CN200941144Y - Multi-source illuminator - Google Patents
Multi-source illuminator Download PDFInfo
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- CN200941144Y CN200941144Y CN 200620097430 CN200620097430U CN200941144Y CN 200941144 Y CN200941144 Y CN 200941144Y CN 200620097430 CN200620097430 CN 200620097430 CN 200620097430 U CN200620097430 U CN 200620097430U CN 200941144 Y CN200941144 Y CN 200941144Y
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- light
- light beam
- reflective mirror
- light source
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Abstract
The utility model puts forward a multi-light-source illuminating device, which comprises at least two power supplies, the light beam axis outputted by the power supply forms a certain angle with each other and intersect mutually, the intersection or the neighborhood is provided with the reflector or the small reflector with open holes in the center, which are used for synthesizing the light beams from the power supply; at the position of the reflector or the small reflector, the beam size for one of the light source is smaller than the beam size from other light sources. The device has simple structure, high light use efficiency, and good reliability.
Description
Technical field
The utility model relates to a kind of lighting device that uses a plurality of light sources to throw light on simultaneously, can be widely used in being specially adapted in the projection arrangement in the various lamp optical systems.
Background technology
The application of shadow casting technique more and more widely has LCD, the DLP technology used, and also has to use to resemble this new technique of LCOS.Though the technology of using is varied, all be unable to do without lighting device, having only by lighting device provides enough illuminations, just can provide projected image limpid in sight.Now the projector that uses uses high-power lighting source for sufficient illumination is provided more, the UHP bulb that provides as PHILIPS company.Yet because the raising of power, reduce the serviceable life of bulb greatly, and brightness descends very fast, user's frequent more changing the bulb of having to.And single lighting source may be owing to the fault of burst, and projector can extinguish suddenly, and influence is used normally, and especially in some important occasions, the fault of this burst is not allowed, so the automatic switching control equipment of light source is developed.Yet the switching of light source also needs the regular hour sooner, may need a few minutes projection picture of publishing picture again, still occurs the phenomenon that projected image lacks midway.In order to address these problems, use the lighting device of a plurality of light sources to be developed simultaneously, it is by synthesizing stack with the luminous energy of a plurality of light source outputs, utilize lower powered bulb that the illumination of high brightness can be provided, prolong the life-span of bulb, and, when some light sources break down when extinguishing, still can provide certain illumination, satisfy the demand that projected image uninterruptedly is provided.
The utility model content
The purpose of this utility model provides a kind of multiple source lighting fixture, the light beam that it is exported a plurality of light sources by the reflective mirror of perforate in the middle of using is synthesized together, perhaps light beam intersection or near it position one little reflective mirror is installed the light beam of a plurality of light sources output is synthesized together, its system architecture is simple, the optical energy utilization efficiency height, good reliability.
The utility model also provided before light beam is synthetic shaping in advance and synthetic after the device of shaping again.
Multiple source lighting fixture of the present utility model is achieved by the following technical programs.
A kind of multiple source lighting fixture, comprise at least two light sources, it is characterized in that: have a certain degree mutually between the beam axis of described light source output and cross mutually, near the reflective mirror or the little reflective mirror of perforate in described intersection or in the middle of being provided with it is used for the light beam from described light source is synthesized to together; In described reflective mirror or little mirror position, recently the beam size from other light source is little from the beam size of one of them light source.
Described multiple source lighting fixture is characterized in that: the beam convergence of at least one described light source output is on the middle tapping or little reflective mirror of described reflective mirror.
Described multiple source lighting fixture is characterized in that: in described reflective mirror or little mirror position, synthetic preceding light beam is parallel beam or approximate parallel beam.
Described multiple source lighting fixture is characterized in that: the reflective mirror or the little reflective mirror of perforate can be the plane, sphere or aspheric in the middle of described.
Described multiple source lighting fixture is characterized in that: the light beam of described light source output before synthetic through the shaping in advance of optical element, to constitute the synthetic of light beam or to help the shaping again of synthetic back light beam.
Described multiple source lighting fixture is characterized in that: described multiple light courcess is placed according to parallel axes, and the light beam of its output is turned back through light beam and is in certain angle after element is turned back and crosses.The described light beam element of turning back comprises reflective mirror or prism, and it can be the plane, sphere or aspheric, realizes the shaping in advance of light beam when finishing light beam and turning back.
Described multiple source lighting fixture is characterized in that: the light beam of described light source output is after synthetic, by the shaping optical system shaping and output in the optical devices that need to throw light on.
Described multiple source lighting fixture, it is characterized in that: described shaping optical system comprises the special optical element, described special optical element can be fly's-eye lens, variable refractivity optical element, annular compound lens, rib-loop lens, light cone, microchannel plate, fibre bundle etc., to improve the consistance of synthetic light beam.
The multiple source lighting fixture that the utility model proposes comprises the light source of a plurality of light energy outputs, and the light beam of their output has a certain degree mutually, and near light beam intersection or its, the reflective mirror of perforate is synthesized to them together in the middle of utilizing; Perhaps utilize little reflective mirror that light beam is synthesized together.Light beam after synthetic is through being delivered to after the follow-up optical element shaping in the device that needs illumination.The reflective mirror of perforate or little reflective mirror also can utilize optical element to light beam shaping in advance before synthetic light beam in the middle of described, with the realization that helps synthesizing or improve synthetic efficient.Also can be in the practical application with a plurality of light sources according to the parallel placement of optical axis, utilize optical element that the light beam structure of their output is had a certain degree then with the beam functions of turning back after again by synthetic with upper type.
Compare with other similar device, the utlity model has the characteristics of luminous energy combined coefficient height, simple in structure, good reliability.In the system design of reality, the luminous energy that can guarantee the output of some light sources being utilized very improved the optical energy utilization efficiency of this lighting source.
Description of drawings
Fig. 1 is an a projection arrangement optical texture synoptic diagram commonly used at present;
Fig. 2 is one of a utility model scheme principle schematic;
Fig. 3 is two principle schematic of the utility model scheme;
Fig. 4 is the structural representation of one of embodiment of the present utility model;
Fig. 5 is two the structural representation of embodiment of the present utility model;
Fig. 6 is three the structural representation of embodiment of the present utility model;
Fig. 7 is four the structural representation of embodiment of the present utility model;
Fig. 8 is five the structural representation of embodiment of the present utility model;
Fig. 9 is six the structural representation of embodiment of the present utility model;
Figure 10 is seven the structural representation of embodiment of the present utility model;
Figure 11 is eight the structural representation of embodiment of the present utility model;
Figure 12 is nine the structural representation of embodiment of the present utility model;
Figure 13 is ten the structural representation of embodiment of the present utility model;
Figure 14 is 11 the structural representation of embodiment of the present utility model;
Figure 15 is 12 the structural representation of embodiment of the present utility model;
Embodiment
Below in conjunction with accompanying drawing and example the utility model is elaborated.
Fig. 1 has showed a projection arrangement optical structure chart commonly used at present, wherein, the 1st, light source, the 2nd, optical tunnel, the 3rd, relay len group, the 4th, video picture set of devices, the 5th, projection lens.After the light beam of light source output is handled through optical tunnel, throw light on the video picture set of devices by the amplification of relay len group, the image that the video picture set of devices shows is gone out through projection lens projects again.
Fig. 2 provides one of basic structure of the present utility model.Light source 1 and 1 ' is two light sources, the axis that they is positioned to output beam is angled mutually, an angle of 90 degrees normally, the 6th, the middle reflective mirror that has aperture, its middle perforate is placed on the convergent point of light source 1 output beam or near it, the light beam of light source 1 output can be passed through from aperture.The light beam of light source 1 ' output is divergent shape and shines on the reflective mirror 6, light beam in 1 output of this and light source crosses, reflection through reflective mirror 6, the light beam of light source 1 ' output is synthesized to the light beam of light source 1 output, and the light beam after shaping optical element 7 will synthesize is delivered to the porch of optical tunnel 2 again after the shaping.Other follow-up optical element is omitted (down together).
The light beam of light source 1 ' output also can be to be the convergence shape to shine on the reflective mirror 6, such as with light source 1 ' the more close reflective mirror 6, allows the light beam of light source 1 ' output just project on the reflective mirror 6 before convergence.In fact, as long as bore is enough big when the light beam of light source 1 ' output shines on the reflective mirror 6, not that the situation that converges to any just can be finished synthesizing of light beam.And bore is big more, and optical energy loss is more little.
Angle between light source 1 and 1 ' the output beam axis also can not be 90 degree, and is above-mentioned synthetic just passable as long as their angle is enough to realize.
Fig. 3 provides another kind of basic structure of the present utility model.Light source 1 and 1 ' is two light sources, the axis of their output beams becomes certain degree angle mutually, an angle of 90 degrees normally, the 8th, be placed on the little reflective mirror that two light beams intersect and locate, the convergent point of light source 1 ' drop on the little reflective mirror or near, through the reflection of too small reflective mirror, the output beam of light source 1 ' is synthesized to the light beam of light source 1 output.The position of little reflective mirror 8 can not be at the convergent point place of light source 1 output beam, and will be placed on the place ahead or the rear of convergent point, preferably is placed on the bigger slightly position of light source 1 output beam bore, to improve the utilization ratio of light source 1 output beam.Light beam after shaping optical element 7 will synthesize is delivered to the porch of optical tunnel 2 again after the shaping.
Little reflective mirror 8 can be the plane, sphere or aspheric reflective mirror.It can be placed on the intersection or near the position it of light beam.
Here light source 1 and light source 1 ' all are the light sources of output convergent beam, and they also can be output divergent beams or parallel beams in the use, only need by optical element the beam shaping of output be arrived needed state before synthetic and get final product carrying out light beam.See the following examples.
The optical element that light beam after synthetic is carried out shaping can be knockdown (as concentric circular ring type formula), or special optical element 7, as fly's-eye lens, variable refractivity optical element, annular compound lens, rib-loop lens, light cone, microchannel plate, fibre bundle etc., to improve the consistance of synthetic light beam.
Figure 4 shows that one of embodiment of the present utility model, this embodiment is on the basis of basic structure one, and the shaping optical element of synthetic back light beam has used the design of combination.Designed lens combination 10 on the position of beam axis, it converges to the light beam of light source 1 output the porch of optical tunnel 2 again.The 9th, the optical element of circular ring type, the beam convergence that it goes out light source 1 ' is to the porch of optical tunnel 2.
Figure 5 shows that two of embodiment of the present utility model, this embodiment is on the basis of basic structure two, the shaping optical element of synthetic back light beam has used the design of combination, designed lens combination 10 on the position of beam axis, it converges to the light beam of light source 1 ' output the porch of optical tunnel 2 again.The 9th, the optical element of circular ring type, it is with the beam convergence of the light source 1 output porch to optical tunnel 2.
Figure 6 shows that three of embodiment of the present utility model, this embodiment is transformed to nonspherical reflector 11 with reflective mirror 6 on the basis of basic structure one, and the shaping optical element 12 after at this moment light beam synthesizes has also been done corresponding design alteration.
Figure 7 shows that four of embodiment of the present utility model, this embodiment is replaced by light source 1 ' light source 1 that output beam is a directional light on the basis of basic structure one "; 13 is the reflective mirror of middle perforate; 14 are the shaping optical element of light beam after synthetic, and the beam convergence after it will synthesize is to the porch of optical tunnel 2.
Figure 8 shows that five of embodiment of the present utility model, this embodiment is that the light beam of on the basis of basic structure two light source 1 being exported carries out shaping in advance by optical element 16, and then carry out light beam and synthesize, 17 are the shaping optical element of light beam after synthetic, and the beam convergence after it will synthesize is to the porch of optical tunnel 2.
Figure 9 shows that six of embodiment of the present utility model, this embodiment is replaced by light source 1 that output beam is a directional light with light source 1 on the basis of embodiment four, and the light beam of its output carries out shaping in advance by optical element 15, and then carries out light beam and synthesize.All the other are with embodiment four.
Figure 10 shows that seven of embodiment of the present utility model, this embodiment is with light source 1 on the basis of embodiment six " place side by side with light source 1 ; the axis of their output beams is parallel to each other; utilize reflective mirror 18 then with light source 1 " output beam turns back, itself and light source 1 output beam are had a certain degree (as 90 degree), and then carry out light beam and synthesize.
Figure 11 shows that eight of embodiment of the present utility model, this embodiment places light source 1 ' and light source 1 on the basis of embodiment one side by side, the axis of their output beams is parallel to each other, utilize nonspherical reflector 19 light source 1 ' output beam to be turned back and convergence once more then, the axis of itself and light source 1 output beam is had a certain degree (as 90 degree), and then it is synthetic to carry out light beam.
Figure 12 shows that nine of embodiment of the present utility model, this embodiment is on the basis of embodiment seven, selects for use the light beam after variable refractivity optical element 20 will synthesize fully to merge, and then beam convergence is arrived the porch of optical tunnel 2 by condenser 21.
Figure 13 shows that ten of embodiment of the present utility model, this embodiment is on the basis of embodiment nine, select for use light cone 22 to substitute variable refractivity optical element 20, the light beam after light cone 22 will synthesize carries out convergent-divergent, and then beam convergence is arrived the porch of optical tunnel 2 by condenser 23.
Figure 14 shows that 11 of embodiment of the present utility model, this embodiment is on the basis of embodiment four, the light beam of light source 1 output carries out shaping in advance by optical element 26, with beam shaping is parallel beam or near parallel beam, utilizing the centre be positioned over light beam intersection the reflective mirror 24 of perforate to be arranged then with this light beam and light source 1 " light beam of output (parallel beam or near parallel beam) synthesizes, and the beam convergence after will synthesizing by condenser 25 again is to the porch of optical tunnel 2.
Figure 15 shows that 12 of embodiment of the present utility model, this embodiment is on the basis of basic structure two, light source 1 is replaced by light source 1 of output parallel beam, the light beam of light source 1 ' output carries out shaping in advance by optical element 26, with beam shaping is parallel beam or near parallel beam, utilize the little reflective mirror 27 that is positioned over light beam intersection that the light beam of this light beam and light source 1 output is synthetic then, the beam convergence after will synthesizing by condenser 25 again is to the porch of optical tunnel 2.
Also can not use optical element 26 in the present embodiment, and little reflective mirror 27 is replaced by reflective mirror sphere or aspheric, by this reflective mirror in the synthetic light beam of reflection is parallel beam or near parallel beam with the beam shaping of light source 1 ' output, this spline structure is simpler, but production cost can be higher.
In an embodiment, the light beam of described light source output can be a convergence type, also can be divergence form or parallel beam, as long as it is shaped into needed light beam pattern by shaping element in advance.In embodiment 11 and 12, the optical element of shaping in advance also can amplify the bore of light beam, so that it satisfies synthetic needed beam size difference.
Claims (8)
1, a kind of multiple source lighting fixture, comprise at least two light sources, it is characterized in that: have a certain degree mutually between the beam axis of described light source output and cross mutually, near the reflective mirror or the little reflective mirror of perforate in described intersection or in the middle of being provided with it is used for the light beam from described light source is synthesized to together; In described reflective mirror or little mirror position, recently the beam size from other light source is little from the beam size of one of them light source.
2, multiple source lighting fixture according to claim 1 is characterized in that: the beam convergence of at least one described light source output is on the middle tapping or little reflective mirror of described reflective mirror.
3, multiple source lighting fixture according to claim 1 is characterized in that: in described reflective mirror or little mirror position, synthetic preceding light beam is parallel beam or approximate parallel beam.
4, according to claim 1 or 2 or 3 described multiple source lighting fixtures, it is characterized in that: the reflective mirror or the little reflective mirror of perforate can be the plane, sphere or aspheric in the middle of described.
5, according to claim 1 or 2 or 3 described multiple source lighting fixtures, it is characterized in that: the light beam of described light source output before synthetic through the shaping in advance of optical element, to constitute the synthetic of light beam or to help the shaping again of synthetic back light beam.
6, according to claim 1 or 2 or 3 described multiple source lighting fixtures, it is characterized in that: described multiple light courcess is placed according to parallel axes, and the light beam of its output is turned back through light beam and is in certain angle after element is turned back and crosses.The described light beam element of turning back comprises reflective mirror or prism, and it can be the plane, sphere or aspheric, realizes the shaping in advance of light beam when finishing light beam and turning back.
7, according to claim 1 or 2 or 3 described multiple source lighting fixtures, it is characterized in that: the light beam of described light source output is after synthetic, by the shaping optical system shaping and output in the optical devices that need to throw light on.
8, multiple source lighting fixture according to claim 7, it is characterized in that: described shaping optical system comprises the special optical element, described special optical element can be fly's-eye lens, variable refractivity optical element, annular compound lens, rib-loop lens, light cone, microchannel plate, fibre bundle etc., to improve the consistance of synthetic light beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097430 CN200941144Y (en) | 2006-06-27 | 2006-06-27 | Multi-source illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097430 CN200941144Y (en) | 2006-06-27 | 2006-06-27 | Multi-source illuminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941144Y true CN200941144Y (en) | 2007-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620097430 Expired - Fee Related CN200941144Y (en) | 2006-06-27 | 2006-06-27 | Multi-source illuminator |
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| Country | Link |
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| CN (1) | CN200941144Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571664B (en) * | 2008-05-02 | 2011-03-16 | 精工爱普生株式会社 | Illumination apparatus, projector, and illumination method |
-
2006
- 2006-06-27 CN CN 200620097430 patent/CN200941144Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571664B (en) * | 2008-05-02 | 2011-03-16 | 精工爱普生株式会社 | Illumination apparatus, projector, and illumination method |
| US8496335B2 (en) | 2008-05-02 | 2013-07-30 | Seiko Epson Corporation | Illumination apparatus, projector, and illumination method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |