CN100403089C - Beam splitter - Google Patents
Beam splitter Download PDFInfo
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- CN100403089C CN100403089C CNB2005100752146A CN200510075214A CN100403089C CN 100403089 C CN100403089 C CN 100403089C CN B2005100752146 A CNB2005100752146 A CN B2005100752146A CN 200510075214 A CN200510075214 A CN 200510075214A CN 100403089 C CN100403089 C CN 100403089C
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- gear
- light
- dividing device
- filter element
- motor
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Abstract
The present invention relates to a light dividing device which comprises a power component, a driving component and a filtering component, wherein the power component is provided with a rotary device and a first connecting part, and the rotary device is connected with the first connecting part; the driving component is provided with a second connecting part and a third connecting part, the second connecting part is connected with the first connecting part; the filtering component is provided with a filter element and a fourth connecting part, the fourth connecting part is arranged at one side of the filter element and is connected with the third connecting part; when the rotary device and the first connecting part rotate, the second connecting part and the third connecting part are driven to rotate, and the fourth connecting part and the filter element are driven to rotate by the third connecting part. The light dividing device of the present invention can reduce a motor, when one of the filter element and the motor in the light dividing device is damaged, the filter element and the motor don't need to be scrapped, one of the filter element and the motor is replaced, the aim of low cost can be achieved.
Description
Technical field
The present invention relates to a kind of light-dividing device, especially relate to a kind of light-dividing device of optical projection system.
Background technology
Because under the multiple demand of big display area, miniaturization and lightweight system, image projecting system becomes one of subitem the most popular in the present opto-electronics.
Please consult shown in Figure 1 earlier, in optical projection system 1, behind light process prism 12 optically focused of light source 11 emissions, pass the light-dividing device 13 of filter element 131 with redgreenblue, and by photoconductive tube (Light Pipe) 14, then, (DigitalMicro-mirror Device is DMD) on 16, then to utilize catoptron 15 that light is reflexed to numerical digit micro mirror wafer, light is projected to projecting lens 17, imaging on screen 18 at last again via reflection.Generally speaking, the light source 11 in the optical projection system 1 can produce high temperature, and the temperature that light source 11 is produced then is about 150 ℃ to 200 ℃, so optical projection system 1 all can dispose the usefulness of a fan 19 as cooling near light source 11.Wherein, fan 19 drives a plurality of flabellums 191 by a motor 192 and rotates, and produces air-flow to reach the effect of cooling.
Please also refer to Fig. 1 and Fig. 2, light-dividing device 13 mainly comprises a filter element 131 and a motor 132.Wherein, motor 132 has axle center lid 1321 and one motor body 1322, and axle center lid 1321 is arranged at a side of an axis direction of motor body 1322.In addition, light-dividing device 13 more can comprise positioning piece 1323, and a winding displacement (figure does not show).This keeper 1323 is fixed in light-dividing device 13 in the optical projection system 1, and winding displacement system is connected with a driver, this driver is in order to CD-ROM drive motor body 1322, and a bit (rotating shaft core) of establishing with keeper 1323 and 1322 of motor bodies is that rotate at the center.Wherein, motor body 1322 main being formed by a magnet circle, a siliconized plate and a coil.When coil electricity, siliconized plate produces magnetic force and magnetic field, and allows magnetic field that orderly variation takes place by positive and negative and the intensity of electrical current, also is a rotating magnetic field, makes magnet circle and rotating magnetic field effect and then formation rotation.Filter element 131 its utilize one to stick together on the axle center lid 1321 that glue is fixed on motor 132, by drive filter element 131 rotations of motor 132, in order to carry out beam split.The glass plate by several pieces different colours of the employed filter element 131 of industrial community combines at present, and filter element 131 covers on 1321 so that be arranged at the axle center of motor 132 for annular.
As mentioned above, the filter element 131 of at present known light-dividing device 13 must rotate in order to carry out beam split it by the motor in the light-dividing device 13 132, but motor 132 is expensive spare part, can produce high temperature and run up down in light source 11 irradiations in motor 132,132 lubricating oil is evaporated easily on the motor, causes motor to shorten for 132 serviceable lifes.In addition, because filter element 131 is by sticking together on the axle center lid 1321 that glue is fixed on motor 132, therefore when motor 132 or filter element 131 wherein one when damaging, must put in order to organize and scrap, can't reclaim another good element and reuse, thereby improve production cost.
Therefore how to provide a kind of light-dividing device, can reduce by a motor reducing the production cost of optical projection system integral body, and can solve filter element and motor one of them when damaging, must put in order and organize the shortcoming of scrapping, be the problem of thinking deeply for industry urgent need now.
This shows that above-mentioned existing light-dividing device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that light-dividing device exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing light-dividing device exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of light-dividing device of new structure, can improve general existing light-dividing device, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing light-dividing device exists, and provide a kind of light-dividing device of new structure, technical matters to be solved is to make it can reduce by a motor, and when the filter element in the light-dividing device and one of them damage of motor, do not need both to scrap simultaneously, only need to change one of them and get final product, promptly reaching the purpose that reduces cost, thereby be suitable for practicality more.
Purpose of the present invention and to solve its technical matters be to adopt following technical scheme to realize.A kind of light-dividing device according to the present invention proposes is characterized in that it comprises: a Power Component, and it has a rot and one first gear, and this rot and this first gear are connected; One transmission component, it has one second gear and one the 3rd gear, and this second gear is connected with this first gear; An and filtering assembly, it has a filter element and one the 4th gear, the 4th gear is arranged at a side of this filter element and is connected with the 3rd gear, when wherein this rot and this first gear rotate, drive this second gear and the 3rd gear and rotate, and the 3rd gear driven the 4th gear and the rotation of this filter element.
Purpose of the present invention and solve its technical matters and can also be further achieved by the following technical measures.
Aforesaid light-dividing device, wherein said rot are a fan or an air blown producer.
Aforesaid light-dividing device, wherein said rot comprise a motor and one first turning axle, and this first turning axle is connected with this motor and this first gear respectively.
Aforesaid light-dividing device, wherein said transmission component have more one second turning axle, and this second turning axle is connected with this second gear and the 3rd gear respectively.
Aforesaid light-dividing device, it more comprises positioning piece, and this second turning axle is located on this keeper.
Aforesaid light-dividing device, wherein said filtering assembly have more one the 3rd turning axle, and the 4th gear is located on this keeper by the 3rd turning axle.
Aforesaid light-dividing device, wherein said first gear and this second gear are respectively a crowngear, and the number of teeth of this first gear is more than the number of teeth of this second gear.
Aforesaid light-dividing device, wherein said first gear and this second gear are respectively a spiral shell generating gear, and the number of teeth of this first gear is more than the number of teeth of this second gear.
Aforesaid light-dividing device, wherein the number of teeth of the 3rd gear is more than the number of teeth of the 4th gear.
Aforesaid light-dividing device, wherein said filter element has the optical filter of at least two kinds of colors.
By technique scheme, light-dividing device of the present invention has following advantage at least:
1, by the cooperation of Power Component and transmission component, can make rot and filter element rotate simultaneously, can save the motor in the light-dividing device of known techniques, reduce cost and solve the advantage that known motor life is lacked so can have.
When 2, light-dividing device rotates, also drive rot simultaneously and rotate, and then produce air-flow, so have the advantage that reduces the optical projection system temperature.
3, when filter element and one of them damage of motor, do not need both to scrap simultaneously, only need to change one of them and get final product, have the advantage that reduces cost.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Figure 1 shows that the synoptic diagram of known optical projection system.
Figure 2 shows that the synoptic diagram of known light-dividing device.
Figure 3 shows that the synoptic diagram of the light-dividing device of a preferred embodiment of the present invention.
Figure 4 shows that the light-dividing device of a preferred embodiment of the present invention is arranged at the synoptic diagram of optical projection system.
Figure 5 shows that the light-dividing device of another preferred embodiment of the present invention is arranged at the synoptic diagram of an optical projection system.
Figure 6 shows that the present invention's synoptic diagram of the light-dividing device of a preferred embodiment again.
1,1 ': optical projection system 11: light source
12: prism 13: light-dividing device
131: filter element 14: photoconductive tube
15: catoptron 16: numerical digit micro mirror wafer
17: projecting lens 18: screen
2,3: light-dividing device 21,31: Power Component
211,311: rot 2111,3111: motor
Turning axle 2113,3113 in 2112: the first: flabellum
232: the three gears of 231: the second gears
Turning axle 25,33 in 233: the second: filtering assembly
251,331: 252: the four gears of filter element
Turning axle 27,35 in 253: the three: keeper
3112: turning axle 312: gear
332: another gear 333: another turning axle
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of light-dividing device, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also shown in Figure 3ly,, comprise a Power Component 21, a transmission component 23, a filtering assembly 25 and positioning piece 27 according to the light-dividing device 2 of preferred embodiment of the present invention.
