CN101359160B - Illuminating system for projection apparatus and guidance device for cooling gas flow thereof - Google Patents
Illuminating system for projection apparatus and guidance device for cooling gas flow thereof Download PDFInfo
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- CN101359160B CN101359160B CN2007101413393A CN200710141339A CN101359160B CN 101359160 B CN101359160 B CN 101359160B CN 2007101413393 A CN2007101413393 A CN 2007101413393A CN 200710141339 A CN200710141339 A CN 200710141339A CN 101359160 B CN101359160 B CN 101359160B
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Abstract
The invention provides a lighting system used on a projection device; the lighting system comprises a cooling air flow guide device, a lamp and a cooling fan; the cooling air flow guide device comprises an air entry device and an adjustment device; and the adjustment device is provided with an air direction adjusting piece and an air direction guide piece. The cooling air flow generated by the cooling fan flows into the air direction adjusting piece of the adjustment device from the external part; and the air direction guide piece guides the cooling air flow in the air direction adjusting piece from an air direction adjusting hole towards a specific direction. As the adjustment device can be rotated relatively to the air entry device, the air direction adjusting hole is rotated from a first position aligned with an air inlet to a second position which forms a displacement with the air inlet, so that the cooling air flow can still cool the light bulb in the horizontal direction when the projection device is set up at different angles.
Description
Technical field
The relevant a kind of guidance device for cooling gas flow of the present invention is meant the guidance device for cooling gas flow that is used for cooling off the projection arrangement light fixture especially.
Background technology
Along with social diverse development, indispensable data presented device when projector had become people's meeting, amusement and study.For adapting to various demands and ground when using, often need set up projector with all places and angle.For example, the normal upside-down mounting of the projector in meeting room and classroom so can be save the trouble of moving on ceiling, can also increase the ground usage space.But because thermal current rising cause, the temperature on light fixture top can be higher than the temperature of bottom in the projector, in case the situation that bulb blows off just takes place excessive temperature differentials easily.For cooperating uses of just putting and putting upside down simultaneously, now projector adopt the side direction inlet air more design to cool off light fixture, reduce the temperature difference of top and the bottom whereby.
Yet, as shown in Figure 1, for being used environment, projector 1 often needs operate with non-level angle, for example, but if desire improves image position backward during mobile projector machine 1, heighten projection camera lens 11 sides of projector 1 slightly, image just can project with an elevation angle theta.At this moment, though cooling draught 10 enters the air intake vent invariant position of light fixture, but gas flow moves down, cooling draught more than 10 flows through from light fixture 13 bottoms, cause the long-pending heat on light fixture 13 tops even more serious, and cause that light fixture 13 performances are low even situations such as life-span impairment make the installation of projector be subjected to great restriction.
Owing to, make projection arrangement installing angle be subjected to pining down greatly for avoiding the excessive problems such as amassing heat easily that reaches of light fixture wick cooling upper and lower temperature difference; If desire to be used angle and install, except meeting reduces light fixture serviceable life, near the heat radiation of other elements also can influencing.Be head it off, the heat of light fixture can suitably be got rid of, just industry has proposed a kind of cooling structure 2 that changes the cooling draught flow direction and flow in order to cooling light fixture 20, the sectional view of this cooling structure 2 is shown in Fig. 2 A.
This cooling structure 2 has a fan 21, an air intake vent 23, a pair of wind channel 25 and a shifting board 27, the upper end of shifting board 27 is arranged at air intake vent 23 places by a pivot 271, make cooling draught that fan 21 produces when entering air intake vent 23, two side inflow wind channels 25 about further being divided into by shifting board 27.Wind channel 25 is arranged at two sides of lampshade 201 respectively, so that cooling draught flow to wick 203 along lampshade 201 inboards, the heat that wick 203 produces is taken out of.
Generally speaking, the light direction of light fixture 20 is vertical with projecting direction 22, and therefore when on the projection camera lens side direction of projection arrangement or when downward-sloping, shifting board 27 just can make the cooling gas flow of two sides differ because of gravity left and right sides deflection.For example, shown in Fig. 2 B, when the projection camera lens is inclined upwardly, the downside of shifting board 27 just can take over, what make left side air intake vent 23a goes into the go into air quantity of air quantity greater than right side air intake vent 23b, at this moment, also reaches up respectively towards bottom offset corresponding to the two wind channel positions of left side air intake vent 23a and right side air intake vent 23b, the cooling draught of big air quantity from the wind channel that moves flow in the light fixture 20, and the cooling draught of less air quantity flows in the light fixture 20 to cool off from the wind channel that moves down.Because the cause that thermal current rises, cool off with big air quantity light fixture 20 tops, makes cooling effect more remarkable.
In this structure; though the shifting board 27 by rotatable skew changes angle and adjusts cooling air quantity because of gravity; yet after projection arrangement is fixed in an angle and starts; the cooling airflow of fan 21 but can influence the static of shifting board 27; cause shifting board 27 not stop to rock, can't correctly control the cooling that projection arrangement rotates to light fixture 20 after the different angles.
In sum, because light fixture Cooling Design now is to the greatest extent imperfect, cause projection arrangement installing angle limited, the user can't be provided with projection arrangement with the best angle that is fit to use, and in other words, the user can not be arbitrarily with 360 degree installing projection arrangements.Even if use two designs that the air channel adds baffle plate cooling light fixture of going into, its baffle plate but is subject to airflow influence and swings, and can't accurately control cooling air quantity.
In view of this, providing a kind of guidance device for cooling gas flow that solves above-mentioned disappearance, and use the projection arrangement of this guidance device for cooling gas flow, is that industry institute looks forward to the target of reaching jointly for this reason.
Summary of the invention
A purpose of the present invention is to provide a kind of guidance device for cooling gas flow, is used for a projection arrangement.Guidance device for cooling gas flow comprises into a wind apparatus and an adjusting gear.Go into wind apparatus and have a body.Body defining goes out an inner plenum, and a side of body is provided with an air intake vent, is communicated with an outside and inner plenum, offers a pilot hole on vertical limit wall of body.Adjusting gear has a wind direction adjustment part and a wind direction guide member.Wind direction adjustment part self-assembly hole extends into inner plenum, and the wind direction adjustment part is provided with a wind direction and adjusts the hole.Wind direction guide member self-assembly hole stretches out, and with the air-flow in the wind direction adjustment part, derives towards a specific direction.Wherein, adjusting gear suitable can with go into wind apparatus and carry out a relative motion, make wind direction adjust Kong Shike from a primary importance of aliging with air intake vent move to and air intake vent between constitute the second place of a displacement.
Another purpose of the present invention is to provide a kind of illuminator that is used for a projection arrangement, comprises foregoing guidance device for cooling gas flow, a light fixture and a cooling fan.Light fixture has a wick and is located on a lampshade of wick, and a leading edge of lampshade is relative with the wind direction guide member.Cooling fan imports inner plenum with cooling draught from the air intake vent of body, and enters in the adjusting gear by the wind direction adjustment hole of wind direction adjustment part, and outwards derives from the wind direction guide member.
Because guidance device for cooling gas flow of the present invention is adjustable, so make the cooling draught that cooling fan is produced in the projection arrangement cool off light fixture with suitable direction, projection arrangement can be installed with various angles, the restriction on ground when not used.
Description of drawings
After consulting below in conjunction with the description of accompanying drawing after to better embodiment of the present invention, affiliated technical field has knows that usually the knowledgeable just can understand other purposes of the present invention, and technological means of the present invention and implement aspect, wherein:
Fig. 1 is the synoptic diagram of existing projection arrangement with elevation angle installing;
Fig. 2 A is the sectional view of an existing cooling structure;
Fig. 2 B is the cooling structure sectional view that the projection arrangement of the existing cooling structure of employing Fig. 2 A is installed with the elevation angle;
Fig. 3 is the illuminator side view of preferred embodiment of the present invention;
Fig. 4 A is the stereographic map of going into wind apparatus of preferred embodiment of the present invention;
Fig. 4 B is the side view of going into wind apparatus of preferred embodiment of the present invention;
Fig. 5 A is the adjusting gear of preferred embodiment of the present invention and the stereographic map of adjustment dish;
Fig. 5 B is the adjusting gear of preferred embodiment of the present invention and the side view of adjustment dish;
Fig. 6 A is the stereographic map of the catching device of preferred embodiment of the present invention;
Fig. 6 B is the side view of the catching device of preferred embodiment of the present invention;
Fig. 7 A is the cooling draught flow graph with the illuminator of angle installing preferred embodiment of the present invention;
Fig. 7 B is the cooling draught flow graph with the illuminator of another angle installing preferred embodiment of the present invention;
Fig. 7 C is the cooling draught flow graph with the illuminator of another angle installing preferred embodiment of the present invention; And
Fig. 7 D is the cooling draught flow graph with the illuminator of another angle installing preferred embodiment of the present invention.
Embodiment
A preferred embodiment of the present invention is a kind of illuminator 3 that is used for a projection arrangement, and its sectional view is as shown in Figure 3.This illuminator 3 comprises a light fixture 31, a cooling fan 33 and a guidance device for cooling gas flow 35.Light fixture 31 has a wick 311 and a lampshade 313; Guidance device for cooling gas flow 35 has into wind apparatus 351, an adjusting gear 353, an adjustment dish 355 and a catching device 357.Wherein, simultaneously with reference to Fig. 4 A and Fig. 4 B, go into wind apparatus 351 and have a body 3511, an air intake vent 3512, an inner plenum 3513, vertical limit wall 3514, a pilot hole 3515 and a transmission eyeglass 3516,353 of adjusting gears have a wind direction adjustment part 3531 and a wind direction guide member 3532.
As shown in Figure 3, the lampshade 313 of light fixture 31 is located on around the wick 311, and the surface, inside of lampshade 313 is coated with reflecting material, forms a reflecting surface, in order to the light of reflection and 311 ejaculations of guiding wick.Light penetrates out by the transmission eyeglass 3516 of going into wind apparatus 351 after passing the guidance device for cooling gas flow 35 that core is a hollow.Because wick 311 also produces heat when luminous, just need this moment dispel the heat by guidance device for cooling gas flow 35 guiding cooling draughts.The leading edge of lampshade 313 wind direction guide member 3532 proper and in the guidance device for cooling gas flow 35 is relative, therefore just can accept the cooling draught through guidance device for cooling gas flow 35 guidings.In this embodiment, this light fixture 31 is ellipsoid lamps, that is lampshade 313 inside are a semielliptical reflecting surface, and wick 311 right positions are in the center of this reflecting surface.
Each item that guidance device for cooling gas flow 35 is comprised: go into the sectional view of wind apparatus 351, adjusting gear 353 and adjustment dish 355, catching device 357 and stereographic map respectively shown in Fig. 4 A and Fig. 4 B, Fig. 5 A and Fig. 5 B and Fig. 6 A and Fig. 6 B.
Simultaneously with reference to Fig. 4 A and Fig. 4 B, go into wind apparatus 351 and have a body 3511, it is to be an annular, and body 3511 also has a central shaft 350, and it is one vertical that this central shaft 350 is perpendicular to.Body 3511 defines an inner plenum 3513, one side of body 3511 is provided with an air intake vent 3512, be communicated with an outside and inner plenum 3513, introduce in the inner plenum 3513 from outside in order to the cooling draught that cooling fan 33 is produced, in addition, also offer a pilot hole 3515 on one of body 3511 vertical limit wall 3514.
In Fig. 5 A and Fig. 5 B, adjusting gear 353 is a taper shape in fact, and it has a wind direction adjustment part 3531 and a wind direction guide member 3532, and adjusting gear 353 is fitted by wind direction adjustment part 3531 and partly is sticked in the pilot hole 3515 of wind apparatus 351.Wind direction adjustment part 3531 is provided with a wind direction and adjusts hole 3533, when wind direction adjustment part 3531 self-assembly holes 3515 extended into into the inner plenum 3513 of wind apparatus 351, a central shaft 350a of conical adjusting gear 353 overlapped with the central shaft 350 of body 3511 in fact.Wind direction guide member 3532 self-assembly holes 3515 stretch out, and are provided with a sector notch 3534.Cooling draught is adjusted hole 3533 from the inner plenum 3513 of going into wind apparatus 351 through wind direction and is flowed into adjusting gear 353, wind direction guide member 3532 suitable air-flow in the wind direction adjustment part 3531 by sector notch 3534, can the derivation outwardly with a specific direction.In other embodiment, the number of sector notch 3534 is not limit and it is provided with the position and does not also limit, and for example, fan-shaped opening 3534 can be opened in two opposite sides of wind direction guide member 3532, so that cooling draught is derived from two sides, air-flow is flowed toward wick 311 directions along the inside two side faces of lampshade 313.
Fig. 6 A and Fig. 6 B, catching device 357 are located on outside the wind direction guide member 3532, coil 355 adjacent with adjustment.Catching device 357 is to be an annular, it comprises the neck 3573 that two relative trays 3571 and connect two trays 3571, catching device 357 is to be located on outside the wind direction guide member 3532 by neck 3573, and neck 3573 is provided with a plurality of pod apertures 3575, makes that gas by sector notch 3534 is suitable can outwards derive from least one part of a plurality of pod apertures 3575 relative with sector notch 3534.
The air-flow of deriving is suitable can to flow into light fixture 31, and flows toward wick 311 directions along the inner side of lampshade 313, so that cooling draught can effectively cool off wick 311 and whole light fixture 31, is flowed out by other direction (for example opposite side of Liu Ruing) through cooled gas flow again.
In brief, cooling fan 33 imports inner plenum 3513 with the air intake vent 3512 of cooling draught on the body 3511 of going into wind apparatus 351, and the wind direction that passes through wind direction adjustment part 3531 is adjusted hole 3533, enter in the adjusting gear 353, change air-out direction through adjustment dish 355, export to bulb to cool off from wind direction guide member 3532 again.
With present embodiment, when projection arrangement 7 is horizontally disposed with (that is the angle of inclination is 0 °), wind direction adjustment hole 3533 is fitted and is alignd in fact with air intake vent 3512, shown in Fig. 7 A, this moment wind direction to adjust hole 3533 be to be positioned at a primary importance, cooling draught can lateral flow to wick 311; When the camera end of projection arrangement 7 is installed with 45 ° at the elevation angle, adjusting gear 353 suitable can with go into wind apparatus 351 and carry out relative motion, make wind direction adjust hole 3533 from primary importance rotatablely move to and 3512 second places that constitute an essence displacement of air intake vent, the angle that has 45 ° between the suitable and primary importance of this second place, that is shown in Fig. 7 B, cooling draught still can lateral flow to wick 311.
Shown in Fig. 7 C, if with the camera end of projection arrangement 7 during with vertical 90 ° of installings, adjusting gear 353 with go into wind apparatus 351 and carry out relative motion, make wind direction adjust hole 3533 from primary importance rotatablely move to and 3512 one the 3rd positions that constitute an essence displacement of air intake vent, the angle that has 90 ° between the suitable and primary importance in this 3rd position, cooling draught still can lateral flow to wick 311; Similarly, if with the camera end of projection arrangement 7 during with vertical 135 ° of installings, adjusting gear 353 with go into wind apparatus 351 and carry out relative motion, make wind direction adjust hole 3533 from primary importance rotatablely move to and 3512 one the 4th positions that constitute an essence displacement of air intake vent, the angle that has 135 ° between the suitable and primary importance in this 4th position, that is shown in Fig. 7 D, cooling draught still can lateral flow to wick 311.
In other embodiment, projection arrangement can also comprise a guiding fan, is adjacent to an air side of illuminator, attracts in order to will carry out cooled cooling draught.
Because the present invention can change the direction that cooling draught flows into lampshade by adjustment dish and adjusting gear, make that using projection arrangement of the present invention gets installation at any angle, and adapt to the inclination of projection arrangement fuselage and manually or automatic direct adjusting inlet air angle, therefore, cooling draught can cool off whole mechanism and the restriction that not flowed to by radiating airflow really, make the inner member can be to operate under the normal temperature, the parts of avoiding high temperature to cause are unusual, reaching best cooling draught direction adjustment, thus the serviceable life of improving element.
The above embodiments only are used for exemplifying enforcement aspect of the present invention, and explain technical characterictic of the present invention, are not to be used for limiting category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of the isotropism scope that all belongs to the present invention and advocated, the scope of the present invention should be as the criterion with the application's claim scope.
Claims (18)
1. guidance device for cooling gas flow is used for an illuminator of a projection arrangement, it is characterized in that comprising:
One goes into wind apparatus, has:
One body is an annular and has perpendicular to a central shaft longitudinally, and this body defining goes out an inner plenum, and a side of this body is provided with an air intake vent, is communicated with outside and this inner plenum, offers a pilot hole on vertical limit wall of this body;
One adjusting gear is a taper shape, and having a central shaft is to overlap with this central shaft of this body, and this adjusting gear comprises:
One wind direction adjustment part, this pilot hole extends into this inner plenum certainly, and this wind direction adjustment part is provided with wind direction adjustment Kong Shike this air-flow of going into wind apparatus is imported; And
One wind direction guide member, part is sticked in this pilot hole, and this pilot hole stretches out certainly, with the air-flow in this wind direction adjustment part, derives towards a specific direction;
Wherein, this adjusting gear is suitable can go into wind apparatus with this and carry out a relative motion so that this wind direction adjust Kong Shike from a primary importance of aliging with this air intake vent rotatablely move to and this air intake vent between constitute the second place of a displacement.
2. guidance device for cooling gas flow according to claim 1 is characterized in that this adjusting gear is suitable and can go into wind apparatus along this central shaft of this adjusting gear and this and carry out one and relatively rotate.
3. guidance device for cooling gas flow according to claim 2, it is characterized in that comprising in addition an adjustment dish, it is located on this adjusting gear so that this wind direction adjustment part and this wind direction guide member are separated out, and should the adjustment dish and vertical limit wall of this body in abutting connection with and drive this adjusting gear and go into wind apparatus with respect to this and rotate.
4. guidance device for cooling gas flow according to claim 3 is characterized in that this wind direction guide member is provided with a sector notch, and is suitable with the air-flow in this wind direction adjustment part, outwards derives by this sector notch.
5. guidance device for cooling gas flow according to claim 4 is characterized in that comprising a catching device in addition, is located on outside this wind direction guide member, with adjacent with this adjustment dish.
6. guidance device for cooling gas flow according to claim 5, it is characterized in that this catching device is an annular, it comprises the neck that two relative trays and connect this two tray, this catching device is to be located on outside this wind direction guide member by this neck, and this neck is provided with a plurality of pod apertures, and making by the gas of this sector notch is suitable outwards to derive from least one part of these a plurality of pod apertures.
7. guidance device for cooling gas flow according to claim 3 is characterized in that this adjustment dish is to drive this adjusting gear electrically or manually to go into the wind apparatus rotation with respect to this.
8. guidance device for cooling gas flow according to claim 3 is characterized in that an outer rim of this adjustment dish is provided with a reference mark, adjusts the hole turns to this second place from this primary importance degree to show this wind direction.
9. guidance device for cooling gas flow according to claim 8 is characterized in that this reference mark is a rotational angle.
10. illuminator that is used for a projection arrangement is characterized in that comprising:
One guidance device for cooling gas flow, it comprises:
One goes into wind apparatus, has:
One body is an annular and has a central shaft system vertical perpendicular to one, defines an inner plenum, and a side of this body is provided with an air intake vent, is communicated with outside and this inner plenum, offers a pilot hole on vertical limit wall of this body;
One adjusting gear, having a central shaft is to overlap with this central shaft of this body, this adjusting gear comprises:
One wind direction adjustment part, this pilot hole extends into this inner plenum certainly, and this wind direction adjustment part is provided with wind direction adjustment Kong Shike this air-flow of going into wind apparatus is imported; And
One wind direction guide member, part is sticked in this pilot hole, and this pilot hole stretches out certainly, with the air-flow in this wind direction adjustment part, derives towards a specific direction;
Wherein, this adjusting gear is suitable can go into wind apparatus with this and carry out a relative motion so that this wind direction adjust Kong Shike from a primary importance of aliging with this air intake vent rotatablely move to and this air intake vent between constitute the second place of a displacement;
One light fixture has a wick and is located on a lampshade of this wick, and a leading edge of this lampshade is relative with this wind direction guide member; And
One cooling fan imports this inner plenum with cooling draught from the air intake vent of this body, and adjusts the hole by the wind direction of this wind direction adjustment part, enter in this adjusting gear, and this wind direction guide member is outwards derived certainly.
11. illuminator according to claim 10 is characterized in that this adjusting gear is suitable and can go into wind apparatus along this central shaft of this adjusting gear and this and carry out one and relatively rotate.
12. illuminator according to claim 11, it is characterized in that comprising in addition an adjustment dish, it is located on this adjusting gear so that this wind direction adjustment part and this wind direction guide member are separated out, and should the adjustment dish and vertical limit wall of this body in abutting connection with and drive this adjusting gear and go into wind apparatus with respect to this and rotate.
13. illuminator according to claim 12 is characterized in that this wind direction guide member is provided with a sector notch, fits and outwards derives so that the air communication in this wind direction adjustment part is crossed this sector notch.
14. illuminator according to claim 13 is characterized in that comprising in addition a catching device, it is located on outside this wind direction guide member, with adjacent with this adjustment dish.
15. illuminator according to claim 14, it is characterized in that this catching device is an annular, it comprises the neck that two relative trays and connect this two tray, this catching device is located on outside this wind direction guide member by this neck, and this neck is provided with a plurality of pod apertures, and making by the gas of this sector notch is suitable outwards to derive from least one part of these a plurality of pod apertures.
16. illuminator according to claim 12 is characterized in that this adjustment dish is to drive this adjusting gear electrically or manually to go into the wind apparatus rotation with respect to this.
17. illuminator according to claim 12 is characterized in that an outer rim of this adjustment dish is provided with a reference mark, adjusts the hole turns to this second place from this primary importance degree to show this wind direction.
18. illuminator according to claim 17 is characterized in that this reference mark is a rotational angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101413393A CN101359160B (en) | 2007-08-01 | 2007-08-01 | Illuminating system for projection apparatus and guidance device for cooling gas flow thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101413393A CN101359160B (en) | 2007-08-01 | 2007-08-01 | Illuminating system for projection apparatus and guidance device for cooling gas flow thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101359160A CN101359160A (en) | 2009-02-04 |
| CN101359160B true CN101359160B (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101413393A Expired - Fee Related CN101359160B (en) | 2007-08-01 | 2007-08-01 | Illuminating system for projection apparatus and guidance device for cooling gas flow thereof |
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| Country | Link |
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| CN (1) | CN101359160B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109426053A (en) * | 2017-08-31 | 2019-03-05 | 中强光电股份有限公司 | Projector and light source module |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043315B (en) | 2009-10-23 | 2012-07-04 | 扬光绿能股份有限公司 | Guiding device and projector |
| JP2012048050A (en) * | 2010-08-27 | 2012-03-08 | Sanyo Electric Co Ltd | Projection type video display device |
| CN103591567A (en) * | 2013-10-15 | 2014-02-19 | 苏州佳世达光电有限公司 | Multimode light source cooling system, lighting module and projector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227686B1 (en) * | 1999-04-02 | 2001-05-08 | Mitsubishi Denki Kabushiki Kaisha | Light source apparatus |
| CN1379207A (en) * | 2001-04-11 | 2002-11-13 | 明碁电通股份有限公司 | Lamp with heat radiating effect |
| CN1645249A (en) * | 2004-01-23 | 2005-07-27 | 株式会社日立制作所 | Light source and projector having an image display element |
| EP1674926A1 (en) * | 2004-12-24 | 2006-06-28 | Sanyo Electric Co., Ltd. | Light source device and projection video display device having the same |
-
2007
- 2007-08-01 CN CN2007101413393A patent/CN101359160B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227686B1 (en) * | 1999-04-02 | 2001-05-08 | Mitsubishi Denki Kabushiki Kaisha | Light source apparatus |
| CN1379207A (en) * | 2001-04-11 | 2002-11-13 | 明碁电通股份有限公司 | Lamp with heat radiating effect |
| CN1645249A (en) * | 2004-01-23 | 2005-07-27 | 株式会社日立制作所 | Light source and projector having an image display element |
| EP1674926A1 (en) * | 2004-12-24 | 2006-06-28 | Sanyo Electric Co., Ltd. | Light source device and projection video display device having the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109426053A (en) * | 2017-08-31 | 2019-03-05 | 中强光电股份有限公司 | Projector and light source module |
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| Publication number | Publication date |
|---|---|
| CN101359160A (en) | 2009-02-04 |
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