CN204989737U - Short focus projection arrangement - Google Patents
Short focus projection arrangement Download PDFInfo
- Publication number
- CN204989737U CN204989737U CN201520505228.6U CN201520505228U CN204989737U CN 204989737 U CN204989737 U CN 204989737U CN 201520505228 U CN201520505228 U CN 201520505228U CN 204989737 U CN204989737 U CN 204989737U
- Authority
- CN
- China
- Prior art keywords
- projector
- short focus
- scanning galvanometer
- projection arrangement
- focus projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Abstract
The utility model relates to a projection display equipment, concretely relates to short focus projection arrangement. Short focus projection arrangement include and the projector be provided with the scanning galvanometer on the emitting light path of projector. Projection display equipment, have resolution ratio height, simple structure, installation and convenient to use, range of application advantage such as wide, with low costs.
Description
Technical field
The utility model relates to projection display equipment, is specifically related to a kind of short focus projection arrangement.
Background technology
Projector is the electrical equipment projecting the projection light that the vision signal that provided by outside converts, and it is as the large picture display device of one, and developed for many years in world market, technology is constantly brought forth new ideas.Projector's product, from being applied to education sector at first, develops to multiple fields such as commercial affairs, engineering, family expenses gradually.Abundanter along with application, the demand of specialty of user to projected picture and application scenarios is more harsh, and the short focus projector almost can " pasting wall to use " relies on its outstanding projection ratio and ease for use, progressively becomes the focus that market is paid close attention to.
If short focus projector of today will improve resolution, need to improve LCD (LiquidCrystalDisplay, liquid crystal display), LCOS (LiquidCrystalonSilicon, liquid crystal on silicon) or DLP (DigitalLightProcession, digital light process) resolution, this needs very high technology content, is difficult to realize.
Therefore, invention is a kind of uses existing short focus projector, and has more high-resolution projection display equipment and become a problem demanding prompt solution.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of high resolving power short focus projection display equipment of easy realization.
This utility model includes projector, and is provided with scanning galvanometer on the emitting light path of projector.
Preferably, described projector is short focus projector.
Preferably, described scanning galvanometer comprises reflecting surface and motor; Preferred further, described reflecting surface is plane or curved surface.Described scanning galvanometer can be set as lateral probe movement pattern and upper and lower scan pattern.
Preferably, described scanning galvanometer quantity is 1 ~ 2; When scanning galvanometer is one, be set as lateral probe movement pattern or upper and lower scan pattern; When scanning galvanometer is two, one is set as lateral probe movement pattern, and another is set as upper and lower scan pattern.
The beneficial effects of the utility model are, provide a kind of short focus projection display equipment, use existing short focus projector, utilize scanning galvanometer to improve resolution of displayed images, have that structure is simple, easy to install and use, applied range, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the structural representation of projection display equipment described in embodiment 1;
Fig. 2 (a) is the structural representation of projection display equipment midplane scanning galvanometer described in the utility model;
Fig. 2 (b) is the structural representation of projection display equipment mean camber scanning galvanometer described in the utility model;
Fig. 3 is projection display equipment exit image schematic diagram described in embodiment 1;
The structural representation that Fig. 4 is projection display equipment described in embodiment 2 and exit image schematic diagram;
Fig. 5 is the procedure for displaying process flow diagram of projection display equipment described in embodiment 2;
Number in the figure:
1-projector; 2-scanning galvanometer; 21-reflecting surface; 22-motor; 2-1-first scanning galvanometer; 2-2-second scanning galvanometer; T1-time point 1; T2-time point 2; T3-time point 3; T4-time point 4; A, B, C, D, E, F-show image.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, to understand the utility model better.
Embodiment 1
As shown in Figure 1,1 is projector, and 2 is scanning galvanometer, and scanning galvanometer 2 is arranged in the emitting light path of projector 1, reflects emergent ray, and the reflection ray of scanning galvanometer 2 finally forms image on screen.Scanning galvanometer 2, as shown in Fig. 2 (a) He Fig. 2 (b), is made up of reflecting surface 21 and motor 22, and wherein reflecting surface 21 can be the plane shown in Fig. 2 (a), also can be the curved surface shown in Fig. 2 (b).
In the present embodiment, reflecting surface 21 is plane, and scanning galvanometer 2 is set as lateral probe movement pattern.
In time between time point t1 to t2, the emergent ray of projector 1 forms display image A through the reflective projection of scanning galvanometer 2 to screen; At time point t2, the emergent ray of projector 1 forms display image B through the reflective projection of scanning galvanometer 2 to screen.The time interval length of the adjustment sweep velocity of scanning galvanometer 2 and t1 and t2 of projector 1 exit image, can make the edge showing image A and display image B just overlap, as shown in Figure 3.
When t1 and t2 the time interval very in short-term, due to display image A residual of human eye retina, can think that a width comprises the complete image of display image A and display image B.In the present embodiment, this time interval is set smaller than 50ms.When showing image B with when the time interval of piece image is less than 100ms under display, what human eye was seen is consecutive image.
In the present embodiment, projector 1 uses traditional short focus projector, and the projects images resolution of its script is 1920 × 1080.When picture size is constant, use design of the present utility model can allow the increase resolution to 3072 on its horizontal direction (long limit).
Embodiment 2
As shown in Figure 4, be provided with two scanning galvanometers (2-1,2-2) in the emitting light path of projector 1 in the present embodiment, scanning galvanometer 2-1 is set to lateral probe movement pattern, and scanning galvanometer 2-2 is set to upper and lower scan pattern, and reflecting surface 21 is all plane.
It is C, D, E, F that projector 1 changes projection-display image successively at time point t1 ~ t4, time interval length between the sweep velocity of adjustment scanning galvanometer 2-1,2-2 and time point t1 ~ t4, the edge showing image C, D, E, F can be made just to overlap, as shown in Figure 4.
When time point t1 ~ t4 the time interval very in short-term, human eye can think that a width comprises the complete image of display image C, D, E, F.In the present embodiment, this time interval is set smaller than 16ms, and what show four width images like this T.T. is less than 48ms.When showing image F with when the time interval of piece image is less than 100ms under display, what human eye was seen is consecutive image.
The procedure for displaying process flow diagram that Fig. 5 is projection display equipment described in the present embodiment, original image information is input in the graphics processing unit in projector 1, and graphics processing unit is by original Image Segmentation Using; In the present embodiment, original piece image is split into four width images, namely shows image C, D, E, F, and is converted to emergent ray projection at time point t1, time point t2, time point t3 and time point t4 by display chip respectively.
In the present embodiment, projector 1 uses traditional short focus projector, and the projects images resolution of its script is 1920 × 1080.When picture size is constant, use design of the present utility model can allow the increase resolution to 3072 on its horizontal direction (long limit), the resolution of vertical direction (minor face) can be promoted to 1728.
Above content is only to embodiment example of the present utility model and explanation; what should indicate is; according to conception of the present utility model above-mentioned embodiment modified or supplement or adopt similar mode to substitute; its function produced do not exceed that instructions and accompanying drawing contain yet spiritual time, all should within protection domain of the present utility model.
Claims (5)
1. a short focus projection arrangement, described short focus projection arrangement comprises projector, it is characterized in that: the emitting light path of projector is provided with scanning galvanometer.
2. short focus projection arrangement according to claim 1, is characterized in that: described projector is short focus projector.
3. short focus projection arrangement according to claim 1, is characterized in that: described scanning galvanometer comprises reflecting surface and motor.
4. short focus projection arrangement according to claim 3, is characterized in that: described reflecting surface is plane or curved surface.
5. short focus projection arrangement according to claim 1, is characterized in that: described scanning galvanometer quantity is 1 ~ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505228.6U CN204989737U (en) | 2015-07-13 | 2015-07-13 | Short focus projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505228.6U CN204989737U (en) | 2015-07-13 | 2015-07-13 | Short focus projection arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989737U true CN204989737U (en) | 2016-01-20 |
Family
ID=55124089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520505228.6U Active CN204989737U (en) | 2015-07-13 | 2015-07-13 | Short focus projection arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989737U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842971A (en) * | 2016-05-27 | 2016-08-10 | 华为技术有限公司 | Projection device and method |
| CN106200240A (en) * | 2016-07-13 | 2016-12-07 | 深圳市华星光电技术有限公司 | Projection arrangement and system |
| CN109725428A (en) * | 2019-02-26 | 2019-05-07 | 浙江理工大学 | A kind of light field display methods and light field display engine |
-
2015
- 2015-07-13 CN CN201520505228.6U patent/CN204989737U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842971A (en) * | 2016-05-27 | 2016-08-10 | 华为技术有限公司 | Projection device and method |
| CN105842971B (en) * | 2016-05-27 | 2018-05-11 | 华为技术有限公司 | A kind of projection arrangement and method |
| EP3270223A4 (en) * | 2016-05-27 | 2018-05-30 | Huawei Technologies Co., Ltd. | Projection apparatus and method |
| CN106200240A (en) * | 2016-07-13 | 2016-12-07 | 深圳市华星光电技术有限公司 | Projection arrangement and system |
| CN109725428A (en) * | 2019-02-26 | 2019-05-07 | 浙江理工大学 | A kind of light field display methods and light field display engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204989737U (en) | Short focus projection arrangement | |
| TW580829B (en) | Real size display system | |
| CN103309136B (en) | Exhibiting device | |
| US20200363707A1 (en) | Optical device, method for controlling optical device, and image display apparatus | |
| CN103903519A (en) | Television wall and black frame eliminating structure thereof | |
| US20090207189A1 (en) | Display apparatus and method for processing image object | |
| CN104849950A (en) | Projection system and projection method thereof | |
| CN104183223A (en) | Display device, driving device and driving method | |
| CN103903518A (en) | Television wall and black frame eliminating lens thereof | |
| CN201773566U (en) | LCD (liquid crystal display) turnoff residual shadow eliminator and LCD | |
| CN104020564B (en) | Collapsible head-mounted display apparatus based on mobile device and foldable substrate thereof | |
| KR20150062952A (en) | Laser projector with position detecting capability and position detection method using the same | |
| CN104143303A (en) | Any-order checker board image assembly generating method based on FPGA | |
| CN201654743U (en) | Non-projection electronic whiteboard | |
| CN209641099U (en) | A kind of electronic blackboard and tutoring system | |
| CN203059694U (en) | Magnetic resonance equipment and display system inside detecting aperture of same | |
| US10921683B2 (en) | Optical device, method for controlling optical device, and image display apparatus | |
| CN203858609U (en) | Wall surface integrated electronic white board | |
| CN203399226U (en) | Projection image merging device | |
| CN203889840U (en) | Lift well with image display | |
| CN203117593U (en) | Liquid crystal display module and liquid crystal television | |
| JPS62266980A (en) | Picture projecting system | |
| CN207173119U (en) | Nanometer touch-control blackboard and interactive intelligent blackboard | |
| CN105162927B (en) | Alignment method, Projection Display module and the mobile electronic device of multiple projected images | |
| CN202383350U (en) | Six-chip type projection lens module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |