CN203551941U - Dual optical path polarized image converter - Google Patents
Dual optical path polarized image converter Download PDFInfo
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- CN203551941U CN203551941U CN201320626398.0U CN201320626398U CN203551941U CN 203551941 U CN203551941 U CN 203551941U CN 201320626398 U CN201320626398 U CN 201320626398U CN 203551941 U CN203551941 U CN 203551941U
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Abstract
This utility model discloses a dual optical path polarized image converter, comprising a polarized lens, a half-wave plate, a first foldable lens, a second foldable lens, a third foldable lens, and a polarized switch. The polarized lens, the half-wave plate and the first foldable lens are arranged in a same vertical direction and arranged from the bottom to the top successively; the inclined angle between the polarized lens and the horizontal plane is identical to the inclined angle between the first foldable lens and the horizontal plane; the half-wave plate is in the same plane with the horizontal plane; the second foldable lens is in the same horizontal direction with the polarized lens and the sum of the inclined angle between the second foldable lens and the horizontal plane and the inclined angle between the polarized lens and the horizontal plane is 180 degrees; the polarized switch is positioned between the polarized lens and the second foldable lens and in the same plane with the vertical plane; the third foldable lens is in the same vertical direction with the second foldable lens, and the inclined angle between the third foldable lens and the horizontal plane is identical to the inclined angle between the second foldable lens and the horizontal plane. The dual optical path polarized image converter can increase the contrast and brightness of the screen so as to realize more bright color when people are watching 3D images. The image outputted to the screen is brighter and the watching experience of user is improved.
Description
Technical field
The utility model relates to image display manufacturing technology field, particularly relates to a kind of double light path polarization video conversion machine.
Background technology
In the prior art, film projection system mainly comprises that a server for outputting video signal, monochromatic light road video conversion machine and one show (DCI standard) the DCI standard digital projector (referring to Fig. 1) on screen by vision signal.
In concrete structure, monochromatic light road video conversion machine is by 1 projector, after the synchronous conversion of two groups of films that two video cameras are taken, according to the priority playing sequence of right and left eyes image, by monochromatic light road video conversion machine, carry out film 120hz and drive suitching type projection, these slightly differentiated two width image high-frequencies are shown in turn in screen.But after polarized lenses in the video conversion machine of monochromatic light road projects in screen after a part of light beam is seen through, another part light beam is but polarized lens reflecting and has disposed, original beam will lose a part of light beam like this, therefore cause the brightness of screen not high, the technological deficiency that bright and new degree declines.
Utility model content
The utility model provides a kind of double light path polarization video conversion machine, not high in order to overcome the brightness of screen of the prior art, degradation technical matters under bright and new degree.
Based on the problems referred to above, the utility model also provides a kind of double light path polarization video conversion machine, comprises polarized lenses, half-wave plate, the first folding eyeglass, polarization switch and the second folding eyeglass and the 3rd folding eyeglass, wherein:
Described polarized lenses, half-wave plate and the first folding eyeglass all on same vertical direction, and set gradually from bottom to top, and the angle of inclination between described polarized lenses and the first folding eyeglass and surface level all equates; Described half-wave plate and surface level are coplanar;
The described second folding eyeglass and described polarized lenses in same level direction, and and surface level between angle of inclination sum be 180 degree; Described polarization switch is arranged between described polarized lenses and the described second folding eyeglass, and coplanar with perpendicular;
The described the 3rd folding eyeglass with the described second folding eyeglass in same vertical direction, and and surface level between angle of inclination all equate, the described the 3rd folding eyeglass is positioned at second and folds below eyeglass.
The beneficial effects of the utility model comprise:
A kind of double light path polarization video conversion machine that the utility model provides, analysis said structure is known: by double light path polarization video conversion machine, be connected with DCI digital projector, when projection 3D film, by right and left eyes picture, by different image transmission Pipeline transports, to polarized lenses, (after polarized lenses effect, a part of light beam reflexes in screen through the second folding eyeglass and the 3rd folding eyeglass after seeing through through polarized lenses more respectively; Another part light beam is through polarized lenses reflection, through half-wave plate, process through the first folding lens reflecting to screen again), the light beam that original like this projection beam part is polarized lens reflecting has been incident upon in screen again again, can ensure like this brightness in screen and improve the bright and new degree of screen, when thereby 3D image is watched in realization, color is more bright and new, export image in screen to more highlighted, and then promote user's the experience of viewing and admiring.
Accompanying drawing explanation
Fig. 1 is the structural representation of polarization video conversion machine in monochromatic light road in prior art;
The structural principle schematic diagram of the double light path polarization video conversion machine that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with Figure of description, the embodiment of the double light path polarization video conversion machine that the utility model is provided describes.
Referring to Fig. 2, the utility model embodiment provides a kind of double light path polarization video conversion machine 1, comprises polarized lenses 212, half-wave plate 214, the first folding eyeglass 216, polarization switch 220 and the second folding eyeglass 232 and the 3rd folding eyeglass 234, wherein:
Described polarized lenses 212 is arranged on a side of projector camera lens 222; Described polarized lenses 212, half-wave plate 214 and the first folding eyeglass 216 all on same vertical direction, and set gradually from bottom to top, and the angle of inclination between described polarized lenses 212 and the first folding eyeglass 216 and surface level all equates; Described half-wave plate 214 is coplanar with surface level;
The described second folding eyeglass 232 with described polarized lenses 212 in same level direction, and and surface level between angle of inclination sum be 180 degree (i.e. the second angle supplementary angles each other that fold between eyeglass 232 and polarized lenses 212 and surface level); Described polarization switch 220 is arranged between described polarized lenses 212 and the described second folding eyeglass 232, and coplanar with perpendicular;
The described the 3rd folding eyeglass 234 with the described second folding eyeglass 232 in same vertical direction, and and surface level between angle of inclination all equate, the described the 3rd folding eyeglass 234 is positioned at second and folds eyeglass 232 belows.
In the utility model embodiment, by double light path polarization video conversion machine, be connected with DCI digital projector, when projection 3D film, by right and left eyes picture, by different image transmission Pipeline transports, to polarized lenses, (after polarized lenses effect, a part of light beam reflexes in screen 230 through the second folding eyeglass and the 3rd folding eyeglass after seeing through through polarized lenses more respectively; Another part light beam is through polarized lenses reflection, through half-wave plate 214, process through the first folding lens reflecting to screen again), the light beam that original like this projection beam part is polarized lens reflecting has been incident upon in screen again again, can ensure like this brightness in screen and improve the bright and new degree of screen, when thereby 3D image is watched in realization, color is more bright and new, export image in screen to more highlighted, and then promote user's the experience of viewing and admiring.
Analyzing dual circuit polarization video conversion machine principle is: the light beam in different polarization states that sends dispersion by projector camera lens, wherein the light beam of a polarization is incident upon on the second folding eyeglass 232 through polarized lenses 212, projecting by the refraction of the second folding eyeglass 232 on the 3rd folding eyeglass 234, after the beam direction conversion by the 3rd folding eyeglass 234, invest in screen.The light beam of another polarization state that can not be refracted away by polarized lenses 212 is by carrying out on half-wave plate 214 after light wave angular transition, reflects after being refracted on the first folding eyeglass 216 through the first folding eyeglass 216, is mapped in screen.The light beam in different polarization states that camera lens sends like this, is all projected onto in screen, and then has strengthened the bright and new degree of image in screen.
The concrete structure of the double light path polarization image transforming machine below the utility model embodiment being related to is described further:
Preferably,
Angle of inclination between described polarized lenses 212 and the first folding eyeglass 216 and surface level is 45 degree.
Preferably,
Angle of inclination between the described the 3rd folding eyeglass 234 and the described second folding eyeglass 232 and surface level is 45 degree.
Preferably,
The front of described polarized lenses 212 is provided with the very thin coat of metal.
It should be noted that, the coat of metal in the utility model embodiment on polarized lenses can strengthen its surface reflectivity of its polarized lenses.
Preferably,
Described polarization switch is liquid crystal phase delay device.
It should be noted that, half-wave plate can be rotated polarized light.Because linearly polarized light impinges perpendicularly on half-wave plate, transmitted light is still linearly polarized light, if the angle between vibration plane and principal section of crystal is θ during incident, the vibration plane of the linearly polarized light transmitting turns over 2 θ angles from original orientation.Half-wave plate can be realized further processing like this.Then after the first folding eyeglass through polarization switch effect (linearly polarized light is converted into circularly polarized light processing).
In addition, if the broadcasting form in conventional art is watched for a long time, can cause spectators and produce the dizzy or eye focusing nerve pain of head, severe one there will be short-term eye-blurred.But in the related double light path polarization video conversion machine structure of the utility model embodiment, in movie process, adopting double light path polarization video conversion machine that right and left eyes image is carried out to film transmission demonstration by different pipelines shows by means of screen, reduced ghost image degree, can effectively avoid causing human body discomfort in film right and left eyes image switching process.
Double light path polarization video conversion machine of the present utility model, at least tool has the following advantages:
The double light path polarization video conversion machine that the utility model embodiment relates to can have good optimizational function to brightness and the ghost image degree of projector image when showing 3D picture.
The double light path polarization video conversion machine that the utility model embodiment relates to can ensure the brightness in screen and improve the bright and new degree of screen, when thereby 3D image is watched in realization, color is more bright and new, export image in screen to more highlighted, and then promote user's the experience of viewing and admiring.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a double light path polarization video conversion machine, is characterized in that, comprises polarized lenses, half-wave plate, the first folding eyeglass, polarization switch and the second folding eyeglass and the 3rd folding eyeglass, wherein:
Described polarized lenses, half-wave plate and the first folding eyeglass all on same vertical direction, and set gradually from bottom to top, and the angle of inclination between described polarized lenses and the first folding eyeglass and surface level all equates; Described half-wave plate and surface level are coplanar;
The described second folding eyeglass and described polarized lenses in same level direction, and and surface level between angle of inclination sum be 180 degree; Described polarization switch is arranged between described polarized lenses and the described second folding eyeglass, and coplanar with perpendicular;
The described the 3rd folding eyeglass with the described second folding eyeglass in same vertical direction, and and surface level between angle of inclination all equate, the described the 3rd folding eyeglass is positioned at second and folds below eyeglass.
2. double light path polarization video conversion machine according to claim 1, is characterized in that,
Angle of inclination between described polarized lenses and the first folding eyeglass and surface level is 45 degree.
3. double light path polarization video conversion machine according to claim 2, is characterized in that,
Angle of inclination between the described the 3rd folding eyeglass and the described second folding eyeglass and surface level is 45 degree.
4. double light path polarization video conversion machine according to claim 3, is characterized in that,
The front of described polarized lenses is provided with the coat of metal.
5. double light path polarization video conversion machine according to claim 1, is characterized in that,
Described polarization switch is liquid crystal phase delay device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626398.0U CN203551941U (en) | 2013-10-11 | 2013-10-11 | Dual optical path polarized image converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626398.0U CN203551941U (en) | 2013-10-11 | 2013-10-11 | Dual optical path polarized image converter |
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| Publication Number | Publication Date |
|---|---|
| CN203551941U true CN203551941U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320626398.0U Expired - Fee Related CN203551941U (en) | 2013-10-11 | 2013-10-11 | Dual optical path polarized image converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698734A (en) * | 2015-03-26 | 2015-06-10 | 深圳市乐视环球科技有限公司 | 3D projection conversion device |
-
2013
- 2013-10-11 CN CN201320626398.0U patent/CN203551941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698734A (en) * | 2015-03-26 | 2015-06-10 | 深圳市乐视环球科技有限公司 | 3D projection conversion device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |