CN1782862A - Illuminating device and projection type video display apparatus - Google Patents
Illuminating device and projection type video display apparatus Download PDFInfo
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- CN1782862A CN1782862A CN 200510120269 CN200510120269A CN1782862A CN 1782862 A CN1782862 A CN 1782862A CN 200510120269 CN200510120269 CN 200510120269 CN 200510120269 A CN200510120269 A CN 200510120269A CN 1782862 A CN1782862 A CN 1782862A
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Abstract
To provide an illuminator capable of making the loss of respective color light beams from respective light sources as small as possible, and a projection type video display device. The projection type video display device 6 is equipped with three LED arrays 1R (emitting red light), 1G (emitting green light) and 1B (emitting blue light). Time division mirrors 2A and 2B arranged in cross shape for guiding the light beams from the respective LED arrays into a rod integrator 3 is provided on the light incident side of the rod integrator 3. Then, a time division mirror 11 is provided on the light emitting side of the LED array 1R, and a time division mirror 12 is provided on the light emitting side of the LED array 1B. The time division mirror switches reflection and transmission according to the application of voltage. The reflection and the transmission of the time division mirror are switched in the time division lighting timing of the LED arrays 1R, 1G and 1B, and also a video signal for each color video is supplied in a time-division manner on a liquid crystal display panel 4.
Description
Technical field
The present invention relates to a kind of lighting device and projection-type image display device.
Background technology
Employed lighting device in the liquid crystal projection apparatus etc. constitutes generally by lamps such as extra-high-pressure mercury vapour lamp, metal halide mercury vapor lamp, xenon lamps, and with the parallel photochemical parabolic reflector of their irradiates light.In addition, in the above-mentioned lighting device, in order to alleviate the light quantity inequality of shadow surface, and has the integrating function that constitutes by a pair of fly's-eye lens (will sample form a plurality of field of illuminations of given shape planar, the function of overlapping optically focused on the lighting object thing by optical device).In addition, in recent years, also attempt light emitting diode (LED) as light source (with reference to patent documentation 1,2).In addition, also having proposed will be from the red light of red LED, from the green light of green LED and from the blue light of blue led, uses lead the respectively formation of desired direction of cross dichronic mirror.
As shown in Figure 8, each dichronic mirror in the cross dichronic mirror 102 is made of from the dichronic mirror 102B of the blue light of blue led 100B dichronic mirror 102A, the reflection of reflection from the red light of red LED 100R.From the red light of red LED 100R, 102A reflects by dichronic mirror, imports to excellent integrator (rod integrator) 103.From the blue light of blue led 100B, 102B reflects by dichronic mirror, imports to excellent integrator 103.In addition, from the green light of green LED 100G, transmission from dichronic mirror 102A and dichronic mirror 102B imports in the excellent integrator 103.But, dichronic mirror 102A and dichronic mirror 102B, as shown in Figure 9, will be from the part reflection of the green light of green LED 100G.Also promptly, in the lighting device that uses cross dichronic mirror 102 to be constituted, as shown in figure 10, exist green light to be cut off, thereby green light fully forwards can't be imported this problem.
Patent documentation 1: the spy opens flat 10-186507 number
Patent documentation 2: the spy opens 2002-189263 number
Summary of the invention
The present invention proposes at above-mentioned problem in the past just, and its purpose is to provide a kind of lighting device and projection-type image display device that can as far as possible reduce from the loss of the coloured light of light source.
Lighting device of the present invention in order to address the above problem, is characterized in that, has: the light source of the light source of outgoing red light, outgoing green light, the light source of outgoing blue light; The control gear of lighting of described 3 light sources is lighted in timesharing successively; Timesharing optics switching device, it be in order will to be provided with to same direction or roughly same direction from the photoconduction of each light source, can have or not to come toggle reflections and transmission by what voltage loaded; The element control gear, it allows described timesharing optics switching device be in reflective condition when given light source igniting, when other given light source ignitings, allows described timesharing optics switching device be in transmissive state; Light integrators, it will be from the light intensity homogenising of described each light source institute incident; And reflecting mechanism, it is arranged on the light exit side of two light sources in described 3 light sources, is to allow each transmittance from these two light sources by optical design or controlling Design, in addition, and will be from the light reflection of another light source.
