CN2670972Y - Multi-light source illuminator of projector - Google Patents
Multi-light source illuminator of projector Download PDFInfo
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- CN2670972Y CN2670972Y CN 200420014456 CN200420014456U CN2670972Y CN 2670972 Y CN2670972 Y CN 2670972Y CN 200420014456 CN200420014456 CN 200420014456 CN 200420014456 U CN200420014456 U CN 200420014456U CN 2670972 Y CN2670972 Y CN 2670972Y
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- 230000003287 optical Effects 0.000 claims description 114
- 238000005286 illumination Methods 0.000 abstract description 24
- 238000010586 diagram Methods 0.000 description 9
- 230000011514 reflex Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004446 light reflex Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Abstract
The utility model discloses the multi-light source illumination device of projectors, comprising at least two light sources. The switching between the light sources can be realized through the rotation of an electric motor and a rotating shaft, and the switching and overlapping between the light sources can also be realized through a light splitting mirror or a light reflecting mirror. The utility model dispenses with changing the subsequent optics components; the multi-light sources can singly work and realize the switching function, can simultaneously work to make the energy of the illumination light improved for one time, and all can ensure the illumination to be homogeneous. The utility model is suitable for the illumination of the projector as well as other products in need of illumination.
Description
Technical field
The utility model relates to the light source illuminating apparatus of a kind of projector in the optical instrument field, relates in particular to a kind of multi-light source illuminator for projectors.
Background technology
Now the projector on the market adopts LCD or DLP technology mostly, and its core light engine mainly is to adopt light source through illumination optics throw light on its LCD panel or DMD micromirror assemblies, sees through projection lens then and images on the projection screen.Be the illumination path synoptic diagram of canonical projection machine as shown in Figure 1, the converging light that is provided by light source shines on the developing element through colour wheel, lamp guide, relay len group and prism group, and then by projection lens projects to screen.
In order to guarantee the brightness of projection image, the light source many places in the projector are in high-power duty, and its mission life is subjected to certain restriction, how between 1500 to 6000 hours.Consider that present many users have the requirement of 7 * 24 continuous throughout the twenty-four hour24s, therefore, how to change the lighting source that lost efficacy fast is one of technical problem that faces.The present invention proposes under such background.
The Chinese patent publication number is that the patent of invention of CN1300953A discloses a kind of liquid crystal projector with dual-lamp structure, has proposed mode and example that the two light sources of several liquid crystal projectors throw light on simultaneously.But they have a common problem, the situation that can occur illumination unevenness when a light source in using two light sources throws light on separately exactly, therefore can not solve the problem of two light source switch operatings, and need do bigger change to follow-up optics when using this patented method.
The utility model content
The purpose of this utility model is to provide a kind of multi-light source illuminator for projectors, need not to change the automatic switchover that the subsequent optical parts can be realized light source of projector, has guaranteed the permanent stable of projector's brightness.
The purpose of this utility model is achieved by the following technical programs:
The multiple source lighting fixture of a kind of projector that the utility model provides, comprise at least two light sources and by the rotating shaft of driven by motor, described light source is fixed in the rotating shaft, each light source can drive through rotating shaft the optical axis of each light source is overlapped with the primary optical axis of the subsequent optical device of projector, and the output light focusing of each light source is projected in the subsequent optical device of projector.The utility model is realized what light source switched by motor and direct driving light source displacement of rotating shaft or rotation.
The utility model can be done following further improvement: the utility model comprises the light source of two output converging lights, the optical axis of described two light sources and shaft parallel, and two light sources are symmetrically fixed in the rotating shaft.Two light sources that are respectively work light and standby power source are settled side by side, can rotate around the shaft by motor-driven, when the work light inefficacy maybe needed to change light source, the motor rotation was changed the position of standby power source and work light mutually, thereby finishes the action of toggle lights.
The utility model also can comprise the light sources of two output converging lights, and the optical axis of described two light sources is vertical with rotating shaft, and two light sources are fixed in that the optical axis of two light source is 90 ° or 180 ° in the rotating shaft.Standby power source also can become vertical 90 ° of directions or 180 ° of directions to place with work light, by motor-driven light sources half-twist or 180 ° of actions that then can realize toggle lights.
The multiple source lighting fixture of a kind of projector that the utility model provides, comprise two collimated light sources, rotating shaft, rotatable reflective mirror and condenser by driven by motor, the optical axis of one of them light source and condenser are positioned on the primary optical axis of subsequent optical device, and the output light of this light source focuses on through condenser and projects in the subsequent optical device of projector; Described rotatable reflective mirror is fixed in the rotating shaft, and this rotatable reflective mirror can be 45 ° of placements with primary optical axis by the rotating shaft drive and it is centered close on the primary optical axis; The output of another light source is on reflective mirror and described condenser focus on colour wheel in the subsequent optical device that projects projector.The utility model has been introduced reflective mirror and condenser, and two collimated light sources that are respectively work light and standby power source maintain static, and rotatable reflective mirror can be rotated by motor-driven.When work light was worked, rotatable reflective mirror was parallel with the optical axis of work light.When the work light inefficacy maybe needs to change light source, rotatable reflective mirror is driven to go to by rotating shaft and is 45 ° with primary optical axis and places and it is centered close on the primary optical axis, the output of standby power source is projected in the subsequent optical device of projector through reflective mirror and the focusing of described condenser, thereby realize the action of toggle lights.
Another light source described in the utility model is vertical with light source on being positioned at primary optical axis; This another light source outputs to described condenser through the rotatable reflective mirror that described and primary optical axis are 45 ° of placements.
The utility model also can be that described another light source is parallel with the light source on being positioned at primary optical axis, and this another light source output is through being the fixed counter-mirror of 45 ° of placements with its output light and rotatable reflective mirror that described and primary optical axis is 45 ° of placements outputs to described condenser.
The multiple source lighting fixture of a kind of projector that the utility model provides, comprise two collimated light sources, spectroscope, reflective mirror and condenser, described two light sources are positioned at the same side of projector's subsequent optical device primary optical axis, one of them light source is parallel with described primary optical axis, another light source is vertical with described primary optical axis, described condenser is positioned on the primary optical axis, spectroscope places the intersection of two light sources and is 45 ° with primary optical axis, described reflective mirror places the opposite side of primary optical axis, this reflective mirror is parallel with spectroscope, and the output of two light sources mixes through spectroscope and reflective mirror, project in the subsequent optical device of projector through condenser focusing.The light beam that two light sources send is by the spectroscope of a half-transmitting and half-reflecting, and the light beam that two light sources are sent mixes mutually, then through reflective mirror wherein after a branch of the turning back, is converged among the follow-up system by condenser system again.But two light source timesharing work independently and realize handoff functionality, and also can work simultaneously doubles the illumination light energy, and the light output that also is about to projector doubles.Because the light beam of two light sources is through mutual hybrid processing, therefore, no matter two light sources work independently is still worked simultaneously, and its illumination all is uniform.
The multiple source lighting fixture of a kind of projector that the utility model provides, comprise two collimated light sources, spectroscope, two reflective mirrors and condenser, described two light sources are positioned at the same side of projector's subsequent optical device primary optical axis, two light sources are parallel with described primary optical axis, and described condenser is positioned on the primary optical axis; One of them reflective mirror is 45 ° of placements with the output light of the light source that is positioned at the top, the output light of the light source above described being positioned at is through output light vertical cross of this reflective mirror with another light source, and described spectroscope places the intersection of two light sources and is 45 ° with primary optical axis; Another reflective mirror places the opposite side of primary optical axis, and this reflective mirror is parallel with spectroscope, the output of two light sources through spectroscope and reflective mirror mix, on condenser focuses on colour wheel in the subsequent optical device that projects projector.The utility model also can be realized two light source timesharing execution handoff functionality that works independently, or works simultaneously the illumination light energy is doubled, and no matter two light sources work independently still works simultaneously, and its illumination all is uniform.
The utility model is equally applicable to the situation that multiple light courcess switches.
The utlity model has following beneficial effect:
(1) need not to change the subsequent optical parts can realize, the automatic switchover by multiple light courcess has guaranteed the permanent stable of projector's brightness.
(2) the multiple light courcess realization handoff functionality that both can work independently, can work simultaneously again doubles the illumination light energy.
(3) no matter light source is worked or alternation simultaneously, can guarantee that all its illumination all is uniform.
(4) light source can be a luminophor arbitrarily, and its outgoing beam can be a convergence type, also can be collimation-type.The utility model both can be used for the illumination of projector, also can use in other product that need throw light on.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail:
Fig. 1 is the illumination path synoptic diagram of prior art projector;
Fig. 2 is the illumination path synoptic diagram of one of embodiment of the present utility model;
Fig. 3 is two the illumination path synoptic diagram of embodiment of the present utility model;
Fig. 4 is three the illumination path synoptic diagram of embodiment of the present utility model;
Fig. 5 is four the illumination path synoptic diagram of embodiment of the present utility model;
Fig. 6 is five the illumination path synoptic diagram of embodiment of the present utility model;
Fig. 7 is six the illumination path synoptic diagram of embodiment of the present utility model;
Fig. 8 is seven the illumination path synoptic diagram of embodiment of the present utility model.
Embodiment
Embodiment one
Figure 2 shows that one of embodiment of the present utility model, comprise work light 1, standby power source 2, motor 3 and rotating shaft 4.Colour wheel 12, lamp guide 13, relay len group 14, image device 15 and projection lens 16 are the parts of the subsequent optical device of projector.Work light 1 and standby power source 2 are the convergence type light source, and rotating shaft 4 is driven by motor 3, and work light 1 and standby power source 2 are symmetrically fixed on the below and the top of rotating shaft 4, and optical axis and shaft parallel.Work light 1 its optical axis overlaps with the primary optical axis 11 of the subsequent optical device of projector, and its output light focuses on the colour wheel 12 in the subsequent optical device project projector.When work light 1 lost efficacy when maybe needing to change light source, motor 3 Rotate 180s ° change the position of standby power source 2 and work light 1 mutually, thereby finish the action of toggle lights.
Embodiment two
Figure 3 shows that two of embodiment of the present utility model, different with embodiment one is: the optical axis of work light 1 and standby power source 2 is vertical with rotating shaft 4, and two light sources are 90 ° mutually and are fixed in the rotating shaft 4.Motor 3 half-twists are finished the action of toggle lights.
Embodiment three
Figure 4 shows that three of embodiment of the present utility model, different with embodiment two is: two light sources are 180 ° mutually and are fixed in the rotating shaft 4.Motor 3 Rotate 180s ° are finished the action of toggle lights.
The also available collimation-type light source of convergence type light source in the foregoing description one, two, three is replaced, when adopting the collimation-type light source, get final product increasing a condenser in the above-described embodiments, the collimation-type light source is projected behind condenser on the colour wheel 12 in the subsequent optical device of projector again.
Embodiment four
Figure 5 shows that four of embodiment of the present utility model, comprise work light 1, standby power source 2, motor 3, rotating shaft 4, rotatable reflective mirror 5 and condenser 6 by motor 3 drives.Colour wheel 12, lamp guide 13, relay len group 14, image device 15 and projection lens 16 are the parts of the subsequent optical device of projector.Work light 1 and standby power source 2 are the collimation-type light source, and the optical axis of work light 1 and condenser 6 are positioned on the primary optical axis 11 of subsequent optical device, and the output light of this light source is on condenser focuses on colour wheel 12 in the subsequent optical device project projector.Motor 3, rotating shaft 4 and standby power source 2 are positioned at the top of primary optical axis 11, are 90 ° of settings between standby power source 2 and the work light 1, and motor 3 and rotating shaft 4 are positioned at the centre of two light sources.One end of rotatable reflective mirror 5 is fixed in the rotating shaft 4, is driven by rotating shaft 4 can be 45 ° with primary optical axis 11 and place and it is centered close on the primary optical axis 11.Rotatable reflective mirror 5 is parallel with primary optical axis 11 during work light 1 work, and its output light focusing projects on the colour wheel 12 in the subsequent optical device of projector.When work light 1 inefficacy maybe needs to change light source, motor 3 rotations make rotatable reflective mirror 5 be 45 ° of placements with primary optical axis 11 for 45 °, the output light of standby power source 2 reflexes on the condenser 6 through rotatable reflective mirror 5, on the colour wheel 12 that condenser 6 focuses in the subsequent optical device that projects projector.
Embodiment five
Figure 6 shows that five of embodiment of the present utility model, different with embodiment four is: standby power source 2 be arranged in parallel side by side with work light 1, and the output direction of light is identical; Also be provided with a fixed counter-mirror 7 on the optical axis of standby power source 2, the optical axis of this reflective mirror and standby power source 2 is 45 ° and its and is centered close on the optical axis of standby power source 2.When using standby power source 2, motor 3 rotations make rotatable reflective mirror 5 be 45 ° of placements with primary optical axis 11 for 45 °, the output light of standby power source 2 reflexes on the rotatable reflective mirror 5 through fixed counter-mirror 7, reflex on the condenser 6 through rotatable reflective mirror 5 then, after on the colour wheel 12 that condenser 6 focuses in the subsequent optical device that projects projector.
Embodiment six
Figure 7 shows that six of embodiment of the present utility model, comprise two collimated light sources, spectroscope 8, reflective mirror 9 and condenser 6.Colour wheel 12, lamp guide 13, relay len group 14, image device 15 and projection lens 16 are the parts of the subsequent optical device of projector.Two light sources are positioned at the top of projector's subsequent optical device primary optical axis 11, wherein work light 1 is parallel with primary optical axis 11, standby power source 2 is vertical with primary optical axis 11, condenser 6 is positioned on the primary optical axis 11, spectroscope 8 places the intersection of two light sources and is 45 ° with primary optical axis 11, reflective mirror 9 places the below of primary optical axis 11 and parallel with spectroscope 8, the output of two light sources through spectroscope 8 and reflective mirror 9 mix, on the colour wheel 12 that condenser 6 focuses in the subsequent optical device that projects projector.When using work light 1 separately, the light of output arrives spectroscope 8, and wherein half light transmission spectroscope 8 arrives the top of condenser 6, and second half light reflexes on the reflective mirror 9 through spectroscope 8, after reflective mirror 9 arrives the bottom of condenser 6.Two parts light is on the colour wheel 12 that condenser 6 focuses in the subsequent optical device that projects projector.When using standby power source 2 separately, the light of output arrives spectroscope 8, wherein half light reflexes to the top of condenser 6 through spectroscope 8, second half light transmission spectroscope 8 reflexes to the bottom of condenser 6 through reflective mirror 9, on the colour wheel 12 that two parts light microscopic condenser 6 focuses in the subsequent optical device that projects projector.When using two light sources simultaneously, the light of two light sources output is added on the condenser 6 as mentioned above, and on the colour wheel 12 that condenser 6 focuses in the subsequent optical device that projects projector, this moment, the illumination light energy doubled.
Embodiment seven
Figure 8 shows that seven of embodiment of the present utility model, and implement six and different be: standby power source 2 is set in parallel in the top of work light 1 side by side, and the output direction of light is identical; Also be provided with a fixed counter-mirror 10 on the optical axis of standby power source 2, the optical axis of this reflective mirror and standby power source 2 is 45 ° and its and is centered close on the optical axis of standby power source 2.The output light of standby power source 2 at first reflexes on the spectroscope 8 through fixed counter-mirror 10.
Claims (8)
1, a kind of multi-light source illuminator for projectors, it is characterized in that: comprise at least two light sources and by the rotating shaft of driven by motor, described light source is fixed in the rotating shaft, each light source can drive through rotating shaft the optical axis of each light source is overlapped with the primary optical axis of the subsequent optical device of projector, and the output light of each light source is projected in the subsequent optical device of projector.
2, multi-light source illuminator for projectors according to claim 1 is characterized in that: comprise the light source of two output converging lights, and the optical axis of described two light sources and shaft parallel, two light sources are symmetrically fixed in the rotating shaft.
3, multi-light source illuminator for projectors according to claim 1, it is characterized in that: the light source that comprises two output converging lights, the optical axis of described two light sources is vertical with rotating shaft, and rotating shaft and primary optical axis quadrature, two light sources are fixed in that the optical axis of two light source is 90 ° or 180 ° in the rotating shaft.
4, a kind of multi-light source illuminator for projectors, it is characterized in that: comprise two collimated light sources, rotating shaft, rotatable reflective mirror and condenser by driven by motor, the optical axis of one of them light source and condenser are positioned on the primary optical axis of subsequent optical device, and the output light of this light source focuses on through condenser and projects in the subsequent optical device of projector; Described rotatable reflective mirror is fixed in the rotating shaft, and this rotatable reflective mirror can be 45 ° of placements with primary optical axis by the rotating shaft drive and it is centered close on the primary optical axis; The output light of another light source projects in the subsequent optical device of projector through this reflective mirror and the focusing of described condenser.
5, multi-light source illuminator for projectors according to claim 4 is characterized in that: described another light source is vertical with light source on being positioned at primary optical axis; This another light source outputs on the described condenser through the rotatable reflective mirror that described and primary optical axis are 45 ° of placements.
6, multi-light source illuminator for projectors according to claim 4, it is characterized in that: described another light source is parallel with the light source on being positioned at primary optical axis, and this another light source output is through being the fixed counter-mirror of 45 ° of placements with its output light and rotatable reflective mirror that described and primary optical axis is 45 ° of placements outputs on the described condenser.
7, a kind of multi-light source illuminator for projectors, it is characterized in that: comprise two collimated light sources, spectroscope, reflective mirror and condenser, described two light sources are positioned at the same side of projector's subsequent optical device primary optical axis, one of them light source is parallel with described primary optical axis, another light source is vertical with described primary optical axis, described condenser is positioned on the primary optical axis, spectroscope places the intersection of two light sources and is 45 ° with primary optical axis, described reflective mirror places the opposite side of primary optical axis, this reflective mirror is parallel with spectroscope, and the output of two light sources mixes through spectroscope and reflective mirror, project in the subsequent optical device of projector through condenser focusing.
8, a kind of multi-light source illuminator for projectors, it is characterized in that: comprise two collimated light sources, spectroscope, two reflective mirrors and condenser, described two light sources are positioned at the same side of projector's subsequent optical device primary optical axis, two light sources are parallel with described primary optical axis, and described condenser is positioned on the primary optical axis; One of them reflective mirror is 45 ° of placements with the output light of the light source that is positioned at the top, the output light of the light source above described being positioned at is through output light vertical cross of this reflective mirror with another light source, and described spectroscope places the intersection of two light sources and is 45 ° with primary optical axis; Another reflective mirror places the opposite side of primary optical axis, and this reflective mirror is parallel with spectroscope, and the output of two light sources mixes, projects in the subsequent optical device of projector through condenser focusing through spectroscope and reflective mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420014456 CN2670972Y (en) | 2004-01-06 | 2004-01-06 | Multi-light source illuminator of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420014456 CN2670972Y (en) | 2004-01-06 | 2004-01-06 | Multi-light source illuminator of projector |
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| CN2670972Y true CN2670972Y (en) | 2005-01-12 |
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| CN 200420014456 Expired - Fee Related CN2670972Y (en) | 2004-01-06 | 2004-01-06 | Multi-light source illuminator of projector |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266397B (en) * | 2008-04-22 | 2010-09-15 | 广东威创视讯科技股份有限公司 | Double lamp projector lamp-exchanging device |
| CN102073137A (en) * | 2010-11-29 | 2011-05-25 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) illuminating device and projector |
| CN102740113A (en) * | 2012-07-06 | 2012-10-17 | 科瑞自动化技术（苏州）有限公司 | Sensitization measurement device of miniature camera |
| CN102966926A (en) * | 2012-07-06 | 2013-03-13 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| CN105116114A (en) * | 2015-09-21 | 2015-12-02 | 江苏英诺华医疗技术有限公司 | Biochemical analyzer intelligent light source replacement device as well as failure judgment and replacement method |
| CN107748476A (en) * | 2017-11-13 | 2018-03-02 | 苏州佳世达光电有限公司 | A kind of more lamp projection arrangements and a kind of ignition method |
| CN111856862A (en) * | 2019-04-30 | 2020-10-30 | 深圳光峰科技股份有限公司 | Light source system and display device |
| CN112612187A (en) * | 2020-12-31 | 2021-04-06 | 福州大学 | Device for realizing large-area multi-light-source high-uniformity exposure and manufacturing method thereof |
-
2004
- 2004-01-06 CN CN 200420014456 patent/CN2670972Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266397B (en) * | 2008-04-22 | 2010-09-15 | 广东威创视讯科技股份有限公司 | Double lamp projector lamp-exchanging device |
| CN102073137A (en) * | 2010-11-29 | 2011-05-25 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) illuminating device and projector |
| CN102740113A (en) * | 2012-07-06 | 2012-10-17 | 科瑞自动化技术（苏州）有限公司 | Sensitization measurement device of miniature camera |
| CN102966926A (en) * | 2012-07-06 | 2013-03-13 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| CN102966926B (en) * | 2012-07-06 | 2014-08-06 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| CN105116114A (en) * | 2015-09-21 | 2015-12-02 | 江苏英诺华医疗技术有限公司 | Biochemical analyzer intelligent light source replacement device as well as failure judgment and replacement method |
| WO2017049899A1 (en) * | 2015-09-21 | 2017-03-30 | 江苏英诺华医疗技术有限公司 | Smart light source replacement apparatus and fault judgement replacement method for biochemical analyser |
| CN107748476A (en) * | 2017-11-13 | 2018-03-02 | 苏州佳世达光电有限公司 | A kind of more lamp projection arrangements and a kind of ignition method |
| CN111856862A (en) * | 2019-04-30 | 2020-10-30 | 深圳光峰科技股份有限公司 | Light source system and display device |
| WO2020220701A1 (en) * | 2019-04-30 | 2020-11-05 | 深圳光峰科技股份有限公司 | Light source system and display device |
| CN112612187A (en) * | 2020-12-31 | 2021-04-06 | 福州大学 | Device for realizing large-area multi-light-source high-uniformity exposure and manufacturing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG VTRON VIDEO TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: WEICHUANG RIXIN ELECTRONIC CO., LTD., GUANGDONG |
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| CP03 | Change of name, title or address |
Address after: No. 6, color frequency Road, hi tech Industrial Development Zone, Guangdong, Guangzhou Province: 510663 Patentee after: Guangdong Weichuangshixun Science and Technology Co., Ltd. Address before: Building 4, building 60, Middle Road, Tianhe Industrial Park, Guangdong, Guangzhou Province, China: 510665 Patentee before: Weichuangrixin Electronic Co., Ltd., Guangdong |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050112 Termination date: 20120106 |