CN101813878B - Projector and light source device - Google Patents
Projector and light source device Download PDFInfo
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- CN101813878B CN101813878B CN2009101054826A CN200910105482A CN101813878B CN 101813878 B CN101813878 B CN 101813878B CN 2009101054826 A CN2009101054826 A CN 2009101054826A CN 200910105482 A CN200910105482 A CN 200910105482A CN 101813878 B CN101813878 B CN 101813878B
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- light source
- projector
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- bottom bracket
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Abstract
The invention provides a light source device, which comprises a light source, an exhaust fan and a light source bottom support, wherein the light source bottom support is used for fixing the light source. An opening is arranged at the tail part of the light source at a position which right faces to the end of the light source bottom support. Vanes used for blocking light and exhausting air are arranged at the opening. The exhaust fan is arranged behind the light source bottom support and is used for exhausting hot air at the tail part of the light source out of a machine with the light source device. The invention additionally provides a projector. Since the design of the light source bottom support is adopted, the invention has the advantages that the entire projector is miniaturized, the component structure of the light source is simplified, the assembling is simplified, the cost is reduced and the reliability is high.
Description
Technical field
The present invention relates to projector, also relate to simultaneously the light supply apparatus of this projector.
Background technology
Can form image after the light source light that penetrates from the light source of projector inside is modulated, and make formed image projection arrive screen etc.In the light supply apparatus that consists of, the normal operation high-power lamp bulb is as the light source of projector, but high power lamp is steeped oneself-meeting and produced high temperature and high light.
The projector bulb also can see through Lamp cup and lampwick afterbody to external radiation high light and high heat in use except being radiated the efficient light by Lamp cup.In use these high lights must be blocked in the body, not by the external world directly not as seen, otherwise can damage human eye; Simultaneously, also heat in time to be discharged, otherwise can reduce bulb service life, worsen the environment for use of inner other parts.Usually just blocked the direct path of exhaust and be in the light, there is certain contradictory relation in both.Therefore, projector be in the light and exhaust structure is the problem that every money projector all must solve.
In order to solve the problem of high temperature that high-power lamp bulb produces and high light, prior art generally all is to adopt sheet metal blade 100 and engine bottom 200 to be combined in bulb 300 on every side to reach the function that is in the light with exhaust, as shown in Figure 1, 2.But the needed parts of this structure are more, and design and assembling also comparatively complicated, cost is higher, does not satisfy miniaturization, high-performance, lightweight, the market development needs of small projector cheaply far away.
Summary of the invention
The object of the present invention is to provide a kind of projector and light supply apparatus, realize being in the light and degassing function of bulb by using a light bulb base support, need a plurality of parts to solve being in the light and exhausting problem of light source in the prior art to solve.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of light supply apparatus, comprise light source and extraction fan, also comprise the light source bottom bracket for fixing described light source, the end that the afterbody of described light source faces described light source bottom bracket is provided with opening, and this opening part is provided be used to being in the light and the blade of exhaust; Described extraction fan is located at the back of described light source bottom bracket, is used for the afterbody hot gas discharge of described light source is possessed outside the machine of this light supply apparatus.
Among the present invention, described opening is separately positioned on rear side and the left side of described light source bottom bracket.
Among the present invention, described blade is arranged near the light source place.
Among the present invention, this blade is perpendicular to the light emission direction of described light source.
Among the present invention, described blade is more than one, parallel to each other and one-tenth scalariform setting between the blade
Among the present invention, the quantity of described blade is 4.
Among the present invention, described light source bottom bracket adopts the plastic parts of exotic material polyphenylene sulfide (PPS) moulding.
The present invention also discloses a kind of projector simultaneously, and described projector comprises optical system, supply unit and the light supply apparatus of the section of setting within it, and described light supply apparatus comprises light source and extraction fan, and described projector also comprises light supply apparatus described above.
Among the present invention, the housing of described projector is provided with louvre, by this louvre the hot gas of extraction fan is discharged outside the described projector.
Among the present invention, described light source bottom bracket is fixed by screws in the projector
By adopting technical solution of the present invention, compared with prior art, the present invention has following advantage: because the present invention has adopted the design of light source bottom bracket, so that projector complete machine miniaturization, the light source assembly structure is simplified, and assembling is simplified and cost, and reliability is high.
Description of drawings
Fig. 1 is the synoptic diagram of the light supply apparatus of prior art projector;
Fig. 2 is the synoptic diagram that Fig. 1 increases the light supply apparatus of fan;
Fig. 3 is the synoptic diagram of the preferred embodiment of light supply apparatus of the present invention;
Fig. 4 is the synoptic diagram of the light source bottom bracket of Fig. 3;
Fig. 5 is the synoptic diagram of projector of the present invention;
Fig. 6 is the synoptic diagram of discharge directions of the present invention;
Fig. 7 is the synoptic diagram of 4 blades in the preferred embodiment of the present invention;
Fig. 8 is the synoptic diagram of supply unit of the present invention;
Fig. 9 is the synoptic diagram of louvre of the present invention;
Figure 10 is the synoptic diagram that light source and extraction fan adopt vertical mode;
Figure 11 is the synoptic diagram that light source and extraction fan adopt the off plumb mode;
Figure 12 increases extraction fan and blade angle and the synoptic diagram that increases ventilation;
Figure 13 adopts the lamp source near the synoptic diagram that is in the light of light source;
Figure 14 adopts the lamp source from the synoptic diagram that is in the light of light source far point;
Figure 15 is the synoptic diagram that adopts the light emission perpendicular direction of be in the light blade and light source;
Figure 16 is the synoptic diagram that adopts be in the light blade and light source angle at 45 °;
Figure 17 is the optical system synoptic diagram in the liquid crystal projection apparatus of the present invention;
Figure 18 is the oblique view of light source bottom bracket of seeing the preferred embodiment of light supply apparatus of the present invention from bottom direction;
Figure 19 is the oblique view of light source bottom bracket of seeing the preferred embodiment of light supply apparatus of the present invention from LAMP afterbody upper side;
Figure 20 is the oblique view of light source bottom bracket of seeing the preferred embodiment of light supply apparatus of the present invention from LAMP above-head side.
Embodiment
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Such as Fig. 3, Fig. 4 and shown in Figure 5, a kind of light supply apparatus of the present invention comprises light source 1, extraction fan 2 and the light source bottom bracket 3 that is used for fixing described light source 1.
Wherein, light source 1 can be fixed in the light source bottom bracket 3 by screw (not shown temporarily among the figure).The end that the afterbody 4 of light source 1 faces light source bottom bracket 3 is provided with opening 5, and these opening 5 places are provided be used to being in the light and the blade 6 of exhaust; Extraction fan 2 is located at the back of light source bottom bracket 3, is used for the afterbody hot gas of light source 1 is discharged outside the projector 7.Light source bottom bracket 3 can be fixed in the shell 7a below the projector 7 by screw 8.
What Figure 10 showed is that light source 1 adopts vertical mode with extraction fan 2, and the preferred embodiment of the present invention adopts light source 1 and extraction fan 2 off plumb modes (as shown in figure 11), and namely extraction fan 2 is arranged on the back of light source bottom bracket 3.Can increase largely like this angle of extraction fan 2 and blade, increase draught area (as shown in figure 12), ventilation from left to right is respectively, and is minimum, moderate, maximum.The present invention guarantees effective discharging of light source 1 afterbody hot gas by opening 5 air-out, and its discharge directions is shown in the arrow among Fig. 6.
As a preferred embodiment of the present invention, opening 5 can design according to the integral arrangement of projector, for example, such as Fig. 3-shown in Figure 7, the opening 5 of light source bottom bracket 3 can be separately positioned on the rear side of light source bottom bracket 3 and left side and (face the direction that light that bulb 1a sends advances along optical axis L from the afterbody of bulb 1a, its left side is the left side of saying here), because the left side of light source bottom bracket 3 also has power supply 9 exhausts (supply unit as shown in Figure 8), the temperature of power supply 9 exhausts is lower than the temperature of bulb exhaust, with power supply exhaust and bulb exhaust neutralization, can reduce the temperature of whole exhaust, so the opening 5 of bottom bracket 3 is separately positioned on back and the left side of light source bottom bracket 3, and the rear side of light source bottom bracket 3 faces toward the louvre 10 (as shown in Figure 9) of housing, and easy to exhaust fan 2 is discharged hot gas outside the projector 7 from the radiating block of housing.
As a preferred embodiment of the present invention, blade 3 is preferably disposed near illuminator 1a place, and needed like this blade is just less, and the effect that is in the light is better.Figure 13 and Figure 14 are the synoptic diagram that expression blade 3 is arranged on the diverse location of light source.Relatively these two figure just can know, blade 3 is just less at the blade that needs of realizing being in the light the closer to the place of light source 1, and the effect that is in the light is just better.
As a preferred embodiment of the present invention, blade 6 is perpendicular to the light emission direction of light source 1, and it is reflective to reduce blade 3.Figure 15 is the synoptic diagram that expression blade 3 arranges with different angles with Figure 16.Relatively these two figure just can know, when the optical axis L of the light that sends when face and the bulb 1a edge at blade 3 places becomes θ ° of (θ is less than 90) angle, and 45° angle for example, most of light can be by reflecting behind the secondary reflection again, and the effect that is in the light is not good enough.And when the face at blade 3 places and bulb 1a along the optical axis L of the light that sends at an angle of 90 the time, most light can both be reflected back, and has reduced the again secondary reflection of high light on blade 3, the effect that is in the light is better.
The quantity of described blade 3 can be one or more, if more than one, and parallel to each other and one-tenth scalariform setting between the blade.As a preferred embodiment of the present invention, the quantity of blade 3 of the present invention is 4, forms altogether 3 exhaust ports (seeing shown in Fig. 7 arrow).Because the quantity of blade 3 very little, the effect that is in the light is not too obvious, and the ultraviolet ray that spills damages human eye easily; If the quantity of blade 3 is too many, can block again the hot gas that light source 1 afterbody is drained outward, be unfavorable for light source 1 cooling.Therefore the present invention is according to the size of actual projector, and rationally the quantity with blade 3 is designed to 4, can effectively be in the light and exhaust.
As a preferred embodiment of the present invention, light source bottom bracket 3 of the present invention adopts the plastic parts of exotic material diphenyl sulfide resin (PPS) moulding.If adopt sheet metal member to realize being in the light degassing function because panel beating is the metal plate material, need during moulding to cut off, textural be difficult to realize overlapping, unfavorable to being in the light, and the present invention adopts working of plastics can realize excessive effects, favourable to being in the light.And panel beating is reflective strong, even after doing the processing of blackout, strong reflecting effect is still arranged, reflect easily forceful rays, reduce the effect that is in the light, the panel beating cost of processing through surface blackening simultaneously is higher, and the sheet-metal formed product are complicated and changeable not as plastics, and the structure of not realizing generally also need to be finished by another working of plastics.Therefore, the present invention adopts the plastic parts of exotic material PPS moulding can reduce number of components, thereby reduces cost.
Below be the present invention about an embodiment of optical system in the liquid crystal projection apparatus, and 17 describe by reference to the accompanying drawings.The optical system 13 here is not limited to example shown in Figure 17, and the present invention is applicable to be provided with the mechanism of various optical systems.
Among Figure 17, from white light process collector lens 20, the 1st integration lens 21, the 2nd integration lens 22 of illuminator 19, polarising beam splitter (PBS) 23 and collector lens 24 etc. are to 25 irradiations of the 1st dichronic mirror.
Above-mentioned the 1st integration lens 21 and the 2nd integration lens 22 are made of the rope eyelens that the rectangular arrangement of a plurality of lens units forms respectively, have the function of the Illumination Distribution homogenization that makes the white light that illuminator 19 sends.
In addition, polarising beam splitter (PBS) 23 possesses polarized light separation membrane and phasic difference plate (1/2 wave plate).Polarized light separation membrane makes from for example P polarized light in the light of the 2nd integration lens 22 and sees through, and makes a little after changing outgoing of S polarized light light path.The P polarized light that sees through polarized light separation membrane is transformed into outgoing behind the S polarized light by the phasic difference plate that is located at its front side (light exit side).That is, nearly all light all unanimously becomes the S polarized light.
Light by above-mentioned polarising beam splitter 23 arrives the 1st dichronic mirror 25 through collector lens 24.The 1st dichronic mirror 25 only has the blue component reflection of light and the function that redness and green component are passed through, and the redness of passing through and the light of green component arrive the 2nd dichronic mirror 26.The 2nd dichronic mirror 26 has the green component reflection of light and the function that red component is passed through.Thereby the white light that illuminator 19 sends is divided into blue light, green glow and ruddiness by the 1st and the 2nd dichronic mirror 25,26.
The blue light of the 1st dichronic mirror 25 reflections is reflected by completely reflecting mirror 27, the green glow of the 2nd dichronic mirror 26 reflections is kept intact, ruddiness by the 2nd dichronic mirror 26 is reflected by completely reflecting mirror 29,31 via relay lens 28,30, then imports respectively image and generates optical system 32.
Image generates in the optical system 32, in three sides of the look synthetic prisms 33 of cubic shaped, respectively dismantledly configuration be provided with red with liquid crystal panel 34r, green glow with liquid crystal panel 34g and the blue light prism installing component 35 with liquid crystal panel 34b etc.Dispose outgoing lateral deviation tabula rasa 36r between the liquid crystal panel 34r at look synthetic prisms 33 and red using, configuration outgoing lateral deviation tabula rasa 36g and preposition Polarizer 37g between the liquid crystal panel 34g at look synthetic prisms 33 and green glow, configuration outgoing lateral deviation tabula rasa 36b and preposition Polarizer 37b between the liquid crystal panel 36b at look synthetic prisms 33 and blue light.In addition, the light incident side at three liquid crystal panel 34r, 34g, 34b disposes respectively light incident side Polarizer 38r, 38g, 38b and collector lens 39r, 39g, 39b.
Thereby, be imported into the collector lens 39b that blue light is used by the blue light of the 1st dichronic mirror 25 and completely reflecting mirror 27 reflections, with liquid crystal panel 34b and preposition Polarizer 37b, exiting side Polarizer 36b, arrive look synthetic prisms 33 via light incident side Polarizer 38b, blue light.In addition, the green glow that is reflected by the 2nd dichronic mirror 26 is imported into the collector lens 39g that green glow is used, and with liquid crystal panel 34g and preposition Polarizer 37g, exiting side Polarizer 36g, arrives look synthetic prisms 33 via light incident side Polarizer 38g, green glow.Equally, see through the 1st dichronic mirror 25 and the 2nd dichronic mirror 26, and be imported into ruddiness collector lens 39r through the ruddiness of 2 completely reflecting mirrors 29,31 reflections, via light incident side Polarizer 38r, ruddiness with liquid crystal panel 34r and exiting side Polarizer 36r, arrival look synthetic prisms 33.
The 3 color image light that are imported into look synthetic prisms 33 are synthetic by this look synthetic prisms 33, thus obtained coloured image light via projection lens 4 enlarging projections to the screen in the place ahead.
In above embodiment, listed example projector all is with the liquid crystal projection apparatus of liquid crystal display as light conversion element, but other projector that has possessed by the photogenerated picture system all is suitable for the present invention, the projector produced of DLP (Digital Light Processing, be called for short DLP) company for example.
Figure 18, Figure 19 and Figure 20 are the synoptic diagram of the preferred embodiment of the bottom light source support that uses of the present invention, as shown in the figure.The embodiment shown in Figure 4 from the front is different, and the blade 502 in the blade 501,502,503 that arranges on the bottom light source support 500 of this embodiment and 503 bottom surfaces with respect to support are the wide cut shape and prolong to parallel direction.The part of the left frame of the prolongation end 502A of blade 502 and support rear section 504 is overlapping at the optical axis direction place.Therefore the lower part that prolongs end 502A is incision-like, can avoids the light of LAMP from opening 505 light leaks by the blade 501 of LAMP rear side.The prolongation end 503A of the blade 503 that prolongs from the frame part 506 of support rear central authorities extends to the right wall section 510 of bottom bracket 500 always, simultaneously since upper part be weak, so be provided with lack part 507.Shading wall section 509 leaks for fear of the light of above-mentioned lack part 507 to be mapped to the rear and to arrange, for relative with lack part 507 and will couple together between above-mentioned central frame section 506 and the right frame in the support rear section 508.This embodiment be by blade 501,502,503 and shading wall section 509 realize shadings.
The hot gas of LAMP is discharged according to the flow direction shown in the arrow by slit and lack part 507 between the left frame of blade 502 and the support rear section 504 from the rear afterbody in addition.In addition, this embodiment also is provided with wide blade (wide blade is 502 and 503 combination), so shaded effect is fine.
