CN101261431B - Holding structure and projection display device - Google Patents
Holding structure and projection display device Download PDFInfo
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- CN101261431B CN101261431B CN2008100824769A CN200810082476A CN101261431B CN 101261431 B CN101261431 B CN 101261431B CN 2008100824769 A CN2008100824769 A CN 2008100824769A CN 200810082476 A CN200810082476 A CN 200810082476A CN 101261431 B CN101261431 B CN 101261431B
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Abstract
The present invention provides a holding structure which realizes the firm holding of the hold object on the exterior casing. The plate-shaped parts (202a and 205a) are retained between the dummy club (80a) from the casing (1a) of the upper side and the dummy club (80b) from the casing (1b) of the bottom side through a bush (80c), thereby, the projection optical system (20) is installed in the casing. The projection optical system (20) is held with a tridimensional mechanism through the whole casing. Thereby, the projection optical system (20) can be firmly held in the casing.
Description
Technical field
The present invention relates to the maintenance structure that in the exterior case that combination the 1st casing (cabinet) and the 2nd casing form maintenance is held body.In addition, the present invention relates to the amplification of the image on the display element is projected by the projection type image display apparatus on the projection surface.
Background technology
Image on the display element (liquid crystal panel etc.) amplified to project become commercialized by the projection type image display apparatus of projection surface (screen etc.) (hereinafter referred to as " projector ") and extensively popularize.In this projector, in order to shorten the distance between screen and the projector main body, proposed to take the projector of the structure of projection, promptly, when carrying out the wide-angleization of projection optics system, 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 is as projection optics system, and, display element and screen are moved on opposite directions at the optical axis with respect to projection optics system, thereby projection distance shortens, and, realize not having the inclination projection of distorting.But in this existing invention, owing to need with great visual angle wide-angle lens, therefore being accompanied by the rising of cost of maximization of lens and the maximization of projector main body 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, and the image on the display element is imaged between projection lens unit and the catoptron as intermediary image, utilize catoptron that this intermediary image is amplified projection, thereby realize the shortening of projection distance.According to this existing invention, realize wide-angleization by the catoptron of smaller curved surface, thus, can suppress the rising of cost and the maximization of projector main body.
In this projector, usually adopt projection lens unit and catoptron are loaded in the cover body (housing), and this cover body are remained on structure in the exterior case.At this moment, as the structure that keeps cover body, consider for example structure of the invention of patent documentation 3 records.
The invention of patent documentation 3 records is that the optical mount (base) (light engine) that is used for having carried liquid crystal panel, dichronic mirror etc. is installed in the interior mounting structure of cabinet (casing).In this invention, in the bottom surface of cabinet liner (spacer) is installed, being held body via resilient bushing (bush) lift-launch on this liner is optical mount, from the top optical mount is screwed on liner.In this invention, optical mount is only remained on the bottom surface of cabinet via resilient bushing and liner.That is, optical mount only is held by so-called structure.
With light engine compare quite heavy with the projection optics system that forms in catoptron is loaded in cover body the projection lens unit.Therefore, under the situation that will keep with the maintenance structure of patent documentation 3 records, projection optics system is being applied when impacting, might be out of shape the bottom surface of its exterior case that keeps as the projection optics system that is held body of high like this weight.
Patent documentation 2 spies open the 2004-258620 communique
Summary of the invention
The present invention carries out for solving above-mentioned problem, and its problem is to realize and can be firmly held in the interior maintenance structure of exterior case with being held body.In addition, its problem is to provide a kind of projection type image display apparatus, has such maintenance structure, thereby the projection optics system as high weight thing can be firmly held in the exterior case.
Based on above-mentioned problem, the present invention has following feature.
The invention of technical scheme 1 is the maintenance structure that keeps being held body in the exterior case that combination the 1st casing and the 2nd casing form, and it is characterized in that having: the 1st support sector is arranged on described the 1st casing; The 2nd support sector is arranged on described the 2nd casing; And be held portion, and be arranged on described being held on the body, by described the 1st support sector and the described portion that is held of described the 2nd support sector clamping, thus, keep being held body.
The invention of technical scheme 2 such as technical scheme 1 described maintenance structure, it is characterized in that, have anchor clamps, these anchor clamps are under the described state that is held portion by described the 1st support sector and the clamping of described the 2nd support sector, with described the 1st support sector and the combination of described the 2nd support sector.
The invention of technical scheme 3 such as technical scheme 1 or technical scheme 2 described maintenance structures, it is characterized in that, has elastic body, this elastic body is held between portion and described 1 support sector and described the 2nd support sector between described by described the 1st support sector with the clamping of described the 2nd support sector is described when being held portion.
The invention of technical scheme 4 such as technical scheme 3 described maintenance structures, it is characterized in that, on described elastic body, form surface of contact along the clamping direction, and, the face that is touched that when described the 1st support sector and described the 2nd support sector form that clamping is described to be held portion at least one, stands facing each other with described surface of contact, described surface of contact and the described face butt that is touched thus, limit the described body that is held to the direction motion vertical with the clamping direction.
Projection type image display apparatus in the technical scheme 5, light after will modulating according to signal of video signal is in the projection optics system that is amplified projection by projection surface remains on the exterior case that combination the 1st casing and the 2nd casing form, it is characterized in that having: the 1st support sector is arranged on described the 1st casing; The 2nd support sector is arranged on described the 2nd casing; Be held portion, be arranged on the described projection optics system,, thus, described projection optics system is remained in the described exterior case by described the 1st support sector and the described portion that is held of described the 2nd support sector clamping.
Invention in the technical scheme 6 to 8 is characterised in that, makes to keep the maintenance structure of described projection optics system to constitute in described technical scheme 2 to 4 any described modes.
For example, projection optics system is made of projection lens unit, catoptron portion and cover body, and described catoptron portion will be from the light of projection lens unit outgoing to being reflected by projection surface, and described cover body loads these projection lens unit and catoptron portion.
According to the structure of technical solution of the present invention 1, can utilize the 1st support sector of described the 1st casing and the two support of the 2nd support sector of the 2nd casing to be held body.Thus, being held body keeps with spatial structure by whole exterior case.Therefore, can be firmly held in the exterior case,, can accomplish that also exterior case is difficult to produce distortion etc. even apply impact to being held body with being held body.
In addition, as the structure of technical scheme 2, can utilize anchor clamps to be held body acupuncture to fixing the two between fixing and the 1st casing and the 2nd casing of exterior case, and can realize the reduction of anchor clamps, and can realize assembling the reduction in man-hour.
In addition,, when exterior case being applied vibration or impacting, can utilize elastic body to absorb this vibration or impact as the structure of technical scheme 3, and, can accomplish vibration or impact to be difficult to be delivered to be held body.
And then, as the structure of technical scheme 4, utilizing surface of contact and be touched contact between the face, restriction being held body to the direction motion vertical with the clamping direction, so, can keep being held body securely in the direction vertical with the clamping direction.
According to the structure of technical solution of the present invention 5, projection optics system can be firmly held in the exterior case, even and projection optics system applied impact, can accomplish that also exterior case is difficult to produce distortion etc.In addition, according to the structure of technical scheme 6 to 8, can play the effect identical with technical scheme 2 to 3.
Effect of the present invention and meaning are clearer by the explanation meeting of embodiment shown below.But following embodiment is finally also just implemented an illustration when of the present invention, and the present invention is not subjected to the content constraints put down in writing in the following embodiment fully.
Description of drawings
Fig. 1 is the figure (stereographic map) of the structure of the projector in the expression embodiment.
Fig. 2 is the figure (vertical view) of the structure of the projector in the expression embodiment.
Fig. 3 is the figure (upward view) of the structure of the projector in the expression embodiment.
Fig. 4 is the figure (right view) of the structure of the projector in the expression embodiment.
Fig. 5 is the figure (left view) of the structure of the projector in the expression embodiment.
Fig. 6 is the figure (front elevation) of the structure of the projector in the expression embodiment.
Fig. 7 is the figure (rear view) of the 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 of structure of the plate-like portion of the projection optics system of expression in the embodiment.
Figure 12 is the figure at the installing mechanism of casing of the projection optics system of expression in the embodiment.
Embodiment
Below, describe with reference to the structure of accompanying drawing the projector in the embodiment.
Fig. 1 to Fig. 7 is that 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 projector.In addition, in Fig. 2 to Fig. 7, 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 to absorb vibration.
For projection optics system 20, plate- like portion 202a, 205a shown in Figure 8 such as Fig. 1, Fig. 2, shown in Figure 3 are clamped between boss 80a, the 80b via lining 80c, thereby are loaded in the casing.Because projection optics system 20 is held via the lining 80c that is used to absorb vibration, therefore impacts and be 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 to absorb vibration, so holding strength improves.
30 pairs of light sources 101 of power supply unit and main circuit 40 provide power supply.Import the AC voltages via AC import 90 to power supply unit 30.Main circuit 40 is the circuit that are used to drive and control projector.As shown in Figure 1, the circuit substrate that main circuit 40 is kept 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 as shown in Figure 3, are furnished with three suction fans 60 at the bottom surface side of light engine 10.Be configured in the vent fan 70 (with reference to Fig. 5) of left side side of light engine 10 and vent fan 70 (with reference to Fig. 7) exhaust that is configured in rear side by 60 inhaled airs of these suction fans.Configuration suction fan 60 and vent fan 70 so thus, flow through by the mode of 60 inhaled airs of suction fan with optical system, light source 101 and power supply unit 30 by light engine 10.In addition, institute's inhaled air such as Fig. 2, Fig. 3 and as 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.By 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.
Catoptron 204 has the reflecting surface of aspherical shape, will pass through window 206 to being throwed by projection surface (screen cover) from light from the projection light wide-angleization of projection lens unit 201 incidents.
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 is subjected to lensing like this.So, synthetic light mirror 204 wide-angleizations that are reflected, via light by window 206 to being throwed by projection surface (screen cover).
In addition, as described above, incide projection lens unit 201 from the synthetic light of light engine 10 comparing to the position that Z-direction staggers with the optical axis of projection lens unit 201, therefore, as shown in Figure 9, catoptron 204 is configured to move from the optical axis direction of projection lens unit 201 and the moving direction opposition side of synthetic light.Here, catoptron 204 is owing to the big reflecting surface of lens face that has than each lens that constitute projection lens unit 201, and therefore, catoptron 204 is bigger with respect to the amount of movement of the optical axis of projection lens unit 201.Therefore, at the bottom surface side of projector, as Fig. 4 and as shown in Figure 5, produce bigger space G.
Then, with reference to Figure 10, the primary structure of light engine 10 is described.
103 light to the blue wave band from the light of lamp optical system 102 incidents of dichronic mirror reflect (hereinafter referred to as " B light "), and red wave band (hereinafter referred to as " R light ") and green wave band (hereinafter referred to as " 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 is input to display element 106 with directional light.Signal of video signal according to blueness usefulness drives display element 106, according to this driving condition B light is modulated.In addition, is furnished with Polarizer (not shown) at the light incident side and the emitting side of display element 106.
107 pairs in dichronic mirror sees through R light behind the dichronic mirror 103 and the G light in the G light reflects.108 pairs of G light of collector lens provide lensing, so that G light is input to display element 109 with directional light.Signal of video signal according to green usefulness drives display element 109, comes G light is modulated according to this driving condition.In addition, is furnished with Polarizer (not shown) at the light incident side and the emitting side of display element 109.
110,112 pairs of R light of relay lens provide lensing so that at the incident state of the R light of display element 115 with identical at the incident state of the B light of display element 106 and 109 and G light.The light path of catoptron 111,113 change R light is so that the R light that sees through behind the dichronic mirror 107 imports to display element 115.
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, 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.
116 pairs of dichroic prisms utilize B light and the R light in B light, G light and the R light after display element 106,109,115 modulation to reflect, and, make the G light transmission, thus, it is synthetic that B light, G light and R light are carried out color.Carry out the light (synthetic light) of color after synthetic as described above, 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).
Such as shown, light source 101 disposes towards the mode of X-direction with the direction of illumination of light.Configuration light source 101 so thus, even light source 101 uses under projector is arranged on ceiling, fixedly installs and is provided with on the table any state, also always can position light is shone in the horizontal direction.Therefore, can suppress the life-span that light source 101 is configured in the light source 101 that vertical direction causes descends.
In addition, as Fig. 2 and dispose light source 101 as shown in Figure 10, so that the light shaft positive cross of the optical axis of light source 101 and projection lens unit 201, therefore can suppress the size of light engine 10 of the optical axis direction of projection lens unit 201.Thus, can dwindle projection distance, consequently, can suppress to arrive the possibility that screen is covered by barrier before by the light that window 206 penetrates from light.
In addition, projection optics system 20 is made of projection lens unit 201 and catoptron 204, compares weight quite high (weight about several times) with light engine 10.Therefore, in the present embodiment, keep projection optics system 20 securely, so that when the projection optics system 20 as high weight thing being applied impact, keep its casing itself not produce distortion etc.
Below, according to Figure 11,12 the explanation projection optics systems 20 at the maintenance structure in the casing.
Figure 11 is a vertical view of having dismantled the projection optics system 20 under the state of liner 80c.
Plate-like portion 202a is arranged on the left and right sides of substantial middle portion in cover body 202.Be formed with mounting hole 202b that makes lining 80c embedding and the notch part 202c that lining 80c passes through when lining 80c is embedded this mounting hole 202b at plate-like portion 202a.
Plate-like portion 205a is arranged on the bight, the left and right sides of front side in cover body 202.Form mounting hole 205b that lining 80c is embedded and the notch part 205c that lining 80c passes through when lining 80c is embedded this mounting hole 205b similarly at plate-like portion 205a.
Figure 12 is the maintenance structure that expression keeps 20 pairs of casings of projection optics system.Here, the major part longitudinal diagram after expression is cut off the retaining part of the plate-like portion 205a of the left comer portion of cover body 202 along fore-and-aft direction.The following maintenance structure of this part of explanation still, about other parts, be the maintenance structure of plate-like portion 202a of plate-like portion 205a, the central portion left and right sides of the right corner portion of cover body 202, also is and its identical mechanism.
The upper face side casing 1a and the bottom surface side casing 1b that constitute casing are made by synthetic resin.Boss 80a and upper face side casing 1a form, and boss 80b and bottom surface side casing 1b form.
Lining 80c embeds the mounting hole 205b of the plate-like portion 205a of cover body 202.Lining 80c forms with elastic bodys such as rubber, is the general toroidal (doughnut) that central authorities have patchhole 821.At the outer peripheral face of lining 80c, be formed with slot part 822 in whole circumference, this slot part 822 meshes with the inner periphery of the mounting hole 205b of plate-like portion 205a.The external diameter of the external diameter of the jut 802 of boss 80a and the jut 812 of boss 80b and the internal diameter of lining 80c are about equally.
Like this, when assembling, the plate-like portion 205a of cover body 202 is installed on the boss 80b of bottom surface side casing 1a at first.At this moment, the jut 812 that the patchhole 821 of lining 80c is embedded into boss 80b.Lining 80c is installed on the pad 840.
Then, upper face side casing 1a is covered on bottom surface side casing 1b.At this moment, in the patchhole 821 with the jut 802 inlay busher 80c of boss 80a.The front end face of jut 802 and jut 812 is mutual butt in patchhole 821.
Then, make gib screw 830 lead to the through hole 814 of jut 812, twist with the nut 803 of jut 802 and close from accommodating recess 813 sides.Thus, boss 80a and boss 80b combination.At this moment, lining 80c is sandwiched in the mode that is extruded a little between the front end face of column sections 811 of the front end face of column sections 801 of boss 80a and boss 80b, and plate-like portion 205a is held across lining 80c.
Like this, as shown in figure 12, the plate-like portion 205a of cover body 202 is clamped between boss 80a and the boss 80b, and cover body 202 is fixed on the casing.In addition, simultaneously, upper face side casing 1a and bottom surface side casing 1b are fixed.
Because the butt of the internal perisporium (being equivalent to surface of contact of the present invention) of the patchhole 821 of lining 80c and the periphery wall (being equivalent to the face that is touched of the present invention) of jut 802 and jut 812, be limited to the motion of the left and right directions (direction vertical) of cover body 202 with the clamping direction.
Like this, according to present embodiment, can be used to that the two supports projection optics system 20 from the boss 80a of upper face side casing 1a with from the boss 80b of bottom surface side casing 1b.Thus, projection optics system 20 is not only to keep with the face structure by bottom surface side casing 1b, but keeps with spatial structure by whole casing.Therefore, can keep projection optics system 20 securely as the weight thing, and, even being applied impact, projection optics system 20 also is difficult to distortion that causes casing etc.
In addition, utilize gib screw 830 can carry out simultaneously projection optics system 20 at fixing the two between fixing and the upper face side casing 1a and the bottom surface side casing 1b of casing.Therefore, can realize the reduction of screw radical, and, can realize assembling the reduction in man-hour.
And then projection optics system 20 is kept by casing by lining 80c.Therefore, even casing is applied vibration or when impacting, also can absorb this vibration or impact by lining 80c, and, can make vibration or impact to be difficult to be delivered to projection optics system 20.
In addition, projection optics system 20 is being installed in casing with light engine 10 under by incorporate states such as screw retention.At this moment, light engine 10 also is installed in casing by screw retention etc.
But, when producing scale error, can impose on projection optics system 20 and light engine 10 by the unwanted external force in the unit after integrated in installation site at the projection optics system 20 of casing and light engine 10, produce warpage in this unit.Thereby, between optical projection system 20 and light engine 10, produce optical axis deviation etc., and, image degradation may be produced thus.
With respect to this, in the present embodiment, projection optics system 20 is installed in boss 80a, 80b, so can in the elastic range of lining 80c, absorb above-mentioned scale error by lining 80c.Thereby, can correctly keep the position relation between projection optics system 20 and the light engine 10, and can prevent image degradation based on above-mentioned warpage.
And then, in the present embodiment, utilize the butt between the periphery wall of the internal perisporium of patchhole 821 of lining 80c and jut 802 and jut 812, the motion of direction (direction vertical) to the left and right of restriction projection optics system 20 with the clamping direction, so, also can keep cover body 202 securely for left and right directions.
In addition, in the above-described embodiment, jut 802,812 is set on the two, the internal perisporium butt of the patchhole 821 of both periphery walls of these juts 802,812 and lining 80c at boss 80a, 80b.But, be not limited to such structure, it for example can be such structure, promptly, at boss 80a jut is not set, and the jut 812 of boss 80b is extended to the front end face of the column sections 802 of boss 80a, and the internal perisporium of the patchhole 821 of lining 80c only with the periphery wall butt of jut 812.That is, only the some settings among boss 80a and the boss 80b are equivalent to the position that is touched face of the present invention.
Embodiments of the present invention more than have been described, still, the present invention is limited by above-mentioned embodiment.In addition, embodiments of the present invention can be carried out various changes except above-mentioned.
Claims (2)
1. one kind keeps structure, keeps being held body in the exterior case that combination the 1st casing and the 2nd casing form, it is characterized in that,
Have: the 1st support sector is arranged on described the 1st casing; The 2nd support sector is arranged on described the 2nd casing; Be held portion, be arranged on described being held on the body,
Have elastic body, this elastic body is held between portion and described 1 support sector and described the 2nd support sector between described by described the 1st support sector with the clamping of described the 2nd support sector is described when being held portion,
Have anchor clamps with described the 1st support sector and the combination of described the 2nd support sector,
On described elastic body, form surface of contact along the clamping direction, and, the face that is touched that when described the 1st support sector and described the 2nd support sector form that clamping is described to be held portion at least one, stands facing each other with described surface of contact, described surface of contact and the described face butt that is touched, thus, the described body that is held of restriction is to the direction motion vertical with the clamping direction.
2. projection type image display apparatus, the light after will modulating according to signal of video signal is characterized in that in the projection optics system that is amplified projection by projection surface remains on the exterior case that combination the 1st casing and the 2nd casing form,
Have: the 1st support sector is arranged on described the 1st casing; The 2nd support sector is arranged on described the 2nd casing; Be held portion, be arranged on the described projection optics system,
Have elastic body, this elastic body is held between portion and described 1 support sector and described the 2nd support sector between described by described the 1st support sector with the clamping of described the 2nd support sector is described when being held portion,
Have anchor clamps with described the 1st support sector and the combination of described the 2nd support sector,
On described elastic body, form surface of contact along the clamping direction, and, the face that is touched that when described the 1st support sector and described the 2nd support sector form that clamping is described to be held portion at least one, stands facing each other with described surface of contact, described surface of contact and the described face butt that is touched, thus, the described body that is held of restriction is to the direction motion vertical with the clamping direction.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007055979 | 2007-03-06 | ||
| JP2007055979 | 2007-03-06 | ||
| JP2007-055979 | 2007-03-06 | ||
| JP2007-205982 | 2007-08-07 | ||
| JP2007205982 | 2007-08-07 | ||
| JP2007205982A JP4961298B2 (en) | 2007-03-06 | 2007-08-07 | Projection display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101261431A CN101261431A (en) | 2008-09-10 |
| CN101261431B true CN101261431B (en) | 2011-07-06 |
Family
ID=39961926
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100824754A Active CN101261358B (en) | 2007-03-06 | 2008-03-06 | Projection display device |
| CNA2008100824843A Pending CN101261360A (en) | 2007-03-06 | 2008-03-06 | Projection display device and stand used for the projection display device |
| CN 200810082483 Active CN101261359B (en) | 2007-03-06 | 2008-03-06 | Projection display device |
| CN2008100824769A Active CN101261431B (en) | 2007-03-06 | 2008-03-06 | Holding structure and projection display device |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100824754A Active CN101261358B (en) | 2007-03-06 | 2008-03-06 | Projection display device |
| CNA2008100824843A Pending CN101261360A (en) | 2007-03-06 | 2008-03-06 | Projection display device and stand used for the projection display device |
| CN 200810082483 Active CN101261359B (en) | 2007-03-06 | 2008-03-06 | Projection display device |
Country Status (2)
| Country | Link |
|---|---|
| JP (8) | JP4901595B2 (en) |
| CN (4) | CN101261358B (en) |
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| 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 |
| JP5446753B2 (en) * | 2008-12-10 | 2014-03-19 | 株式会社ニコン | Projection device |
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| US8911096B2 (en) | 2008-12-10 | 2014-12-16 | Nikon Corporation | Projection apparatus for projecting and processing an image |
| JP5321031B2 (en) * | 2008-12-10 | 2013-10-23 | 株式会社ニコン | Projection device |
| 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 |
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| 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 |
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| JP5269138B2 (en) | 2013-08-21 |
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| CN101261358B (en) | 2012-03-21 |
| JP4901595B2 (en) | 2012-03-21 |
| JP2008250282A (en) | 2008-10-16 |
| JP4961298B2 (en) | 2012-06-27 |
| JP4823166B2 (en) | 2011-11-24 |
| CN101261431A (en) | 2008-09-10 |
| JP4901648B2 (en) | 2012-03-21 |
| JP2012150516A (en) | 2012-08-09 |
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