CN2891006Y - Light equalizer and optical engine lighting system with the same - Google Patents
Light equalizer and optical engine lighting system with the same Download PDFInfo
- Publication number
- CN2891006Y CN2891006Y CN 200620054233 CN200620054233U CN2891006Y CN 2891006 Y CN2891006 Y CN 2891006Y CN 200620054233 CN200620054233 CN 200620054233 CN 200620054233 U CN200620054233 U CN 200620054233U CN 2891006 Y CN2891006 Y CN 2891006Y
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- Prior art keywords
- light
- balancing device
- light pipe
- optical wand
- light balancing
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Abstract
A novel dodging device comprises a section hollow light pipe, in particular to a section dodging bar nested Joined actively with the hollow light pipe. An optical engine lighting system comprises a lighting supply source, a dodging device and a relay imaging system. The convergent light from lighting supply source formed symmetrical lighting facular via the dodging device, and images on the display photo value; in particular that the dodging device at least comprises a section hollow light pipe nested Joined actively a section solid light bar; the solid light bar provides the light incident face of the dodging device and the hollow light pipe provides the light exit facet. The utility model has the advantages of prolonging the useful time of light source bulb, easy to accomplish, lower cost and a good effect.
Description
Technical field the utility model relates to optical element or systems technology, relates in particular to the removable optical element of regulating light intensity.
The optical system of background technology canonical projection equipment (being called " light engine " usually) is as shown in Figure 1: the light that light source 200 sends converges on the colour wheel 206 through behind the infrared fileter 203, again through repeatedly reflecting to form rectangular light spot very uniformly in the optical tunnel 106, and then be imaged onto through relay lens system 212 and prism module 215 and show on the light valve 218, be imaged onto on the screen by projection lens again.
Chinese patent ZL 01279602 also discloses a kind of " reflective type silicon-based liquid crystal projection machine optical system " that adopts the fly's-eye lens battle array to spare light.Because realize the system architecture more complicated of even light with fly eye lens array, especially China does not still possess the working ability of fly's-eye lens at present, therefore, optical tunnel 106 shown in Figure 1 is the light balancing devices that more often are used, it comprises hollow light pipe and two kinds of forms of solid optical wand, for example sees application number and be 03115952 Chinese patent disclosed " optical wand-type optical engine lighting system ".What Fig. 2 a illustrated is hollow light pipe, and its four sides is the reflective mirror of high reflectance, uses glue (as adhesive tape 210e) bonding each other.In actual the use, light passes through to form uniform light spots in the repeatedly reflection of reflective face at exit end.Shown in Fig. 2 b to be one be the solid optical wand of example with six all polished rectangular structure, light at polished surface through repeatedly forming hot spot very uniformly at exit end after the total reflection.
Comprise that with Fig. 3 the projection light source of bulb and reflection concentration type cup is an example, usually UHP lamp or the xenon lamp that adopts all is based on gas discharge principle, between the two poles of the earth of bulb, certainly exist certain interval, simultaneously because the design deviation and the rigging error of reflection concentration type cup, make the space distribution and the angular distribution of outgoing light source exist unevenness, general focus not exclusively is the data DE that producer provided also, but focus as shown in the drawing has certain variation range AB, and the actual hot spot that converges is rendered as the complex object with a uniform section and space distribution.
Above-mentioned the deficiencies in the prior art part is: because projection light source is fixed with the relative position of corresponding light balancing device in the use, and the focal position of projection light source is the parameter of a variation in the life cycle of whole bulb, elongated gradually along with lamp arc in the long-term use, focal length focal position respective change causes the capacity usage ratio of illuminator and the result of use of projector equipment to descend gradually.If adopt to change the form of light source, because of bulb does not in fact reach its life span, the inevitable existence wasted.
In addition, in use also there is following deficiency in existing optical tunnel: for hollow light pipe, closer from the focus of projection light source when the plane of incidence, and near the temperature the focus is easy to cause the solid-state glue fusing of bonding usefulness when higher, thus the even light effect of influence; Usually all have bigger numerical aperture because of most of optical projection system at the focus annex in addition, and the incident ray of wide-angle will increase the difficulty that is coated with of reflexed light film, thereby give even light application the having increased restriction of hollow light pipe.For solid optical wand, owing to will satisfy the requirement of total reflection, each dihedral angle of rectangular parallelepiped and trihedral angle all must keep extraordinary crest line and corner angle in reality processing, especially require to have higher surfaceness and smooth finish at the outgoing end face, any point flaw (comprising the dust fall that gathers) all will be presented on the face of elephant by hundreds of times of amplifications of relay lens system and projection lens, causes the havoc to imaging and result of use.
Utility model content the technical problems to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of novel light balancing device is proposed and with the optical engine lighting system of this light balancing device, can be in long-term the use, compensate that projector equipment brightness is passed in time and the continuous defective of deepening by regulating.
For solving the problems of the technologies described above, of the present utility modelly be contemplated that substantially: consider the deficiency separately and the strong point of existing two kinds of optical tunnels, combine them a kind of novel light balancing device of design, adjustable in length; Like this, the plane of incidence can be adjusted to the optimum position to the distance of light source in good time.Using the optical engine lighting system of this optical tunnel, is exit facet if select hollow light pipe, and solid optical wand is the plane of incidence, can also solve the plane of incidence power when big or the deficiency of solid optical wand dust stratification.
As the technical scheme that realizes the utility model design be, a kind of novel light balancing device is provided, comprise one section hollow light pipe, especially, at least also comprise one section optical tunnel that is nested and flexibly connects with described hollow light pipe.
In the such scheme, described optical tunnel is hollow light pipe or solid optical wand.
In the such scheme, described light balancing device also comprises stationary installation and regulating device; Described stationary installation and described light balancing device mechanical connection comprise the holder of fixing this light balancing device and exit facet, and fastening and support the slippage support member of this light balancing device plane of incidence place end optical tunnel; Described regulating device and described slippage support member link, to guide this support member and described plane of incidence translation.
As the technical scheme that realizes the utility model design can also be, a kind of optical engine lighting system with light balancing device is provided, comprise lighting source, light balancing device and relaying imaging system, the light that converges that described lighting source sends forms illumination hot spot uniformly behind described light balancing device, and images in the demonstration light valve through described relaying imaging system and reflective mirror; Especially, described light balancing device comprises one section hollow light pipe and one section solid optical wand at least, the two flexible connection that is nested; Described solid optical wand provides the light entrance face of this light balancing device, and described hollow light pipe provides the light-emitting face of this light balancing device.
In the such scheme, also comprise the stationary installation and the regulating device of described light balancing device; Described stationary installation comprises the holder of fixing described hollow light pipe, and fastening and support the slippage support member of described solid optical wand; Described regulating device and described slippage support member link, to guide this support member and described solid optical wand translation.
Adopt above-mentioned each technical scheme, make light balancing device can the compensate for optical engine use projection brightness to pass in time and the continuous defective of deepening for a long time, and implementation is simple, cost is low, effective.
Description of drawings Fig. 1 is the optical system structure synoptic diagram of canonical projection equipment
Fig. 2 a is the structural representation of prior art hollow light pipe
2b is the structural representation of the solid optical wand of prior art
Fig. 3 is a prior art projection light source synoptic diagram
Fig. 4 a and 4b are the structural representations of the utility model light balancing device
Fig. 5 is the fixing and adjustment structure synoptic diagram of the utility model light balancing device
Fig. 6 is the structural representation of the utility model light engine
Label among above-mentioned each figure is: 106---solid light pipe, and 210---hollow light pipe; 306---the solid optical wand in inclined-plane, 310---the inclined-plane hollow light pipe; 300,312---holder, 303---the slippage support member; 307---stage clip, 309,318---trip bolt, 313---diaphragm for eliminating stray light, 315---adjuster bar; 200---lighting source, 203---cutoff filter, 206---the rotation colour wheel, 212---the relaying imaging system, 215---reflective mirror, 218---show light valve.
Below the embodiment, the most preferred embodiment shown in is further set forth the utility model in conjunction with the accompanying drawings.
As shown in Figure 4, novel light balancing device of the present utility model comprises one section hollow light pipe and one section optical tunnel that is nested and flexibly connects with described hollow light pipe at least; Described optical tunnel can be a hollow light pipe, also can be solid optical wand; Can realize the axial stretching of this light balancing device like this.Shown in Fig. 4 a, the plane of incidence of described same hollow light pipe or solid optical wand and exit facet size can not wait, and promptly adopt existing solid optical wand 306 in the widely used inclined-plane of light engine or inclined-plane hollow light pipe 310.Fig. 4 b is the improved structure of Fig. 4 a, adopts to equate/plane of incidence and full right angle cylinder, can make that two sections light between the optical tunnel go out, the plane of incidence better is coupled.
Describedly go out/shape of the plane of incidence can be a polygon, comprises square, rhombus, regular hexagon or other geometric configuratioies.Described hollow light pipe can also comprise the bending hollow light pipe, and described solid optical wand can also comprise the solid optical wand of bending, is provided with reflex reflector lens or prism in described bending place.Simple in structure because of it, add diagram no longer in addition.
Described light balancing device also comprises stationary installation and regulating device as shown in Figure 5; Described stationary installation and described light balancing device mechanical connection comprise the holder 312,300 of fixing this light balancing device and exit facet, and fastening and support the slippage support member 303 of this light balancing device plane of incidence place end optical wand (is example with solid light pipe 106); Stage clip 307 and trip bolt 309 play the effect of fastening solid light pipe 106.Described regulating device and described slippage support member 303 link, to guide this support member and described plane of incidence translation; It comprises the regulating tank on the described holder, is limited in the adjuster bar 315 of translation in this regulating tank and the trip bolt 318 of described slippage support member.Can also comprise diaphragm for eliminating stray light 313, be placed on the hollow light pipe 210 of this light balancing device exit facet place end.
In actual the use, at first according to the position of system optics designing requirement fixation hollow light pipe 210, fastening with stage clip and screw, in light path system, come the solid optical wand 106 of axial translation then by regulating adjuster bar 315, simultaneously add an illuminometer and carry out online detection in the Centromedian position of screen, when solid optical wand 106 moved to a suitable position and described illuminometer demonstration maximal value, the described plane of incidence then was positioned to the optimum coupling position.After light engine uses certain hour to find that brightness decays to some extent, can repeat the adjustment process of above-mentioned light balancing device.
Any end face at described hollow light pipe or solid optical wand can also be provided with the device of light retracting device, band filtering device or play inclined to one side/Calibrator, gives unnecessary details no longer one by one.
Fig. 6 has illustrated the structure of the utility model light engine, with the utilization in the DLP optical engine lighting system is example, it comprises lighting source 200, light balancing device and relaying imaging system 212, the light that converges that described lighting source 200 sends forms illumination hot spot uniformly behind described light balancing device, and images in demonstration light valve 218 through described relaying imaging system 212 and reflective mirror 215.Consider the high power of lighting source, described light balancing device comprises one section hollow light pipe and one section solid optical wand at least in this system, and described solid optical wand provides the light entrance face of this light balancing device, and described hollow light pipe provides the light-emitting face of this light balancing device.But the time domain that also is provided with high speed rotating between described solid optical wand and the lighting source is closed color device, is example with rotation colour wheel 206.Behind the light process cutoff filter 203 that spheroid shape UHP lamp 200 sends, converge in the incident end face of solid optical wand, the rotation colour wheel 206 of high speed rotating is filtered into a kind of again after the repeatedly reflection of solid optical wand in redness, green, the blueness with light, enter the incident end face of hollow light pipe, thereby the outgoing end face at this light pipe forms rectangular light spot more uniformly, is used for realizing the synthetic and color rendition of color of total system.
Described reflective mirror 215 comprises the total reflection prism module; Described demonstration light valve 218 comprises digital processing chip, is used for that incoming video signal is modulated the back projection imaging and goes to screen.
The utility model is through checking on probation, and the utilization effect in the high-power projection lamp bubble is particularly evident.
Claims (12)
1. a novel light balancing device comprises one section hollow light pipe, it is characterized in that:
At least also comprise one section optical tunnel that is nested and flexibly connects with described hollow light pipe.
2. novel light balancing device according to claim 1 is characterized in that:
Described optical tunnel is hollow light pipe or solid optical wand.
3. novel light balancing device according to claim 1 and 2 is characterized in that:
Described hollow light pipe or solid optical wand go out/plane of incidence be shaped as polygon, comprise square, rhombus or regular hexagon.
4. novel light balancing device according to claim 3 is characterized in that:
The plane of incidence and the exit facet of described same hollow light pipe or solid optical wand differ in size.
5. novel light balancing device according to claim 1 and 2 is characterized in that:
Described hollow light pipe comprises the bending hollow light pipe, is provided with reflex reflector lens or prism in described bending place; Described solid optical wand comprises the solid optical wand of bending, is provided with reflex reflector lens or prism in described bending place.
6. novel light balancing device according to claim 1 is characterized in that:
Also comprise stationary installation and regulating device; Described stationary installation and described light balancing device mechanical connection comprise the holder of fixing this light balancing device and exit facet, and fastening and support the slippage support member of this light balancing device plane of incidence place end optical wand;
Described regulating device and described slippage support member link, to guide this support member and described plane of incidence translation.
7. novel light balancing device according to claim 6 is characterized in that:
Described regulating device comprises the regulating tank on the described holder, is limited in the adjuster bar of translation in this regulating tank and the trip bolt of described slippage support member.
8. novel light balancing device according to claim 1 and 2 is characterized in that:
Any end face at described hollow light pipe or solid optical wand is provided with the device of light retracting device, band filtering device or plays inclined to one side/Calibrator.
9. optical engine lighting system with light balancing device, comprise lighting source, light balancing device and relaying imaging system, the light that converges that described lighting source sends forms illumination hot spot uniformly behind described light balancing device, and images in the demonstration light valve through described relaying imaging system and reflective mirror; It is characterized in that:
Described light balancing device comprises one section hollow light pipe and one section solid optical wand at least, the two flexible connection that is nested; Described solid optical wand provides the light entrance face of this light balancing device, and described hollow light pipe provides the light-emitting face of this light balancing device.
10. according to the optical engine lighting system of the described band light balancing device of claim 9, it is characterized in that:
The stationary installation and the regulating device that also comprise described light balancing device;
Described stationary installation comprises the holder of fixing described hollow light pipe, and fastening and support the slippage support member of described solid optical wand;
Described regulating device and described slippage support member link, to guide this support member and described solid optical wand translation.
11. the optical engine lighting system according to the described band light balancing device of claim 9 is characterized in that:
Described regulating device comprises the regulating tank on the described holder, is limited in the adjuster bar of translation in this regulating tank and the trip bolt of described slippage support member.
12. the optical engine lighting system according to the described band light balancing device of claim 9 is characterized in that:
But the time domain that is provided with high speed rotating between described solid optical wand and the lighting source is closed color device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054233 CN2891006Y (en) | 2006-01-20 | 2006-01-20 | Light equalizer and optical engine lighting system with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054233 CN2891006Y (en) | 2006-01-20 | 2006-01-20 | Light equalizer and optical engine lighting system with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891006Y true CN2891006Y (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620054233 Expired - Fee Related CN2891006Y (en) | 2006-01-20 | 2006-01-20 | Light equalizer and optical engine lighting system with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891006Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314064A (en) * | 2011-08-25 | 2012-01-11 | 北京亚视创业科技发展有限公司 | Composite light tunneling used for projector (projection apparatus) |
| CN103323951A (en) * | 2013-04-04 | 2013-09-25 | 深圳市绎立锐光科技开发有限公司 | Light distributing rod regulating device and light distributing system |
| CN106918865A (en) * | 2015-12-28 | 2017-07-04 | 无锡视美乐激光显示科技有限公司 | Guiding device and its projector equipment of application |
| CN108205232A (en) * | 2016-12-19 | 2018-06-26 | 海信集团有限公司 | A kind of optical tunnel and DLP ray machine lighting systems |
| CN111077677A (en) * | 2019-12-31 | 2020-04-28 | 北京灵犀微光科技有限公司 | Lighting device |
-
2006
- 2006-01-20 CN CN 200620054233 patent/CN2891006Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314064A (en) * | 2011-08-25 | 2012-01-11 | 北京亚视创业科技发展有限公司 | Composite light tunneling used for projector (projection apparatus) |
| CN103323951A (en) * | 2013-04-04 | 2013-09-25 | 深圳市绎立锐光科技开发有限公司 | Light distributing rod regulating device and light distributing system |
| CN103323951B (en) * | 2013-04-04 | 2015-06-24 | 深圳市绎立锐光科技开发有限公司 | Light distributing rod regulating device and light distributing system |
| CN106918865A (en) * | 2015-12-28 | 2017-07-04 | 无锡视美乐激光显示科技有限公司 | Guiding device and its projector equipment of application |
| CN108205232A (en) * | 2016-12-19 | 2018-06-26 | 海信集团有限公司 | A kind of optical tunnel and DLP ray machine lighting systems |
| CN108205232B (en) * | 2016-12-19 | 2019-07-30 | 海信集团有限公司 | A kind of optical tunnel and DLP ray machine lighting system |
| CN111077677A (en) * | 2019-12-31 | 2020-04-28 | 北京灵犀微光科技有限公司 | Lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20070418 Termination date: 20110120 |