laser 13 is the semiconductor of 638nm wavelength
Laser.Because the luminous situation such as light distribution form of various lasers there may be difference, therefore each blue laser
12 and red laser 13 be correspondingly arranged one adjustment part 6, different type light source can be sent by adjusting part 6
The light of different light distribution be adjusted to unified light distribution.In the present embodiment, adjustment part 6 uses falcate convex lens
Mirror, the optical parametric of positive meniscus lens is as shown in table 2：
The optical parametric of the positive meniscus lens of table 2
| r(mm) | d(mm) | n |
| 38.85 | 4.00 | 1.724859 |
| 4.70 | - | - |
In table 2, r be positive meniscus lens refraction radius, d represent each surface of positive meniscus lens sequence with behind
Distance of the plane of refraction along optical axis position, n is the refractive index of positive meniscus lens.
Red laser light beam and blue laser beams are incident to double anti-convergences after above-mentioned positive meniscus lens adjustment collimation
Reflective mirror.The optical parametric of double anti-convergence reflective mirrors is as shown in table 3：
The optical parametric of the anti-convergence reflective mirror of 3 pairs, table
| Reflecting surface | c | k | β1 | β2 | β3 | d(mm) | D(mm) |
| 220 | 0.01338 | 0.0269 | -0.056 | 0.015 | -0.00326 | -34 | 90 |
| 230 | 0.040154 | -0.244 | - | - | - | - | 25 |
Wherein, the reflecting surface 220 of the first reflective mirror is high order aspheric surface, and aspherical rise Z is defined as：
In table 3 and above formula, c is vertex curvature, c=1/R；K is circular cone coefficient；R sits for the radial direction at non-spherical surface midpoint
Mark, r2=x2+y2；βiFor aspherical system；D is the spacing on the summit of two reflectings surface, and D is clear aperture.
The first coupled light beam convergence of green laser beam, blue laser beams and the formation of red laser light beam coupling is concentrated
In zonule within to (multimode fibre) incident end face of transmission part 3 1mm, it is ensured that enter the first coupled light beam of multimode fibre
The satisfactory angle of divergence, the energy of the convergence angle 95% of green laser beam, blue laser beams and red laser light beam
Concentrate within ± 15 °, such first coupled light beam parameter, meet the Space Angle requirement of multimode fibre.First coupled light beam
The Preliminary Results of even smooth colour mixture have been reached by the transmission of transmission part 3, the second coupled light beam formed after light dispersion member 4
Dispersion angle is ± 20 °, and the uniformity and evenness degree of the second coupled light beam can reach 95%.Second coupled light beam is through standard
After the collimating and correcting of straight member 5, spot diameter 45mm, collimation angle is ± 1.5 °.Collimating components 5 use collimation lens, collimation
The optical parametric of lens is as shown in table 4：
The optical parametric of the collimation lens of table 4
| r(mm) | d(mm) | D(mm) | n |
| 148.5 | 10.18 | 50 | 1.516 |
| 75.66 | - | 50 | - |
In table 4, r is the refraction radius of collimation lens, and d represents each surface of collimation lens sequence and plane of refraction edge behind
The distance of optical axis position, D is clear aperature, and n is the refractive index of collimation lens.
The full LASER Light Source modules of above-mentioned RGB of the present embodiment are applied to high brightness and high resolution degree projector, are also applied for vapour
Car lamp system.
The present embodiment additionally provides a kind of optical path adjusting method of the full LASER Light Source modules of RGB.The RGB of the present embodiment swashs entirely
The optical path adjusting method of radiant module can be realized by the full LASER Light Source modules of above-mentioned RGB of the present embodiment, specifically,
The optical path adjusting method of the full LASER Light Source modules of RGB of the present embodiment comprises the following steps：
Step 1: launching green laser beam, red laser light beam and blue laser beams by light source part 1.
Step 2: green laser beam, red laser light beam and blue laser beams are coupled by coupling unit 2 form
One coupled light beam.Preferably, after step one, before step 2, by adjustment part 6 by red laser light beam and blue laser
The collimation angle of beam collimation, red laser light beam and blue laser beams is less than ± 1 °.
Step 3: first coupled light beam is transmitted to light dispersion member 3 by transmission part 3.First coupled light beam is in transport part
Imaging forms hot spot on the incident end face of part 3, clear aperture of the diameter less than the incident end face of transmission part 3 of the hot spot, and the
The convergence angle of one coupled light beam meets the requirement of transmission part 3.The convergence angle of the first coupled light beam is less than in the present embodiment
30°。
Step 4: the first coupled light beam is scattered by light dispersion member 4 form the second coupled light beam.Preferably, the second coupling
The angle of divergence of light beam is within ± 20 °.
Step 5: second coupled light beam is collimated by collimating components 5.Preferably, the collimation angle of the second coupled light beam is small
In ± 1.5 °.
In summary, the light path adjustment side of the full LASER Light Source modules of the RGB of the present embodiment and the full LASER Light Source modules of RGB
Method, the green laser beam that light source part 1 can be launched by coupling unit 2, red laser light beam and blue laser light
Beam is coupled, converged on the incident end face of transmission part 3 at a certain angle, the laser beam of three kinds of colors is tentatively uniformly mixed
The first coupled light beam is formed, is then transmitted by transmission part 3 to light dispersion member 4, the first coupled light beam is sent out by light dispersion member 4
Dissipate and form the second coupled light beam with certain space angular range and Illumination Distribution, then by being exported after the collimation of collimating components 5,
So as to obtain the output beam with good color uniformity, illuminance uniformity and etendue, and with structure
The high advantage of the compact, efficiency of light energy utilization.
The full LASER Light Source modules of above-mentioned RGB of the present embodiment and the optical path adjusting method of the full LASER Light Source modules of RGB are applicable
In high brightness and high resolution degree projector, automobile lamp system is also applied for.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change
Enter and replace and also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of full LASER Light Source modules of RGB, it is characterised in that including：Light source part (1), coupling unit (2), transmission part
(3), light dispersion member (4) and collimating components (5), the light source part (1) launch laser beam, and the laser beam includes green
Laser beam, red laser light beam and blue laser beams；The coupling unit (2) is located on the optical axis of the laser beam,
And the green laser beam, the red laser light beam and the blue laser beams are coupled and to form the first coupled light beam；
The incident end face of the transmission part (3) is on the convergent point of first coupled light beam, and the transmission part (3) will be described
First coupled light beam is transmitted to the light dispersion member (4)；The light dispersion member (4) scatters first coupled light beam to form
Two coupled light beams；The collimating components (5) are located on the optical axis of second coupled light beam, and second coupled light beam is accurate
Directly.
2. the full LASER Light Source modules of RGB according to claim 1, it is characterised in that the coupling unit (2) includes convergence
Lens (21) and double anti-convergence reflective mirrors, double anti-convergence reflective mirrors include interval and the first reflective mirror (22) be arrangeding in parallel
With the second reflective mirror (23).
3. the full LASER Light Source modules of RGB according to claim 2, it is characterised in that the plus lens (21) is located at institute
State on the optical axis of green laser beam；Double anti-convergence reflective mirrors are located at the red laser light beam and the blue laser light
On the optical axis of beam.
4. the full LASER Light Source modules of RGB according to claim 1, it is characterised in that first coupled light beam is described
Imaging forms hot spot on the incident end face of transmission part (3), and the diameter of the hot spot is less than the transmission part (3) incident end face
Clear aperture.
5. the full LASER Light Source modules of RGB according to claim 1, it is characterised in that the light source part (1) with it is described
Provided with adjustment part (6) between coupling unit (2), the adjustment part (6) is on the optical axis of the laser beam, and by institute
State laser beam collimation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106545757A (en) * | 2016-12-06 | 2017-03-29 | 武汉通畅汽车电子照明有限公司 | The full LASER Light Source modules of RGB and its optical path adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106545757A (en) * | 2016-12-06 | 2017-03-29 | 武汉通畅汽车电子照明有限公司 | The full LASER Light Source modules of RGB and its optical path adjusting method |
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