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CN208737197U - A kind of Wavelength converter, laser source system and laser projection - Google Patents

A kind of Wavelength converter, laser source system and laser projection Download PDF

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Publication number
CN208737197U
CN208737197U CN201821615036.0U CN201821615036U CN208737197U CN 208737197 U CN208737197 U CN 208737197U CN 201821615036 U CN201821615036 U CN 201821615036U CN 208737197 U CN208737197 U CN 208737197U
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Prior art keywords
wavelength
laser
matrix
source system
wavelength conversion
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CN201821615036.0U
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Chinese (zh)
Inventor
刘金根
陈龙
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Wuxi Seemile Laser Display Technology Co Ltd
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Wuxi Seemile Laser Display Technology Co Ltd
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  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

The utility model embodiment is related to a kind of Wavelength converter, laser source system and laser projection, and Wavelength converter includes matrix and the wavelength conversion layer containing the wavelength conversion material for generating stimulated light under the excitation for the exciting light that laser issues;Described matrix is in hollow cylindrical, the reflecting layer that described matrix has substrate and is formed in substrate, the wavelength conversion layer is arranged in correspondence on the outer surface of described matrix along the circumferencial direction of matrix and the reflecting layer, or, described matrix is transparent base, and the wavelength conversion layer is formed on the inner surface of the matrix or on outer surface;The wavelength conversion layer includes one or more of red wavelength transition region, green wavelength transition region, blue wavelength transition region and yellow wavelengths transition region.The heat dissipation area of the Wavelength converter greatly increases, and the illuminated area of wavelength conversion material increases, and more evenly, the service life of wavelength conversion material is extended for irradiation.

Description

A kind of Wavelength converter, laser source system and laser projection
Technical field
The utility model belongs to laser equipment technical field, and in particular to a kind of Wavelength converter, laser source system And laser projection.
Background technique
Laser has good monochromaticjty, and encircled energy is high, and the directionality of collimation facilitates light path design, and brightness Height, the service life is long, and low energy consumption.Currently, a kind of mainstream laser source system in the market is laser fluorescence light-source system, swashed with blue The stimulated light that light excitation wavelength transition material generates is primary lights, and some is also using blue laser itself as primary lights.Excitation When light excitation wavelength transition material, a large amount of heat can be generated, wavelength conversion material temperature is caused to increase.Wavelength conversion material Transfer efficiency and the temperature for the wavelength conversion material that is excited are inversely proportional, and the temperature of general wavelength conversion material is more than to turn after 200 DEG C Change efficiency rapid decrease, also, the adhesive of mixed wavelengths transition material also can quick aging due to long-time high temperature, influence to make Improving laser power is needed, but power is bigger however, being intended to obtain higher brightness with the service life, when excitation wavelength transition material produces Raw heat is more.
Wavelength converter in the prior art is mostly disk structure, and wavelength conversion material is set in disk, excitation For light along the axial illumination wavelength transition material of Wavelength converter, the diameter of disc type Wavelength converter determines laser light source system The volume of system, laser power to be improved obtain high brightness, it is necessary to increase diameter to meet cooling requirements, and diameter increase will The volume of laser source system is caused to increase.Also, in current laser source system, wavelength convert material on Wavelength converter The exposure area of material is smaller, and usable floor area is only confined to the region of very little, can not achieve uniform irradiation, causes using area's service life It is low.
As it can be seen that using the laser source system of ventional disc Wavelength converter, due to the restriction of heat dissipation problem, it is difficult to real Existing high-power excitation, cannot be considered in terms of light-source system high brightness and miniaturization, also, the exposure area of wavelength conversion material is small, Irradiation is uneven, and the service life is low.
Utility model content
The technical issues of cannot be considered in terms of for the volume for solving above-mentioned laser source system and brightness, the utility model are implemented Example proposes a kind of Wavelength converter, including matrix and containing generating stimulated light under the excitation for the exciting light that laser issues Wavelength conversion material wavelength conversion layer;Described matrix is in hollow cylindrical, and described matrix has substrate and is formed in substrate On reflecting layer, the wavelength conversion layer is arranged in correspondence with along the circumferencial direction of matrix and the reflecting layer in the outer of described matrix On surface, alternatively, described matrix is transparent base, the wavelength conversion layer is formed on the inner surface of the matrix or outer surface On;The wavelength conversion layer includes red wavelength transition region, green wavelength transition region, blue wavelength transition region and yellow One or more of wavelength conversion region.
Further, the Wavelength converter further includes support be fixedly connected with described matrix, support described matrix Part, the supporting element close to described matrix axial end and be vertically arranged with the rotary shaft of described matrix.
Further, the supporting element is support plate or supporting spokes.
Further, the supporting element and described matrix are integrally formed.
Further, described matrix also has a non-wavelength transition region, the non-wavelength transition region be notch, transmissive portions or Reflecting part.
The utility model embodiment also proposes a kind of laser source system, the excitation including issuing excitation wavelength transition material The laser of light and as above one of described in Wavelength converter;Receive the wavelength convert dress for the exciting light that laser issues It sets and is laterally arranged or is disposed longitudinally in the laser source system.
Further, the laser source system further includes driving the Wavelength converter along the axis of its axially reciprocating To driving device.
Further, the exciting light is blue laser.
The utility model embodiment also proposes a kind of laser projection, the laser projection include one of as above described in Wavelength converter;Alternatively, the laser projection include as above one of described in laser source system.
The utility model embodiment the utility model has the advantages that the utility model embodiment propose Wavelength converter, due to adopting With hollow core structure, when being applied to laser source system, the heat dissipation area of Wavelength converter is greatly increased, wavelength convert The illuminated area of material increases, and more evenly, the service life of wavelength conversion material is extended, and therefore, can be improved laser for irradiation The brightness of power, laser source system is promoted, while can be realized the miniaturization of laser source system.
Detailed description of the invention
Fig. 1 a is the base structure schematic diagram for the Wavelength converter that the utility model embodiment proposes;
Fig. 1 b is the Wavelength converter structural schematic diagram that the utility model embodiment proposes;
Fig. 2 is a kind of laser source system structural schematic diagram that the utility model embodiment proposes;
Another laser source system structural schematic diagram that Fig. 3 proposes the utility model embodiment.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and Referring to attached drawing, the utility model is further described.But as known to those skilled in the art, the utility model is not limited to Attached drawing and following embodiment.
1 Wavelength converter of embodiment
The utility model embodiment proposes a kind of Wavelength converter 10, referring to Fig.1 a, Fig. 1 b, including matrix 11 and wave Long conversion layer 12;Described matrix 11 is used as the carrier of wavelength conversion layer 12, and the wavelength conversion layer setting is on the matrix;Institute It states wavelength conversion layer 12 and contains wavelength conversion material, the excitation for the exciting light that the wavelength conversion material can be issued in laser Lower generation stimulated light.
Described matrix is the ducted body of at least one end open, has hollow portion, for example, by metal material, transparent glass etc. It is made, substantially cylindrical, described matrix has cylindric substrate, and described matrix 11 has reflecting layer (not shown), institute Reflecting layer is stated along the outer surface that the circumferencial direction of substrate is formed in the substrate, constitutes a part of matrix, when substrate is When bright substrate, the reflecting layer is arranged on the inner surface of the substrate or on outer surface, when substrate is nontransparent substrate, institute It states reflecting layer to be arranged on the outer surface of the substrate, the reflectance layer is such as formed by plated film mode.In another reality It applies in mode, described matrix is transparent base, and the wavelength conversion layer is formed in described matrix along the circumferencial direction of matrix On surface or on outer surface.
In above-mentioned different embodiments, the wavelength conversion layer is arranged in correspondence with the reflecting layer in described matrix Inner surface on or outer surface on, the wavelength conversion layer along the circumferential direction includes one or more wavelength conversion regions, when When wavelength conversion region is multiple, different wavelength conversion regions contains the wavelength conversion material of different colours, in exciting light The lower stimulated light for generating different colours of excitation;The reflecting layer is for reflecting the stimulated light.As shown in Figure 1 b, the wavelength convert The region (121,122,123) of isolabeling does not represent different wavelength conversion regions on device.
The wavelength conversion region includes red wavelength transition region, green wavelength transition region, yellow wavelengths transition zone One or more of domain, blue wavelength transition region, are respectively provided with the wavelength conversion material of different colours;The wavelength convert Material, such as can be fluorescent material, specifically, for example, red fluorescence material, green fluorescent material, yellow fluorescent material, One of blue fluorescent material is a variety of.The wavelength conversion material for the excitation different colours that laser issues generates Stimulated light, such as red stimulated light, green stimulated light, yellow stimulated light, blue stimulated light.
Further, the Wavelength converter 10 further includes supporting element 13, and the exterior contour of the supporting element is substantially in round Shape, the axial end of close described matrix are simultaneously vertically arranged with the rotary shaft of described matrix, are fixedly connected with described matrix, It is used to support described matrix, also, the supporting element can be also used for the rotary driving part 14 of connection driving Wavelength converter. The supporting element, for example, support plate 13 or supporting spokes, the support plate body be substantially in it is disk-shaped, the support spoke refer to by From the center supporting element that radially the several mutually isolated support bar of Zhou Yanshen is constituted.
" close " inside for referring to the supporting element and being located at described matrix, it is coaxial with described matrix, it is set to matrix Axial end or end near or the circumference outer ring on a surface and an axial side wall for matrix of supporting element connect It connects.
Preferably, the supporting element and described matrix are integrally formed.
When work, under the driving of driving portion, Wavelength converter is pivoted, and the exciting light that laser issues exposes to Wavelength conversion layer, excitation wavelength transition material generate stimulated light, and stimulated light is reflected by the reflecting layer, can make after collecting For primary lights, it to be used for laser equipment, such as laser projection etc..
Further, described matrix 11 can also have non-wavelength transition region, and the non-wavelength transition region does not contain wave Long transition material.The non-wavelength transition region can for example be formed as notch, transmissive portions or reflecting part.The non-wavelength conversion Region and the wavelength conversion region are distributed along the circumferencial direction of described matrix.Increase non-wavelength transition region, light can be enriched Road design scheme provides more selections for the design of laser source system, to adapt to different actual conditions.
Hereinafter, illustratively proposing the specific embodiment of laser source system, following laser source systems are using above-mentioned Wavelength converter described in embodiment 1 is to solve technical problem to be solved in the utility model.Those skilled in the art's energy Enough to understand, on the basis of the content of this disclosure, in laser equipment field, the Wavelength converter is in laser light source system Set-up mode in system be those skilled in the art according to actual needs can flexible setting, therefore, the utility model swash Radiant system is not limited by following specific embodiments.
2 laser source system of embodiment
Referring to Fig. 2, illustratively, the present embodiment proposes a kind of laser source system, including laser 100, collimator apparatus 200, dodging device 300, dichroscope 400, convergence apparatus 500 and Wavelength converter described in embodiment 1 10.
The laser 100 is, for example, blue laser, emits blue laser, can be used as exciting light;
The collimator apparatus 200 is lens or lens group, and the exciting light for emitting laser 100 collimates;
Collimation exciting light of the dodging device 300 for collimation device 200 to be emitted carries out even light;
The dichroscope 400 is transmissive to the exciting light that the dodging device 300 is emitted, and reflection wavelength conversion equipment The stimulated light of 10 reflections;
The convergence apparatus 500 is lens or lens group, and the exciting light for being emitted to dichroscope 400 is assembled, And collect the stimulated light of Wavelength converter reflection;
The Wavelength converter 10 is used to receive the exciting light of the sending of laser 100, generates under the excitation of exciting light Stimulated light, and reflect stimulated light.
In the present embodiment, Wavelength converter 10 is horizontally installed in laser source system, and the laterally setting refers to When the laser source system is used for laser equipment, for example, laser projection, when the laser equipment normal level is placed, wave The central axis of long conversion equipment substantially with horizontal plane (i.e. with the thickness direction of Wavelength converter almost the same).Wavelength turns When changing device is laterally arranged, the thickness of laser source system can be substantially reduced, to reduce such as laser projection source, laser apparatus Standby volume.
The exciting light that laser 100 issues is incident to collimator apparatus 200, and the collimated light that collimator apparatus 200 is emitted is incident to Dodging device 300,300 pairs of dodging device incident exciting lights carry out even light, the excitation light transmission two of the outgoing of dodging device 300 It is assembled after to Look mirror 400 through convergence apparatus 500, then the wavelength conversion material on illumination wavelength conversion equipment 10, excitation wavelength turns Conversion materials generate stimulated light, and stimulated light is wavelength-converted the reflection of device 10, and the stimulated light of reflection is converged the collection of device 500, from The stimulated light that convergence apparatus 500 is emitted is reflected by dichroscope 400 again.
Preferably, the laser source system further includes axial drive means, and the driving device is for driving the wave Axially reciprocating of the long conversion equipment along Wavelength converter.Since Wavelength converter can move axially in reciprocal fashion, wave The area of long conversion layer can be bigger, and controlling Wavelength converter by control device can convert in different time illumination wavelength The different zones of layer being axially distributed when can be avoided high power laser and irradiating the wavelength conversion material of the same area repeatedly, produce Raw a large amount of heat leads to Wavelength converter service life reduction, also, such design allows to take more powerful laser, therefore, Higher brightness can be obtained.
3 laser source system of embodiment
Referring to Fig. 3, illustratively, the present embodiment proposes another laser source system, the difference with embodiment 2 It is that the mounting means of Wavelength converter 10 is different, in the present embodiment, Wavelength converter 10 is disposed longitudinally on the laser In light-source system.It is described it is longitudinally disposed refer to when the laser source system is for laser equipment, such as laser projection, When the laser equipment is normally placed, the central axis of Wavelength converter is substantially parallel with horizontal plane (i.e. and Wavelength converter Thickness direction it is substantially vertical).
4 laser source system of embodiment
In the present embodiment, Wavelength converter is by the inner surface of transparent base or on outer surface, along the circumferential direction It forms wavelength conversion layer to constitute, Wavelength converter does not have reflecting layer.The Wavelength converter is constituting laser source system When, light recyclable device is arranged by the hollow portion in Wavelength converter, such as includes the light recycling dress of convergence apparatus, reflection unit It sets, or light recyclable device including fiber coupler etc. collects the exciting light of stimulated light and/or transmission, that is, may be configured to laser Light-source system.Those skilled in the art according to the present disclosure can be in the case where not spending creative work, root It can be with flexible setting according to actual demand.
5 laser projection of embodiment
The present embodiment also proposes that a kind of laser projection, the laser projection include above-mentioned Wavelength converter.
The present embodiment also proposes that a kind of laser projection, the laser projection include one of above-mentioned laser source system.
It will be appreciated by those skilled in the art that on the basis of the content of this disclosure, in laser equipment field, wave The set-up mode of long conversion equipment and laser source system in laser projection be those skilled in the art according to actual needs It is capable of flexible setting, it is not necessary to repeat.
More than, the embodiments of the present invention is illustrated.But the utility model is not limited to above-mentioned implementation Mode.Within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done, should be included in Within the protection scope of the utility model.

Claims (9)

1. a kind of Wavelength converter, which is characterized in that including matrix and containing under the excitation for the exciting light that laser issues Generate the wavelength conversion layer of the wavelength conversion material of stimulated light;Described matrix be in hollow cylindrical, described matrix have substrate and The reflecting layer being formed in substrate, the wavelength conversion layer are arranged in correspondence with along the circumferencial direction of matrix and the reflecting layer in institute It states on the outer surface of matrix, alternatively, described matrix is transparent base, the wavelength conversion layer is formed in the inner surface of described matrix On upper or outer surface;The wavelength conversion layer includes red wavelength transition region, green wavelength transition region, blue wavelength conversion One or more of region and yellow wavelengths transition region.
2. Wavelength converter as described in claim 1, which is characterized in that the Wavelength converter further includes and the base Supporting element that body is fixedly connected, support described matrix, the supporting element close to described matrix axial end and with it is described The rotary shaft of matrix is vertically arranged.
3. Wavelength converter as claimed in claim 2, which is characterized in that the supporting element is support plate or supporting spokes.
4. Wavelength converter as claimed in claim 2, which is characterized in that the supporting element and described matrix are integrally formed.
5. Wavelength converter as described in claim 1, which is characterized in that described matrix also has non-wavelength transition region, The non-wavelength transition region is notch, transmissive portions or reflecting part.
6. a kind of laser source system, which is characterized in that including issue excitation wavelength transition material exciting light laser and Wavelength converter as described in one of claim 1-5;Receive the Wavelength converter for the exciting light that laser issues Laterally it is arranged or is disposed longitudinally in the laser source system.
7. laser source system as claimed in claim 6, which is characterized in that the laser source system further includes described in driving Axial drive means of the Wavelength converter along its axially reciprocating.
8. laser source system as claimed in claim 6, which is characterized in that the exciting light is blue laser.
9. a kind of laser projection, which is characterized in that the laser projection includes the wavelength as described in one of claim 1-5 Conversion equipment;Alternatively, the laser projection includes the laser source system as described in one of claim 6-8.
CN201821615036.0U 2018-09-30 2018-09-30 A kind of Wavelength converter, laser source system and laser projection Active CN208737197U (en)

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CN201821615036.0U CN208737197U (en) 2018-09-30 2018-09-30 A kind of Wavelength converter, laser source system and laser projection

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112782843A (en) * 2019-11-07 2021-05-11 台达电子工业股份有限公司 Wavelength conversion unit and lighting device
WO2021120718A1 (en) * 2019-12-16 2021-06-24 无锡视美乐激光显示科技有限公司 Fluorescence roller module, light source and projector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112782843A (en) * 2019-11-07 2021-05-11 台达电子工业股份有限公司 Wavelength conversion unit and lighting device
WO2021120718A1 (en) * 2019-12-16 2021-06-24 无锡视美乐激光显示科技有限公司 Fluorescence roller module, light source and projector

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