In this preferred embodiment, Power Component 21 has a rot 211 and one first gear 212.Wherein, rot 211 is a fan or an air blown producer (selecting for use fan to be illustrated at this), and first gear 212 can be a crowngear (Bevel gear), a cross helical gear (Spiral bevel gear) or other are familiar with the known gear of this operator.At this, rot 211 mainly comprises a motor 2111, one first turning axle 2112 and a plurality of flabellum 2113, motor 2111 can drive a plurality of flabellums 2113 and rotate to produce air-flow, and then reach the effect of cooling, the motor 2111 and first gear 212 are connected by first turning axle 2112 in addition, can drive a plurality of flabellums 2113 and first gear 212 rotates when the motor 2111 of Power Component 21 rotates.
In this preferred embodiment, second gear 231 also can be a crowngear, a cross helical gear or other are familiar with the known gear of this operator.Palpus attention person, second gear 231 must match with first gear 212, for convenience of description, all select for use crowngear that it is described at this first gear 212 and second gear 231, first gear 212 engages with engagement system between the two with second gear 231, and the number of teeth of first gear 212 is more than the number of teeth of second gear 231.Certainly, both gear ratios can be according to the selected gear ratio of user's demand, and the number of teeth of first gear 212 also can be equal to or less than the number of teeth of second gear 231.For convenience of description, the number of teeth of supposing first gear 212 is two times of the number of teeth of second gear 231, therefore rotates a circle when first gear 212, will drive second gear 231 and rotate two and enclose, to reach the effect of speed change.
As above-mentioned, the light-dividing device 2 of preferred embodiment of the present invention, when the motor 2111 of rot 211 and first gear 212 rotate with first turning axle 2112, because first gear 212 engages with second gear 231, therefore first gear, 212 drive second gears 231 and the 3rd gear 232 rotate with second turning axle 233, then, rotate with filter element 251, can reach the effect of beam split in order to do making the 3rd gear 232 drive the 4th gear 252 because the 3rd gear 232 engages with the 4th gear 252.And because in this preferred embodiment, the number of teeth of first gear 212 is two times of the number of teeth of second gear 231, and the number of teeth of the 3rd gear 232 is two times of the number of teeth of the 4th gear 252, so when the motor 2111 of rot 211 when rotating than the slow-speed of revolution, filter element 251 also can reach predetermined high speed rotating speed, therefore the motor 2111 of Power Component 21 can be used as the power source of light-dividing device 2, and the power of motor 211 is sent to filter element 251 by transmission component 23, it is rotated to reach the effect of beam split, and avoid motor 2111 high-speed rotation and produce high temperature, and then cause the lubricating oil evaporation of motor 2111.
In addition, compare with known techniques, the filter element 251 of light-dividing device of the present invention does not directly stick together on the motor 2111, therefore when filter element 2111 and motor 2111 one of them damage, does not need both to scrap simultaneously, only needs to change one of them and gets final product.See also shown in Figure 4, for the easier quilt of the light-dividing device that makes preferred embodiment of the present invention is understood, below be implemented on the operating principle of optical projection system 1 ' at the light-dividing device of preferred embodiment of the present invention, be illustrated, wherein with Fig. 3 in components identical give the components identical symbol and be illustrated.
The operating principle of this optical projection system 1 ', as described below: at first, behind light process prism 12 optically focused of light source 11 emissions, pass light-dividing device 2 with filter element 251, and by photoconductive tube (LightPipe) 14, then, (DigitalMicro-mirror Device is DMD) on 16, then to utilize catoptron 15 that light is reflexed to numerical digit micro mirror wafer, light is projected to projecting lens 17, imaging on screen 18 at last again via reflection.Because the light source 11 in the optical projection system 1 ' can produce high temperature, so the rot 211 of the light-dividing device 2 of preferred embodiment of the present invention is configurable near light source 11.When rot 211 drove filter element 251 rotations, a plurality of flabellums 2113 rotated simultaneously, can produce air flow to reach the effect of heat radiation.In addition, the light-dividing device 2 of preferred embodiment of the present invention need not be arranged at according to the configuration mode among Fig. 4 in the optical projection system, also can be arranged in the optical projection system 1 ' by configuration mode as shown in Figure 5.
See also shown in Figure 6ly,, comprise a Power Component 31, a filtering assembly 33 and positioning piece 35 according to the present invention's light-dividing device 3 of a preferred embodiment again.Wherein, Power Component 31 has a rot 311 and a gear 312, and in this preferred embodiment, rot 311 is a fan or air blown producer (selecting fan for use in order to explanation at this), and gear 312 is a gear.In addition, rot 311 has a motor 3111, a turning axle 3112 and a plurality of flabellum 3113, and rot 311 is connected by turning axle 3112 with gear 312, and turning axle 3112 is located on the keeper 35, is fixed.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art are not in breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1. light-dividing device is characterized in that it comprises:
One Power Component, it has a rot and one first gear, and this rot and this first gear are connected;
One transmission component, it has one second gear and one the 3rd gear, and this second gear is connected with this first gear; And
One filtering assembly, it has a filter element and one the 4th gear, the 4th gear is arranged at a side of this filter element and is connected with the 3rd gear, when wherein this rot and this first gear rotate, drive this second gear and the 3rd gear and rotate, and the 3rd gear driven the 4th gear and the rotation of this filter element.
2. light-dividing device according to claim 1 is characterized in that wherein said rot is a fan or an air blown producer.
3. light-dividing device according to claim 1 is characterized in that wherein said rot comprises a motor and one first turning axle, and this first turning axle is connected with this motor and this first gear respectively.
4. light-dividing device according to claim 1 is characterized in that wherein said transmission component has more one second turning axle, and this second turning axle is connected with this second gear and the 3rd gear respectively.
5. light-dividing device according to claim 4 is characterized in that it more comprises positioning piece, and an end of this second turning axle is prolonging an axle center of this keeper and is being arranged on this keeper.
6. light-dividing device according to claim 5, it is characterized in that wherein said filtering assembly has more one the 3rd turning axle, one end of the 3rd turning axle is arranged on the 4th gear, and the other end of the 3rd turning axle is prolonging another axle center of this keeper and is arranged on this keeper.
7. light-dividing device according to claim 1 it is characterized in that wherein said first gear and this second gear are respectively a crowngear, and the number of teeth of this first gear is more than the number of teeth of this second gear.
8. light-dividing device according to claim 1 it is characterized in that wherein said first gear and this second gear are respectively a spiral shell generating gear, and the number of teeth of this first gear is more than the number of teeth of this second gear.
9. light-dividing device according to claim 1 is characterized in that the number of teeth of the number of teeth of the 3rd gear wherein more than the 4th gear.
10. light-dividing device according to claim 1 is characterized in that wherein said filter element has the optical filter of at least two kinds of colors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100752146A CN100403089C (en) | 2005-06-03 | 2005-06-03 | Beam splitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100752146A CN100403089C (en) | 2005-06-03 | 2005-06-03 | Beam splitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873467A CN1873467A (en) | 2006-12-06 |
| CN100403089C true CN100403089C (en) | 2008-07-16 |
Family
ID=37483987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100752146A Expired - Fee Related CN100403089C (en) | 2005-06-03 | 2005-06-03 | Beam splitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100403089C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040032572A1 (en) * | 2002-08-19 | 2004-02-19 | Ke-Shu Chin | Color wheel and motor thereof |
| US20040130684A1 (en) * | 2002-08-29 | 2004-07-08 | Samsung Electronics Co., Ltd. | Single-panel color image display apparatus and scrolling method |
| US6769776B1 (en) * | 2003-02-24 | 2004-08-03 | Prodisc Technology Inc. | Color wheel assembly |
| JP2004294985A (en) * | 2003-03-28 | 2004-10-21 | Plus Vision Corp | Illumination optical system and projector using the same |
-
2005
- 2005-06-03 CN CNB2005100752146A patent/CN100403089C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040032572A1 (en) * | 2002-08-19 | 2004-02-19 | Ke-Shu Chin | Color wheel and motor thereof |
| US20040130684A1 (en) * | 2002-08-29 | 2004-07-08 | Samsung Electronics Co., Ltd. | Single-panel color image display apparatus and scrolling method |
| US6769776B1 (en) * | 2003-02-24 | 2004-08-03 | Prodisc Technology Inc. | Color wheel assembly |
| JP2004294985A (en) * | 2003-03-28 | 2004-10-21 | Plus Vision Corp | Illumination optical system and projector using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1873467A (en) | 2006-12-06 |
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| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 |