In addition, lighting device of the present invention is characterised in that to have: the light source of the light source of outgoing red light, outgoing green light, the light source of outgoing blue light; The control gear of lighting of described 3 light sources is lighted in timesharing successively; Timesharing optics switching device, it be in order will to be provided with to same direction or roughly same direction from the photoconduction of each light source, can switch diffraction and transmission by voltage having or not of loading; The element control gear, it allows described timesharing optics switching device be in diffraction state when given light source igniting, when other given light source ignitings, allows described timesharing optics switching device be in transmissive state; Light integrators, it will be from the light intensity homogenising of described each light source institute incident; And reflecting mechanism, it is arranged on the light exit side of two light sources in described 3 light sources, is to allow each transmittance from these two light sources by optical design or controlling Design, in addition, and will be from the light reflection of another light source.In addition, in this part, above-mentioned two formations are called the 1st constitute.
If adopt the above-mentioned the 1st to constitute, just can not use the cross dichronic mirror, and will be from the same or roughly same direction of coloured light guiding of each light source, thus can avoid loss from the coloured light of light source as far as possible.
In above-mentioned the 1st formation, can allow above-mentioned timesharing optics switching device be the crosswise setting, with this criss-cross timesharing optics switching device of two light source clampings, and mutually in the face of being provided with, simultaneously, the opposite side of the above-mentioned crosswise timesharing of clamping optics switching device is provided with above-mentioned light integrators and another light source, in addition, light exit side at above-mentioned two light sources, as above-mentioned reflecting mechanism, the timesharing mirror that has or not to come toggle reflections and transmission that can load by voltage, be arranged on same of the side of above-mentioned light integrators or roughly same on, the control of switching on makes above-mentioned timesharing mirror become reflective condition when above-mentioned another light source igniting.
In addition, in the 1st formation, can allow above-mentioned timesharing optics switching device be the crosswise setting, with this criss-cross timesharing optics switching device of two light source clampings, and mutually in the face of being provided with, simultaneously, the opposite side of the above-mentioned crosswise timesharing of clamping optics switching device is provided with above-mentioned light integrators and another light source, in addition, and at the light exit side of above-mentioned two light sources, as above-mentioned reflecting mechanism, with dichronic mirror be arranged on same of the side of above-mentioned light integrators or roughly same on.
In addition, these the 1st constitute and during subordinate constitutes, and can allow above-mentioned another light source be the light source of outgoing green light.
In addition, in the 1st formation, can allow excellent integrator as above-mentioned light integrators with tubular or column, above-mentioned timesharing optics switching device is arranged on the end face of above-mentioned excellent integrator, the 1st dichronic mirror is set as above-mentioned reflecting mechanism in the side of above-mentioned excellent integrator, the 2nd dichronic mirror is set as above-mentioned reflecting mechanism in the another side of above-mentioned excellent integrator, set light source is set to its primary optical axis towards above-mentioned end face on above-mentioned the 1st dichronic mirror, set light source is set to its primary optical axis towards above-mentioned end face on above-mentioned the 2nd dichronic mirror, on above-mentioned timesharing optics switching device another light source is set and constitutes.In the above-described configuration, also can allow other the light source that on above-mentioned timesharing optics switching device, is provided be the light source of outgoing green light.
In the lighting device of these formations, above-mentioned each light source can be made of one or more solid-state light emitting elements.
In addition, in the lighting device of these formations, can be at the light exit side of above-mentioned light source, be provided with and be used for allowing the unified polarisation converting means of polarization direction of light.Perhaps, at the light exit side of above-mentioned light integrators, be provided with and be used for allowing the unified polarisation converting means of polarization direction of light.
In addition, projection-type image display device of the present invention is characterised in that to have: above-mentioned each described lighting device; Be arranged on the vedio display board of the light exit side of above-mentioned light integrators; Sequential is supplied with the panel driver from video data of all kinds to above-mentioned vedio display board of lighting corresponding to above-mentioned light source; And projection passed through above-mentioned vedio display board and by optical modulation the projection lens of video light.
The invention effect
By the present invention, can play reduction as far as possible from the effect of the loss of the coloured light of light source.
Description of drawings
Fig. 1 is the stereographic map of the summary formation of the projection-type image display device of expression embodiments of the present invention.
Fig. 2 is the key diagram of the configuration example of expression crosswise timesharing mirror.
Fig. 3 is the key diagram of the lighting device of employed embodiments of the present invention in the projection-type image display device of presentation graphs 1.
Fig. 4 is the key diagram of another lighting device of embodiments of the present invention.
Fig. 5 is the key diagram of another lighting device of embodiments of the present invention.
Fig. 6 is the key diagram of another lighting device of embodiments of the present invention.
Fig. 7 is the key diagram with light source of polarisation converting means.
Fig. 8 is the key diagram of conventional illuminating device.
Fig. 9 is the key diagram of expression problem points in the past.
Figure 10 is the key diagram of expression problem points in the past.
Among the figure: the 1-LED array, 2-crosswise timesharing mirror, 2 '-crosswise timesharing diffraction element, 3-rod integrator, 4-display panels, 11-timesharing mirror, 12-timesharing mirror, 21-dichronic mirror, 22-dichronic mirror, 30-timesharing mirror
Embodiment
Contrast Fig. 1 to Fig. 7 describes the lighting device and the projection-type image display device of embodiments of the invention below.
Fig. 1 is the figure of the optical system of the one-board projection-type image display device 6 of expression present embodiment.This projection-type image display device 6 has 3 led array 1R, 1G, 1B (following when really not referring to which led array, as to use symbol " 1 ").Each led array 1 has the structure that LED (light emitting diode) is configured to array-like.The aspect ratio of each led array 1 can be consistent with the aspect ratio of display panels 4 or roughly consistent.Led array 1R outgoing red light, led array 1G outgoing green light, led array 1B outgoing blue light.Led array 1R and led array 1G and led array 1B are controlled by the starting controlling circuit that does not show among the figure, and timesharing is lighted successively.In addition, compare with the situation that continues to light, the light quantity when carrying out pulse and lighting strengthens.
The light incident side of rod integrator 3 is provided with and is used for from the photoconduction of each led array crosswise timesharing mirror (timesharing optics switching device) 2 to same direction or roughly same direction (being the end face of excellent integrator 3 in this case).Between above-mentioned led array 1R and the led array 1B, the above-mentioned crosswise timesharing of clamping mirror 2 and mutually in the face of being provided with.In addition, also be provided with the above-mentioned crosswise timesharing of clamping mirror 2 opposite side excellent integrator 3 and as the led array 1G of another light source.
Light exit side at led array 1R, the side of timesharing mirror (reflecting mechanism) 11 with excellent integrator 3 is arranged on same or roughly same, at the light exit side of led array 1B, the side of timesharing mirror (reflecting mechanism) 12 with excellent integrator 3 is arranged on same or roughly same.Timesharing mirror 11,12 is to allow each light (red light and blue light) transmission from led array 1R, 1B among led array 1R, 1G, the 1B, on the other hand will be from the reflecting mechanism of light (green light) reflection of led array 1G.
The light exit side of rod integrator 3 is provided with display panels 4.Display panels 4 does not have color filter in its structure.The display panels driver that does not show among the figure, the moment of lighting led array 1R, 1G, 1B with as above timesharing successively is synchronous, supplies with vision signal of all kinds to display panels 4.
The modulated light (video light) by transmission from display panels 4 is amplified projection by projection lens 5, on the screen that Projection Display does not show in the drawings.
In addition, if the switch diffraction element for example is highly suitable for the P polarisation, then can be in the stage before switching mirror incident to timesharing, unified is the P polarisation.Will be explained below about this formation.
Shown lighting control, constituting the content of the reflection/transmission switching controls of the reflection/transmission switching controls of the timesharing mirror 2A of crosswise timesharing mirror 2 and timesharing mirror 2B and timesharing mirror 11,12 of led array 1R, 1G, 1B among Fig. 3.In addition, among this figure, represent lighting of LED, represent to extinguish by blacking by blank figure.In addition, represent reflective condition in the timesharing mirror, represent transmissive state by a dotted line by solid line.
Shown in Fig. 3 (a), when led array 1R is lighted, allow timesharing mirror 2B and timesharing mirror 11 be in transmissive state.In addition, allow timesharing mirror 2A be in reflective condition.Red light from led array 1R is reflected by timesharing mirror 2A, imports in the excellent integrator 3.In addition, timesharing mirror 12 is in transmissive state in the drawings, but also can make it be in reflective condition.
Shown in Fig. 3 (b), when led array 1G is lighted, allow timesharing mirror 2A and timesharing mirror 2B be in transmissive state.In addition, allow timesharing mirror 11,12 be in reflective condition.Green light transmission from timesharing mirror 2A and timesharing mirror 2B from led array 1G imports in the excellent integrator 3.Like this, when the outgoing green light,, therefore can avoid having the loss of the green light that is easy to produce in the structure in the past of cross dichronic mirror because timesharing mirror 2A and timesharing mirror 2B are transmissive state.In addition, because timesharing mirror 11,12 is in reflective condition, come reflects green by timesharing mirror 11,12, timesharing mirror 11,12 has played the effect of excellent integrator for green light, has therefore improved the homogeneity of light intensity of the exit facet of excellent integrator 3.
Shown in Fig. 3 (c), when led array 1B is lighted, allow timesharing mirror 2A and timesharing mirror 12 be in transmissive state.In addition, allow timesharing mirror 2B be in reflective condition.Blue light from led array 1B is reflected by timesharing mirror 2B, imports in the excellent integrator 3.In addition, timesharing mirror 11 is in transmissive state in the drawings, but also can make it be in reflective condition.
In the above-mentioned configuration example, be provided with crosswise timesharing mirror 2 as timesharing optics switching device, but the present invention is not limited to this, can also use crosswise timesharing diffraction element to be used as timesharing optics switching device.This crosswise timesharing diffraction element can use aforesaid DigiLens as the switch diffraction element (registered trademark) to constitute.
Shown among Fig. 4 use crosswise timesharing diffraction element 2 ' situation under control example, also promptly, shown the lighting control, constitute crosswise timesharing diffraction element 2 of led array 1R, 1G, 1B ' timesharing diffraction element 2 ' A and the content of the reflection/transmission switching controls of the diffraction/transmission switching controls of timesharing diffraction element 2 ' B and timesharing mirror 11,12.In addition, among this figure, also represent lighting of LED, represent to extinguish by blacking by blank figure.In addition, represent diffraction state among timesharing diffraction element 2 ' A, the 2 ' B, represent transmissive state by a dotted line by solid line.Represent reflective condition in the timesharing mirror 11,12 by solid line, represent transmissive state by a dotted line.
Shown in Fig. 4 (a), when led array 1R is lighted, allow timesharing diffraction element 2 ' B and timesharing mirror 11 be in transmissive state.In addition, allow timesharing diffraction element 2 ' A be in diffraction state.Red light diffraction in timesharing diffraction element 2 ' A from led array 1R imports in the excellent integrator 3.In addition, timesharing mirror 12 is in transmissive state in the drawings, but also can make it be in reflective condition.
Shown in Fig. 4 (b), when led array 1G is lighted, allow timesharing diffraction element 2 ' A, 2 ' B be in transmissive state.In addition, allow timesharing mirror 11,12 be in reflective condition.Green light transmission from timesharing diffraction element 2 ' A, 2 ' B from led array 1G imports in the excellent integrator 3.Like this, when the outgoing green light,, therefore can avoid having the loss of the green light that is easy to generate in the structure in the past of cross dichronic mirror because timesharing diffraction element 2 ' A and timesharing diffraction element 2 ' B are transmissive state.In addition, because timesharing mirror 11,12 is in reflective condition, come reflects green by timesharing mirror 11,12, timesharing mirror 11,12 has played the effect of excellent integrator for green light, has therefore improved the homogeneity of light intensity of the exit facet of excellent integrator 3.
Shown in Fig. 4 (c), when led array 1B is lighted, allow timesharing diffraction element 2 ' A and timesharing mirror 12 be in transmissive state.In addition, allow timesharing diffraction element 2 ' B be in diffraction state.Blue light diffraction in timesharing diffraction element 2 ' B from led array 1B imports in the excellent integrator 3.In addition, timesharing mirror 11 is in transmissive state in the drawings, but also can make it be in reflective condition.
Shown another configuration example among Fig. 5.This constitutes, and in the formation of Fig. 3, is provided with dichronic mirror 21 and replaces timesharing mirror 11, is provided with dichronic mirror 22 and replaces timesharing mirror 12.Dichronic mirror 21 transmits red reflect other coloured light.Dichronic mirror 22 transmits blue reflect other coloured light.Under the situation of above-mentioned formation, above-mentioned mirror control circuit can only be controlled crosswise timesharing mirror 2 (timesharing mirror 2A and timesharing mirror 2B).
Shown in Fig. 5 (a), when led array 1R is lighted, allow timesharing mirror 2B be in transmissive state.In addition, allow timesharing mirror 2A be in reflective condition.Red light from led array 1R sees through cross dichronic mirror 21, and 2A reflects by the timesharing mirror, imports in the excellent integrator 3.
Shown in Fig. 5 (b), when led array 1G is lighted, allow timesharing mirror 2A and timesharing mirror 2B all be in transmissive state.Green light transmission from timesharing mirror 2A and timesharing mirror 2B from led array 1G imports in the excellent integrator 3.Like this, when the outgoing green light,, therefore can avoid having the loss of the green light that is easy to generate in the structure in the past of cross dichronic mirror because timesharing mirror 2A and timesharing mirror 2B are transmissive state.In addition, owing to come reflects green by dichronic mirror 21,22, dichronic mirror 21,22 has played the effect of excellent integrator for green light, has therefore improved the homogeneity of light intensity of the exit facet of excellent integrator 3.
Shown in Fig. 5 (c), when led array 1B is lighted, allow timesharing mirror 2A be in transmissive state.In addition, allow timesharing mirror 2B be in reflective condition.From blue light transmission from cross dichronic mirror 22 of led array 1B, 2B reflects by the timesharing mirror, imports in the excellent integrator 3.
In addition, the formation of above-mentioned use cross dichronic mirror 21,22 also goes for the formation shown in Fig. 4 (use crosswise timesharing diffraction element 2 ' formation).In addition, in the formation of above-mentioned Fig. 3, Fig. 4, Fig. 5, also can crosswise timesharing mirror 2 or crosswise timesharing diffraction element 2 ' opposite side (side of timesharing mirror 11,12 is not set, and also is the upside and the downside of the crosswise timesharing mirror 2 among Fig. 1) catoptron is set.In addition, in the formation of above-mentioned Fig. 3, Fig. 4, Fig. 5, also can adopt the integrator that constitutes by a pair of fly's-eye lens to replace excellent integrator 3.
Shown another configuration example among Fig. 6.This is provided with timesharing mirror 30, as timesharing optics switching device in constituting in the end face (light entrance face) of excellent integrator 3.This timesharing mirror 30 will be from the photoconduction of led array 1R, 1B to same direction or roughly same direction (light exit side of excellent integrator 3).On above-mentioned timesharing mirror 30, led array 1G is set.In addition, in this configuration example, dichronic mirror 21,22 is arranged on the side near the excellent integrator 3 of above-mentioned end face one side.In addition, on dichronic mirror 21, be provided with led array 1R, on dichronic mirror 22, be provided with led array 1B. Dichronic mirror 21,22 and led array 1R, 1B not necessarily will be mutually in the face of being provided with.In addition, above-mentioned led array 1R, 1B are set to its primary optical axis towards above-mentioned end face (light entrance face).In addition, the mirror control circuit is only controlled above-mentioned timesharing mirror 30.
Under the situation of using inner face as the hollow stick integrator 3 of minute surface, allowing dichronic mirror 21,22 places are set is not minute surface.In addition, under the situation of using column rod integrator, dichronic mirror 21,22 places are set, also are provided with like that according to emergent light from led array is entered in the rod easily.
Shown in Fig. 6 (a), when led array 1R is lighted, allow timesharing mirror 30 be in reflective condition.See through cross dichronic mirror 21 from the red light of led array 1R, incide in the excellent integrator 3, the timesharing mirror 30 that is set at above-mentioned end face reflects, and interreflection in excellent integrator 3 goes out to shoot out from the exit facet of excellent integrator 3.Red light is folded back reflection in excellent integrator 3, can increase order of reflection, by like this, has improved the homogeneity of the light intensity in the exit facet of excellent integrator 3.
Shown in Fig. 6 (b), when led array 1G is lighted, allow timesharing mirror 30 be in transmissive state.Green light from led array 1G incides in the excellent integrator 3.Because this green light is not covered by any object, therefore almost there is not the loss of green light.In addition, carry out green reflection of light by dichronic mirror 21,22.
Shown in Fig. 6 (c), when led array 1B is lighted, allow timesharing mirror 30 be in reflective condition.From blue light transmission from cross dichronic mirror 22 of led array 1B, incide in the excellent integrator 3, the timesharing mirror 30 that is set at above-mentioned end face reflects, and interreflection in excellent integrator 3 goes out to shoot out from the exit facet of excellent integrator 3.Blue light is folded back reflection in excellent integrator 3, can increase order of reflection, by like this, has improved the homogeneity of the light intensity in the exit facet of excellent integrator 3.
Shown the configuration example that is provided with polarisation converting means 7 at the light exit side of led array 1 among Fig. 7.The elementary cell of polarisation converting means 7 (with the light outgoing portion of each LED big or small corresponding), by two polarisation beam separators (PBS) 7171, and the polarizer (1/2 λ plate) 72 that is arranged on the light exit side of one of them polarisation beam separator 71 constitutes.The polarisation diffusion barrier of each polarisation separation vessel 71 allows the P polarisation pass through, and allows the light path of 90 ° of S polarisation conversion.S polarisation after the light path change is reflected by adjacent polarisation diffusion barrier, by outgoing after the polarizer 72.Because the S polarisation is transformed into P polarisation and outgoing by above-mentioned polarizer 72, therefore in this case, light is nearly all unified to be the P polarisation.
In addition, the polarisation converting means can be set at the light exit side of excellent integrator 3.In this case, the size of the light outgoing portion of polarisation converting means is the twice of the size of the light outgoing portion of excellent integrator 3.Therefore, all shapes of the light exit side of expectation polarisation converting means are roughly consistent with the aspect ratio of liquid crystal panel.In this case, if the aspect ratio of liquid crystal panel is A: B, the vertical-horizontal proportion of the light outgoing portion of then excellent integrator 3 is as becoming A: B/2.In addition, even under the situation of aforesaid use, also can possess the polarisation converting means at its light exit side by the integrator that a pair of fly's-eye lens constituted.
In the configuration example discussed above, led array 1 can have the parallel photochemical lens of using.In addition, led array 1 can use for example led chip to be the array-like setting, and by the model lamp element that lens unit (for example parallel photochemical usefulness) constitutes is set at the light exit side of each led chip.In addition, 1 LED also can be set as each color light source.
In addition, in the above-mentioned configuration example, projection-type image display device 6 has transmission-type liquid crystal display panel 4, but the present invention is not limited to this, also can use reflective liquid crystal panel, can also replace these liquid crystal panels, use the display panel that the micro mirror that forms pixel is driven type respectively.In addition, solid-state light emitting element is not limited in light emitting diode (LED), can also use organic/inorganic electroluminescence etc.
Claims (11)
1. lighting device is characterized in that having:
The light source of the light source of the light source of outgoing red light, outgoing green light, outgoing blue light;
The control gear of lighting of described 3 light sources is lighted in timesharing successively;
Timesharing optics switching device, it be in order will to be provided with to same direction or roughly same direction from the photoconduction of each light source, can have or not to come toggle reflections and transmission by what voltage loaded;
The element control gear, it allows described timesharing optics switching device be in reflective condition when given light source igniting, when other given light source ignitings, allows described timesharing optics switching device be in transmissive state;
Light integrators, it will be from the light intensity homogenising of described each light source institute incident; And
Reflecting mechanism, it is arranged on the light exit side of two light sources in described 3 light sources, is to allow each transmittance from these two light sources by optical design or controlling Design, in addition, will be from the light reflection of another light source.
2. lighting device is characterized in that having:
The light source of the light source of the light source of outgoing red light, outgoing green light, outgoing blue light;
The control gear of lighting of described 3 light sources is lighted in timesharing successively;
Timesharing optics switching device, it be in order will to be provided with to same direction or roughly same direction from the photoconduction of each light source, can switch diffraction and transmission by voltage having or not of loading;
The element control gear, it allows described timesharing optics switching device be in diffraction state when given light source igniting, when other given light source ignitings, allows described timesharing optics switching device be in transmissive state;
Light integrators, it will be from the light intensity homogenising of described each light source institute incident; And
Reflecting mechanism, it is arranged on the light exit side of two light sources in described 3 light sources, is to allow each transmittance from these two light sources by optical design or controlling Design, in addition, will be from the light reflection of another light source.
3. lighting device as claimed in claim 1 or 2 is characterized in that:
Described timesharing optics switching device is the crosswise setting, with this criss-cross timesharing optics switching device of two light source clampings, and mutually in the face of being provided with, simultaneously, the opposite side of the described crosswise timesharing of clamping optics switching device, described light integrators and another light source are set, in addition, light exit side at described two light sources, as described reflecting mechanism, the timesharing mirror that has or not to come toggle reflections and transmission that can load by voltage, be arranged on same of the side of described light integrators or roughly same on, the control of switching on makes described timesharing mirror become reflective condition when described another light source igniting.
4. lighting device as claimed in claim 1 or 2 is characterized in that:
Described timesharing optics switching device is the crosswise setting, with this criss-cross timesharing optics switching device of two light source clampings, and mutually in the face of being provided with, simultaneously, the opposite side of the described crosswise timesharing of clamping optics switching device is provided with described light integrators and another light source, in addition, at the light exit side of described two light sources, as described reflecting mechanism, with dichronic mirror be arranged on same of the side of described light integrators or roughly same on.
5. as claim 3 or 4 described lighting devices, it is characterized in that:
Described another light source is the light source of outgoing green light.
6. lighting device as claimed in claim 1 is characterized in that:
Excellent integrator with tubular or column is as described light integrators, described timesharing optics switching device is arranged on the end face of described excellent integrator, the 1st dichronic mirror is set as described reflecting mechanism in the side of described excellent integrator, the 2nd dichronic mirror is set as described reflecting mechanism in the another side of described excellent integrator, set light source is set to its primary optical axis towards described end face on described the 1st dichronic mirror, set light source is set to its primary optical axis towards described end face on described the 2nd dichronic mirror, on described timesharing optics switching device another light source is set and constitutes.
7. lighting device as claimed in claim 6 is characterized in that:
The light source that to be arranged on described another light source on the described timesharing optics switching device be the outgoing green light.
8. as each described lighting device in the claim 1～7, it is characterized in that:
Described each light source is made of one or more solid-state light emitting elements.
9. as each described lighting device in the claim 1～8, it is characterized in that:
At the light exit side of described light source, be provided with and be used for allowing the unified polarisation converting means of polarization direction of light.
10. as each described lighting device in the claim 1～8, it is characterized in that:
At the light exit side of described light integrators, be provided with and be used for allowing the unified polarisation converting means of polarization direction of light.
11. a projection-type image display device is characterized in that:
Have: as each described lighting device in the claim 1～10; Be arranged on the vedio display board of the light exit side of described light integrators; Sequential is supplied with the panel driver from video data of all kinds to described vedio display board of lighting corresponding to described light source; And projection passed through described vedio display board and by optical modulation the projection lens of video light.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004326921A JP4194548B2 (en) | 2004-11-10 | 2004-11-10 | Illumination device and projection display device |
| JP2004-326921 | 2004-11-10 | ||
| JP2004326921 | 2004-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1782862A true CN1782862A (en) | 2006-06-07 |
| CN1782862B CN1782862B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510120269 Expired - Fee Related CN1782862B (en) | 2004-11-10 | 2005-11-09 | Illuminating device and projection type video display apparatus |
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|---|---|
| JP (1) | JP4194548B2 (en) |
| CN (1) | CN1782862B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004379A (en) * | 2009-08-28 | 2011-04-06 | 三洋电机株式会社 | Video projector and image display system |
| CN102445830A (en) * | 2010-10-05 | 2012-05-09 | 江国庆 | Color image projection device and image projection method thereof |
| CN103582931A (en) * | 2011-06-10 | 2014-02-12 | 应用材料公司 | Pulse circulator |
| CN103649818A (en) * | 2011-07-15 | 2014-03-19 | 皇家飞利浦有限公司 | Luminaire emitting light of different colours |
| CN104375279A (en) * | 2010-06-17 | 2015-02-25 | 精工爱普生株式会社 | Projector |
| CN107656415A (en) * | 2017-11-24 | 2018-02-02 | 北京速镭视激光科技有限公司 | A kind of efficient, even light shaping illuminator of high uniformity passive beam |
| CN110082998A (en) * | 2018-01-25 | 2019-08-02 | 深圳光峰科技股份有限公司 | Laser Multiplexing apparatus and display equipment |
| CN110824717A (en) * | 2018-08-10 | 2020-02-21 | 青岛海信激光显示股份有限公司 | Light combination device, laser light source and laser equipment |
| WO2020114199A1 (en) * | 2018-12-04 | 2020-06-11 | 深圳市绎立锐光科技开发有限公司 | Illumination light source and vehicle lamp |
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| JP2008020636A (en) * | 2006-07-12 | 2008-01-31 | Sharp Corp | Light source device and video display apparatus |
| JP4930877B2 (en) * | 2006-09-26 | 2012-05-16 | パナソニック株式会社 | Light emitting device and lighting apparatus |
| KR100925720B1 (en) * | 2007-02-20 | 2009-11-10 | 재단법인대구경북과학기술원 | Projection display having dual mode function |
| US8297758B2 (en) | 2007-02-20 | 2012-10-30 | Daegu Gyeongbuk Institute Of Science And Technology | Multimedia player displaying 2 projection images |
| JP2009086057A (en) * | 2007-09-27 | 2009-04-23 | Citizen Electronics Co Ltd | Projection display device |
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|---|---|---|---|---|
| US5619284A (en) * | 1995-01-17 | 1997-04-08 | Philips Electronics North America Corporation | Beam combiner for LCD projector utilizing a penta-prism |
| US6139166A (en) * | 1999-06-24 | 2000-10-31 | Lumileds Lighting B.V. | Luminaire having beam splitters for mixing light from different color ' LEDs |
-
2004
- 2004-11-10 JP JP2004326921A patent/JP4194548B2/en not_active Expired - Fee Related
-
2005
- 2005-11-09 CN CN 200510120269 patent/CN1782862B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004379A (en) * | 2009-08-28 | 2011-04-06 | 三洋电机株式会社 | Video projector and image display system |
| CN102004379B (en) * | 2009-08-28 | 2012-07-25 | 三洋电机株式会社 | Video projector and image display system |
| CN104375279A (en) * | 2010-06-17 | 2015-02-25 | 精工爱普生株式会社 | Projector |
| CN102445830A (en) * | 2010-10-05 | 2012-05-09 | 江国庆 | Color image projection device and image projection method thereof |
| CN103582931A (en) * | 2011-06-10 | 2014-02-12 | 应用材料公司 | Pulse circulator |
| CN103649818A (en) * | 2011-07-15 | 2014-03-19 | 皇家飞利浦有限公司 | Luminaire emitting light of different colours |
| CN107656415A (en) * | 2017-11-24 | 2018-02-02 | 北京速镭视激光科技有限公司 | A kind of efficient, even light shaping illuminator of high uniformity passive beam |
| CN110082998A (en) * | 2018-01-25 | 2019-08-02 | 深圳光峰科技股份有限公司 | Laser Multiplexing apparatus and display equipment |
| US11815698B2 (en) | 2018-01-25 | 2023-11-14 | Appotronics Corporation Limited | Laser combining apparatus and display device |
| CN110824717A (en) * | 2018-08-10 | 2020-02-21 | 青岛海信激光显示股份有限公司 | Light combination device, laser light source and laser equipment |
| WO2020114199A1 (en) * | 2018-12-04 | 2020-06-11 | 深圳市绎立锐光科技开发有限公司 | Illumination light source and vehicle lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4194548B2 (en) | 2008-12-10 |
| JP2006138952A (en) | 2006-06-01 |
| CN1782862B (en) | 2010-09-29 |
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