CN209281142U - A kind of indigo plant laser light source optical system - Google Patents
A kind of indigo plant laser light source optical system Download PDFInfo
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- CN209281142U CN209281142U CN201822135783.0U CN201822135783U CN209281142U CN 209281142 U CN209281142 U CN 209281142U CN 201822135783 U CN201822135783 U CN 201822135783U CN 209281142 U CN209281142 U CN 209281142U
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- light source
- laser light
- indigo plant
- optical system
- source optical
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Abstract
The utility model discloses a kind of blue laser light source optical systems, which is characterized in that the indigo plant laser light source optical system includes blue laser light source module, telescopic system, dichronic mirror (3), imaging system, fluorescent wheel (6)；The utility model provides a kind of blue laser light source optical system, by laser beam compression that blue laser issues and projects on fluorescent wheel, excitation fluorescent material generates yellow light, and yellow light is collected, and provides yellow light sources for projector.
Description
Technical field
The utility model belongs to optical imagery instrument field, and in particular to a kind of indigo plant laser light source optical system.
Background technique
Blue light source is that the following projection is aobvious as having many advantages, such as that brightness is high, colour gamut is wide, color saturation is high, low in energy consumption
Show the main developing direction in field.Since modern digital projector product is born, projection manufacturer is never abandoned, to first entering light
The pursuit of source technology.Light source product is in the actual performance of projector, in that case it can be decided that the brightness of product, color, service life, stabilization
Property, maintenance period and life-cycle use cost.
Traditional mercury lamp light source, although own cost is low, brightness is high, color, service life, stable sex expression are bad, especially
It is high brightness just throwing application maintenance period it is very short, life cycle cost is also very high (needing to constantly change new light bulb).
Blue laser light source has higher brightness compared to traditional mercury lamp light source, and the longer service life swashs relative to three primary colours
Radiant has lower cost.
The design of blue laser light source optical system is the key technology in blue laser light source research and development, and design direct relation is blue
The fluorescence conversion efficiency of laser light source, or even directly determine the efficiency of light energy utilization of blue laser light source.
Utility model content
For at least one of prior art the above defects or improvement requirements, the utility model provides a kind of blue laser
Light source optical system by laser beam compression that blue laser issues and projects on fluorescent wheel, and excitation fluorescent material generates yellow light, and will
Yellow light collects, and provides yellow light sources for projector.
To achieve the above object, according to the one aspect of the utility model, a kind of blue laser light source optical system is provided,
The indigo plant laser light source optical system includes blue laser light source module, telescopic system, dichronic mirror, imaging system, fluorescent wheel；
For emitting parallel blue laser beam, described look in the distance is set gradually in optical path is the indigo plant laser light source module
System, dichronic mirror, imaging system, fluorescent wheel, and the telescopic system and imaging system are arranged in the dichronic mirror two sides in dog-ear；
The telescopic system is used to compress the bore of blue laser beam；
The dichronic mirror is for reflecting blue light, transmission yellow light；
The imaging system is used for blue laser beam focusing in the fluorescent wheel；
The fluorescent wheel be used under the excitation of blue laser generate lambert's volume scattering yellow light, the imaging system be also used to by
Yellow light receives light collimation and is oriented to the dichronic mirror, transmits through the dichronic mirror, is supplied to projector.
Preferably, the telescopic system is by the first telephoto lens and the second telephoto lens, along blue laser optical path successively front and back
Setting.
Preferably, first telephoto lens are falcate positive lens, and second telephoto lens are double-concave negative lens.
Preferably, the imaging system is made of the first imaging len and the second imaging len, successively along blue laser optical path
Front and back setting.
Preferably, first imaging len is aspherical convexo-plane positive lens, and second imaging len is convexo-plane
Positive lens.
Preferably, second imaging len is quartz glass material.
Preferably, the distance between the planar base surface side of second imaging len and the fluorescent wheel are 1-2mm.
Preferably, the diameter of first telephoto lens is greater than the diameter of second telephoto lens；First imaging
The diameter of lens is greater than the diameter of second imaging len.
Preferably, the dichronic mirror is coated with anti-blue thoroughly yellow dichroic coating.
Preferably, yellow light transmits and is additionally provided with lamp guide in the optical path at the dichronic mirror rear, is connected by the lamp guide
The projector.
Above-mentioned preferred feature can be combined with each other as long as they do not conflict with each other.
In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following
Beneficial effect:
1, the numerical aperture of the blue laser light source optical system of the utility model is up to 0.83, solves in blue laser light source
The phosphor collection problem being most difficult to the phosphor collection that nearly 180 ° dissipate and carries out shaping, improves the luminous energy of light source using the technology
Utilization rate, effective efficiency of light energy utilization is up to 90% or more.
2, in the blue laser light source optical system of the utility model, the material of the second imaging len is molten for high melting point glass-
Fused silica, coefficient of linear thermal expansion is minimum, and heat resistance is very high, is 1100~1200 DEG C commonly using temperature, can be to avoid second
Imaging len distance high-temperature fluorescent wheel is relatively close and the problem of burst.
3, blue first imaging len of laser light source optical system of the utility model uses aspheric design, can be preferably
Aberration correction projects blue laser more accurately on fluorescent wheel.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the blue laser light source optical system of the utility model；
Fig. 2 is the point range figure of the blue laser light source optical system of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.With reference to embodiment to this
Utility model is further described.
As a kind of better embodiment of the utility model, as shown in Figure 1, the utility model provides a kind of blue laser light
Source optical system, the indigo plant laser light source optical system include blue laser light source module, telescopic system, dichronic mirror 3, imaging system
System, fluorescent wheel 6.
For emitting parallel blue laser beam, described look in the distance is set gradually in optical path is the indigo plant laser light source module
System, dichronic mirror 3, imaging system, fluorescent wheel 6, and the telescopic system and imaging system are in dog-ear cloth in 3 two sides of dichronic mirror
It sets；The telescopic system is used to compress the bore of blue laser beam；The dichronic mirror 3 is for reflecting blue light, transmission yellow light；It is described
Imaging system is used for blue laser beam focusing in the fluorescent wheel 6；The fluorescent wheel 6 under the excitation of blue laser for producing
Raw lambert's volume scattering yellow light, the imaging system, which is also used to receiving yellow light into light collimation, is oriented to the dichronic mirror 3, through the dichronic mirror
3 transmissions, are supplied to projector.
Preferably, the telescopic system is by the first telephoto lens 1 and the second telephoto lens 2, along blue laser optical path successively before
After be arranged.First telephoto lens 1 are falcate positive lens, and second telephoto lens 2 are double-concave negative lens, by Lan Jiguang
The collimated light beam that light source module issues is parallel with 2 boil down to half bore of the second telephoto lens through the first telephoto lens 1
Light.
Preferably, the dichronic mirror 3 is coated with anti-blue thoroughly yellow dichroic coating.Preferably, yellow light transmits 3 rear of dichronic mirror
It is additionally provided with lamp guide in optical path, the projector is connected by the lamp guide.
Preferably, the imaging system is made of the first imaging len 4 and the second imaging len 5, along blue laser optical path according to
Secondary front and back setting.Preferably, first imaging len 4 is aspherical convexo-plane positive lens, and second imaging len 5 is flat
Convex positive lens, compressed blue collimated light beam are reflected into the first imaging len 4 and the second imaging len 5 through dichronic mirror 3,
It focuses on fluorescent wheel 6.Blue LASER Excited Fluorescence substance generates lambert's volume scattering yellow light, and yellow light passes through (the first one-tenth of imaging system
As lens 4 and the second imaging len 5) it receives light and collimate and white light is synthesized with blue light by dichronic mirror transmission arrival lamp guide, be
Projector provides lighting source.Wherein, blue light should be imaged and project on fluorescent wheel by imaging system, again excite blue light glimmering
The yellow light for lambert's volume scattering distribution that stimulative substance generates collects, so the optical system numerical aperture is big, up to 0.83, from
The point range figure of Fig. 2 is it is found that the imaging effect of the utility model is significant.
Second imaging len 5 is quartz glass material.The planar base surface side of second imaging len 5 with it is described glimmering
The distance between halo 6 is 1-2mm.In the blue laser light source optical system of the utility model, the material of the second imaging len is
High melting point glass-vitreous silica, coefficient of linear thermal expansion is minimum, and heat resistance is very high, is 1100~1200 DEG C commonly using temperature,
Can be relatively close to avoid the second imaging len distance high-temperature fluorescent wheel and the problem of burst.The blue laser light source optics of the utility model
The first imaging len of system uses aspheric design, can preferably aberration correction, so that blue laser is more accurately projected fluorescence
On wheel.
As shown in Figure 1, the diameter of first telephoto lens 1 is greater than the diameter of second telephoto lens 2；Described first
The diameter of imaging len 4 is greater than the diameter of second imaging len 5.
Following table gives the design parameter of the optical system, describe respectively the face types of the front and rear surfaces of each lens, curvature,
Thickness/interval and material.
The numerical aperture of the blue laser light source optical system of the utility model is up to 0.83, solves in blue laser light source most
Difficult phosphor collection problem the phosphor collection that nearly 180 ° dissipate and carries out shaping using the technology, improves the luminous energy benefit of light source
With rate, effective efficiency of light energy utilization is up to 90% or more.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of indigo plant laser light source optical system, which is characterized in that the indigo plant laser light source optical system includes blue laser light source
Module, telescopic system, dichronic mirror (3), imaging system, fluorescent wheel (6)；
The indigo plant laser light source module for emitting parallel blue laser beam, set gradually in optical path the telescopic system,
Dichronic mirror (3), imaging system, fluorescent wheel (6), and the telescopic system and imaging system are in folding in the dichronic mirror (3) two sides
Angle arrangement；
The telescopic system is used to compress the bore of blue laser beam；
The dichronic mirror (3) is for reflecting blue light, transmission yellow light；
The imaging system is used for blue laser beam focusing in the fluorescent wheel (6)；
The fluorescent wheel (6) be used under the excitation of blue laser generate lambert's volume scattering yellow light, the imaging system be also used to by
Yellow light receives light collimation and is oriented to the dichronic mirror (3), transmits through the dichronic mirror (3), is supplied to projector.
2. indigo plant laser light source optical system as described in claim 1, it is characterised in that:
The telescopic system is by the first telephoto lens (1) and the second telephoto lens (2), along the successively front and back setting of blue laser optical path.
3. indigo plant laser light source optical system as claimed in claim 2, it is characterised in that:
First telephoto lens (1) are falcate positive lens, and second telephoto lens (2) are double-concave negative lens.
4. such as the described in any item blue laser light source optical systems of claim 2-3, it is characterised in that:
The imaging system is made of the first imaging len (4) and the second imaging len (5), and along blue laser optical path, successively front and back is set
It sets.
5. indigo plant laser light source optical system as claimed in claim 4, it is characterised in that:
First imaging len (4) is aspherical convexo-plane positive lens, and second imaging len (5) is that convexo-plane is just saturating
Mirror.
6. indigo plant laser light source optical system as claimed in claim 5, it is characterised in that:
Second imaging len (5) is quartz glass material.
7. indigo plant laser light source optical system as claimed in claim 6, it is characterised in that:
The distance between planar base surface side and the fluorescent wheel (6) of second imaging len (5) are 1-2mm.
8. indigo plant laser light source optical system as claimed in claim 7, it is characterised in that:
The diameter of first telephoto lens (1) is greater than the diameter of second telephoto lens (2)；First imaging len
(4) diameter is greater than the diameter of second imaging len (5).
9. indigo plant laser light source optical system as described in claim 1, it is characterised in that:
The dichronic mirror (3) is coated with anti-blue thoroughly yellow dichroic coating.
10. indigo plant laser light source optical system as claimed in claim 4, it is characterised in that:
It is additionally provided with lamp guide in the optical path at yellow light transmission dichronic mirror (3) rear, passes through the lamp guide and connects the projection
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135783.0U CN209281142U (en) | 2018-12-19 | 2018-12-19 | A kind of indigo plant laser light source optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135783.0U CN209281142U (en) | 2018-12-19 | 2018-12-19 | A kind of indigo plant laser light source optical system |
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| Publication Number | Publication Date |
|---|---|
| CN209281142U true CN209281142U (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822135783.0U Active CN209281142U (en) | 2018-12-19 | 2018-12-19 | A kind of indigo plant laser light source optical system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471243A (en) * | 2019-08-21 | 2019-11-19 | 宁波锦辉光学科技有限公司 | A kind of high brightness and resolution is big apart from automobile LOGO projection optical system |
| CN112728430A (en) * | 2021-01-25 | 2021-04-30 | 广东八通激光设备有限公司 | Lamp for outputting white light based on blue laser excitation fluorescent powder and light emitting mode |
-
2018
- 2018-12-19 CN CN201822135783.0U patent/CN209281142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471243A (en) * | 2019-08-21 | 2019-11-19 | 宁波锦辉光学科技有限公司 | A kind of high brightness and resolution is big apart from automobile LOGO projection optical system |
| CN112728430A (en) * | 2021-01-25 | 2021-04-30 | 广东八通激光设备有限公司 | Lamp for outputting white light based on blue laser excitation fluorescent powder and light emitting mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230310 Address after: 200120 3rd Floor, Building 8, No. 166, Mindong Road, Pudong New Area, Shanghai Patentee after: SHANGHAI HONGSHUO OPTICAL TECHNOLOGY Co.,Ltd. Address before: 430074 Room All-633, 1st Floor, No. 1, Guanggu Chuangye Street, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan Chuanyuan Photoelectric Co.,Ltd. |
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| TR01 | Transfer of patent right |