CN203204298U - Polarized 3D system based on polarization recovery - Google Patents
Polarized 3D system based on polarization recovery Download PDFInfo
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- CN203204298U CN203204298U CN2013201811902U CN201320181190U CN203204298U CN 203204298 U CN203204298 U CN 203204298U CN 2013201811902 U CN2013201811902 U CN 2013201811902U CN 201320181190 U CN201320181190 U CN 201320181190U CN 203204298 U CN203204298 U CN 203204298U
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Abstract
The utility model relates to a polarized 3D system based on polarization recovery. The system comprises a splitter, an optical regulator group, a lower polarizer, a screen, a reflector and an upper polarizer. One path of light transmitted through the projector passes through the splitter, the optical regulator group and the lower polarizer to project onto the screen; and the other light path is reflected to the reflector through the splitter, and the light reflected to the reflector is projected to the screen through the polarizer. The utility model has the advantage that the system can realize double brightness during projection of a 3D film compared with a common polarization 3D system, and has the 3D effect significantly clear than that of the common 3D polarization system. Compared with the existing double-machine 3D system and IMAX 3D system, the utility model has simple system composition, does not have requirements of a 3D double-machine system and but saves the cost.
Description
Technical field
The utility model relates to optical system, in more detail, relates to the polarization 3D system based on Polarization recovery.
Background technology
Polarization type 3D utilizes light to have the principle of " direction of vibration " to decompose original image, by placing Polarizer at display screen, can carry two different width of cloth pictures of two width of cloth polarization directions to the beholder, when picture process polarization eyes, because every eyeglass of polarization type glasses can only be accepted the picture of a polarization direction, people's right and left eyes just can receive two a series of paintings faces like this, passes through brain compound stereoscopic image again.
Figure 1 shows that the schematic diagram of nonpolarized light and complete polarized light.It is evenly to distribute or transmission in all directions that Fig. 1 left side is natural light, is nonpolarized light.Fig. 1 right side represents that light produces vibration in same direction, and this is polarized light.
By optical principle as can be known, light is exactly a kind of electromagnetic wave that is formed by mutually perpendicular Electric and magnetic fields in fact, and natural light is a lot of electromagnetic potpourris, and it is uniform in the vibration of all directions.When it is polarized light with specific angle (Brewster angle) through the dazzle that the nonmetallic surface back reflection forms.Departed from this angle, just had the part nonpolarized light and be mingled in the polarized light.The degree of partial poolarized light deviation angle is not identical, and the angle that departs from is larger, and the composition of polarized light is fewer, finally becomes nonpolarized light.Polarized light has been arranged, and it is unfavorable to bring to shooting sometimes, and the reflected light of glass surface is taken less than the thing inside the showcase people, and the reflected light of the water surface is taken less than the fish in the water us.
People utilize this specific character of polarized light just in time just to can be good at satisfying the demand that three-dimensional film is the 3D film, so that people's right and left eyes is seen diverse picture.By installing polaroid additional for two projectors, allow projector project mutually perpendicular complete polarized light ripple, then spectators just can allow right and left eyes see different separately pictures and mutually noninterfere by specific polarising glass.
Polarization projection technology is comparatively common in 3D cinema at present, when showing three-dimensional film in early days, also once uses polarising glass.But definite says, the glasses that use at that time should be the linear polarization glasses.And the circular polarization technology of generally using now is to develop on the basis of linear polarization, and principle is basically identical, but it has had qualitative leap than linear polarization on viewing effect.
People should remain that glasses were in horizontality when using the linear polarization glasses to see three-dimensional film in the past, make the horizontal polarization eyeglass see the image of horizontal polarization direction, and the vertical polarization eyeglass were seen the image of vertical polarization.If glasses are deflection slightly, the vertical polarization eyeglass will be seen the image of a part of horizontal direction, and the horizontal polarization eyeglass also can be seen the image of a part of vertical direction, and images of left and right eyes will be seen obvious ghost image.
Traditional polarization type 3D technology, its shortcoming is to have the luminance loss.By the polarisation principle as can be known, this technology can make picture brightness can only reach 16% of original luminance, so polarization type 3D technology is to having relatively high expectations that the brightness of projector is exported.Perhaps improve brightness by the mode of using two-shipper output.
The utility model content
Polarization 3D system based on Polarization recovery described in the utility model, it is comprised of light splitting piece, light path regulator group, lower polaroid, screen, catoptron, upper polarizer.From the light of projector's transmission, the one tunnel through light splitting piece, light path regulator group, lower polarization projection to screen; Another road is refracted on the catoptron through light splitting piece, is refracted to the light on the catoptron, projects in the screen through upper polaroid again.
Described light path regulator group is a kind of device for regulating light path image size.Optically using upper the realization adjusts the magnification in the light path.
Polarization 3D system based on Polarization recovery described in the utility model, the principle of its technical solution is, light efficiency is described in the utility model based on the basic core technology key element of the polarization 3D system of Polarization recovery, and for wanting that obtaining the high-quality 3D audiovisual experience spectators also is most important undoubtedly.Because traditional polarization type 3D imaging meeting has very lossy to light; and then affect presenting of euphorosia degree that spectators watch and image level; complain that picture is dim so often can see the spectators that watch the 3D film, do not see details, wear for a long time the problems such as eyes discomfort, fatigue.Although brighter 3D equipment can not be made, and can reduce the loss of light as far as possible.Polarization 3D system based on Polarization recovery described in the utility model can be the light efficiency recycling that originally consumes in making polarized light, and bright loss is reduced to minimum.
For common polarized light 3D system, the mixed polarized light that projector sends is got on the polaroid, and P light is got in the screen by polaroid, and S light then is polarized sheet and reflects, and in whole light path, S light is wasted.Therefore the brightness of visible light only has through before the polarized light half in the actual screen.
Polarization 3D system based on Polarization recovery described in the utility model, the mixed polarized light that projector sends was divided into P light and S light by light splitting piece before this, P light directly passes through light splitting piece, get in the screen through behind the polaroid, S light is by upwards reflection of light splitting piece, behind top catoptron, get in the screen through polaroid.So just the S light of original waste has been recycled again.Recycling through this, can bring up to significantly the light intensity that projects on the polaroid, the brightness of the polarized light of process polaroid output just can double like this.
If the luminance level of supposition 2D motion picture projection is eyes 100%, then the theoretical boundary in the 3D system is that every eyes are 50%, most 3D equipment can only reach every eyes 10%-17% on the market, polarization 3D system based on Polarization recovery described in the utility model can be the light efficiency recycling that consumes in the polarized light, so that light efficiency can reach near 30%.The utility model overlaps principle based on the picture in the polarization 3D system of Polarization recovery, by adjusting the angle of catoptron in the upper light path, so that the hot spot that projects in the screen by upper and lower light path overlaps.Because the diverging light that only has certain angle that from projector, casts out, and among the present invention, the situation that upper light path and lower light path exist optical path length to differ, when upper light path and lower light path are adjusted picture and are overlapped in screen, after central point overlaps, can in screen, present the phenomenon that large figure overlaps little figure.For this reason, the polarization 3D system based on Polarization recovery described in the utility model has added a light path regulator group in lower light path, is used for adjusting the dispersion angle of lower light path light, so that the hot spot that lower light path is got can overlap with the hot spot of upper light path in screen.
Light path regulator group described in the utility model is a kind of device for regulating light path image size.Realize the magnification in the light path is adjusted in optical application.
At present, the realization of the polarization 3D system based on Polarization recovery described in the utility model has two kinds of technology, and a kind of is linearly polarized light, is exactly polarized light described above.Another kind is circularly polarized light, it be its in linearly polarized light, on the basis of linearly polarized light, rise by optics and to revolve, allow the linearly polarized light rotation.The circularly polarized light polarization direction is regular the rotation, and it can be divided into left-hand polarization light and right-handed polarized light, and their mutual interference are very little, and its logical light characteristic and light-blocking property are not subjected to the impact of the anglec of rotation substantially.When seeing now the 3D film of polarization form, one of the polarising glass sheet of viewers wear is the left-hand polarization sheet, another is the dextropolarization sheet, and what that is to say that spectators' right and left eyes sees respectively is the different pictures that left-hand polarization light and right-handed polarized light bring, and produces stereoscopic sensation by human visual system.
Polarization 3D system based on Polarization recovery described in the utility model can realize aforesaid two kinds of technology, and namely a kind of is linearly polarized light, is exactly polarized light described above; Another kind is circularly polarized light.
Polarization 3D system color loss in application based on Polarization recovery described in the utility model is minimum, and color displays is more accurate, more near its original value.In view of the lens of glasses itself almost without any color, the programme content that is used for polarized light system is carried out color correction also more easy.Especially the colour of skin in a polarized light system, looks more genuine and believable.The 3D effect of polarization type 3D technology is also more outstanding, and stereo perception is true.
Polarization 3D system based on Polarization recovery described in the utility model, light efficiency is the core technology key element of 3D system, and for wanting that obtaining the high-quality 3D audiovisual experience spectators also is most important undoubtedly.Because traditional polarization type 3D imaging meeting has very lossy to light; and then affect presenting of euphorosia degree that spectators watch and image level; complain that picture is dim so often can see the spectators that watch the 3D film, do not see details, wear for a long time the problems such as eyes discomfort, fatigue.Although brighter 3D equipment can not be made, and can reduce the loss of light as far as possible.Polarization 3D system based on Polarization recovery described in the utility model can be the light efficiency recycling that originally consumes in making polarized light, and bright loss is reduced to minimum.
The superior effect of the polarization 3D system based on Polarization recovery described in the utility model is:
1, the utility model can be realized double brightness with respect to general polarization 3D system when projection 3D film, and its 3D effect is more obvious and clear than general polarization 3D system.
2, the utility model is with respect to existing two-shipper 3D system and IMAX3D system, system forms simple, because two-shipper 3D system need to use two projectors, the mutual relation of two projectors, putting of seat in the plane, the selection of angle lens, arranging of projection port all needs the professional to calculate adjustment.And the utility model only need use a projector, installs the requirement that does not also have two-shipper 3D system.
3, the utility model is with respect to existing two-shipper 3D system and IMAX3D system, and overall cost, later maintenance cost are cheap.The price of a projector is more than 300,000, and the cost of IMAX is up to a million especially, and the utility model is with respect to these two kinds of systems, cost savings 30-100 ten thousand at least.In later maintenance, the xenon lamp of projector can only be with 3 months, and an xenon lamp cost uses the utility model about 10,000, can save at least 4 xenon lamps, and save cost 40,000 in 1 year.
Description of drawings
Fig. 1 is nonpolarized light and polarized light schematic diagram;
Fig. 2 is left-handed and dextropolarization light wave schematic diagram;
Fig. 3 is polarized light 3D system light efficiency schematic diagram;
Fig. 4 is that light is based on the polarization 3D system light efficiency schematic diagram based on Polarization recovery described in the utility model;
Fig. 5 is that the polarization 3D system interface based on Polarization recovery described in the utility model overlaps the adjustment schematic diagram;
Fig. 6 is the upper light path spot of the polarization 3D system based on Polarization recovery described in the utility model and the schematic diagram of lower light path spot;
Fig. 7 is that the light of the polarization 3D system based on Polarization recovery described in the utility model reclaims indication device;
Fig. 8 is that light path regulator group described in the utility model is to the adjustment schematic diagram of light path magnification.
Embodiment
Below in conjunction with Figure of description 3 to 8, introduce the utility model embodiment.
Polarization 3D system based on Polarization recovery described in the utility model is made of light splitting piece 1, light path regulator group 2, lower polaroid 3, screen 4, catoptron 5, upper polarizer 6.From the light of projector's transmission, the one tunnel projects in the screen 4 through light path regulator group 2, lower polarization 3 through light splitting piece 1; Another group is refracted to light on the catoptron 5 through light splitting piece 1, projects in the screen through upper polaroid 6.
The adjustment of 2 pairs of lower light paths of light path regulator group as shown in Figure 8.Light path regulator group 2 can be a light path regulator, also can be a plurality of light path regulators, is for the device of regulating light path image size, realizes the magnification in the light path is adjusted in optical application.
Polarization 3D system based on Polarization recovery described in the utility model, basic functional principle is as described below.
As shown in Figure 3, for common polarized light 3D system, the mixed polarized light that projector sends is got on the polaroid, and P light is got in the screen 4 by polaroid, and S light then is polarized sheet and reflects, and in whole light path, S light is wasted.Therefore the brightness of visible light only has through before the polarized light half in the actual screen 4.
As shown in Figure 4, traditional polarization type 3D imaging meeting has very lossy to light, and then affects presenting of euphorosia degree that spectators watch and image level.Spectators feel that the movie screen picture is dim, do not see details, wear for a long time the problems such as eyes discomfort, fatigue.3D system based on Polarization recovery described in the utility model can be the light efficiency recycling that originally consumes in making polarized light, and bright loss is reduced to minimum.
The technical solution of the polarization 3D system based on Polarization recovery described in the utility model, after the mixed polarized light that projector sends passes through first light splitting piece 1, mixed polarized light is divided into P light and S light, P light is directly by light splitting piece 1, get in the screen 4 through behind the polaroid, S light is by upwards reflection of light splitting piece 1, behind top catoptron 5 as shown in Figure 4, project in the screen 4 through polaroid, just the S light of wasting among original Fig. 3 is recycled again.Recycling through this, can bring up to significantly the light intensity that projects on the polaroid, the brightness of the polarized light of process polaroid output just can double like this.
In the utility model, the luminance level of supposing the 2D motion picture projection is eyes 100%, then the theoretical boundary in the 3D system is that every eyes are 50%, the 3D equipment that sell the market generally can only reach every eyes 10%-17%, the light efficiency recycling that consumes in the polarized light, light efficiency provides nearly 30% by smooth retracting device described in the utility model.
The utility model overlaps principle as shown in Figure 5 based on the picture of the polarization 3D system of Polarization recovery, by adjusting the angle of catoptron in the upper light path, so that the hot spot that projects in the screen 4 by light path up and down overlaps.Usually, out the diverging light that only has certain angle from projector, and in the utility model, the situation that upper light path and lower light path exist optical path length to differ, when upper light path and lower light path are adjusted picture and are overlapped in screen 4, after central point overlaps, can in screen 4, present the light path hot spot that projects screen 4 project the hot spot of screen 4 greater than lower light path, the coincidence effect of two hot spots in screen 4 looks to be exactly that large spot surrounds small light spot, the large phenomenon of scheming the little figure of cover that Here it is, as shown in Figure 6.Polarization 3D system based on Polarization recovery described in the utility model solves the phenomenon of the little figure of large figure cover, namely in lower light path, added a light path regulator group 2, be used for adjusting the dispersion angle of lower light path light, so that the hot spot of light path projection can overlap with the hot spot of upper light path in screen 4 down, as shown in Figure 7.
The adjustment of 2 pairs of lower light paths of light path regulator group described in the utility model as shown in Figure 8.Light path regulator group 2 is a kind of devices for regulating light path image size.Realize the magnification in the light path is adjusted in optical application.
The utility model is not limited to above-mentioned embodiment, in the situation that do not deviate from flesh and blood of the present utility model, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present utility model.
Claims (3)
1. polarization 3D system based on Polarization recovery, it is characterized in that it is comprised of light splitting piece, light path regulator group, lower polaroid, screen, catoptron, upper polarizer, from the light of projector's transmission, the one tunnel projects in the screen through light splitting piece, light path regulator group, lower polaroid; Another road is refracted on the catoptron through light splitting piece, is refracted to the light on the catoptron, projects in the screen through upper polaroid again.
2. as claimed in claim 1 based on the polarization 3D system of Polarization recovery, the light path regulator that it is characterized in that the light path regulator group is one, is used for regulating the size of light path image, realizes the adjustment to the magnification in the light path.
3. as claimed in claim 1 based on the polarization 3D system of Polarization recovery, it is characterized in that, the light path regulator of light path regulator group is a plurality of, is used for regulating the size of light path image, realizes the adjustment to the magnification in the light path.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201811902U CN203204298U (en) | 2013-04-11 | 2013-04-11 | Polarized 3D system based on polarization recovery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013201811902U CN203204298U (en) | 2013-04-11 | 2013-04-11 | Polarized 3D system based on polarization recovery |
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| CN203204298U true CN203204298U (en) | 2013-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217863A (en) * | 2013-04-11 | 2013-07-24 | 雷欧尼斯（北京）信息技术有限公司 | Polarization three-dimensional (3D) system based on polarized light recycling |
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2013
- 2013-04-11 CN CN2013201811902U patent/CN203204298U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217863A (en) * | 2013-04-11 | 2013-07-24 | 雷欧尼斯（北京）信息技术有限公司 | Polarization three-dimensional (3D) system based on polarized light recycling |
| CN103217863B (en) * | 2013-04-11 | 2015-10-21 | 雷欧尼斯（北京）信息技术有限公司 | A kind of polarization 3D system based on Polarization recovery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20151021 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |