CN102819174A - Laser projection system - Google Patents
Laser projection system Download PDFInfo
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- CN102819174A CN102819174A CN201110156125XA CN201110156125A CN102819174A CN 102819174 A CN102819174 A CN 102819174A CN 201110156125X A CN201110156125X A CN 201110156125XA CN 201110156125 A CN201110156125 A CN 201110156125A CN 102819174 A CN102819174 A CN 102819174A
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- parallel beam
- blue light
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- ruddiness
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Abstract
The invention relates to a laser projection system which comprises a laser module, a red phosphor, a green phosphor, a blue phosphor, a first collimating lens, a second collimating lens, a third collimating lens, a prism and a scanning system lens. The laser module is provided with at least one single wavelength laser light source serving as the light source. The red phosphor, the green phosphor and the blue phosphor are respectively excited by the first wavelength laser light source to emit red light, green light and blue light. The first collimating lens, the second collimating lens and the third collimating lens are respectively arranged on radiating paths of the red light, the green light and the blue light and are respectively used for changing the red light, the green light and the blue light to a red light parallel light beam, a green light parallel light beam and a blue light parallel light beam. The prism refracts the red light parallel light beam, the green light parallel light beam and the blue light parallel light beam. The scanning system lens projects the red light parallel light beam, the green light parallel light beam and the blue light parallel light beam which are refracted by the prism to an aiming plane to form imaging pictures.
Description
Technical field
The present invention is about a kind of laser optical projection system, particularly about a kind of laser optical projection system of using the single wavelength laser light source.
Background technology
Existing projection arrangement adopts the bulb light source of halogen or electric arc more.Though this type of light source has the advantage of high briliancy, its many shortcoming is arranged, promptly power consumption is big, working temperature is high, the bulb life-span is short and price is high, because of problems such as need heat radiations volume weight all can't further dwindle.In recent years relevant industry also begins to research and develop utilizes the laser projector equipment of laser light as light source.If adopt laser light source simple and colorrendering quality is high as projector's structure of light source.And,,, therefore can make projector further microminiaturized because of the heat dissipation problem radiating module need occupy the suitable volume and the problem of weight because of it need not the projector like existing use based on halogen bulb.In sum, laser projector has advantages such as projection image frivolous, small and exquisite and that color reproducibility is good compared to the existing projector that uses based on halogen bulb.
Right existing optical projection system uses three kinds of complementary formation colors to show full-color image traditionally, therefore needs the three primary colors light source basically.Adopt laser light source as the projector of light source also with in this concept development, for example: need produce red, blue, green laser beam respectively with red, blue, green three kinds of laser light source.The right three look laser beam of using are still occupied certain volume, and each color beam need pass through the intensity distributions conversion, closes light, mediation, elimination hot spot (Speckle), diffraction beam split, could be after grating reduction or the like complex processing step as desirable projection light source.Therefore, truly have development to use necessity of single wavelength light source laser optical projection system.
Summary of the invention
The technical matters that the present invention will solve is; Use three look laser beam, take the defective of larger volume to laser optical projection system of the prior art; A kind of laser optical projection system is provided; Its laser module only uses the single wavelength laser light source, can simplify the laser optical projection system, and reduced volume also reduces cost.
The technical scheme that the present invention is adopted for its technical matters of solution is: a kind of laser optical projection system is provided, comprises laser module, redness, green and blue emitting phophor, first, second and third collimation lens, prism and scanning system lens.Laser module has at least one single wavelength laser light source as light source.Red, green and blue emitting phophor are respectively the first wavelength laser light source and excite and radiate ruddiness, green glow and blue light.First, second and third collimation lens is arranged at respectively on the path of ruddiness, green glow and blue light radiation, with so that ruddiness, green glow and blue light become ruddiness, green glow and blue light parallel beam respectively.Prismatic refraction ruddiness parallel beam, green glow parallel beam and blue light parallel beam.The scanning system lens then will be projected to imaging plane from ruddiness parallel beam, green glow parallel beam and the blue light parallel beam of prism, with the imaging picture that forms.
The laser optical projection system of embodiment of the present invention has following beneficial effect: only use the laser light source of single wavelength, do not have many shortcomings of aforementioned prior art, make that the laser projection system architecture is more simple, package count still less, manufacturing cost is lower.In addition, because structure is simple, colorrendering quality is high, and the quality of image also can further be improved.
Description of drawings
Fig. 1 representes the functional schematic of laser optical projection system of the present invention.