In sum, because the present invention has adopted the design of light source bottom bracket, so that the miniaturization of projector complete machine, the light source assembly structure is simplified, and assembling is simplified and cost, and reliability is high.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (7)
1. projector light source apparatus, comprise light source and extraction fan, it is characterized in that, also comprise the light source bottom bracket for fixing described light source, described light source bottom bracket is provided with opening near light source afterbody one end, and this opening part is provided be used to being in the light and the blade of exhaust; Described opening is separately positioned on rear side and the left side of described light source bottom bracket; Described blade is arranged near the light source place, and described blade is a plurality of, parallel to each other and one-tenth scalariform setting between the blade; Described extraction fan is located at the back of described light source bottom bracket, is used for the afterbody hot gas discharge of described light source is possessed outside the machine of this light supply apparatus.
2. projector light source apparatus according to claim 1 is characterized in that, this blade is perpendicular to the light emission direction of described light source.
3. projector light source apparatus according to claim 1 is characterized in that, the quantity of described blade is 4.
4. projector light source apparatus according to claim 1 is characterized in that, described light source bottom bracket adopts the plastic parts of exotic material polyphenylene sulfide PPS moulding.
5. projector, described projector comprises optical system, the supply unit of the section of setting within it, and it is characterized in that, described projector also comprises each described light supply apparatus of claim 1-4.
6. projector according to claim 5 is characterized in that, the housing of described projector is provided with louvre, by this louvre the hot gas of extraction fan is discharged outside the described projector.
7. projector according to claim 5 is characterized in that, described light source bottom bracket is fixed by screws in the projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101054826A CN101813878B (en) | 2009-02-20 | 2009-02-20 | Projector and light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101054826A CN101813878B (en) | 2009-02-20 | 2009-02-20 | Projector and light source device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101813878A CN101813878A (en) | 2010-08-25 |
| CN101813878B true CN101813878B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101054826A Active CN101813878B (en) | 2009-02-20 | 2009-02-20 | Projector and light source device |
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Citations (8)
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| JP2002236318A (en) * | 2001-02-09 | 2002-08-23 | Sharp Corp | Structure of light shielding slit part of projection type image display device, and controller of light shielding slit part |
| JP2003157714A (en) * | 2001-11-19 | 2003-05-30 | Sanyo Electric Co Ltd | Light source device |
| TW200510908A (en) * | 2003-09-05 | 2005-03-16 | Delta Electronics Inc | Fan structure and heat dissipation device for projector incorporating the same |
| TW200640347A (en) * | 2005-05-05 | 2006-11-16 | Asia Vital Components Co Ltd | System heat-dissipating device capable of preventing light leakage |
| CN1904716A (en) * | 2005-07-29 | 2007-01-31 | 三洋电机株式会社 | Projector device |
| CN101067713A (en) * | 2006-05-02 | 2007-11-07 | 三洋电机株式会社 | Projecting device |
| CN101165589A (en) * | 2006-10-19 | 2008-04-23 | 三洋电机株式会社 | Light source lamp cooling mechanism and projection type image displaying device employing the same |
| CN101281350A (en) * | 2007-04-05 | 2008-10-08 | 深圳华强三洋技术设计有限公司 | Light source lamp cooling mechanism and projection type image display apparatus using the same |
-
2009
- 2009-02-20 CN CN2009101054826A patent/CN101813878B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002236318A (en) * | 2001-02-09 | 2002-08-23 | Sharp Corp | Structure of light shielding slit part of projection type image display device, and controller of light shielding slit part |
| JP2003157714A (en) * | 2001-11-19 | 2003-05-30 | Sanyo Electric Co Ltd | Light source device |
| TW200510908A (en) * | 2003-09-05 | 2005-03-16 | Delta Electronics Inc | Fan structure and heat dissipation device for projector incorporating the same |
| TW200640347A (en) * | 2005-05-05 | 2006-11-16 | Asia Vital Components Co Ltd | System heat-dissipating device capable of preventing light leakage |
| CN1904716A (en) * | 2005-07-29 | 2007-01-31 | 三洋电机株式会社 | Projector device |
| CN101067713A (en) * | 2006-05-02 | 2007-11-07 | 三洋电机株式会社 | Projecting device |
| CN101165589A (en) * | 2006-10-19 | 2008-04-23 | 三洋电机株式会社 | Light source lamp cooling mechanism and projection type image displaying device employing the same |
| CN101281350A (en) * | 2007-04-05 | 2008-10-08 | 深圳华强三洋技术设计有限公司 | Light source lamp cooling mechanism and projection type image display apparatus using the same |
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| Publication number | Publication date |
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| CN101813878A (en) | 2010-08-25 |
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