CN102478752A - Light source module of projector - Google Patents
Light source module of projector Download PDFInfo
- Publication number
- CN102478752A CN102478752A CN2010105711995A CN201010571199A CN102478752A CN 102478752 A CN102478752 A CN 102478752A CN 2010105711995 A CN2010105711995 A CN 2010105711995A CN 201010571199 A CN201010571199 A CN 201010571199A CN 102478752 A CN102478752 A CN 102478752A
- Authority
- CN
- China
- Prior art keywords
- light source
- reflecting surface
- projector
- spectro
- red light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention relates to a light source module of a projector. The light source module comprises a beam splitter, a red light source, a blue light source and a green light source, wherein the beam splitter comprises a first reflecting surface and a second reflecting surface; an included angle is formed between normal lines of the first reflecting surface and the second reflecting surface, and the included angle is more than 165 degrees and less than 180 degrees; a first beam-splitting film is plated on the first reflecting surface; a second beam-splitting film is plated on the second reflecting surface; the first beam-splitting film and the second beam-splitting film can be penetrated by the red light source; the red light source is positioned outside the first reflecting surface of the beam splitter; the blue light source is positioned outside the second reflecting surface of the beam splitter; the green light source is positioned outside the second reflecting surface of the beam splitter; and the red light source is arranged apart from the other two light sources, so as to achieve the effect of enhancing the heat dissipation of the red light source, thereby achieving the purpose of prolonging the service life of the red light source.
Description
Technical field
The present invention is relevant with projector, more detailed is meant a kind of projector light source module.
Background technology
See also Fig. 1, be known projector light source module 110, the red light source 111 of this projector light source module 110, green light source 112 and blue-light source 113 are around the outside of two spectroscopes 120.These two spectroscopes 120 have the effect that provides particular color light to penetrate or cause reflection, required light and color when providing projector projection to form chromatic image to impel the lens array 130 of these trichromatic smooth directive spectroscope 120 belows, to use.
Though the arrangement mode of above-mentioned each light source 111～113 can impel projector to reach the purpose of colour projection; But this red light source 111 is under the radiating condition identical with green light source 112 and blue-light source 113, because of the temperature characterisitic of red light; To make this red light source 111 when using; Cause the phenomenon of its base temperature overheating easily, and then cause the rate of decay of lumen value faster than green light source 112 and blue-light source 113, this situation will cause red light source shorter than green light source 112 or blue-light source 113 111 serviceable lifes; In other words; Projector will need keep in repair because of red light source 112 regular damages, and keep in repair the spent time-histories and the expenditure of money, will definitely bring many inconvenience of user and puzzlement.
Summary of the invention
The technical matters that the present invention will solve is; Red light source to projector light source module in the prior art is fragile, cause the often defective of maintenance of needs; A kind of projector light source module is provided, and the serviceable life that can improve red light source is to reduce projector's maintenance probability.
The technical solution adopted for the present invention to solve the technical problems is, a kind of projector light source module is provided, and includes spectroscope, red light source, blue-light source and green light source.Wherein, this spectroscope has first reflecting surface and second reflecting surface, is formed with an angle between the normal of the normal of this first reflecting surface and this second reflecting surface, and this angle is greater than 165 degree but less than 180 degree; And this first reflecting surface is coated with first spectro-film, and this second reflecting surface is coated with second spectro-film, and this first spectro-film and this second spectro-film can supply red light to penetrate; This red light source is positioned at the outside of this spectroscopical first reflecting surface; This blue-light source is positioned at the outside of this spectroscopical second reflecting surface; This green light source is positioned at the outside of this spectroscopical second reflecting surface.
The projector light source module of embodiment of the present invention; Has following beneficial effect: not only can make projector can throw chromatic image; More utilize red light source and blue-light source and green light source are separated independent the setting, strengthen the radiating effect of red light source, to reduce the rate of decay of its stream name value; And then reach the increase red light source purpose in serviceable life, use the probability that reduces projector's maintenance.
Description of drawings
Fig. 1 is the synoptic diagram of known projection machine light source module.
Fig. 2 is the synoptic diagram of the present invention's one preferred embodiment.
Fig. 3 is the spectroscope synoptic diagram of the invention described above preferred embodiment.
Fig. 4 is the blue light path synoptic diagram of the invention described above preferred embodiment.
Fig. 5 is the green glow path synoptic diagram of the invention described above preferred embodiment.
Fig. 6 is the ruddiness path synoptic diagram of the invention described above preferred embodiment.
Fig. 7 is the green glow path synoptic diagram of another preferred embodiment of the present invention.
Fig. 8 is the blue light path synoptic diagram of another preferred embodiment of the invention described above.
Embodiment
For being illustrated more clearly in the present invention, lift now that preferred embodiment and conjunction with figs. specify as after.
Please cooperate shown in Figure 2ly, be the projector light source module 1 of preferred embodiment of the present invention, include spectroscope 10, blue-light source 20, green light source 21, red light source 22 and two collimation eyeglasses 30,30 '.Wherein:
See also Fig. 3, this spectroscope 10 is the wedge type spectroscope, and has narrow end 10a, wide end 10b, and first reflecting surface 11 and second reflecting surface 12 are formed at this narrow end 10a between this wide end 10b.Wherein, this narrow end 10a is near this red light source 22, and this wide end 10b is then away from this red light source 22.Be formed with between the normal L1 of this first reflecting surface 11 and the normal L2 of this second reflecting surface 12 greater than 165 degree but less than the angle theta of 180 degree, aforesaid angular range will impel a part can be projeced into the precalculated position again with the mode of more concentrating through the light of this spectroscope 10 reflections.In addition, be coated with the first spectro-film 11a on this first reflecting surface 11, this first spectro-film 11a has the red light of providing and penetrates, but the characteristic of reflect blue light; Be coated with the second spectro-film 12a on this second reflecting surface 12, this second spectro-film 12a has the red light of providing and blue light penetrates, but the characteristic of reflects green.
This blue-light source 20, this green light source 21 are to be example with the light emitting diode with this red light source 22 in the present embodiment, but not as limit, aforementioned light source can be single light emitting diode, or constitute jointly for a plurality of light emitting diodes.As shown in Figure 2, this blue-light source 20 and this green light source 21 1 are located on the outside of second reflecting surface 12 of this spectroscope 10, and this green light source 21 than this blue-light source 20 near this red light source 22.Again; Spectroscope 10 of the present invention uses the purpose of wedge type promptly making this blue-light source 20 and this green light source 21 of being located at the same side; Its light such as grade can be projeced into the precalculated position through this first reflecting surface 11 of these spectroscope 10 different angles and the reflex of this second reflecting surface 12, and using effectively provides projector to form required blue light and the green light of chromatic image.22 of this red light sources are positioned at the outside of first reflecting surface 11 of this spectroscope 10, form the required red light of chromatic image in order to projector to be provided.What deserves to be mentioned is; This preferred embodiment utilization was opened this red light source 22 in 21 minutes with this blue-light source 20 and green light source and is arranged at different both sides; So that this red light source 22 can be got more radiating resource and heat-dissipating space, this will make this red light source 22 be able in radiating condition running preferably, and then cause this red light source 22 to be difficult for producing the phenomenon that the base temperature overheating is arranged; Use and reduce its stream name value rate of decay, to reach the purpose that improves its serviceable life.
Those collimation eyeglasses 30,30 ' have the effect that the subtended angle (divergence) of normal beam is eliminated, and promptly as far as possible the light of light source are become directional light.Wherein, collimation eyeglass 30 is between this spectroscope 10 and this blue-light source 20 and this green light source 21, and collimation eyeglass 30 ' is then between this spectroscope 10 and this red light source 22.
The opticpath of those light sources 20～22 of following Fig. 4-6 explanation; Wherein, After Fig. 4 representes that the blue light of these blue-light source 20 generations passes this collimation eyeglass 30; Penetrate second reflecting surface 12 of this spectroscope 10, and when running into this first reflecting surface 11, receive this first spectro-film 11a effect, toward having the lens array 40 directions reflection that can make light configuration homogenising; Fig. 5 representes that the green light that this green light source 21 produces then is when running into this second reflecting surface 12, receives this second spectro-film 12a effect, toward this lens array 40 directions reflection; Fig. 6 representes that the red light that this red light source 22 produces then is after penetrating first reflecting surface 11 and second reflecting surface 12 of this spectroscope 10, penetrates toward this lens array 40.
The light that those light sources 20～22 produce is just penetrated the dmd chip (figure slightly) toward projector through after this lens array 40, uses this projector to be reached can throw the purpose that is formed with chromatic image.
Can know more than comprehensive; Projector light source module 1 provided by the present invention not only can reach and make projector can throw chromatic image; More utilize this red light source 22 and this blue-light source 20 and green light source were opened independent setting in 21 minutes, strengthen the radiating effect of this red light source 22, to reduce the rate of decay of its stream name value; And then reach and increase this red light source purpose in 22 serviceable lifes, use the probability that reduces projector's maintenance.
Remove the described configuration of the foregoing description, see also Fig. 7-8, be another preferred embodiment of the present invention, the green light source 50 that difference is projector light source module 2 than blue-light source 51 near lens array 70.In addition, for the above-mentioned light source 50,51 of correspondence is provided with the change of position, first reflecting surface 61 and 62 of second reflectings surface are coated with the first spectro-film 61a and the second spectro-film 62a with the foregoing description different optical characteristic respectively.This first spectro-film 61a and this second spectro-film 62a can supply red light to penetrate equally, but the first spectro-film 61a changes reflects green into, and the second spectro-film 62a then changes into and supplies green light to penetrate, but reflect blue light.The blue light of using the green light that makes this green light source 50 and this blue-light source 51 gets the direction reflection of number of lenses group 70 in the past, so that required light of projection and color to be provided.
Above-described structural change can't influence the purpose of projector's projection chromatic image, and this red light source has preferable radiating effect equally.
The above is merely several preferable possible embodiments of the present invention, uses equivalent structure and method for making variation that instructions of the present invention and claim are done such as, ought to be included in the claim of the present invention.
Claims (5)
1. a projector light source module is characterized in that, includes:
Spectroscope has first reflecting surface and second reflecting surface, is formed with an angle between the normal of the normal of this first reflecting surface and this second reflecting surface, and this angle is greater than 165 degree but less than 180 degree; This first reflecting surface is coated with first spectro-film, and this second reflecting surface is coated with second spectro-film, and this first spectro-film and this second spectro-film can supply red light to penetrate;
Red light source is positioned at this spectroscopical first reflecting surface side;
Blue-light source is positioned at this spectroscopical second reflecting surface side;
Green light source is positioned at this spectroscopical second reflecting surface side.
2. projector light source module as claimed in claim 1 is characterized in that, this first spectro-film reflect blue light; This second spectro-film is that blue light penetrates, but reflects green.
3. projector light source module as claimed in claim 1 is characterized in that, this first spectro-film reflects green; This second spectro-film is that green light penetrates, but reflect blue light.
4. projector light source module as claimed in claim 1 is characterized in that, this spectroscope is the wedge type spectroscope, nearly this red light source of its narrow termination, with and wide end away from this red light source.
5. projector light source module as claimed in claim 1 is characterized in that, more includes a plurality of collimation eyeglasses, and those collimation eyeglasses lay respectively between those light sources and this spectroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571199.5A CN102478752B (en) | 2010-11-23 | 2010-11-23 | Light source module of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571199.5A CN102478752B (en) | 2010-11-23 | 2010-11-23 | Light source module of projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478752A true CN102478752A (en) | 2012-05-30 |
| CN102478752B CN102478752B (en) | 2014-02-19 |
Family
ID=46091440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010571199.5A Active CN102478752B (en) | 2010-11-23 | 2010-11-23 | Light source module of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478752B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713456A (en) * | 2012-10-09 | 2014-04-09 | 日立视听媒体股份有限公司 | Light source unit and projection display system using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050111692A (en) * | 2004-05-22 | 2005-11-28 | 삼성전자주식회사 | Projection diaplay |
| CN101520156A (en) * | 2008-02-26 | 2009-09-02 | 亚洲光学股份有限公司 | Light source module and projecting device |
| CN101655218A (en) * | 2008-08-22 | 2010-02-24 | 廖丰标 | High-efficiency three-wavelength light source module |
-
2010
- 2010-11-23 CN CN201010571199.5A patent/CN102478752B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050111692A (en) * | 2004-05-22 | 2005-11-28 | 삼성전자주식회사 | Projection diaplay |
| CN101520156A (en) * | 2008-02-26 | 2009-09-02 | 亚洲光学股份有限公司 | Light source module and projecting device |
| CN101655218A (en) * | 2008-08-22 | 2010-02-24 | 廖丰标 | High-efficiency three-wavelength light source module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713456A (en) * | 2012-10-09 | 2014-04-09 | 日立视听媒体股份有限公司 | Light source unit and projection display system using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478752B (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10197896B2 (en) | Laser light source with reduced beam combination operation for projection display | |
| CN102636946B (en) | Light source module and projection arrangement | |
| US10372028B2 (en) | Light source device and projection type display apparatus | |
| CN201886268U (en) | Laser light supply apparatus used for projection display | |
| JP2012141411A (en) | Light source device | |
| CN205787562U (en) | The light-emitting uniformity adjusting means of projection light source system and projector equipment | |
| CN106324964A (en) | Efficient laser projection system | |
| CN101652699A (en) | Color combiner for solid-state light sources | |
| EP3081986B1 (en) | Fly-eye lens and optical engine for projector including same | |
| EP3964876A1 (en) | Non-coaxial projection light source system | |
| US11223806B2 (en) | Light source system, method for improving light efficiency thereof, and display device | |
| WO2011011980A1 (en) | Illumination device for stage lighting with high light-combining efficiency | |
| CN116430662B (en) | Light source system and projection equipment | |
| CN109283784A (en) | Unstressed configuration colour wheel laser projection light-source system | |
| CN102156352B (en) | Beam shaping method and device thereof and laser display light source module and apparatus | |
| US10634981B2 (en) | Light source device and projection type display apparatus | |
| CN105207058A (en) | White laser module, laser display system and laser projection system | |
| WO2020248559A1 (en) | Ld laser light source module | |
| JP2024501613A (en) | Projection optical path and projection device | |
| CN104914658A (en) | Light source device and projection device | |
| CN106950785A (en) | A kind of light supply apparatus and lighting device | |
| US10409149B2 (en) | Phosphor wheel, light-emitting unit, and projector using same | |
| CN102478752B (en) | Light source module of projector | |
| US20230408894A1 (en) | Projection optical path and projection device | |
| CN102768459A (en) | Double-lamp illumination device and projection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |