CN206112853U - Laser source module - Google Patents

Abstract

The utility model provides a laser source module and light source system, including the laser instrument, the speculum passes through anti - mirror, a focus lens group, the 2nd focus lens group, fluorescent layer, scattering layer. From the laser of laser instrument output earlier through the speculum reflection, become two bundles through passing through anti - mirror beam split again, wherein a branch of warp focus lens group focuses on fluorescence excitation on the fluorescent layer, the 2nd focus lens group on another bundle warp reflects on focusing on the scattering layer. Wherein, a focus lens group and the 2nd focus lens group pass through anti - mirror symmetry setting relatively, like this from the fluorescence of fluorescent layer outgoing and the synthetic a branch of light of the laser energy outgoing of scattering layer reflection. The utility model discloses a laser source module still includes adjusting device, but the angle of this adjusting device accommodation reflex mirror to change laser entry realizes the control to swashing optical module output beam deflecting direction to the luminous point position of fluorescent layer and scattering layer.

Description

LASER Light Source module

Technical field

This utility model is related to LASER Light Source field, more particularly to LASER Light Source module and the laser light using the module Origin system.

Background technology

At present, LED light sources are replacing traditional electric filament lamp and electricity-saving lamp to become a kind of new lighting source, as A kind of general illumination light source, it has the advantages of efficient, energy-conservation, environmental protection and life-span length.But LED luminance is limited, need at some The special application field of high bright light source, such as light of stage are illuminated, headlight for vehicles, and the field such as Projection Display, LED cannot just be expired Foot require that.The semiconductor laser diode homologous with LED, it may have efficiently, energy-conservation, environmental protection, the advantage of life-span length, using sharp Light excitated fluorescent powder technology（Long-distance fluorescent powder technology）Etendue can be obtained（Etendue the high point source of) little, brightness, The point source can be used on the application for needing highlight illumination.

LASER Excited Fluorescence powder technology is, by laser focusing to phosphor powder layer, to form the point light of a luminous point very little The Stimulated Light for producing high brightness is excited in source, fluorescent material, and typically blue laser excites yellow fluorescent powder, the yellow Stimulated Light of generation White light is formed with remaining blue light, then outgoing is collected by optical system.The technology has two kinds of ways of realization, and one kind is will be glimmering Light powder is coated on the colour wheel of a rotation, and another kind is that fluorescent material is coated on fixed heat dissipating substrate, but no matter which kind of Mode, the position of luminous point is all fixed, in many applications, it usually needs the variable light source of acquisition light source position, with reality Now the deflection of light beam is controlled, now traditional technology cannot just meet and require that.

The content of the invention

In order to solve above-mentioned technical problem, the utility model proposes a kind of LASER Light Source module, including laser instrument, reflection Mirror, transflection mirror, the first focus lens group, the second focus lens group, wavelength conversion layer, scattering layer, and adjusting means.Wherein, First focus lens group and the second focus lens group are symmetrical arranged with respect to transflection mirror；Wavelength conversion layer adopts fluorescent material, from laser The laser beam of device outgoing, first passes through reflecting mirror reflection and is again incident on transflection mirror；The laser beam is divided into two beams by transflection mirror, and one Beam from transflection mirror reflection after the first focus lens groups of Jing focus on wavelength conversion layer, another beam from transflection mirror transmission after Jing second Focus lens group is focused on scattering layer；Also include adjusting means, the space angle of adjusting means scalable reflecting mirror, so as to change The laser beam angle on transflection mirror is incided in change.

The beneficial effects of the utility model are to rotate the space angle of reflecting mirror by adjusting means, can change laser and enter The light spot position of wavelength conversion layer and scattering layer is mapped to, so as to realize the control to laser module output beam direction, and is reflected The usual very little of size of mirror so that light beam yawing moment it is easy to control flexibly.

Description of the drawings

Fig. 1 is the structural representation of this utility model LASER Light Source module；

Fig. 2 is that this utility model realizes the principle schematic to the control of light beam yawing moment.

Specific embodiment

As stated in the Background Art, the luminous point of existing LASER Light Source is all fixed on locus, in order to change The direction of light beam, will generally rotate whole light source module, operate very inconvenient.It is inclined in order to obtain a kind of controllable light beam The LASER Light Source for turning, this utility model devise a kind of LASER Light Source module, and Fig. 1 is the LASER Light Source mould of this utility model design The structural representation of group first embodiment.The LASER Light Source module includes semiconductor laser 101, reflecting mirror 102, transflection mirror 103, the first focus lens group 104, the second focus lens group 105, wavelength conversion layer 106, scattering layer 107.Semiconductor laser 101 outgoing collimation lasers 108, the collimation laser first pass through reflecting mirror 102 and reflect, and are then incident on transflection mirror 103.Transflection mirror Incident laser is divided into two beams, a branch of entrance reflected light path, a branch of entrance transmitted light path by 103.The optical axis of reflected light path and transmission The optical axis of light path is symmetrical arranged relative to transflection mirror 103, respectively has one group of focus lens group on the optical axis of two light paths.Reflected light path The first focus lens group 104 by the laser focusing reflected from transflection mirror 103 to wavelength conversion layer 106, the of transmitted light path Two focus lens groups 105 are by the laser focusing transmitted from transflection mirror 103 to scattering layer 107.In the present embodiment, wavelength conversion layer 106 using fluorescent material and are arranged on a reflection substrate, and it can absorb laser outgoing fluorescence, and the fluorescence of outgoing is passed through again First focus lens group 104 is collected, and becomes collimated beam, and the collimated beam will transmit through 103 outgoing of transflection mirror.Scattering layer 106 has There is scattered reflection, the laser scattered reflection again that the second focus lens group 105 is focused on by it, the laser of reflection Jing again Cross the second focus lens group 105 to collect, become collimated beam, the collimated beam will be exported by the reflection of 103 part of transflection mirror.Finally The fluorescence of reflected light path outgoing and the Laser synthesizing of transmitted light path outgoing a branch of emergent light 109.

In the present embodiment, it is preferred that transflection mirror 103 is relative to incoming laser beam slant setting at 45 °, so, reflection The optical axis of light path is mutually perpendicular to the optical axis of transmitted light path.Transflection mirror 103 can be as needed to the light splitting ratio of incident laser Rationally arrange, for example, the laser of reflex circuit accounts for the 80% of total incident laser, and the laser for transmiting road accounts for 20%, when swashing for transmission road 20% After scattering layer 107 is reflected, therein 80% all can be reflected away light by transflection mirror 103,20% meeting only therein It is again passed through transflection mirror 103 to slattern, thus the light energy lost altogether only has 20% × 20%=4%, is negligible substantially.

In the present embodiment, transflection mirror 103 is in addition to carrying out light splitting to incident laser, moreover it is possible to wavelength conversion layer 106 The fluorescence of outgoing is filtered.In order to obtain the luminous flux output of maximum, it is preferred that transflection mirror 103 should allow wavelength to turn as far as possible The fluorescence for changing 106 outgoing of layer passes through.

Used as a preferred embodiment of the present utility model, usual incident laser selects blue light, wavelength conversion layer 106 to select Yellow fluorescent powder, so, the blue light that the gold-tinted and scattering layer 107 of 106 outgoing of wavelength conversion layer are reflected back can be obtained White light.This utility model has very big degree of freedom, only need to change incident laser and fluorescent material into difference using the light-source structure The laser and fluorescent material of wavelength, can just obtain different output lights, and this simple replacement is also contained in guarantor of the present utility model Within the scope of shield.

In the present embodiment, the second focus lens group 105 of first focus lens group 104 and transmitted light path of reflected light path Can be with identical or different, in order that fluorescence and laser energy mix homogeneously, the first focus lens groups of Jing in final output light 109 104 fluorescence and the second focus lens groups of Jing 105 for collecting collimation are collected the laser of collimation and should have identical beam diameter and angle Distribution.

In the present embodiment, it is preferred that wavelength conversion layer 106 is arranged on a reflection substrate, form reflective wavelength Conversion layer, reflection substrate can help wavelength conversion layer to radiate.Scattering layer 107 is also disposed on a reflection substrate, forms scattering Reflecting layer, can improve reflectance.

In this utility model, an adjusting means is additionally provided with, using electric or hand control mode, by the regulation The controllable reflecting mirror 102 of device is rotated, so as to change the normal direction of reflecting mirror 102.Preferably, reflecting mirror 102 can be fixed On a metal rack, metal rack has the central rotating shaft of horizontal or vertical direction, can by an electric adjusting device Metal rack is forced around its axis of rotation, so as to change the laser direction of the reflection of reflected mirror 102.

Action principle figure of the present utility model is referring to Fig. 2.Reflecting mirror 102 have an equilbrium position, when adjusting means not During effect, reflecting mirror 102 is in its equilbrium position, the laser of the now reflection of reflected mirror 102, then through 103 light splitting of transflection mirror Become to transmit road and reflex circuit two-way laser, two-way laser is respectively parallel to the optical axis of respective light path.When adjusting means is forced instead When penetrating the rotation θ angles of mirror 102, the laser beam of the reflection of reflected mirror 102 will rotate 2 θ angles, and the reflection laser incides transflection mirror 103 On, the two-way laser Jing after 103 light splitting will also rotate 2 θ angles relative to respective optical axis.If the first focus lens group 104 is equivalent Focal length is F1, and the equivalent focal length of the second focus lens group 105 is F2, then the incident laser of reflected light path is through the first condenser lenses 104 converge after luminous point on wavelength conversion layer 106 position by displacement L1=F1 × tan (2 θ), the laser of transmitted light path in the same manner The position focused on scattering layer 107 also can displacement L2=F2 × tan (2 θ).The fluorescence sent from wavelength conversion layer after displacement Collected through respective condenser lenses with the laser of scattering layer reflection again and collimated, it is when being finally synthesizing emergent light 109, relatively each former The exit direction come all have rotated 2 θ angles, thus two-beam still preferable can overlap, and the effect being finally synthesizing is exactly emergent light 109 Have rotated 2 θ angles.In sum, as long as adjusting the direction of reflecting mirror 102, so that it may control the direction of last emergent light 109, when anti- When penetrating the rotation θ angles of mirror 102, emergent light 109 will rotate 2 θ angles towards corresponding direction.If reflecting mirror 102 is vertical with two Can rotate in two dimensions in the rotating shaft of its normal, i.e. reflecting mirror 102, then can control output light 109 and appoint in solid space Meaning deflection.

This utility model realizes the control to laser module output beam direction, usual feelings by rotating reflecting mirror 102 Under condition, reflecting mirror 102 is small-sized so that light beam yawing moment it is easy to control flexibly.

This utility model also proposed a kind of light-source system, including the beam-expanding collimation of above-mentioned LASER Light Source module and rear end System.As light-emitting window footpath limits, the emergent light 109 from above-mentioned LASER Light Source module outgoing is approximately parallel collimated light, but Still suffer from certain dispersion angle.The light beam less in order to obtain dispersion angle, can going out in above-mentioned LASER Light Source module Optical port adds beam-expanding collimation system, for example, a concavees lens and a convex lens group into confocal system, or two convex lenss The confocal system of composition, or the system of a concavees lens and a reflector composition, are designed by secondary light-distribution, can be obtained The optical system of various optical field distribution.

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 made using this utility model description and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in Other related technical fields, are included in scope of patent protection of the present utility model in the same manner.

Claims (8)

1. a kind of LASER Light Source module, it is characterised in that include：

Laser instrument, reflecting mirror, transflection mirror, the first focus lens group, the second focus lens group, wavelength conversion layer, scattering layer；

Wherein, the first focus lens group and the second focus lens group are symmetrical arranged with respect to transflection mirror；From the laser of laser emitting Beam, first passes through reflecting mirror reflection and is again incident on transflection mirror；The laser beam is divided into two beams by transflection mirror, it is a branch of after reflection by First focus lens group is focused on wavelength conversion layer, and another beam is focused on scattering layer by the second focus lens group Jing after transmission On；

Also include adjusting means, the angle of adjusting means scalable reflecting mirror, so as to change the laser light incided on transflection mirror Beam angle degree.

2. LASER Light Source module as claimed in claim 1, it is characterised in that the laser is blue laser；The wavelength turns Layer is changed for yellow fluorescence bisque, the yellow fluorescence bisque is coated on a high reflection substrate, absorbs incident laser, and by its It is converted into the different fluorescence of wavelength therewith.

3. LASER Light Source module as claimed in claim 1, it is characterised in that the scattering layer plays scattering to incident laser The effect of reflection.

4. LASER Light Source module as claimed in claim 2, it is characterised in that the transflection mirror is anti-to incident laser part Penetrate, fractional transmission, while transmiting the fluorescence from wavelength conversion layer outgoing.

5. LASER Light Source module as claimed in claim 1, it is characterised in that the adjusting means can control reflector alignment To any space angle.

6. LASER Light Source module as claimed in claim 5, it is characterised in that the reflecting mirror has an equilbrium position, when When reflecting mirror is located at its equilbrium position, the reflection laser beam formed Jing after transflection mirror beam splitting by incoming laser beam is poly- parallel to first Focus lens group, optical axis of the transmission laser beam parallel to the second focus lens group.

7. LASER Light Source module as claimed in claim 1, it is characterised in that first focus lens group and second focus on it is saturating Microscope group is identical.

8. a kind of light-source system, it is characterised in that including the LASER Light Source module described in claim 1-7, also expand including rear end Beam colimated light system.