Embodiment
Please refer to Fig. 1, represent the functional schematic of laser optical projection system of the present invention.Laser optical projection system of the present invention comprises laser module 10, collimation lens 20-1, collimation lens 20-2, collimation lens 20-3, red-emitting phosphors 30-1, green-emitting phosphor 30-2, blue emitting phophor 30-3, the first collimation lens 40-1, the second collimation lens 40-2, the 3rd collimation lens 40-3, the first eyeglass 50-1, the second eyeglass 50-2, prismatic glasses 50-3, prism 60, two scan controllers 70 and scanning system lens 80.
Laser module 10 comprises single wavelength laser light source 10-1, single wavelength laser light source 10-2, single wavelength laser light source 10-3, and corresponding red-emitting phosphors 30-1, green-emitting phosphor 30-2, blue emitting phophor 30-3 produce required laser beam respectively.Laser optical projection system of the present invention more comprises three collimation lenses; Be arranged at respectively between single wavelength laser light source 10-1, single wavelength laser light source 10-2, single wavelength laser light source 10-3 and red-emitting phosphors 30-1, green-emitting phosphor 30-2, the blue emitting phophor 30-3; The laser beam that single wavelength laser light source 10-1, single wavelength laser light source 10-2, single wavelength laser light source 10-3 are produced exposes to red-emitting phosphors 30-1, green-emitting phosphor 30-2, blue emitting phophor 30-3 after bringing together and becoming parallel beam.
When red fluorophor 30-1, green-emitting phosphor 30-2, blue emitting phophor 30-3 are respectively single wavelength laser light source 10-1, single wavelength laser light source 10-2, when single wavelength laser light source 10-3 excites, promptly radiate ruddiness, green glow and blue light respectively.
The first collimation lens 40-1, the second collimation lens 40-2, the 3rd collimation lens 40-3 are positioned over respectively on the path of ruddiness, green glow and blue light radiation, with so that aforementioned ruddiness, green glow and blue light become ruddiness parallel beam, green glow parallel beam and blue light parallel beam.And, as shown in the figure in the embodiment that the present invention lifted, utilize on the path of ruddiness, green glow and blue light radiation, and the first eyeglass 50-1 before prism 60 penetrates ruddiness reflect green light and blue light.Utilization is arranged on the path of green glow and blue light radiation, and the second eyeglass 50-2 before prism 60 penetrates blue light, reflect green light.Utilization is arranged on the path of blue light radiation, and in the prismatic glasses 50-3 of prism 60 reflect blue.But the present invention is not as restriction, and the required change first eyeglass 50-1 of viewable design, the second eyeglass 50-2 and prismatic glasses 50-3 are provided with the position.
As shown in the figure; Prism 60 of the present invention is in order to receive ruddiness parallel beam, green glow parallel beam and the blue light parallel beam through the first eyeglass 50-1, the second eyeglass 50-2 and prismatic glasses 50-3; And refraction ruddiness parallel beam, green glow parallel beam and blue light parallel beam, make it be projected to scanning system lens 80.Scanning system lens 80 will be projected to imaging plane 90 from ruddiness parallel beam, green glow parallel beam and the blue light parallel beam of prism 60, for example: screen.70 of two scan controllers of the present invention utilize the control mode (not shown) of mechanical type or electronic type system that the refraction angle of prism 60, the crevice projection angle of scanning system lens 80 are controlled; Accuse the crevice projection angle of projection ruddiness parallel beam, green glow parallel beam and blue light parallel beam to imaging plane 90; Imaging plane 90 is carried out two (X, Y axle) complete scanning; Then can import image signal, be formed into the picture of picture according to the outside.
What deserves to be mentioned is that the present invention only uses the laser light source of single wavelength, for example: ultraviolet light.Therefore, do not have many shortcomings of aforementioned prior art, make that the laser projection system architecture is more simple, package count still less, manufacturing cost is lower.In addition, because structure is simple, colorrendering quality is high, and the quality of image also can further be improved.
Though the present invention discloses as above with regard to preferred embodiment, it is not in order to limit the present invention.Have common knowledge the knowledgeable in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (7)
1. a laser optical projection system is characterized in that, comprising:
Laser module has at least one single wavelength laser light source, with the light source as this laser optical projection system;
Red-emitting phosphors is for this first wavelength laser light source excites, to radiate ruddiness;
Green-emitting phosphor is for this first wavelength laser light source excites, to radiate green glow;
Blue emitting phophor is for this first wavelength laser light source excites, to radiate blue light;
First collimation lens is arranged on the path of this ruddiness radiation, with so that this ruddiness becomes the ruddiness parallel beam;
Second collimation lens is arranged on the path of this green glow radiation, with so that this green glow becomes the green glow parallel beam;
The 3rd collimation lens is arranged on the path of this blue light radiation, with so that this blue light becomes the blue light parallel beam;
Prism receives this ruddiness parallel beam, this green glow parallel beam and this blue light parallel beam, and reflects this ruddiness parallel beam, this green glow parallel beam and this blue light parallel beam; And
The scanning system lens, in order to projection from this ruddiness parallel beam, this green glow parallel beam and this blue light parallel beam of this prism to imaging plane, to be formed into the picture picture.
2. laser optical projection system as claimed in claim 1; It is characterized in that; More comprise at least one collimation lens; Be arranged at respectively between those single wavelength laser light source and this red-emitting phosphors, this green-emitting phosphor and this blue emitting phophor,, expose to this red-emitting phosphors, this green-emitting phosphor and this blue emitting phophor with so that those first wavelength laser light source produce parallel beam.
3. laser optical projection system as claimed in claim 1; It is characterized in that; More comprise two scan controllers, the crevice projection angle when controlling this ruddiness parallel beam of this scanning system lens projects, this green glow parallel beam and this blue light parallel beam to this imaging plane.
4. laser optical projection system as claimed in claim 1 is characterized in that, comprises that more first eyeglass is arranged on the path of this ruddiness, this green glow and the radiation of this blue light, and before this prism, with so that this ruddiness penetrates, reflects this green glow and blue light.
5. laser optical projection system as claimed in claim 1 is characterized in that, comprises that more second eyeglass is arranged on the path of this green glow and the radiation of this blue light, and before this prism, with so that this blue light penetrates, reflects this green glow.
6. laser optical projection system as claimed in claim 1 is characterized in that, comprises that more prismatic glasses is arranged on the path of this blue light radiation, and before this prism, in order to reflect this blue light.
7. laser optical projection system as claimed in claim 1 is characterized in that, wherein this single wavelength laser light source is a ultraviolet light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156125XA CN102819174A (en) | 2011-06-10 | 2011-06-10 | Laser projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156125XA CN102819174A (en) | 2011-06-10 | 2011-06-10 | Laser projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102819174A true CN102819174A (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110156125XA Pending CN102819174A (en) | 2011-06-10 | 2011-06-10 | Laser projection system |
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| Country | Link |
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| CN (1) | CN102819174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556964A (en) * | 2016-12-07 | 2017-04-05 | 上海激亮光电科技有限公司 | A kind of total-reflection type fluorescent wheel projection arrangement and projecting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091045A (en) * | 2001-09-17 | 2003-03-28 | Mitsubishi Electric Corp | Lighting optical system and projection type display device |
| JP2004325874A (en) * | 2003-04-25 | 2004-11-18 | Seiko Epson Corp | Projection type display device |
| JP2004341105A (en) * | 2003-05-14 | 2004-12-02 | Nec Viewtechnology Ltd | Projection type display device |
| CN101160257A (en) * | 2005-04-15 | 2008-04-09 | 松下电器产业株式会社 | Micromachine structure system and method for manufacturing same |
| US20100149496A1 (en) * | 2008-12-17 | 2010-06-17 | Casio Computer Co., Ltd. | Light source apparatus, light source control method, and projector apparatus |
| CN101937161A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Light supply apparatus and projector |
-
2011
- 2011-06-10 CN CN201110156125XA patent/CN102819174A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091045A (en) * | 2001-09-17 | 2003-03-28 | Mitsubishi Electric Corp | Lighting optical system and projection type display device |
| JP2004325874A (en) * | 2003-04-25 | 2004-11-18 | Seiko Epson Corp | Projection type display device |
| JP2004341105A (en) * | 2003-05-14 | 2004-12-02 | Nec Viewtechnology Ltd | Projection type display device |
| CN101160257A (en) * | 2005-04-15 | 2008-04-09 | 松下电器产业株式会社 | Micromachine structure system and method for manufacturing same |
| US20100149496A1 (en) * | 2008-12-17 | 2010-06-17 | Casio Computer Co., Ltd. | Light source apparatus, light source control method, and projector apparatus |
| CN101937161A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Light supply apparatus and projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556964A (en) * | 2016-12-07 | 2017-04-05 | 上海激亮光电科技有限公司 | A kind of total-reflection type fluorescent wheel projection arrangement and projecting method |
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Application publication date: 20121212 |