CN206727417U

CN206727417U - A kind of blue semiconductor laser excites Ce:The laser illumination system of YAG crystal

Info

Publication number: CN206727417U
Application number: CN201720195610.0U
Authority: CN
Inventors: 孙雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-02
Filing date: 2017-03-02
Publication date: 2017-12-08
Anticipated expiration: 2027-03-02

Abstract

A kind of blue semiconductor laser excites Ce：The illuminator of YAG crystal, including blue semiconductor laser, optical coupling lens group, optical fiber, Ce：YAG crystal modules, optical lens group, said elements are arranged in order in same light path.Collimation and focusing of wherein N number of (N >=1) blue semiconductor laser Jing Guo optical coupling lens group, coupled into optical fibres, multifiber can carry out binding and close beam, fused biconical taper can also be carried out and close beam, the blue-light semiconductor laser excitation come out from optical fiber has the Ce of high laser damage threshold：YAG crystal modules, the fluorescence (being excited to fluoresce) of 490~700nm wave bands is produced, and by Ce：The optical design of YAG crystal modules reaches to the blue laser of transmission and homogenizing for being excited to fluoresce, and optical lens group is to Ce：YAG crystal modules homogenize after light carry out distribution curve flux regulation, so as to produce the equal white light for lighting field.

Description

A kind of blue semiconductor laser excites Ce：The laser illumination system of YAG crystal

Technical field

A kind of laser illumination system is the utility model is related to, more particularly to a kind of blue semiconductor laser excites Ce：YAG The laser illumination system of crystal.

Background technology

In recent years, with the rapid development of LED illumination industry, laser lighting technology relies on higher conversion efficiency, smaller Light source volume, remote excitation fluorophor excites feature to turn into lighting engineering of future generation after LED illumination.

In patent CN104100895A, laser car light is typically obtained using blue-light semiconductor LASER Light Source excitated fluorescent powder White light, fluorescent material easily sustain damage when high power laser sources excite, because fluorescent material laser damage threshold is than relatively low, Stability, the reliability of LASER Light Source excitated fluorescent powder car light are affected.In order to meet the high power light source of high power density Use demand, patent CN106206910A propose using luminescent ceramic substitute fluorescent material, luminescent ceramic include YAG matrix and The even centre of luminescence being scattered in YAG matrix, the centre of luminescence are the YAG fluorescent powder particles of 10~20 μm of size of microcrystal.The method The YAG fluorescent powder particle of middle 10~20 μm of size of microcrystal can produce scattering to blue light and the light that is stimulated, at the same blue laser and The light that is stimulated can cause to reflect and be totally reflected by the intergranular interface of heterogeneity, so as to cause the power of emergent light to damage Consume larger.Using a kind of material high to blue-light semiconductor laser damage threshold, the industrialization for laser lighting is most important.

The content of the invention

In order to solve this problem, the utility model proposes a kind of blue semiconductor laser to excite Ce：YAG crystal swashs Lighting system, the shortcomings that for prior art, using light source of the blue semiconductor laser as laser lighting, through optics coupling Lens group coupled into optical fibres is closed, excites the Ce with high laser damage threshold：YAG crystal modules, then by optical lens group pair Ce：YAG crystal modules homogenize after light carry out distribution curve flux regulation, obtain high-brightness white-light.

The utility model provides a kind of blue semiconductor laser and excites Ce：The laser illumination system of YAG crystal, including： Blue semiconductor laser, optical coupling lens group, optical fiber, Ce：YAG crystal modules, optical lens group, said elements are arranged successively It is listed in same light path.

Collimation and focusing of wherein N number of (N >=1) blue semiconductor laser Jing Guo optical coupling lens group, couple entering light Fibre, multifiber can carry out binding and close beam, can also carry out fused biconical taper and close beam, the blue-light semiconductor laser come out from optical fiber Excite the Ce with high laser damage threshold：YAG crystal modules, the fluorescence of 490~700nm wave bands is produced, and by Ce： The optical design of YAG crystal modules reaches to the blue laser of transmission and homogenizing for being excited to fluoresce, and optical lens group is to Ce： Light after YAG crystal modules homogenize carries out the regulation of distribution curve flux, so as to produce the stabilization for lighting field, efficient high Brightness uniformity white light.

Brief description of the drawings

To further illustrate technology contents of the present utility model, with reference to embodiments and accompanying drawing is described in detail as after, its In：Fig. 1 is structural representation of the present utility model.

Fig. 2 is N number of (N >=1) blue semiconductor laser schematic diagram.

Embodiment

For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with specific embodiment, and Referring to the drawings, this hair utility model is further described.

Refer to shown in Fig. 1, the utility model provides a kind of blue semiconductor laser and excites Ce：The laser of YAG crystal Illuminator, including：

One blue semiconductor laser 1, for exciting Ce：YAG crystal, the blue semiconductor laser are wavelength 430nm-460nm blue semiconductor laser, as shown in Fig. 2 N number of (N >=1) blue semiconductor laser, each blue light half Conductor laser is coupled into an optical fiber with an optical coupling lens group；

One optical coupling lens group 2, the optical coupling lens group 2 are located on the output light path of blue semiconductor laser 1, For the laser of blue semiconductor laser 1 to be collimated and focused on, and collimation lens and condenser lens are coated with to indigo plant The high transmittance film of the wavelength of optical semiconductor laser 1, transmitance are more than 80%；

One optical fiber 3, the core diameter of optical fiber is 50 μm -1000 μm, and multifiber can carry out binding and close beam, can also be melted Melt drawing cone and close Shu Jinhang power expansions；

One Ce：YAG crystal 4, this crystal have high laser damage threshold, for exciting in Blue Semiconductor Devices laser Under, the fluorescence of 490~700nm wave bands is produced, while the blue laser of transmission and the fluorescence being stimulated are homogenized, Ce：YAG crystal Ce used in module 4：YAG crystal contains Ce³⁺Ion concentration is less than or equal to 2%, Ce：YAG crystal modules include Ce：YAG crystal structures The plated film on each surface of particular design, crystal and external transmission or reflection optical element；

One optical lens group 5, it is made up of the sphere and non-spherical lens of different focal, for Ce：YAG crystal modules 4 The light sent carries out the regulation of distribution curve flux, so as to produce the equal white light for lighting field.

Particular embodiments described above, entered for the purpose of this utility model, technical scheme and beneficial effect One step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, it is not limited to this Utility model, it is all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements done etc., it all should wrap It is contained within the scope of protection of the utility model.

Claims

1. a kind of blue semiconductor laser excites Ce：The laser illumination system of YAG crystal, including：

One blue semiconductor laser (1), wavelength 430nm-460nm, for exciting Ce：YAG crystal；

One optical coupling lens group (2), the optical coupling lens group (2) are located at the output light path of blue semiconductor laser (1) On, for the laser of blue semiconductor laser (1) to be collimated and focused on, coupled into optical fibres；

One optical fiber (3), for transmitting blue-light semiconductor laser, multifiber can carry out binding and close beam, can also be melted Cone is drawn to close beam；

One Ce：YAG crystal modules (4), under the exciting of Blue Semiconductor Devices laser, producing the glimmering of 490~700nm wave bands Light, while the blue laser of transmission and the fluorescence being stimulated are homogenized, Ce：YAG crystal modules include Ce：YAG crystal structures are special Different design, the plated film on each surface of crystal and external transmission or reflection optical element；

One optical lens group (5), for carrying out the regulation of distribution curve flux to the light sent.

2. a kind of blue semiconductor laser as claimed in claim 1 excites Ce：The laser illumination system of YAG crystal, wherein The blue semiconductor laser (1) be wavelength 430nm-460nm blue semiconductor laser, blue semiconductor laser number Measure and be coupled into an optical fiber with an optical coupling lens group for N >=1, each blue semiconductor laser.

3. a kind of blue semiconductor laser as claimed in claim 1 excites Ce：The laser illumination system of YAG crystal, wherein The optical coupling lens group (2) is located on the output light path of blue semiconductor laser (1), for blue-light semiconductor laser The laser of device (1) is collimated and focused on, and collimation lens and condenser lens are coated with to blue semiconductor laser (1) ripple Long high transmittance film, transmitance are more than 80%.

4. a kind of blue semiconductor laser as claimed in claim 1 excites Ce：The laser illumination system of YAG crystal, wherein The core diameter of the optical fiber (3) is 50 μm -1000 μm, and multifiber can carry out binding and close beam, can also carry out fused biconical taper conjunction Shu Jinhang power expansions.

5. a kind of blue semiconductor laser as claimed in claim 1 excites Ce：The laser illumination system of YAG crystal, wherein The Ce：YAG crystal modules (4) include Ce：YAG crystal structures particular design, each surface of crystal plated film and it is external transmission or Reflective optical devices.

6. a kind of blue semiconductor laser as claimed in claim 1 excites Ce：The laser illumination system of YAG crystal, wherein The optical lens group (5), is made up of the sphere and non-spherical lens of different focal, for Ce：YAG crystal modules (4) institute The light sent carries out the regulation of distribution curve flux.