CN1811583A - Liquid crystal unit, projection lens structure body and image projection device using same - Google Patents
Liquid crystal unit, projection lens structure body and image projection device using same Download PDFInfo
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- CN1811583A CN1811583A CNA2005100588777A CN200510058877A CN1811583A CN 1811583 A CN1811583 A CN 1811583A CN A2005100588777 A CNA2005100588777 A CN A2005100588777A CN 200510058877 A CN200510058877 A CN 200510058877A CN 1811583 A CN1811583 A CN 1811583A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
- F21V21/088—Clips; Clamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F17/00—Flags; Banners; Mountings therefor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F17/00—Flags; Banners; Mountings therefor
- G09F2017/0066—Stands for flags
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- Physics & Mathematics (AREA)
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- Projection Apparatus (AREA)
Abstract
The invention relates to a liquid crystal unit which is convenient to rotate and move along the axle or a liquid crystal unit which is convenient to rotate and move along the axle and/or a projection lens structure body for liquid crystal projector, and an image projection device using the projection lens structure body for liquid crystal projector. The liquid crystal unit and the projection lens structure body comprises: R, G and B liquid crystal units; a plurality of supports which has R, G and B liquid crystal units, windows of light transmission of the active image part entering to the R, G and B liquid crystal units in the central part, through forms arranged holes as prescriptive diameter near the edge; arranged needles whose diameters are smaller than the arranged holes, which are protrude and are inserted into the arranged holes of the supports, and brackets having clubbed upper frame and lower frame; paste agent for pasting the supports and the brackets; and several projection lenses forming relate to the R, G and B liquid crystal units and installing on the opposite of the R, G and B liquid crystal units in the brackets.
Description
Technical field
The present invention relates to liquid crystal cells and projection lens structure body and utilize the image projection device of this liquid crystal cells and projection lens structure body, specifically, relate to and be convenient to rotate with axially movable liquid crystal cells or be convenient to rotate with axially movable liquid crystal cells and/or be convenient to axially movable liquid crystal projection apparatus projection lens structure body and utilize the image projection device of this liquid crystal projection apparatus projection lens structure body.
Background technology
After the light that the projection arrangement that utilizes liquid crystal penetrates light source by dichronic mirror was separated into R, G, B, liquid crystal optionally ON/OFF was separated into versicolor light image information is provided.Usually, alternative liquid crystal mainly uses CRT (Cathode Ray Tube) projection arrangement, but CRT projection arrangement volume is big, so the projection arrangement that it is used liquid crystal gradually substitutes.
Utilize the projection arrangement of liquid crystal to have: 1) light source is separated into R, G, B and form behind the image by shades of colour with synthetic lens that R, G, B is synthetic, again with the mode of synthetic image projection to the screen; 2) light source is separated into R, G, B and form image by shades of colour after, make its conversion (conversion) consistent and project to mode on the screen.
Fig. 1 shows the exemplary configuration of traditional image projection device that utilizes liquid crystal.Fig. 1 is traditional use 3-liquid crystal, the image projection device structural drawing of 3-projecting lens.Below with reference to Fig. 1 traditional image projection device structure is described.
Block lens 3 from the light of lighting device 2 emission that has a light source 1 at least by UV and incide R, G, B dichronic mirror 4,5,6 systems 7.Each dichronic mirror 4,5,6 has the light that only reflects corresponding wavelength, the function of transmission residue light.For example, the light of 4 reflections of R dichronic mirror R wavelength band, and the light of transmission residue wavelength band.Light by each dichronic mirror 4,5,6 reflection incides each liquid crystal cells 11,12,13 by field lens 8,9,10.ON/OFF by liquid crystal cells 11,12,13 forms R, G, B image respectively, and the shades of colour image projection of formation is to screen 17.
As shown in Figure 1, because have nothing in common with each other to the distance at screen 17 centers, on same line, arrange G liquid crystal cells 12 and projecting lens 15 from R, G, each projecting lens 14,15,16 of B.In contrast, be positioned at the R liquid crystal cells 13 and the R projecting lens 16 of both sides, also have B liquid crystal cells 11 and B projecting lens 14 to place each other position spaced (not shown) a little, so that make it to screen 17 center incident lights.And,, also different more from each projecting lens 14,15,16 from the light reach of R, G, the emission of B projecting lens more near the both sides of screen 17.Therefore, 3-liquid crystal as shown in Figure 1,3-projection lens system need be convenient to adjust the liquid crystal and the projection lens structure body of each projecting lens or liquid crystal cells in order correctly to change (conversion) R, G, the next light of B projecting lens emission on screen.
In addition, traditional image projection device uses linear pattern optical system and the structure that comprises several catoptrons for image projection is arrived screen.Promptly this structure is when linear pattern optical system during to screen bottom projected light, first catoptron of arranging with predetermined angular by the front of linear pattern optical system reflects to prescribed direction, it passes through second mirror reflects that the linear pattern optical system and the first catoptron top are arranged with predetermined angular more then, projects to screen at last.But this linear pattern optical system structure needs to arrange first catoptron in the front of linear pattern optical system, this structure is not only brought difficulty to image projection device is set, and along with the width of image projection device is elongated, it is big that the image projection device entire area also can become.Therefore the installation that has limited image projection device reaches moves.
Provide a kind of use of convert light direction to comprise the image projection device of the cubical L font of X-optical system in order to solve this traditional drawback.At this moment, L font optical system is in internal condition X-cube conversion direction of light, and therefore, its structure can not arranged independently catoptron in the optical system front, and only arranges that with predetermined angular catoptron gets final product on top.Therefore, by described mirror reflects, project to screen from the light of L font optical system projection.But this L font optical system has increased the whole manufacturing cost of image projection device because used the X-cube of high price.
Summary of the invention
The present invention is intended to solve described drawback, the object of the invention is to provide a kind of and is convenient to carry out transverse axis, Z-axis and rotation is moved, and then the image projection device of being convenient to change the liquid crystal cells and the projection lens structure body of adjustment and utilizing this liquid crystal cells and projection lens structure body.
And, another purpose of the present invention is to move and rotate mobile liquid crystal cells and be convenient to carry out the projecting lens that transverse axis moves in conjunction with being convenient to carry out transverse axis and Z-axis, so that the image projection device that more can accurately adjust the liquid crystal cells and the projection lens structure body of conversion and utilize this liquid crystal cells and projection lens structure body to be provided.
And, another object of the present invention is to provide a kind of high price such as X-cube parts that do not use, and to the light of arbitrarily angled reflection from light source, therefore forms thin projection arrangement, to reduce the manufacturing cost of image projection device, make and install and move the image projection device of being convenient to.
In order to reach described purpose, be can rotate and edge axially movable liquid crystal cells of regulation and projection lens structure body according to liquid crystal cells of the present invention and projection lens structure body, it is characterized in that, comprising: R, G and B liquid crystal cells; Be pasted with R, G and B liquid crystal cells, central portion respectively and have the light transmissive window that incides R, G and B liquid crystal cells active area part, near several supports that the edge, become aligned apertures at least with the specified diameter breakthrough form; Have protrude to form than aligned apertures minor diameter, be inserted into the alignment pins of aligned apertures in each support, and have the carriage of bar-shaped upper frame and lower frame; Paste the alite paste of each support and carriage; Correspond respectively to R, G and B liquid crystal cells in addition and form, in carriage, be installed in several projecting lens on R, G and B liquid crystal cells opposite.
Preferentially, liquid crystal cells and projection lens structure body further comprise: have respectively for R, G and B liquid crystal cells, and be positioned at for the incident direction of light and leave several analyzers on the back side certain distance of each liquid crystal cells; In the face of the light incident direction, be attached to several substrates on each analyzer one side.Each projecting lens is arranged in for the light incident direction, leaves the position of each analyzer back side certain distance.At this moment substrate uses sapphire substrate.And each projecting lens combines with the upper frame of carriage and at least one in the lower frame, preferentially, comprises the orbit portion of horizontal formation on the upper frame of carriage and the face that combines with projecting lens in the lower frame.Also have, alite paste uses UV (Ultra Violet) rigidizer.And liquid crystal cells and projection lens structure body further comprise: arrange respectively in the carriage on the opposing face of R, G and B liquid crystal cells and arrange, connect the framework of the through slot that forms about two sides have; Be installed in the framework axle more than at position up and down; Have respectively for each projecting lens, and have top and bottom can insert respectively each framework about several support plates of the insertion groove that connect to form; For the incident direction of light, be installed in each projecting lens on each support plate back side; Through on each, be arranged in each support plate in abutting connection with between the support plate insertion groove, to support several elastomeric elements of each support plate; Also have, insert each through slot that is combined in framework, an above trimming part of extruding support plate side.At this moment, each support plate further comprises, each support plate is fixed on fixed part several through slots that insert, that the front and back perforation forms of framework.
And, in order to reach described another purpose, utilization is according to the image projection device of liquid crystal cells of the present invention and projection lens structure body, as the light that utilizes at least one light source and dichronic mirror that separates by R, G and B from the light of light emitted and optionally ON/OFF analyzer output and can rotate and the liquid crystal cells that moves to the predetermined axis direction and the image projection device of projection lens structure body, it is characterized in that, comprising: R, G and B liquid crystal cells; Be pasted with R, G and B liquid crystal cells, central portion respectively and have the light transmissive window that incides R, G and B liquid crystal cells active area part, near several supports that the edge, become aligned apertures at least with the specified diameter breakthrough form; Have protrude to form than aligned apertures minor diameter, be inserted into the alignment pins of aligned apertures in each support, and have the carriage of bar-shaped upper frame and lower frame; Paste the alite paste of each support and carriage; Correspond respectively to R, G and B liquid crystal cells in addition and form, in carriage, be installed in several projecting lens on R, G and B liquid crystal cells opposite.
Preferentially, liquid crystal cells and projection lens structure body further comprise: arrange respectively in the carriage on the opposing face of R, G and B liquid crystal cells and arrange, connect the framework of the through slot that forms about two sides have; Be installed in the framework axle more than at position up and down; Have respectively for each projecting lens, and have top and bottom can insert respectively each framework about several support plates of the insertion groove that connect to form; For the incident direction of light, be installed in each projecting lens on each support plate back side; Through on each, be arranged in each support plate in abutting connection with between the support plate insertion groove, to support several elastomeric elements of each support plate; Also have, insert each through slot that is combined in framework, an above trimming part of extruding support plate side.And image projection device further comprises, with R, G and the B light of dichronic mirror separation, with the lamp optical system of predetermined angular reflection.Lamp optical system comprises: with R, G and the B light that dichronic mirror separates, and several first illuminator lens of difference optically focused; With the direction of light of the first illuminating lens projection, the light that several that reflect respectively with predetermined angular are adjusted catoptrons and will be adjusted mirror reflects is distinguished several second illuminator lens of optically focused.And make the light of each second illuminator lens projection incide R, G and B liquid crystal cells respectively.Admit the catoptron shell of adjusting catoptron; The second end is fixedly mounted on the locational imaginary triangular apex of the center certain distance field of leaving the field, the back side of adjusting the catoptron shell, and forms several adjustment screws of flight along periphery; Adjust several springs on screw and adjust the loose the second end of screw with each respectively through each respectively and combine, and adjust screw heads along several that form flight interior week.Each is adjusted screw and is inserted into several through holes that form on the axle sleeve fixed network that fixedly mounts the image projection device of adjusting catoptron, and, make the second end of respectively adjusting screw and respectively adjust the outside that screw head is arranged in axle sleeve.
Description of drawings
Fig. 1 is traditional use 3-liquid crystal, the image projection device structural drawing of 3-projecting lens;
Fig. 2 supports (holding) support (holder) transmission plot according to liquid crystal cells of the present invention;
Fig. 3 is the constitutional diagram that attaches liquid crystal cells on support according to the present invention;
Fig. 4 is arranged in process status figure on the carriage with liquid crystal cells according to the present invention;
Fig. 5 is arranged in process sectional view on the carriage with liquid crystal cells according to the present invention;
Fig. 6 a and Fig. 6 b are the projection lens structure body transmission plot according to first embodiment of the invention;
Fig. 7 a and Fig. 7 b are the structure transmission plot according to image projection device of the present invention;
Fig. 8 a and Fig. 8 b are to use the adjustment mirror structure transmission plot in the projecting liquid crystal optical system according to the present invention;
Fig. 9 is the another example structure figure according to image projection device of the present invention.
Symbol description * * * in the * * accompanying drawing
20: carriage 20a, 20b, 20c, 20d: arrange (align) pin
22: track 30a, 30b, 30c: liquid crystal cells
32: substrate 34: analyzer
36a, 36b, 36c: projecting lens 50: light source
51: heat emission fan 52,54: fly's eye mirror
53:UV/IR color filter 55:PBS array
56,57: dichronic mirror 58: reflecting plate
60: the first illuminator lens 61: adjust catoptron
62: the second illuminator lens 63: catoptron shell
64: adjust screw head 65: adjust screw
66: spring 70,71: Polarizer
80: lower frame 81: pitman
82: upper frame 100: liquid crystal cells and projection lens structure body
110: support 110a, 110b, 110c, 110d: aligned apertures
111: flexible cable
Embodiment
Below, the advantage that present invention will be described in detail with reference to the accompanying, feature and preferential embodiment.
Fig. 2 supports (holding) support (holder) transmission plot according to liquid crystal cells of the present invention, Fig. 3 is the constitutional diagram that attaches liquid crystal cells on support according to the present invention, Fig. 4 is arranged in process status figure on the carriage with liquid crystal cells according to the present invention, and Fig. 5 is arranged in process sectional view on the carriage with liquid crystal cells according to the present invention.Illustrate according to liquid crystal cells of the present invention and projection lens structure body structure and operation below with reference to Fig. 2 to Fig. 5.
Press the light that different colours separates to R, G, B each liquid crystal cells 30a, 30b, 30c incident by dichronic mirror (dichroicmirror).Each liquid crystal cells can be formed with R, G, B or B, G, R from the left side, but for the purpose of convenient, is as the criterion with R, G, B composition below.
Liquid crystal cells and projection lens structure body 100 are arranged liquid crystal cells 30a, 30b, 30c and projecting lens 36 successively for the incident direction of light, and are separately fixed at framework 20.And, for the working direction of light,, and isolate mutually and arrange liquid crystal cells 30a, 30b, 30c and substrate 32 and analyzer 34 and projecting lens 36 at the one side attaching analyzer 34 of substrate 32.That is, form air gap 38a, 38b, air gap between liquid crystal cells and substrate and analyzer and the projecting lens.And, alternatively, substrate 32, analyzer 34 and projecting lens 36 respectively with each liquid crystal cells 30a, 30b of R, G, B, 30c is corresponding has.Following its each composition portion is elaborated.
And the upper and lower of carriage 20 has alignment pins 20a, 20b, 20c, the 20d that is inserted into aligned apertures 110a, 110b, 110c, 110d on the support 110 respectively.At this moment, make the diameter of the diameter of alignment pins 20a, 20b, 20c, 20d less than aligned apertures 110a, 110b, 110c, 110d, the time it has the gap so that in practical operation, make liquid crystal cells move or rotate to horizontal/.Specifically, under alignment pins 20a, 20b, 20c, 20d and state that aligned apertures 110a, 110b, 110c, 110d combine, utilize the gap between alignment pins and the aligned apertures, support 110 is moved to vertical (Y direction) or level (X-direction), and, support is inclined to specific direction, can realizes θ
ZRotation.Therefore, rack-mount liquid crystal cells 30a, 30b, 30c are moved and θ to the X/Y axle
ZTheir unanimities be adjusted and be made to rotation can to the conversion on the screen.Adjustment example to this liquid crystal cells 30a, 30b, 30c will describe by Fig. 4.
In the constitutional diagram of Fig. 4, liquid crystal cells 30a is to+parallel mobile the state of y direction of principal axis.Can confirm it by the bottom state of contact of alignment pins 20a, 20b, 20c, 20d and aligned apertures 110a, 110b, 110c, 110d here.And liquid crystal cells 30b is to-parallel mobile the state of y direction of principal axis,, can confirm it by alignment pins and aligned apertures top state of contact here.Also have, liquid crystal cells 30c is to-θ
ZThe state of turning axle rotation here, also can be confirmed by the contact condition between alignment pins and the aligned apertures.Also can each liquid crystal cells is parallel mobile to X-direction and/or Z-direction by similar approach.In addition, figure 5 illustrates liquid crystal cells 30a and separate the state that certain intervals combines with pin with support 110, but this is nothing but an embodiment on the drawing, preferentially, liquid crystal cells 30a and support 110 are close to combination usually.As mentioned above, liquid crystal cells 30a can utilize alite paste to combine with support 110.
And, alternatively, on framework 20, have aligned apertures 110a, the 110b, 110c, the 110d that connect to form respectively with described different, on the one side of the support of facing with framework 110, have and protrude alignment pins 20a, 20b, 20c, the 20d that forms.
Each substrate 32 can use glass or sapphire (sapphire) substrate.Substrate 32 corresponding each liquid crystal cells 30a, 30b, 30c are installed in framework 20, at this moment, the circumference field (perimeter region) of substrate are contacted with the part of framework.And, as mentioned above, the one side of each substrate 32, that is, for the working direction of light, analyzer 34 is attached to the front or the back side of substrate.
The bottom surface of each projecting lens 36 is combined in framework 20, forms track 22 on the framework face of the bottom surface contact of projecting lens.Therefore, each projecting lens can be slided along track 22, can be convenient to adjust very much the position of X-direction.And framework 20 also can form track 22 in conjunction with above each projecting lens in conjunction with the surface of contact of each framework above the projecting lens, and framework is combined with the top and bottom surface of each projecting lens simultaneously.After X-direction is adjusted, utilize alite paste, screw or other engagement means etc. to fix each projecting lens 36.Alternatively, can rotate each projecting lens 36, adjust the multiplying power of projecting lens.
In addition, extremely shown in Figure 5 as Fig. 2, when utilize alignment pins 20a, 20b, 20c, 20d and aligned apertures 110a, 110b, 110c, 110d can carry out liquid crystal cells 30a, 30b, 30c the horizontal/vertical direction of principal axis move and during rotation, manufacturing can be fixed up each projecting lens 36.And, alternatively,, projecting lens can be deformed into structure with axle as another embodiment of following Fig. 6 a that will illustrate and Fig. 6 b.
The process of utilizing Fig. 2 to arrange to liquid crystal cells shown in Figure 5 will be described below.
First operation: on support 110 in conjunction with liquid crystal cells 30a, 30b, 30c.Specifically, liquid crystal cells is inserted into support window aperture on every side, or utilizes alite paste to fix.
Second operation: each liquid crystal cells 30a, 30b, the 30c of combination is inserted into alignment pins 20a, 20b, 20c, 20d on the framework 20 respectively.That is, aligned apertures 110a, 110b, 110c, 110d on the support 110 of each liquid crystal cells are inserted into alignment pins.
The 3rd operation: after utilizing collating unit fixed support 110, fine traversing carriage is transferred, the arrangement of whole each liquid crystal cells 30a, 30b, 30c.As mentioned above, when the arrangement of liquid crystal cells is adjusted, utilize the gap between aligned apertures 110a, 110b, 110c, 1110d and alignment pins 20a, 20b, 20c, the 20d.
The 4th operation: for each good liquid crystal cells of stationary arrangement, between alignment pins 20a, 20b, 20c, 20d and support 110, coating UV alite paste on aligned apertures 110a, 110b, 110c, 1110d particularly.
The 5th operation: irradiation UV light on the UV alite paste of coating, therefore sclerosis UV alite paste finishes the operation of arranging liquid crystal cells in desired location.
Variation 1
Utilize the image projection device of this liquid crystal cells and projection lens structure body according to of the present invention and liquid crystal cells and projection lens structure body, as mentioned above, move and θ with respect to the X/Y axle of liquid crystal cells 30a, 30b, 30c
ZThe X-axis position of each projecting lens of liquid crystal cells is adjusted in rotation independently, can adjust the conversion on the screen more accurately.At this moment, alternatively, liquid crystal cells can only carry out the moving and θ of y-axis shift
ZRotation, transmission lens is carried out X-axis and is moved and adjust.Can realize the projection lens structure body that X-axis moves below with reference to Fig. 6 explanation.
Fig. 6 is the transmission plot according to projection lens structure body of the present invention, and Fig. 6 a is the decomposition transmission plot of projection lens structure body, Fig. 6 b be projection lens structure body in conjunction with transmission plot.Projection lens structure body shown in Fig. 6 a and Fig. 6 b is that the working direction with light among Fig. 5 serves as punctual, corresponding to the structural portion of framework 20 rearward end that projecting lens 36 is installed, is for the X-axis position of more accurately adjusting each projecting lens 36a, 36b, 36c.Each projecting lens of Fig. 6 a and Fig. 6 b arranges with R, G, B or B, G, R from right to left, below for consistent with described explanation, is as the criterion with the situation of arranging in proper order of R, G, B from right to left.
The place ahead of the framework 40 of projection lens structure body is installation shaft 44a, 44b up and down, on last lower shaft in conjunction with each projecting lens 36a, 36b, support plate 42a, the 42b of 36c, 42c.Connect the insertion groove that forms, can insert a 44a, 44b about the top and bottom of each support plate 42a, 42b, 42c have, the place ahead of each support plate (direction that light is launched) installs outer lens barrel 37a, 37b, the 37c of projecting lens respectively.R, G, B projecting lens 36a, 36b, 36c are installed on the outer lens barrel of each projecting lens.
And, also overlapping two spring 46a, 46b on last lower shaft 44a, the 44b, specifically, be arranged between the insertion groove of each support plate 42a, 42b, 42c.And the both sides of framework 40 are equipped with fine adjustment screw 48a, the 48b of two side support plate 42a, 42cX shaft position in each support plate of fine setting, for this reason, and the through slot that about the framework two sides form, connects.
Utilization is according to lens arrangement body of the present invention, and the process of adjusting projecting lens 36a, 36b, 36cX shaft position is as follows.
First operation; Each projecting lens support plate 42a, 42b, 42c are enclosed within a 44a, 44b, and the G projecting lens support plate 42b in the middle of will being arranged in afterwards is fixed on framework.
Second operation: after utilizing left and right sides fine adjustment screw 48a, 48b to adjust R projecting lens support plate and B projecting lens support plate X-axis position, be fixed on support 40 and get final product.Specifically, when tightening fine adjustment screw 48a, 48b, fine adjustment screw is arranged in the right flank of R projecting lens support plate 42a of both sides and the left surface of B projecting lens support plate 42c to sinciput respectively, and therefore, two support plate 42a, 42c move to the direction of being close to G projecting lens support plate 42b.And when unscrewing fine adjustment screw 48a, 48b, R projecting lens support plate 42a and B projecting lens support plate 42c are backed down by spring 46a, 46b respectively, leave G projecting lens support plate 42b.
The 3rd operation: rotate the multiplying power that each projecting lens 36a, 36b, 36c adjust each projecting lens.
Therefore, utilize aligned apertures 110a, 110b, 110c, 110d and alignment pins 20a, the 20b of each support 110, the interval between 20c, the 20d, carry out adjustment of X/Y shaft position and the θ of liquid crystal cells 30a, 30b, 30c
ZRotation and the independently X-axis position adjustment of projecting lens 36a, 36b, 36c can make the conversion on the screen more consistent.
Variation 2
Utilization is separated into R, G, B according to the image projection device of liquid crystal cells of the present invention and projection lens structure body with the light of light emitted, and the light that will separate passes through independently, and lamp optical system reflects to certain orientation respectively, form very thin image projection device thickness, make it to be convenient to be provided with and to move.Promptly, R, the G that dichronic mirror is divided into, B light are by lamp optical system optically focused and after the certain orientation reflection respectively, after forming image by R, G, B liquid crystal cells 30a, 30b, 30c,, and the light of projection projected to screen by catoptron by the projecting lens projection.Therefore, need not to use with light, can reduce the manufacturing cost of image projection device to high price parts independently such as the X-cube of certain orientation reflection.As mentioned above, utilize the image projection device of lamp optical system with reference to Fig. 7 a and Fig. 7 b and Fig. 8 a and Fig. 8 b explanation.
Fig. 7 a and Fig. 7 b are the structure transmission plot according to image projection device of the present invention, and wherein Fig. 7 a is the positive transmission plot according to image projection device of the present invention, and Fig. 7 b is the back side transmission plot according to image projection device of the present invention.Below with reference to the structure of Fig. 7 a and Fig. 7 b explanation, but omit the explanation of the basic composition portion of image projection device, stress the composition portion relevant with lamp optical system according to image projection device of the present invention.
Lamp optical system receive respectively dichronic mirror 56,57 and catoptron 58 incidents, be separated into the light of R, G, B, and,, therefore improve optical efficiency to R, G, B liquid crystal cells 30a, 30b, 30c irradiation with the various smooth optically focused of incident and to the certain orientation reflection.R, G, B light have lamp optical system respectively, and each lamp optical system comprises the first illuminator lens 60, adjusts the catoptron 61 and the second illuminator lens 62.
The first illuminator lens 60 correspondence respectively are arranged in dichronic mirror 56,57 and catoptron 58, and receive R, G, the B light that is separated with catoptron by dichronic mirror, project to behind the optically focused and respectively adjust catoptron 61.
Adjust catoptron 61 corresponding each first illuminator lens 60 and arrange, and reflect the light of the first illuminator lens light gathering, can change the direction of illumination of light more than 90 °.Therefore, it is shorter than traditional linear pattern optical system that the length of optical system becomes, thickness that can the downscaled images projection arrangement, and the screen bottom can not arrange catoptron, therefore also can reduce the length of screen bottom.And, need not to use with the light of incident high price parts such as X-cube to the certain orientation reflection, can reduce the manufacturing cost of image projection device.
Adjust catoptron 61 and be attached to bottom axle sleeve 80, and can put mobilely, therefore can adjust the angle of light reflection warpage,, describe in detail with reference to Fig. 8 a and Fig. 8 b to this in lower shaft.
The second illuminator lens, 62 optically focused are respectively adjusted the light of catoptron 61 reflections, and shine R, G, B liquid crystal cells 30a, 30b, 30c, and each liquid crystal cells forms R, G, B image.R, G, B image that each liquid crystal cells forms.R, G, B image that each liquid crystal cells forms respectively by after each R, G, B projecting lens 36a, 36b, the 36c projection, are projected in screen (not shown) after the catoptron (not shown) reflection by the image projection device outside.
Unaccounted symbol 50 is the light sources that send light, the 51st, and the heat emission fan of discharge light source heat.And 52 and 54 is to assemble light source radiative first and fly's eye mirror, the 53rd, block the light middle-ultraviolet lamp UV of light emitted and the UV/IR color filter of infrared ray IR, and the 55th, the light of incident is carried out PBS (the Polarizing Beam Splitter) array of polarisation.Also have, 70 and 71 is the Polarizers that the light of incident carried out polarisation.Described each ingredient is that each image projection device all is suitable for, and the common expert who belongs to the technology of the present invention field easily knows its composition and operation, therefore, omits its detailed description at this.
In addition, the first illuminator lens 60 and adjustment inverse mirror 61 that each structural portion of described image projection device is arranged on a certain size axle sleeve interior assigned address, particularly light source 50, dichronic mirror 56,57, inverse mirror 58 and lamp optical system are arranged on bottom axle sleeve 80.The second illuminator lens 62, liquid crystal cells 30a, 30b, 30c and projecting lens 36a, the 36b of lamp optical system, 36c are arranged on upper shaft sleeve 82.And upper shaft sleeve 82 is connected by pitman 81 with bottom axle sleeve 80.Pitman one axle is fixed on the bottom axle sleeve and can rotates, and makes upper shaft sleeve for bottom axle sleeve rotation predetermined angular.
Fig. 8 a and Fig. 8 b are the adjustment mirror structure transmission plot that is used for liquid crystal projection apparatus optical system of the present invention, and wherein Fig. 8 a is that Fig. 8 b is according to adjustment mirror back surface transmission plot of the present invention according to the positive transmission plot of adjustment catoptron of the present invention.With reference to Fig. 8 a and Fig. 8 b, describe in detail below according to adjustment mirror structure of the present invention.
As mentioned above, adjust catoptron 61, should can adjust angle at the bottom axle sleeve in order to adjust reflection of incident light warpage angle.For this reason, also should possess and take in the catoptron shell 63 of adjusting catoptron 61 and be arranged on the catoptron shell back side, the adjustment screw 65 that the reflection angle of adjusting catoptron is adjusted.Adjust screw 65 first ends and be fixedly mounted on imaginary leg-of-mutton each summit that stands away from the center of catoptron shell 63.And each adjusts screw 65 to be combined with the state of regulation spring 66 combinations, to be inserted into the fixedly through hole (not shown) that is formed on the bottom axle sleeve 80.At this moment, each the second end of adjusting screw is exposed at the outside of described bottom axle sleeve.Therefore, adjust each adjustment screw 65 of catoptron 61 usefulness and be fixedly mounted on bottom axle sleeve 80, and form the form of supporting by spring 66 between the back side of catoptron shell 63 and the bottom axle sleeve.The second end of respectively adjusting screw 65 that is exposed at bottom axle sleeve 80 outsides is combined with adjusts screw head 64.In addition, preferentially,, and each flight is mutually combined along the interior week formation regulation flight of the periphery of adjusting screw 65 and adjustment screw head 64.
In order to adjust angle according to adjustment catoptron 61 of the present invention, rotate when respectively adjusting screw head 64 from the outside of surrounding jacket 80 by fixed-direction, along with described adjustment screw head with adjust the screw flight and coincide mutually, adjust screw head and tighten or unscrew the adjustment screw.As mentioned above, support with each spring 66 between the back side of adjustment catoptron 61 and the bottom axle sleeve 80 that therefore, rotation adjustment screw head 64 can be adjusted the interval between catoptron and the bottom axle sleeve.And, adjust differently and respectively adjust screw head, can adjust the angle of catoptron 61.And therefore the angle of adjusting catoptron 61, can carry out fine adjustment to the angle of adjusting catoptron by adjusting screw 65 and adjusting flight adjustment between the screw head 64.
Variation 3
Show the image projection device embodiment that has projecting lens according to liquid crystal cells of the present invention and projection lens structure body R, G, B respectively above.But, also it can be applicable to two images in R, G, three images of B is synthetic and by the first projecting lens projection, remain an image and pass through the second projecting lens projection, that is, have the image projection device of two projecting lens.This image projection device is shown in Figure 9.Fig. 9 illustrates according to another example structure of image projection device of the present invention figure.Below with reference to Fig. 9 detailed description another embodiment according to image projection device of the present invention.
Another embodiment 200 according to image projection device of the present invention comprises: forwards radiative light source 1; Adjust the fly's eye mirror (fly eye lens) 120,130 of the light of light emitted equably; The collector lens (condensing lens) 131 to 136 that incident light is concentrated; The polarized condition of light is converted to the polarisation converting system (PCS:PolarizationConversion System) 140 of steady state (SS); In the light of incident, the light of reflection particular color, the dichronic mirror (dichroic mirror) 150,151 of transmission residue light; With the light of incident catoptron 152,153 to the specific direction reflection; Phase place chronotron (retarder) 160 with the conversion of the polarization direction of incident light; A transmission has the polarizer (polarizer) 170 to 172 and the analyzer (analyzer) 175,177 of specific polarization direction light in incident light; The liquid crystal cells 180,182 of the image of the light of particular color of formation incident; The polarisation beam separator (PBS:Polarizing Beam Splitter) 185 of each color image of synthetic incident; The light of incident is enlarged first projecting lens 190 and second projecting lens 191 that projects on the screen.Alternatively, in the structure shown in Fig. 9, can use integrator (integrator) to replace fly's eye mirror 120,130.
Another embodiment 200 according to image projection device of the present invention selects the light use dichronic mirror 150,151 of light source 1 emission respectively to reflect behind R, the G.Then, utilize optionally On/Off light of R liquid crystal and G liquid crystal 181 respectively.After the R/G imagery exploitation polarisation beam separator 185 of selectivity projection synthesizes, utilize first projecting lens 190 to project to screen.Residue B light incides B liquid crystal 182 by catoptron 152.According to the image of B liquid crystal 182 selectivity On/Off, utilize second projecting lens 191 to project to screen.Light by two synthetic colors of polarisation electron beam separation vessel 185 can be selected B/G or R/B arbitrarily, remains a color of light without polarisation beam separator 185, directly projects to screen by projecting lens 191.
And each liquid crystal cells 180 to 182 is installed in support 110 as mentioned above, and described support is installed in framework 20.That is, R liquid crystal cells 180 is installed in support 110 and the framework 20 that is positioned at polarisation beam separator 185 incident ends with G liquid crystal cells 181, and B liquid crystal cells 182 is installed in support and the framework that is positioned at second projecting lens, 191 incident ends.Therefore, utilize the interval between support 110 aligned apertures 110a, 110b, 110c, 110d and alignment pins 20a, 20b, 20c, the 20d, liquid crystal cells is carried out the X/Y axle move and θ
ZConversion and unanimity on the screen are adjusted in rotation.After adjusting liquid crystal cells, its ordered state is fixed in aligned apertures coating UV alite paste and sclerosis, and this is with described identical.
As mentioned above, according to liquid crystal cells of the present invention and projection lens structure body and utilize the image projection device of this liquid crystal cells and projection lens structure body, has the remarkable result of being convenient to adjust liquid crystal cells and projecting lens when correctly adjusting focus.
That is, according to liquid crystal cells of the present invention and projection lens structure body and utilize the image projection device of this liquid crystal cells and projection lens structure body, be convenient to carry out the X-axis of liquid crystal cells and y-axis shift is moving or θ
ZThe conversion on the screen can be accurately adjusted in rotation.Also have, used the projection lens structure body that to finely tune R, G, B projecting lens X-axis position, not only can accurately adjust the position of each projecting lens, but also described projection lens structure body can be applicable to fixedly structure or the adjustment liquid crystal cells Y-axis position and the θ of liquid crystal cells
ZThe structure of rotation has been exaggerated range of application.
Therefore, image projection device according to the present invention with the light of light emitted to arbitrarily angled reflection, reduced the thickness of image projection device, not only be convenient to carry out the setting of image projection device and move, and under the situation of not using high price parts such as X-cube, also can change direction of light, reduced the image projection device manufacturing cost.
More than preferred embodiment of the present invention is had been described in detail, but interest field of the present invention is not limited to this, utilizes the colleague's of the key concept of the present invention that defines in the claims various distortion and improvement form also to belong to interest field of the present invention.
Claims (13)
1. one kind can be rotated and to liquid crystal cells and projection lens structure body that the predetermined axis direction moves, it is characterized in that, comprising: R, G and B liquid crystal cells;
Attach described R, G and B liquid crystal cells respectively, central portion has the light transmissive window to described R, G and the incident of B liquid crystal cells active area part at least, has several supports that specified diameter connects the aligned apertures that forms near the edge;
Have the diameter littler and protrude formation, be inserted into the alignment pins of the aligned apertures of described each support, carriage with bar-shaped upper frame and lower frame than described aligned apertures;
Paste the alite paste of described each support and carriage;
Corresponding described R, G and B liquid crystal cells have respectively, and are installed in several projecting lens on R, G described in the described carriage and opposite, B liquid crystal cells position.
2. according to claims 1 described a kind of liquid crystal cells and projection lens structure body, it is characterized in that described liquid crystal cells and projection lens structure body further comprise:
Corresponding described R, G, B liquid crystal cells have respectively, and for the incident direction of light, are positioned at several analyzers that leave described each certain distance position, the liquid crystal cells back side; And
In the face of the incident direction of light, be attached to several substrates on described each analyzer one side.
Described each projecting lens for the incident direction of light, is arranged in the position of leaving described each analyzer back side certain distance.
3. according to claims 2 described a kind of liquid crystal cells and projection lens structure bodies, it is characterized in that described substrate is a sapphire substrate.
4. according to claims 1 described a kind of liquid crystal cells and projection lens structure body, it is characterized in that, described each projecting lens at least with the upper frame of described carriage and lower frame in one combine.
5. according to claims 4 described a kind of liquid crystal cells and projection lens structure bodies, it is characterized in that, comprise, in the upper frame of described carriage and the lower frame in conjunction with the orbit portion that laterally forms on the face of described projecting lens.
6. according to claims 1 described a kind of liquid crystal cells and projection lens structure body, it is characterized in that described alite paste is UV (Ultra Violet) rigidizer.
7. according to claims 1 described a kind of liquid crystal cells and projection lens structure body, it is characterized in that described liquid crystal cells and projection lens structure body further comprise:
Be arranged in described carriage and arrange the opposite of R, G and B liquid crystal cells respectively, and the framework of the through slot that connect to form about having of two sides;
Be installed in described framework more than one axle up and down;
Have respectively for described each projecting lens, and have several support plates that top and bottom can be inserted the insertion groove that perforation forms about described each framework respectively;
For the incident direction of light, be installed in each projecting lens at described each support plate back side;
Be worn on described each, be arranged in described each support plate in abutting connection with between the support plate insertion groove, support several elastomeric elements of described each support plate; And
Insertion is combined in each through slot of described framework, pushes an above trimming part of described support plate side.
8. according to claims 7 described a kind of liquid crystal cells and projection lens structure bodies, it is characterized in that, described each support plate comprises that further described each support plate is fixed to that fixed part on the described framework inserts, front and back connects several through slots that form.
9. image projection device that utilizes liquid crystal cells and projection lens structure body,
Utilize the light of at least one light source and dichronic mirror that separates by R, G and B from the light of described light emitted and the optionally described dichronic mirror output of on/off and can rotate and the liquid crystal cells that moves to the predetermined axis direction and the image projection device of projection lens structure body, it is characterized in that described liquid crystal cells and projection lens structure body comprise:
R, G and B liquid crystal cells;
Attach described R, G and B liquid crystal cells respectively, central portion has the light transmissive window to described R, G and the incident of B liquid crystal cells active area part at least, has several supports that specified diameter connects the aligned apertures that forms near the edge;
Have the diameter littler and protrude formation, be inserted into the alignment pins of the aligned apertures of described each support, carriage with bar-shaped upper frame and lower frame than described aligned apertures;
Paste the alite paste of described each support and carriage;
Corresponding described R, G and B liquid crystal cells have respectively, and are installed in several projecting lens on R, G described in the described carriage and opposite, B liquid crystal cells position.
10. according to claims 9 described a kind of image projection devices that utilize liquid crystal cells and projection lens structure body, it is characterized in that, be arranged in described carriage and arrange the opposite of R, G and B liquid crystal cells respectively, and the framework of the through slot that connect to form about having of two sides;
Be installed in described framework more than one axle up and down;
Have respectively for described each projecting lens, and have several support plates that top and bottom can be inserted the insertion groove that perforation forms about described each framework respectively;
For the incident direction of light, be installed in each projecting lens at described each support plate back side;
Be worn on described each, be arranged in described each support plate in abutting connection with between the support plate insertion groove, support several elastomeric elements of described each support plate; And
Insertion is combined in each through slot of described framework, pushes an above trimming part of described support plate side.
11., it is characterized in that described image projection device further comprises according to claims 9 described a kind of image projection devices that utilize liquid crystal cells and projection lens structure body,
To be separated into the light of R, G and B by described dichronic mirror, in accordance with regulations the lamp optical system of angle reflection.
Described lamp optical system comprises:
To be separated into the light of R, G and B by described dichronic mirror, respectively several first illuminator lens of optically focused;
With the direction of light of the described first illuminator lens projection, several that reflect respectively to predetermined angular are adjusted catoptrons;
Reach several second illuminator lens with the light difference optically focused of described adjustment mirror reflects.
The light of described each second illuminator lens projection incides described R, G and B liquid crystal cells respectively.
12., it is characterized in that described lamp optical system further comprises according to claims 11 described a kind of image projection devices that utilize liquid crystal cells and projection lens structure body:
Take in the catoptron shell of described adjustment catoptron;
The second end is fixedly mounted on and is positioned at each fixed point of the locational imaginary triangle of back side center gauge set a distance of leaving described adjustment catoptron shell, and forms several adjustment screws of flight along periphery;
Be clothed to described several springs of respectively adjusting screw respectively; And
Be combined in the described loose the second end of screw of respectively adjusting respectively, and along several adjustment screw heads that form flight interior week.
The described screw of respectively adjusting is inserted into several through holes that form on the axle sleeve regulation field of the described image projection device that fixedly mounts described adjustment catoptron,
The described the second end of respectively adjusting screw and describedly respectively adjust the outside that screw head is arranged in described axle sleeve.
13. an image projection device that utilizes liquid crystal cells and projection lens structure body,
Utilize the light of at least one light source and dichronic mirror that separates by R, G and B from the light of described light emitted and the optionally described dichronic mirror output of on/off and can rotate and the liquid crystal cells that moves to the predetermined axis direction and the image projection device of projection lens structure body, it is characterized in that described liquid crystal cells and projection lens structure body comprise:
R, G and B liquid crystal cells;
The polarisation beam separator of synthetic two images selecting only in R, G that described R, G and B liquid crystal cells produce and B image;
Attach two selected in described R, G and B liquid crystal cells liquid crystal cells respectively, central portion has the light transmissive window to each liquid crystal cells active area part incident of described attaching at least, has two first supports that specified diameter connects the first order hole that forms near the edge;
In described R, G and B liquid crystal cells, attach remaining liquid crystal cells respectively, central portion has the light transmissive window to the active area part incident of each liquid crystal cells of described attaching at least, has second support that specified diameter connects the second order hole that forms near the edge;
Be arranged in the incident end of described polarisation beam separator, the diameter littler than first order bore dia protrudes and forms, and has two first carriages of the first order pin in the first order hole that is inserted into described each first support;
The diameter littler than described second order bore dia protrudes and forms, and has second carriage of the second order pin in the second order hole that is inserted into described each second support;
Paste described each first support and described each first carriage, also have the alite paste of described second support and described second carriage;
Will be by first projecting lens of the synthetic image projection of described polarisation beam separator to screen; And
In described R, G and B image, remaining image is directly projected to second projecting lens on the screen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050006273 | 2005-01-24 | ||
| KR1020050006273A KR20060085418A (en) | 2005-01-24 | 2005-01-24 | Structure of liquid crystal cell and projection lens and image projection system using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1811583A true CN1811583A (en) | 2006-08-02 |
Family
ID=36844576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100588777A Pending CN1811583A (en) | 2005-01-24 | 2005-03-30 | Liquid crystal unit, projection lens structure body and image projection device using same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060085418A (en) |
| CN (1) | CN1811583A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101461959B1 (en) | 2008-07-01 | 2014-11-14 | 엘지전자 주식회사 | Scanning display |
-
2005
- 2005-01-24 KR KR1020050006273A patent/KR20060085418A/en not_active Application Discontinuation
- 2005-03-30 CN CNA2005100588777A patent/CN1811583A/en active Pending
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| KR20060085418A (en) | 2006-07-27 |
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