CN101261358B - Projection display device - Google Patents

Projection display device Download PDF

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Publication number
CN101261358B
CN101261358B CN2008100824754A CN200810082475A CN101261358B CN 101261358 B CN101261358 B CN 101261358B CN 2008100824754 A CN2008100824754 A CN 2008100824754A CN 200810082475 A CN200810082475 A CN 200810082475A CN 101261358 B CN101261358 B CN 101261358B
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CN
China
Prior art keywords
light
main body
projection
body housing
2nd side
Prior art date
Application number
CN2008100824754A
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Chinese (zh)
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CN101261358A (en
Inventor
安达隆治
滨田文彦
铃木创
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三洋电机株式会社
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Priority to JP2007055979 priority Critical
Priority to JP2007-055979 priority
Priority to JP2007055979 priority
Priority to JP2007155098A priority patent/JP4901595B2/en
Priority to JP2007155098 priority
Priority to JP2007-155098 priority
Application filed by 三洋电机株式会社 filed Critical 三洋电机株式会社
Publication of CN101261358A publication Critical patent/CN101261358A/en
Application granted granted Critical
Publication of CN101261358B publication Critical patent/CN101261358B/en

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Abstract

The present invention provides a projection display device which can lead to that the light is smoothly and accurately oriented to the projected surface even in the condition of placing arranged. When the bottom side is leaded to face the carried surface and the body case (300) is carried on the carried surface, an arm component (400) which is used for correcting the height difference generated at the bottom side of the body case (300), and the projection light is oriented to the expected direction. The arm component (400) is provided with two adjusting screws (500) which are used for executing fine adjustment to the orienting direction of the light. Through adjusting the projecting amount of two adjusting screws (500), thereby that the projector can rotate along the direction in the X-Z surface and Y-Z surface while a projection (302) is taken as a fulcrum.

Description

Projection type image display apparatus

Technical field

The present invention relates to and to project through the light amplification that display element is modulated by the projection type image display apparatus of projection surface; Especially, be applicable to the image on the display element is imaged between projection lens portion and the catoptron as intermediary image and utilizes reflecting surface to throw the projection type image display apparatus of amplification this intermediary image.

Background technology

Image on the display element (liquid crystal panel etc.) amplified to project by the projection type image display apparatus of projection surface (screen etc.) (below be called " projector ") become commercialized and extensively popularize.In this projector,, proposed to take the projector of the structure of projection in order to shorten the distance between screen and the projector main body; Promptly; Carry out the wide-angleization of projection optics system, and, also make the inclined light shaft of the direct of travel of projection light with respect to projection optics system.

For example; In the invention of following patent documentation 1 record, use wide-angle lens with great visual angle as projection optics system, and; Display element and screen are being moved up with respect to the mutual opposite invention of the optical axis of projection optics system; Thereby projection distance shortens, and, realize not having the inclination projection of distorting.But in this existing invention, owing to need wide-angle lens with great visual angle, rising and the maximization of projector body of cost that therefore is accompanied by the maximization of lens becomes problem.

With respect to this; In the invention of following patent documentation 2 records; Use projection lens unit and catoptron as projection optics system; Image on the display element is imaged between projection lens unit and the catoptron as intermediary image, utilize catoptron to amplify projection this intermediary image, thereby realize the shortening of projection distance.According to this existing invention, realize wide-angleization through the catoptron of smaller curved surface, thus, can suppress the rising of cost and the maximization of projector main body.

In this projector, shown in figure 18, imagine various user modes.In addition, in above-mentioned patent documentation 2 described inventions, shown in figure 19; Because projection lens portion and rows of mirrors are listed in same direction, therefore be arranged on ceiling and placing under the situation about being provided with, light source is towards horizontal direction; But; Under situation about being provided with on the table, light source is towards vertical direction, and the life-span aspect of light source (lamp) has problems.

Patent documentation 1 spy opens flat 05-100312 communique

Patent documentation 2 spies open the 2004-258620 communique

But, in the structure of Figure 19, make through the light of modulation panel optical axis and move in the direction that frames out with respect to projection lens portion (dioptric system); And catoptron (reflecting surface) is being moved with this direction in the opposite direction; But,, panel is moved in the direction near screen relative to the optical axis of projection lens portion (dioptric system) if in contrast; And catoptron (reflecting surface) is being moved with this direction in the opposite direction, then can further advance the wide-angleization of projection light.

But; So; Based on catoptron with respect to the moving of projection lens portion, can bad student's height difference in the side of main body housing, therefore; From this side projector carried to put and carried (the placement setting of Figure 18 (b)) when putting face, producing projector can and can not make light successfully project the such problem of screen cover from inclined.

In addition, this problem can solve through making above-mentioned side not become not the same plane of height difference, but so, can produce following problem,, in main body housing, produces useless dead zone (dead space) that is, the projector main body maximization that becomes.

Summary of the invention

The present invention carries out in order to solve such problem, and its problem is, a kind of projection type image display apparatus is provided, even under situation about place being provided with, also makes fairing sharp and point to by projection surface exactly.

In view of above-mentioned problem, the present invention has following characteristic.

Projection type image display apparatus in the invention of technical scheme 1 is characterised in that to have: main body housing; Projection lens portion, the light after incident is modulated by optical modulation element; And catoptron portion; Will be from the light of said projection lens portion outgoing towards being reflected by projection surface; On said main body housing,, form with the configuration of said projection lens portion and said catoptron portion and move corresponding height difference in the 2nd side of the opposition side of the 1st side that is positioned at the projection mouth that has light relatively; Said projection type image display apparatus also has height difference correction portion; Make the 2nd side put face ground and said main body housing is carried to put said when year being put face, proofread and correct said height difference, making light point to desirable direction from said catoptron portion towards carrying.

Technical scheme 2 is like technical scheme 1 described projection type image display apparatus; It is characterized in that; In said height difference correction portion, be furnished with the adjustment anchor clamps, the pointing direction from the light of said catoptron portion finely tuned thereby these adjustment anchor clamps are used to change the distance of being carried the face of putting in said the 2nd side and said of said main body housing.

Technical scheme 3 is like technical scheme 2 described projection type image display apparatus; It is characterized in that; In said the 2nd side of said main body housing, be furnished with teat at the allocation position of said catoptron portion, adjust said the 2nd side and said being carried that said adjustment anchor clamps change said main body housing and put the distance between the face; Thus, said main body housing is that fulcrum rotates with said teat.

Technical scheme 4 is like technical scheme 3 described projection type image display apparatus; It is characterized in that; Said adjustment anchor clamps to be can constituting different 2 said the 2nd side and the said modes of putting the distance between the face of being carried that change said main body housing, dispose said teat and said adjustment anchor clamps with these 2 modes that are positioned at the vertex of a triangle position with said teat.

Technical scheme 5 is characterized in that like technical scheme 1 to 4 any described projection type image display apparatus, and said adjustment anchor clamps are the adjustment screws that dispose with the mode that leading section contacts with the face of putting in said year.

Technical scheme 6 is like technical scheme 1 to 5 any described projection type image display apparatus; It is characterized in that; Said the 2nd side in said main body housing; Be formed with the screw hole that is used to install said height difference correction portion, when being arranged on ceiling, this screw hole is public to be and the screw hole of screw retention on installing mechanism.

According to the present invention; The 2nd side is carried main body housing to put when year being put face towards carrying with putting face; Because the height difference in that the 2nd side produces is proofreaied and correct through height difference correction portion; Therefore, even when placement is provided with, light from catoptron is pointed to towards by the direction of projection surface exactly.

In addition, as technical scheme 2 to 5 invention, if configuration adjustment anchor clamps and teat then can be finely tuned the projecting direction of light, and can image be throwed exactly.Here, as the invention of technical scheme 5, when using the adjustment screw as the adjustment anchor clamps, proper handling adjustment screw, thus, can be easily and carry out the adjustment of the pointing direction of projection light simply.In addition; As the invention of technical scheme 4,, then can finely tune the pointing direction of projection light at two-dimensional directional if make the application point and the teat of adjustment anchor clamps be positioned at the vertex of a triangle position; And, can be smoothly and carry out the adjustment of the pointing direction of projection light exactly.

And then, as the invention of technical scheme 6,, then can effectively utilize space in the face of said the 2nd side if the screw hole of the screw hole that will be used to install height difference correction portion when being arranged on ceiling is general.In addition, carrying out ceiling when being provided with, owing to do not need height difference correction portion, therefore dismounting height difference correction portion thus, can use these screw holes as the screw hole that is arranged on ceiling.

Effect of the present invention and meaning are clearer through the explanation meeting of the embodiment shown in following.But, an illustration when following embodiment finally also is embodiment of the present invention, the content that the present invention does not receive to put down in writing in the following embodiment fully limits.

Description of drawings

Fig. 1 is the figure (stereographic map) of the inner structure of the projector in the expression embodiment.

Fig. 2 is the figure (vertical view) of the inner structure of the projector in the expression embodiment.

Fig. 3 is the figure (upward view) of the inner structure of the projector in the expression embodiment.

Fig. 4 is the figure (right view) of the inner structure of the projector in the expression embodiment.

Fig. 5 is the figure (left view) of the inner structure of the projector in the expression embodiment.

Fig. 6 is the figure (front elevation) of the inner structure of the projector in the expression embodiment.

Fig. 7 is the figure (rear view) of the inner structure of the projector in the expression embodiment.

Fig. 8 is the figure (stereographic map) of the structure of the projection optics system in the expression embodiment.

Fig. 9 is the figure (sectional view) of the structure of the projection optics system in the expression embodiment.

Figure 10 is the figure of the structure of the light engine in the expression embodiment.

Figure 11 is the figure (stereographic map) of the surface structure of the projector in the expression embodiment.

Figure 12 is the figure (right view) of the surface structure of the projector in the expression embodiment.

Figure 13 is the figure (front elevation) of the surface structure of the projector in the expression embodiment.

Figure 14 is the figure (upward view) of the surface structure of the projector in the expression embodiment.

Figure 15 is arm member in the expression embodiment and the figure that adjusts the structure of screw.

Figure 16 is the figure of the user mode (place and be provided with) of the projector in the expression embodiment.

Figure 17 is the figure of the user mode (place and be provided with) of the projector in the expression embodiment.

Figure 18 is the figure of the user mode of expression projector.

Figure 19 is the figure of explanation prior art.

Embodiment

Below, the structure of the projector in the embodiment is described with reference to accompanying drawing.

Fig. 1 to Fig. 7 is the figure that the inner structure of the projector under the state of exterior case has been omitted in expression.Fig. 1 is the stereoscopic figure of projector, and Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 are respectively vertical view, upward view, right view, left view, front elevation and the rear views of inner structure.In addition, in Fig. 2 to Fig. 7, the structure of the projector under the state of main substrate 40 has been dismantled in expression.In addition, in Fig. 8 and Fig. 9, represent the stereoscopic figure and the sectional view (synoptic diagram) of projection optics system respectively.

Referring to figs. 1 through Fig. 7, projector has light engine 10, projection optics system 20, power supply unit 30, main substrate 40, AV terminal portion 50, suction fan 60, vent fan 70, AC import (inlet) 90.In addition, 80a is the boss from the upper face side casing, and 80b is the boss from the bottom surface side casing, and 80c is the lining that is used for absorbed oscillation.Plate-like portion 205 shown in Figure 8 is clamped between boss 80a, the 80b via two lining 80c, thereby projection optics system 20 is loaded in the casing like Fig. 1, Fig. 2, shown in Figure 3.Owing to projection optics system 20 is held via the lining 80c that is used for absorbed oscillation, therefore impact is difficult to transmit to projection optics system 20.In addition, projection optics system 20 is supported from the boss 80a of upper face side casing and from the boss 80b of bottom surface side casing via the lining 80c that is used for absorbed oscillation, so holding strength improves.

Light engine 10 will separate into the light of blue wave band, green wave band and red wave band from the white light of light source 101; And; By display element (liquid crystal panel) light of each wave band is modulated; And it is synthetic that the light of each wave band after will being modulated by dichroic prism (dichroic prism) carries out color, and light outgoing to the projection optics system 20 after will synthesizing.As shown in Figure 2, light source 101 disposes with the mode to the X-direction irradiates light, and projection optics system 20 is that the mode of Y direction disposes with the optical axis.In addition, with reference to Figure 10 the structure of light engine 10 and the position relation of light engine 10 and projection optics system 20 are described.

30 pairs of light sources 101 of power supply unit and main circuit 40 provide power supply.Via 90 pairs of power supply units of AC import, 30 input AC voltages.Main circuit 40 is the circuit that are used to drive and control projector.That kind as shown in Figure 1, the circuit substrate that keeps main circuit 40 disposes in the upper surface of light engine 10 mode with the part that covers light engine 10.In addition, via 50 pairs of main circuits of AV terminal portion, 40 input AV (Audio Visual) signals.

As Fig. 1 and shown in Figure 3, be furnished with three suction fans 60 at the bottom surface side of light engine 10.Be configured in vent fan 70 (with reference to Fig. 5) and vent fan 70 (with reference to Fig. 7) exhaust that is configured in rear side of the left surface side of light engine 10 by 60 inhaled airs of these suction fans.Configuration suction fan 60 and vent fan 70 so thus, are flowed by the mode of 60 inhaled airs of suction fan with optical system, light source 101 and power supply unit 30 through light engine 10.In addition, institute's inhaled air as Fig. 2, Fig. 3 and shown in Figure 6, import to the side of light source 101 via passage (duct) 61, flow towards vent fan 70 from the side of light source 101.Through flowing of such air, remove the heat that these members produce.

Fig. 8 and Fig. 9 represent the stereoscopic figure and the sectional view of projection optics system.In addition, Fig. 9 is the figure that schematically shows the A-A ' section of Fig. 8.

In the figure, the 201st, the projection lens unit, the 202nd, cover body, the 203rd, dust cap, the 204th, catoptron, the 205th, the catoptron lid, the 206th, light passes through window.

Projection lens unit 201 has: be used to make projection light to be imaged on the lens combination on the intermediate image face; Gearing (actuator), thus be used to make the focus state of part displacement adjustment projects images on optical axis direction of these lens combination.Here, the focusing of projection lens unit 201 adjustment is to serve as that axle carries out control lever (lever) 201a rotation through the optical axis with projection lens unit 201.In addition, this control lever 201a that kind as shown in Figure 8 makes not cover the projection light that is throwed through window 206 from light so that outstanding mode disposes from the side of projecting mirror head unit 201.

Catoptron 204 has the reflecting surface of aspherical shape, projection light wide-angleization that will 201 incidents from the projection lens unit, from light through window 206 to being throwed by projection surface (screen cover).

Projection lens unit 201 is housed in the cover body 202, and, covered by dust cap 203.In addition, catoptron 204 is housed in the catoptron lid 205, the catoptron lid is installed in cover body 202, thereby is installed in cover body 202.

That kind as shown in Figure 9, the synthetic light that is generated by light engine 10 incides projection lens unit 201 in the position from the optical axis deflection Z-direction of projection lens unit 201.The synthetic light of incident incides catoptron 204 owing to projection lens unit 201 receives lensing like this.So, synthetic light mirror 204 wide-angleizations that are reflected, via light through window 206 to being throwed by projection surface (screen cover).

In addition; As above-mentioned; Synthetic light from light engine 10 incides projection lens unit 201 in the position of comparing the deflection Z-direction with the optical axis of projection lens unit 201; Therefore catoptron 204 is as shown in Figure 9, and the mode that moves with the moving direction opposition side from the optical axis direction of projection lens unit 201 and synthetic light disposes.Here, catoptron 204 has the big reflecting surface of lens face than each lens that constitute projection lens unit 201, and therefore, the amount of movement of the optical axis of catoptron 204 relative projection lens unit 201 is bigger.Therefore, at the bottom surface side of projector, as Fig. 4 and shown in Figure 5, produce bigger space G.

Then, with reference to Figure 10, the primary structure of light engine 10 is described.

Light source 101 is made up of lamp (burner) and reflecting body (reflector), and the light that makes almost parallel is to lamp optical system 102 outgoing.Light source 101 is made up of for example extra-high-pressure mercury vapour lamp.Lamp optical system 102 has compound eye integraph, PBS (polarization beam apparatus) array and collector lens; Make the light quantity distribution that incides each coloured light of 106,109,115 o'clock of display element (liquid crystal panel) balanced; And, make polarisation of light direction towards dichronic mirror 103 a direction unanimity.

Dichronic mirror 103 only reflects the light of the blue wave band from the light of lamp optical system 102 incidents (below be called " B light "), and red wave band (below be called " R light ") and green wave band (below be called " G light ") are seen through.Catoptron 104 will be by the B light after dichronic mirror 103 reflections to the direction reflection towards collector lens 105.

105 pairs of B light of collector lens provide lensing, so that B light incides display element 106 with directional light.Signal of video signal according to blueness usefulness drives display element 106, and according to this driving condition B light is modulated.In addition, is furnished with Polarizer (not shown) in the light incident side and the exiting side of display element 106.

Dichronic mirror 107 only reflects the R light that seen through dichronic mirror 103 and the G light in the G light.108 pairs of G light of collector lens provide lensing, so that G light incides display element 109 with directional light.Signal of video signal according to green usefulness drives display element 109, and comes G light is modulated according to this driving condition.In addition, is furnished with Polarizer (not shown) in the light incident side and the exiting side of display element 109.

110,112 pairs of R light of relay lens provide lensing, so that R light is identical for the incident state of display element 106 and 109 with B light and G light for the incident state of display element 115.The light path of catoptron 111,113 change R light imports to display element 115 so that will see through the R light of dichronic mirror 107.

114 pairs of R light of collector lens provide lensing, so that R light incides display element 115 with the state of directional light.Signal of video signal according to redness usefulness drives display element 115, and according to this driving condition R light is modulated.In addition, is furnished with Polarizer (not shown) in the light incident side and the exiting side of display element 115.

B light and R light in B light, G light and the R light after dichroic prism 116 reflections are modulated by display element 106,109,115, and, make the G light transmission, thus, B light, G light and R light are carried out color synthesize.Carry out the light (synthetic light) of color after synthetic as above-mentioned, incide the projection lens unit 201 in the projection optics system 20.And, utilize catoptron 204 carry out wide-angleization, pass through window 206 to being throwed via light by projection surface (screen cover).

As illustrating, light source 101 disposes towards the mode of X-direction with the direction of illumination of light.Configuration light source 101 thus, even light source 101 is arranged on ceiling at projector, placement is provided with and use under any state on the table is set, also always can locate light is shone to horizontal direction like this.

Figure 11 is the figure (stereographic map) of the outward appearance of internal mechanism that expression will the projector shown in Figure 1 projector that is housed in the interior state of casing.In addition, Figure 12, Figure 13 and Figure 14 are respectively right view, rear view and the upward views of projector.

As illustrating, on main body housing 300, in order to proofread and correct the height difference with the corresponding generation of above-mentioned space G (with reference to Fig. 4 and Fig. 5), arm member 400 is loaded in the bottom surface of main body housing.In addition, on this arm member 400, the mode that connects arm member 400 with leading section is loaded two adjustment screws 500.

Is furnished with action button portion 301 at the upper surface of main body housing 300.In addition, in the bottom surface of main body housing 300, is furnished with circular-arc teat 302 at the allocation position of catoptron 204.

Figure 15 is the figure of the loading condition of expression adjustment screw 500 relative arm members 400.Arm member 400 is forming the resin molding on the panel beating of the shape shown in this figure is upper right.On arm member 400, be formed with and be used for four holes 401 of arm member 400 screw retention in the bottom surface of main body housing 300.In addition, the " loaded " position of adjustment screw 500 is with the structure shown in the amplification profile in scheming.

In amplification profile, the 403rd, the core panel beating, the 402, the 404th, at the bottom surface side of core panel beating 303 and the resin of upper face side molding.Integrally formed screw hole on the resin 402 of bottom surface side, the screw member 501 of adjustment screw 500 is twisted and is combined in this screw holes.

Utilize fixing screw 503 will adjust index dial (dial) 502 and be fixed on the screw member 501, thus, constitute adjustment screw 500.In addition, cushion pad (cushion) 504 in the front loading of screw member 501.The outward appearance of adjustment screw 500 is shown in the left end (side view) among the figure.

Shown in figure 14; Four screw hole 303a~303d in the middle of formed screw hole 303a~303i on the bottom surface of hole shown in Figure 15 401 and main body housing 300 are aimed at; And under this state, screw twisted and be incorporated among screw hole 303a~303d, thus, hold-down arm member 400.Here, screw hole 303a~303i is such shown in this figure bottom right, is made up of the embedded nut (insert nut) behind the metal nut 305 of embedding in boss hole 304.

In addition,, use all screw hole 303a~303i using under the situation of projector with the mode that is arranged on ceiling shown in Figure 18 (a), main body housing 300 by screw retention at the installing mechanism that is used to be arranged on ceiling.At this moment, arm member 400 is disassembled from main body housing 300.

To be expression carry the figure that puts being carried the state (place and be provided with) when putting face with projector to Figure 16 from bottom surface side.Under this state, be configured in main body housing 300 the bottom surface circular-arc teat 302 be loaded in arm member 400 on two adjustment screws 500 front end with year put face and contacted.In addition, this state is the minimum state of overhang that makes the bottom surface of adjustment screw 500 relative arm members 400.Under this state, the counter clockwise direction that the upper surface of main body housing 300 is in this figure with respect to level has been rotated the state of predetermined angular.

Make adjustment screw 500 begin to rotate and make adjustment screw 500 from the bottom surface of arm member 400 when further outstanding from the state of this figure, projector is a fulcrum with teat 302, rotates in the clockwise direction.Along with this rotates, the pointing direction of projection light rotates from the state of this figure in the clockwise direction.Figure 17 representes to make adjustment screw 500 with respect to the overhang of the bottom surface of arm member 400 state when maximum.

In addition, make the overhang of two adjustment screws 500 different, thereby projector direction in the face on X-Z plane is rotated, follow, pointing direction direction in the face on X-Z plane of projection light is rotated in this.So; Suitably adjust the overhangs of two adjustment screws 500; Thus; In the face on the turned position that can make projector direction and X-Z plane in the face on Y-Z plane direction the two finely tune, thus, in the face on the pointing direction that can make projection light direction and X-Z plane in the face on Y-Z plane direction the two finely tune.

More than; According to this embodiment; Make bottom surface side put face and main body housing put in 300 years carried when putting on the face, because the height difference that produces at the bottom surface side of main body housing 300 proofreaied and correct by arm member 400, therefore towards carrying; When placement is provided with, projection light is correctly pointed to towards by the direction of projection surface.

In addition, according to this embodiment, suitably adjustment adjustment screw 500 thus, can be finely tuned the projecting direction of light, and can throw image exactly.Here, the adjustment of the projecting direction of light can be carried out through making 500 rotations of adjustment screw, therefore can carry out this adjustment with easy and shirtsleeve operation.And then according to this embodiment, the application point and the teat 302 of two adjustment screws 500 are configured in the vertex of a triangle position, therefore, as above-mentioned, can finely tune the pointing direction of projection light at two-dimensional directional.

In addition, in this embodiment, the screw hole when being used for the screw hole 303a~303d of hold-down arm member 400 and being arranged on ceiling is general, therefore can effectively utilize the space of main body housing 300 bottom surfaces.In addition, when being arranged on ceiling, owing to do not need arm member 400, therefore, dismounting arm member 400 thus, can make these screw holes 303a~303d use as the screw hole that ceiling is provided with usefulness.

In addition, in this embodiment, because arm member 400 forms by panel beating, therefore when the carrying of projector etc., even hold arm member 400, arm member also can breakage.In addition, as above-mentioned, screw retention thus, is carried out the loading of arm member 400 on the higher embedded nut of physical strength, has removed projector even if therefore hold arm member 400, and arm member 400 can not come off from projector yet.Like this, in this embodiment,, therefore, can suppress in advance directly to catch arm member 400 and the breakage that causes even accident etc. because the physical strength of arm member 400 and this loading part is higher.

More than, embodiment of the present invention has been described, but the present invention is not limited to above-mentioned embodiment.In addition, embodiment of the present invention can carry out various changes except above-mentioned.

For example; In the above-described embodiment, utilize display element that B light, G light, R light are modulated, and utilize the light after dichroic prism will be modulated to synthesize; But; Further utilize corresponding display element that the light beyond these wave bands is modulated, the light after the modulation is synthesized with B light, G light, R light, thereby it is also passable to incide projection optics system 20.For example; In the light that sends by light source 101; Except B light, G light, R light; Also exist under the situation of spectrum component of yellow wave band (below be called " Ye light "), Ye light is imported corresponding display element, and will synthesize also passable by dichroic prism with B light, G light, R light via the Ye light that this display element is modulated.

In addition, in the above-described embodiment, the display element that uses infiltration type still, also can be suitable for the present invention as the element that each coloured light is modulated in the projector of the display element that uses reflection-type.Which in addition, for the face incident that makes each coloured light from dichroic prism 116, except above-mentioned method, can suitably change.

In addition, in the structure example of Fig. 1,, use the compound eye integraph, still, also can use excellent integrator to replace it as the parts that make the light equalization.

In addition; In the above-described embodiment; Show the projector that uses liquid crystal panel; But, even, also can be suitable for the present invention at the projector of DLP (DigitalLight Processing: digital light handle) (registered trademark of テ キ サ ス イ Application ス Star Le メ Application Star (TI) society) mode for example of the projection type image display apparatus with other image photogenerated system.

Embodiment of the present invention can suitably change in the scope of the technological thought that technical scheme is put down in writing.

Claims (7)

1. a projection type image display apparatus is characterized in that,
Have: main body housing; Projection lens portion, the light after incident is modulated by optical modulation element; Catoptron portion will be from the light of said projection lens portion outgoing towards by the projection surface reflection,
On said main body housing, in the 2nd side of the opposition side that is positioned at the 1st side, form with the configuration of said projection lens portion and said catoptron portion and move corresponding height difference with light projection mouthful,
The arm member of conduct height difference correction portion is installed in the 2nd side of said main body housing; Put face ground and said main body housing is carried put said when year being put face towards carrying making the 2nd side; Proofread and correct said height difference, make light point to desirable direction from said catoptron portion.
2. according to the projection type image display apparatus of claim 1, it is characterized in that,
In said height difference correction portion, be furnished with the adjustment anchor clamps, the pointing direction from the light of said catoptron portion finely tuned thereby these adjustment anchor clamps are used to change the distance of being carried the face of putting in said the 2nd side and said of said main body housing.
3. according to the projection type image display apparatus of claim 2, it is characterized in that,
In said the 2nd side of said main body housing, be furnished with teat at the allocation position of said catoptron portion,
Adjust said adjustment anchor clamps and change said the 2nd side and the said distance put face of being carried of said main body housing, thus, said main body housing is that fulcrum rotates with said teat.
4. according to the projection type image display apparatus of claim 3, it is characterized in that,
Said adjustment anchor clamps to be can constituting different 2 said the 2nd side and the said modes of being carried the distance of the face of putting that change said main body housing, dispose said teat and said adjustment anchor clamps with these 2 modes that are positioned at the vertex of a triangle position with said teat.
5. the projection type image display apparatus any according to claim 2 to 4 is characterized in that,
Said adjustment anchor clamps are the adjustment screws that dispose with the mode that leading section contacts with the face of putting in said year.
6. the projection type image display apparatus any according to claim 1 to 4 is characterized in that,
In said the 2nd side of said main body housing, be formed with the screw hole that is used to install said height difference correction portion, when being arranged on ceiling, this screw hole is public to be the screw hole of screw retention on installing mechanism.
7. according to the projection type image display apparatus of claim 5, it is characterized in that,
In said the 2nd side of said main body housing, be formed with the screw hole that is used to install said height difference correction portion, when being arranged on ceiling, this screw hole is public to be the screw hole of screw retention on installing mechanism.
CN2008100824754A 2007-03-06 2008-03-06 Projection display device CN101261358B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2007055979 2007-03-06
JP2007-055979 2007-03-06
JP2007055979 2007-03-06
JP2007-155098 2007-06-12
JP2007155098A JP4901595B2 (en) 2007-03-06 2007-06-12 Projection display
JP2007155098 2007-06-12

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CN101261358A CN101261358A (en) 2008-09-10
CN101261358B true CN101261358B (en) 2012-03-21

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CNA2008100824843A CN101261360A (en) 2007-03-06 2008-03-06 Projection display device and stand used for the projection display device
CN2008100824769A CN101261431B (en) 2007-03-06 2008-03-06 Holding structure and projection display device
CN2008100824754A CN101261358B (en) 2007-03-06 2008-03-06 Projection display device
CN 200810082483 CN101261359B (en) 2007-03-06 2008-03-06 Projection display device

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Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5181637B2 (en) * 2006-12-04 2013-04-10 株式会社リコー Image projection device
JP5125147B2 (en) * 2007-02-27 2013-01-23 株式会社日立製作所 Projection display
JP4901595B2 (en) * 2007-03-06 2012-03-21 三洋電機株式会社 Projection display
JP5210665B2 (en) 2008-03-04 2013-06-12 三洋電機株式会社 Projection display device
JP5216533B2 (en) * 2008-10-30 2013-06-19 三洋電機株式会社 Projection optical system and projection-type image display device
JP5321031B2 (en) * 2008-12-10 2013-10-23 株式会社ニコン Projection device
WO2010067688A1 (en) * 2008-12-10 2010-06-17 株式会社ニコン Projection device
JP5446753B2 (en) * 2008-12-10 2014-03-19 株式会社ニコン Projection device
US8911096B2 (en) 2008-12-10 2014-12-16 Nikon Corporation Projection apparatus for projecting and processing an image
JP4900408B2 (en) * 2009-03-24 2012-03-21 セイコーエプソン株式会社 projector
JP5317787B2 (en) * 2009-03-26 2013-10-16 三洋電機株式会社 Projection display device
JP2010230897A (en) * 2009-03-26 2010-10-14 Sanyo Electric Co Ltd Projection video display apparatus
JP5378025B2 (en) 2009-03-26 2013-12-25 三洋電機株式会社 Projection display device
JP5261269B2 (en) * 2009-04-08 2013-08-14 三洋電機株式会社 Projection display device
JP5526616B2 (en) * 2009-06-18 2014-06-18 セイコーエプソン株式会社 projector
JP5381376B2 (en) * 2009-06-18 2014-01-08 セイコーエプソン株式会社 Projector and assembling method of projector
JP5509689B2 (en) * 2009-06-18 2014-06-04 セイコーエプソン株式会社 projector
JP5402287B2 (en) * 2009-06-18 2014-01-29 セイコーエプソン株式会社 projector
JP5381377B2 (en) * 2009-06-18 2014-01-08 セイコーエプソン株式会社 Projector
JP5402541B2 (en) * 2009-11-06 2014-01-29 株式会社リコー Projection optical device and image display device
US9417513B2 (en) * 2010-03-05 2016-08-16 Seiko Epson Corporation Projector, projection unit and interactive board
JP2011237727A (en) * 2010-05-13 2011-11-24 Sanyo Electric Co Ltd Projection type display device
JP2011237723A (en) * 2010-05-13 2011-11-24 Sanyo Electric Co Ltd Projection type display device
JP5450247B2 (en) * 2010-05-17 2014-03-26 三洋電機株式会社 Projection display
JP5671977B2 (en) * 2010-11-29 2015-02-18 株式会社リコー Image projection device
CN102537759B (en) * 2010-12-10 2014-10-08 联胜(中国)科技有限公司 Lighting module and projector
CN102636870B (en) 2011-02-15 2015-04-08 中强光电股份有限公司 Projector
JP5790248B2 (en) * 2011-07-27 2015-10-07 株式会社リコー Image projection device
JP5686255B2 (en) 2011-08-30 2015-03-18 株式会社リコー Projector device
JP5669020B2 (en) 2011-09-16 2015-02-12 株式会社リコー Image projection device
JP5950179B2 (en) * 2011-11-04 2016-07-13 株式会社リコー Image projection device
DE102012223010A1 (en) * 2012-12-13 2014-06-18 Robert Bosch Gmbh Portable laser projector with an eye protection device and method for protection against laser light
JP2014153478A (en) * 2013-02-06 2014-08-25 Sony Corp Image projection apparatus and image projection method
JP6315228B2 (en) * 2013-05-29 2018-04-25 カシオ計算機株式会社 Projection device, support plate, and projection method of projection device
JP6277608B2 (en) 2013-06-21 2018-02-14 株式会社リコー Cooling structure, image projection device, electronic equipment
CN105531624B (en) 2013-09-13 2017-07-28 日立麦克赛尔株式会社 Projection-type image display device
JP5626436B2 (en) * 2013-10-02 2014-11-19 セイコーエプソン株式会社 Projector
JP5804119B2 (en) * 2014-03-27 2015-11-04 セイコーエプソン株式会社 projector
CN105319810B (en) 2014-06-27 2017-03-15 中强光电股份有限公司 Lens regulating module and scialyscope
JP6463015B2 (en) * 2014-07-09 2019-01-30 キヤノン株式会社 Optical device and projection display device using the same
JP6528562B2 (en) * 2015-01-27 2019-06-12 セイコーエプソン株式会社 Projection optical device and projector
JP6202402B2 (en) * 2015-02-09 2017-09-27 株式会社リコー Image projection device
JP6401863B2 (en) * 2015-07-23 2018-10-10 マクセル株式会社 Projection type image display device and vibration isolator for projection lens used therefor
JP6225964B2 (en) * 2015-09-03 2017-11-08 セイコーエプソン株式会社 Projector and display system
JP2016194716A (en) * 2016-07-04 2016-11-17 株式会社リコー Image projection device
JP6284057B2 (en) * 2016-09-13 2018-02-28 株式会社リコー Image projection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1477442A (en) * 2002-08-22 2004-02-25 致伸科技股份有限公司 Height regulating system of projector
CN2720481Y (en) * 2004-09-24 2005-08-24 广东珠江影视设备制造有限公司 Film projecting apparatus capable of adjusting digital projection optic-axis pitch angle
CN2840110Y (en) * 2005-06-02 2006-11-22 巨博工业股份有限公司 Elevation height regulator structure

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347625A (en) * 1980-06-16 1982-08-31 General Electric Company Arrangement for cellular operation of a repeater trunking system
JPS6491129A (en) * 1987-10-01 1989-04-10 Seiko Epson Corp Focusing mechanism for projection type display device
JPH0253043A (en) * 1988-08-18 1990-02-22 Ricoh Co Ltd Projecter with freely interchangeable lens unit
JPH0373924U (en) * 1989-11-21 1991-07-25
JPH0413944A (en) * 1990-05-07 1992-01-17 Mitsubishi Heavy Ind Ltd Model for air tunnel testing
JPH04181938A (en) * 1990-11-16 1992-06-29 Mitsubishi Electric Corp Projection type display device
JPH0561747U (en) * 1991-07-30 1993-08-13 三洋電機株式会社 Projection direction adjustment mechanism of projection display device
JPH05100312A (en) * 1991-10-09 1993-04-23 Seiko Epson Corp Projection type display device
JP2745926B2 (en) * 1992-01-27 1998-04-28 富士写真フイルム株式会社 Video projector with monitor screen
JPH07128740A (en) * 1993-11-01 1995-05-19 Sony Corp Reflection mirror device for projector
JPH07209567A (en) * 1993-12-31 1995-08-11 Sony Corp Projector device and lens device
JP3296357B2 (en) * 1994-12-27 2002-06-24 セイコーエプソン株式会社 Projection display device
JPH0997981A (en) * 1995-09-29 1997-04-08 Omron Corp Radio apparatus
JPH1096999A (en) * 1996-09-24 1998-04-14 Yoshiko Ando Display device and housing
JP3335549B2 (en) * 1997-01-17 2002-10-21 松下電器産業株式会社 Video projection method on screen and projection type video projector
JPH11146307A (en) * 1997-11-10 1999-05-28 Canon Inc Video display method and video display device
JP2000029401A (en) * 1998-07-08 2000-01-28 Hitachi Ltd Liquid crystal projection type display device
JP2002223079A (en) * 2001-01-29 2002-08-09 Toshiba Lighting & Technology Corp Case for housing printed board for electronic equipment and method of mounting printed board
JP3742761B2 (en) * 2001-07-17 2006-02-08 株式会社日立ケーイーシステムズ Teacher with projector
TW591321B (en) * 2002-01-21 2004-06-11 Beauty Up Co Ltd Projecting device
JP2003215702A (en) * 2002-01-23 2003-07-30 Seiko Epson Corp Projector
JP2003280091A (en) * 2002-03-26 2003-10-02 Olympus Optical Co Ltd Projection display device
JP4223936B2 (en) * 2003-02-06 2009-02-12 株式会社リコー Projection optical system, enlargement projection optical system, enlargement projection apparatus, and image projection apparatus
JP2004252049A (en) * 2003-02-19 2004-09-09 Nec Viewtechnology Ltd Projection display system and projector
JP2004279695A (en) * 2003-03-14 2004-10-07 Nec Viewtechnology Ltd Projector with foreign matter sensor circuit
JP2004347835A (en) * 2003-05-22 2004-12-09 Fujitsu General Ltd Device for suspending equipment
JP4511134B2 (en) * 2003-07-10 2010-07-28 三洋電機株式会社 Projector support structure
JP2005043597A (en) * 2003-07-28 2005-02-17 Seiko Epson Corp Projector
JP2005107218A (en) * 2003-09-30 2005-04-21 Victor Co Of Japan Ltd Projection display device
JP4186826B2 (en) * 2004-01-28 2008-11-26 株式会社デンソー PCB mounting structure
JP5042818B2 (en) * 2004-03-30 2012-10-03 トムソン ライセンシングThomson Licensing Projection module and projector using projection module
JP2006064786A (en) * 2004-08-24 2006-03-09 Funai Electric Co Ltd Liquid crystal display device
JP2006126787A (en) * 2004-09-30 2006-05-18 Victor Co Of Japan Ltd Image display apparatus
JP2006133273A (en) * 2004-11-02 2006-05-25 Olympus Corp Projection type display system
JP4093224B2 (en) * 2004-11-04 2008-06-04 セイコーエプソン株式会社 Projector
JP2006133689A (en) * 2004-11-09 2006-05-25 Fujinon Corp Projector
WO2006068363A1 (en) * 2004-12-21 2006-06-29 Lg Electronics Inc. Thin type projector
JP2006195318A (en) * 2005-01-17 2006-07-27 Seiko Epson Corp Projector
JP2006201328A (en) * 2005-01-19 2006-08-03 Seiko Epson Corp Projector
JP4507927B2 (en) * 2005-03-17 2010-07-21 カシオ計算機株式会社 Projection device, ceiling hanger for projection device, and operation control method of projection device
JP4617960B2 (en) * 2005-03-29 2011-01-26 ブラザー工業株式会社 Projection device
JP2006292900A (en) * 2005-04-08 2006-10-26 Hitachi Ltd Projection optical unit and projection type image display apparatus using the same
JP2007047436A (en) * 2005-08-10 2007-02-22 Fuji Xerox Co Ltd Remote instruction system
JP5239279B2 (en) * 2006-11-28 2013-07-17 セイコーエプソン株式会社 projector
JP4901595B2 (en) * 2007-03-06 2012-03-21 三洋電機株式会社 Projection display

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1477442A (en) * 2002-08-22 2004-02-25 致伸科技股份有限公司 Height regulating system of projector
CN2720481Y (en) * 2004-09-24 2005-08-24 广东珠江影视设备制造有限公司 Film projecting apparatus capable of adjusting digital projection optic-axis pitch angle
CN2840110Y (en) * 2005-06-02 2006-11-22 巨博工业股份有限公司 Elevation height regulator structure

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JP2012150516A (en) 2012-08-09
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JP2011180608A (en) 2011-09-15
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CN101261431A (en) 2008-09-10
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JP4823166B2 (en) 2011-11-24
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JP2011215642A (en) 2011-10-27
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CN101261431B (en) 2011-07-06
CN101261359A (en) 2008-09-10
CN101261358A (en) 2008-09-10
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CN101261360A (en) 2008-09-10
JP4901595B2 (en) 2012-03-21

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