CN207557642U - A kind of oriented light-guiding device of projection device - Google Patents
A kind of oriented light-guiding device of projection device Download PDFInfo
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- CN207557642U CN207557642U CN201721612892.6U CN201721612892U CN207557642U CN 207557642 U CN207557642 U CN 207557642U CN 201721612892 U CN201721612892 U CN 201721612892U CN 207557642 U CN207557642 U CN 207557642U
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- screen
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- projection
- guiding
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Abstract
A kind of oriented light-guiding device of projection device, by setting the oriented light-guiding film made using optics polarisation principle on the projection screen, make the light of projection screen can only pass through in vertical direction, the scattering light in elimination of level direction, the light of projection screen is solved well to the interference problem of imaging viewing, improves whole viewing effect.
Description
Technical field
The utility model is related to physical field more particularly to optical technology, particularly a kind of oriented light-guiding of projection device
Device.
Background technology
Screen prjection is that the source images on screen are projected to the technology watched on transparent imaging screen, in line holographic projections and
Automobile new line display field is often used.Since screen is illuminator, the image and light on surface can be on viewing imaging screens
Image generates interference, thus is also difficult to show quality, common solution by improving source images brightness to promote imaging screen
It is setting barn door to stop the light of screen, but entity barn door also has unfavorable shadow for the viewing range for watching imaging screen
It rings.
Invention content
The purpose of this utility model is that for drawbacks described above of the prior art, provide it is a kind of easy to process, it is at low cost
The oriented light-guiding device of honest and clean projection device.
Its main operational principle is the oriented light-guiding film that setting is made using optics polarisation principle on the projection screen, makes throwing
The light of shadow screen can only pass through in vertical direction, the scattering light in elimination of level direction, avoid to viewing imaging screen image production
Raw interference.
To achieve the above object, the present invention uses following technical scheme：The oriented light-guiding device of projection device, including projection
Screen and be in therewith mirror image structure imaging screen, which is characterized in that the projection screen surface sets oriented light-guiding film layer.
Further, the oriented light-guiding film layer is polarisation peep-proof film.
Further, the polylith screen that the projection screen is splicing, combines.
Further, the imaging screen is the pyramid shape four sides imaging screen that four isosceles trapezoid transparent materials are spliced into.
Further, the oriented light-guiding film layer is the four sides peep-proof film of horizontal direction gamut peep-proof.
The utility model compares with prior art, and effect is actively and it will be evident that the utility model is led by orientation
The use of light film layer solves interference problem of the light to imaging viewing of projection screen well, improves whole viewing effect
Fruit.
Description of the drawings
Fig. 1 is the structural front view of the utility model.
Fig. 2 is the structure diagram of the utility model.
Specific embodiment
Embodiment:
As shown in Figure 1, a kind of oriented light-guiding device of projection device, including projection screen 1 and therewith in mirror image knot
The imaging screen 2 of structure, which is characterized in that the projection screen surface setting oriented light-guiding film layer 3 passes through oriented light-guiding film layer
The light of projection screen is only capable of then being blocked by reaching imaging screen, the light of horizontal direction in vertical direction, thus will not be right
Viewer positioned at projection screen horizontal side has an impact, and is conducive to project into be promoted by improving the brightness of projection screen
Image quality amount, while it is only capable of seeing that the image on imaging screen can also increase mystique and technology sense.
Further, the oriented light-guiding film layer is polarisation peep-proof film, and the performance of peep-proof film currently on the market is only just
It is visible area in the range of 60 degree of face, actual demand can be met substantially.
Further, the polylith screen that the projection screen is splicing, combines, can carried by multi-screen splicing
Height reduces cost while showing picture size.
Further, as shown in Fig. 2, the imaging screen is the pyramid shape four that four isosceles trapezoid transparent materials are spliced into
Face imaging screen 4 can make viewer see hologram in rectangular pyramid from the image that four direction is projected to four sides imaging screen, real
Existing line holographic projections.
Further, as shown in Fig. 2, the oriented light-guiding film layer 3 is the four sides peep-proof of horizontal direction gamut peep-proof
Film since viewer can move in the horizontal direction around four sides imaging screen when watching line holographic projections, thus passes through and sets level side
Ideal viewing effect is can be only achieved to the four sides peep-proof film of gamut peep-proof.
Claims (5)
- It is in the imaging screen of mirror image structure including projection screen and therewith 1. a kind of oriented light-guiding device of projection device, It is characterized in that, the projection screen surface is provided with oriented light-guiding film layer.
- 2. the oriented light-guiding device of projection device as described in claim 1, which is characterized in that the oriented light-guiding film layer is polarisation Peep-proof film.
- 3. the oriented light-guiding device of projection device as described in claim 1, which is characterized in that the projection screen is splicing, group The polylith screen being combined.
- 4. the oriented light-guiding device of projection device as described in claim 1, which is characterized in that the imaging screen is four isosceles ladders The pyramid shape four sides imaging screen that shape transparent material is spliced into.
- 5. the oriented light-guiding device of projection device as claimed in claim 4, which is characterized in that the oriented light-guiding film layer is water Square to gamut peep-proof four sides peep-proof film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612892.6U CN207557642U (en) | 2017-11-28 | 2017-11-28 | A kind of oriented light-guiding device of projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612892.6U CN207557642U (en) | 2017-11-28 | 2017-11-28 | A kind of oriented light-guiding device of projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557642U true CN207557642U (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721612892.6U Active CN207557642U (en) | 2017-11-28 | 2017-11-28 | A kind of oriented light-guiding device of projection device |
Country Status (1)
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| CN (1) | CN207557642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256067A (en) * | 2018-10-15 | 2019-01-22 | 惠州市华阳多媒体电子有限公司 | A kind of vehicle-mounted holographic projection system at big visual angle |
| CN109345962A (en) * | 2018-11-27 | 2019-02-15 | 赵钰瀚 | A kind of optical fiber light-guiding large-screen device |
-
2017
- 2017-11-28 CN CN201721612892.6U patent/CN207557642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256067A (en) * | 2018-10-15 | 2019-01-22 | 惠州市华阳多媒体电子有限公司 | A kind of vehicle-mounted holographic projection system at big visual angle |
| CN109345962A (en) * | 2018-11-27 | 2019-02-15 | 赵钰瀚 | A kind of optical fiber light-guiding large-screen device |
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