CN202383412U - Imaging assembly for projection apparatus and projection apparatus using same - Google Patents
Imaging assembly for projection apparatus and projection apparatus using same Download PDFInfo
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- CN202383412U CN202383412U CN2011204420812U CN201120442081U CN202383412U CN 202383412 U CN202383412 U CN 202383412U CN 2011204420812 U CN2011204420812 U CN 2011204420812U CN 201120442081 U CN201120442081 U CN 201120442081U CN 202383412 U CN202383412 U CN 202383412U
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- prism
- forming assembly
- projection arrangement
- link support
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Abstract
The utility model relates to an imaging assembling for a projection apparatus and a projection apparatus using the same, comprising a prism, a light modulator and a hollow linking support, wherein the prism and the light modulator are connected with the front side and the back side of the linking support in a relative parallel manner to form one integral body. The imaging assembly enables the prism and the light modulator to be integrated in one through the linking support, thereby ensuring the relative position of the prism and the light modulator not to change, effectively ensuring the parallel degree therebetween, and ensuring the consistency of the optical performance; in addition, the integrated design is convenient for maintenance and the protection of the light modulator, and simultaneously enables the adjustment to be reduced, the assembling efficiency to be increased, the tool device to be simplified and the production efficiency to be increased. Further, the utility model also provides a projection apparatus using the imaging assembly.
Description
Technical field
The utility model relates to projection display technique, relates in particular to a kind of image-forming assembly of projection arrangement and uses its projection arrangement.
Background technology
In recent years, shadow casting technique has been widely used in aspects such as electronic teaching, office, commercial affairs and advertisement recreational.Wherein a kind of shadow casting technique is that (Digital Light Procession, DLP) technology, this technology want elder generation the digital processing of signal of video signal process, and then come out optical projection in the digital light processing.It is based on the digital micromirror elements of company of Texas Instruments (TI) exploitation, and (Digital Micromirror Device DMD) accomplishes viewable numbers information technique for displaying.Specifically, be exactly that DLP shadow casting technique has used digital micro-mirror wafer (DMD) and is used as main crucial treatment element to realize the digit optical processing procedure.
In DLP projection arrangement commonly used; Often adopt traditional total internal reflection (Total Internal Reflection; TIR)/(Reverse Total Internal Reflection, RTIR) prism is separated the illuminating bundle of incident and the imaging beam of outgoing.That is, incident ray (illuminating bundle) is imported to DMD, and derive the image light (imaging beam) that DMD produces.When assembling, earlier DMD is fixed on the projection arrangement shell, afterwards through screw usually; Total internal reflection prism is put into the corresponding position of shell, artificially adjust total internal reflection prism verticality and and DMD between the depth of parallelism, fix in that total internal reflection prism is carried out a glue afterwards; Because total internal reflection prism and DMD artificially separately adjust, throughput rate is low, and drop shadow effect is influenced greatly by human factor; And, be difficult to guarantee consistency of product.
The utility model content
The technical matters that the utility model will solve provide a kind of easy to adjust, production efficiency is high, the image-forming assembly of the projection arrangement of high conformity.
In addition, also need provide a kind of production efficiency high, high conformity, the projection arrangement that imaging effect is good.
The goal of the invention of the utility model realizes through following technical scheme:
A kind of image-forming assembly of projection arrangement comprises the link support of prism, photomodulator and hollow, wherein, and the front and back that is connected said link support of said prism, photomodulator opposing parallel, being integrally formed.
A kind of projection arrangement comprises lighting device, aforesaid image-forming assembly and projection lens.Wherein, lighting device is used to provide incident ray.Image-forming assembly forms image by the irradiation of said lighting device.Projection lens is used for receiving and throwing the formed image of said image-forming assembly.
The image-forming assembly of the utility model, as a whole through the link support prism and photomodulator integration, guaranteed that the relative position of prism and photomodulator is constant, can effectively guarantee the depth of parallelism between the two, the consistance of optical property is guaranteed; In addition, the protection of incorporate easy design maintenance and photomodulator has also reduced adjustment simultaneously, improves efficiency of assembling, simplifies tooling device, and then enhances productivity.And use the projection arrangement of this image-forming assembly, owing to adopt incorporate image-forming assembly, can easily be assembled in the shell; Production efficiency is high, high conformity, and complete machine is easy to adjust: when projection arrangement forms images when bad; Finely tune through incorporate image-forming assembly; Make projected picture more gorgeous, clear, reduce the conditions of streaking of image, improve imaging effect.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the perspective view of the image-forming assembly of the utility model projection arrangement;
Fig. 2 is the three-dimensional exploded view of Fig. 1;
Fig. 3 a is the structural representation in the front of link support among Fig. 1;
Fig. 3 b is the structural representation of link cradle back among Fig. 1;
Fig. 3 c is the sectional structure synoptic diagram of link support among Fig. 1;
Fig. 4 is assembled to the structural representation in the projection arrangement for the utility model.
Embodiment
Shown in Figure 1 is the perspective view of the image-forming assembly of the utility model projection arrangement, consults Fig. 2 simultaneously, is the three-dimensional exploded view of Fig. 1.The image-forming assembly of projection arrangement comprises the link support 10 of prism, photomodulator and hollow.Wherein, the front and back that is connected link support 10 of prism, photomodulator opposing parallel, being integrally formed.In other words, prism and photomodulator integrate through link support 10.
In the utility model embodiment, prism is a total internal reflection prism 20, and photomodulator is the DMD30 image-forming assembly of DLP projection arrangement (that is, for).Wherein, prism is bonded in the front of link support 10 through cementing agent.Consult Fig. 3 a; The front of link support 10 is provided with and the length of the prism surface of contact installation portion 101 with the width coupling, and installation portion 101 also is provided with and is used to limit the limited block 1011 that prism moves, and the side of this limited block 1011 and prism fits; Certainly, can not fit yet.As shown in the figure, installation portion 101 is provided with limited block 1011 on the length direction of total internal reflection prism 20 and Width.Certainly, in other embodiment of the utility model, this limited block also can omit, and perhaps only limited block 1011 is set in one direction, repeats no more here.
In the embodiment, total internal reflection prism 20 is the RTIR prism, is combined by 2 prisms usually; Wherein effect of playing total reflection light; Other one is commonly referred to as compensating prism, plays compensate for optical length, and adjustment shines the effect of light spot shape on the DMD device.Compensating prism also can be omitted in some low-cost design.Wherein the surface of a prism is designed to locating surface, and methods such as utilization bonding are fixed in installation portion 101 places of link support 10, simultaneously, because the effect of limited block 1011 makes the firm front that is installed in link support 10 of RTIR prism ability.
Consult Fig. 3 b, the back side of link support 10 is provided with the groove 102 with the photomodulator clearance fit, in the utility model embodiment, is the groove 102 with the DMD30 clearance fit.Close on the edge of this groove 102, also be provided with reference column 103 and screw 104.Photomodulator is threadedly connected to the back side of link support 10,, is threadedly connected to the back side that links support 10 through screw (consulting Fig. 2) with corresponding screw that is.The mode that employing is threaded makes things convenient for the loading and unloading of photomodulator and recycles.
In the utility model alternate manner, can also adopt the buckle ways of connecting, photomodulator is connected in the back side of link support 10, make things convenient for the loading and unloading of photomodulator and recycle.
In the utility model embodiment, image-forming assembly also comprises field lens 40, is arranged between total internal reflection prism 20 and the DMD30, also is provided with the step 105 (consulting Fig. 3 a, 3c) that supplies said field lens to place in this link support 10.Certainly, in other embodiment of the utility model, field lens 40 can omit.
In addition, the last latch 50 (consulting Fig. 1,2) that DMD is close to link support that also is provided with of DMD.
Therefore, in the utility model embodiment, at the image-forming assembly of DLP projection arrangement; Through link support 10, guarantee the depth of parallelism between total internal reflection mirror 20, DMD30 and field lens 40 threes, high conformity; Production efficiency is high; Simultaneously, because the three integrates through link support 10, dwindled the transmission of dimension chain.
Again, the hollow transmission region area of link support 10 is a bit larger tham the area of photomodulator.In the embodiment,,, reduce optical loss within it so that light is transmitted on the DMD for being a bit larger tham the area of DMD30; Simultaneously, the area through reasonable control transmission region can also play the effect of tackling parasitic light, the contrast of raising system.
In the utility model embodiment, the side of link support 10 also is provided with via hole 106 and threaded hole 107.This link support 10 matches with pin (not shown) in the shell 60 (consulting Fig. 4) to be assembled by via hole 106, finely tunes.That is,, can realize that complete machine is easy to adjust, be improved to integrated adjustment by the adjustment respectively of traditional prism, photomodulator through regulating incorporate image-forming assembly when projection arrangement imaging is bad when needing to regulate.Say that in detail image-forming assembly is linked in the shell 60 of projection arrangement through threaded hole 107 screw threads of screw and side, when needs are regulated image-forming assembly, as fulcrum, do as a whole the adjusting to image-forming assembly with pin.Regulate that direction can be as shown in Figure 4 along the WidFin of A direction or vertically finely tune along the B direction, regulate finish after, get final product so that screw is fixing in the opposite side of image-forming assembly.
Therefore, the image-forming assembly of the utility model, as a whole through the link support prism and photomodulator integration, guaranteed that the relative position of prism and photomodulator is constant, can effectively guarantee the depth of parallelism between the two, the consistance of optical property is guaranteed; In addition, the protection of incorporate easy design maintenance and photomodulator has also reduced adjustment (adjustment respectively by traditional prism, photomodulator is improved to integrated adjustment) simultaneously, improves efficiency of assembling, simplifies tooling device, and then enhances productivity.
In the utility model, projection arrangement comprises the lighting device that is used to provide incident ray, by the irradiation of lighting device, forms the image-forming assembly of image, and the projection lens that is used to receive and throw the formed image of this image-forming assembly.In the projection arrangement of the utility model,, can easily be assembled in the shell owing to adopt incorporate image-forming assembly; Production efficiency is high, high conformity, and complete machine is easy to adjust: when projection arrangement forms images when bad; Finely tune through incorporate image-forming assembly, guarantee the depth of parallelism of image-forming assembly and projecting lens, can make projected picture more gorgeous, clear; Reduce the conditions of streaking of image, improve imaging effect.
The embodiment of the above is the preferred embodiments of the utility model; It is not the practical implementation scope that limits the utility model with this; The scope of the utility model comprises and is not limited to this embodiment that for example, prism is a polarization splitting prism; And photomodulator is LCOS, can integrate equally through the link support.All shapes according to the utility model, the equivalence variation that structure is done all comprise in the protection domain of the utility model.
Claims (11)
1. the image-forming assembly of a projection arrangement comprises:
Prism;
Photomodulator;
It is characterized in that, also comprise the link support of hollow, the front and back that is connected said link support of said prism, photomodulator opposing parallel, being integrally formed.
2. the image-forming assembly of projection arrangement according to claim 1; It is characterized in that; The front of said link support is provided with the installation portion with the length of prism surface of contact and width coupling, and the back side of said link support is provided with the groove with said photomodulator clearance fit.
3. the image-forming assembly of projection arrangement according to claim 2 is characterized in that, said installation portion also is provided with and is used to limit the limited block that said prism moves.
4. the image-forming assembly of projection arrangement according to claim 1 is characterized in that, said prism is bonded in the front of link support through cementing agent; Said photomodulator is threaded or buckle is connected in the back side that links support.
5. the image-forming assembly of projection arrangement according to claim 1 is characterized in that, the side of link support also is provided with via hole, and said link support matches with pin in the shell to be assembled by via hole, finely tunes.
6. according to the image-forming assembly of any described projection arrangement of claim 1 to 5, it is characterized in that said prism is a total internal reflection prism, said photomodulator is DMD.
7. the image-forming assembly of projection arrangement according to claim 6 is characterized in that, also comprises field lens, is arranged between total internal reflection prism and the DMD, also is provided with the step that supplies said field lens to place in the said link support.
8. the image-forming assembly of projection arrangement according to claim 6 is characterized in that, also is provided with on the said DMD to make DMD be close to the latch that links support.
9. the image-forming assembly of projection arrangement according to claim 8 is characterized in that, the back side of said link support is provided with reference column; Said latch is provided with the pilot hole with said reference column coupling.
10. according to the image-forming assembly of any described projection arrangement of claim 1 to 5, it is characterized in that said prism is a polarization splitting prism, said photomodulator is LCOS.
11. a projection arrangement is characterized in that, comprising:
Lighting device is used to provide incident ray;
Like any described image-forming assembly in the claim 1 to 10,, form image by the irradiation of said lighting device;
Projection lens is used for receiving and throwing the formed image of said image-forming assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204420812U CN202383412U (en) | 2011-11-09 | 2011-11-09 | Imaging assembly for projection apparatus and projection apparatus using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204420812U CN202383412U (en) | 2011-11-09 | 2011-11-09 | Imaging assembly for projection apparatus and projection apparatus using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383412U true CN202383412U (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204420812U Expired - Lifetime CN202383412U (en) | 2011-11-09 | 2011-11-09 | Imaging assembly for projection apparatus and projection apparatus using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105716A (en) * | 2011-11-09 | 2013-05-15 | 红蝶科技(深圳)有限公司 | Imaging module of projector and projector using the same |
| WO2023226140A1 (en) * | 2022-05-23 | 2023-11-30 | 歌尔光学科技有限公司 | Prism fixing structure for optical device, and optical projection device |
-
2011
- 2011-11-09 CN CN2011204420812U patent/CN202383412U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105716A (en) * | 2011-11-09 | 2013-05-15 | 红蝶科技(深圳)有限公司 | Imaging module of projector and projector using the same |
| WO2023226140A1 (en) * | 2022-05-23 | 2023-11-30 | 歌尔光学科技有限公司 | Prism fixing structure for optical device, and optical projection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Cui Jing Road Shenzhen City, Guangdong province 518118 Pingshan New District No. 35 No. 1 Building 6 East Patentee after: Butterfly Technology (Shenzhen) Limited Address before: 518057, Guangdong, Nanshan District hi tech Industrial Park, Shenzhen District North West Road, No. 5, Galaxy Fengyun building, 3 floor Patentee before: Butterfly Technology (Shenzhen) Limited |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |