CN107688276A - A kind of parallel projection device - Google Patents
A kind of parallel projection device Download PDFInfo
- Publication number
- CN107688276A CN107688276A CN201710880117.7A CN201710880117A CN107688276A CN 107688276 A CN107688276 A CN 107688276A CN 201710880117 A CN201710880117 A CN 201710880117A CN 107688276 A CN107688276 A CN 107688276A
- Authority
- CN
- China
- Prior art keywords
- speculum
- adjustment mechanism
- projector
- projection device
- parallel 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of parallel projection device, including support, projector, side plate, speculum, inclination adjustment mechanism, speculum arc adjustment mechanism, the projector is located on support, side plate is erected in projector, speculum is connected and at an angle with projector horizontal plane with side plate, inclination adjustment mechanism and speculum the arc adjustment mechanism is arranged at mirror back surface, it is characterized in that, the speculum arc adjustment mechanism includes sucker, jump ring, mirror mount, adjusting nut, the inclination adjustment mechanism includes rotating shaft, regulation handle.The parallel projection device of the present invention has the characteristics of projection is than small, imaging clearly, can meet the use of some specific small spaces.
Description
Technical field
The present invention relates to optical projection system, and in particular to a kind of parallel projection device.
Background technology
Current optical projection system mainly includes two ways, and one kind is mounted on ceiling, in a manner of level projects
Projection is influenceed on projection screen or wall；Another kind is disposed on desktop projecting image in a manner of the elevation angle projects.First
Kind it is applied to large conference room, is applied to small indoor, such as office, meeting room second, but more often, it is necessary to narrow
Small space projection image, but can not ensure to reserve enough length between projecting apparatus and projection screen, it can not also ensure into
The definition of picture.
And it is existing projection than less than 0.3 focus projector including the wide-angle with primary event mirror focus projector with
Short projection distance, but because the change of any light path of the relation of tight shot must assure that image to the distance (T1) of projector,
And the proportionate relationship of the vertical range (T2) from image base to projector's extended line, it otherwise can cause to deform；It is and because burnt
Away from short, the change of any small disproportional causes the variable geometry formula of deformation to expand, and causes projection ray's energy loss excessive.
It is general to be led using the way for vertically adding one or two plate plane speculums before projector lens, this mode in order to reduce T1
The result of cause is：Although T1 distance reduces, but the area of speculum still exists, and in practice, glass is dimmed when using
When glass is as back projection imaging medium, after dimming glass is powered and transparent situation is presented, it can be seen that speculum, unsightly, lose
Using the meaning of dimming glass.
There is a kind of mode tiltedly to add two plate plane speculums using being leaned forward in projector lens in addition, it reduces T1's
Distance, also reduces the area of speculum, but generates excessive deformation, even if after adding correction, picture dimension is reduced, bright
Degree loss is excessive, limits application scenarios.
The content of the invention
In order to solve the deficiencies in the prior art, the invention discloses a kind of parallel projection device, has projection than small, imaging
The characteristics of clear, the use of some specific small spaces can be met.
A kind of parallel projection device, including support, projector, side plate, speculum, inclination adjustment mechanism, reflection
Mirror arc adjustment mechanism, the projector are located on support, and side plate is erected in projector, speculum be connected with side plate and with throwing
Shadow machine horizontal plane is at an angle, and inclination adjustment mechanism and speculum the arc adjustment mechanism is arranged at mirror back surface, its
It is characterised by, the speculum arc adjustment mechanism includes sucker, jump ring, mirror mount, adjusting nut, the speculum
Dip angle adjusting mechanism includes rotating shaft, regulation handle.
Wherein, mirror displacements adjustment mechanism is additionally provided between the speculum and side plate, the mirror displacements are adjusted
Complete machine structure includes displacement adjustable plate, fixed screw.
The projection of the projection arrangement is compared less than 0.3.
The inclination adjustment mechanism is used to adjust speculum and α angles formed by projector's horizontal plane.
The speculum arc adjustment mechanism can adjust speculum radian and local surface.
The mirror displacements adjustment mechanism can adjust speculum and move forward and backward.
Compared with prior art, parallel projection device of the present invention changes existing projection than the tight shot less than 0.3
The image of projector is to the distance (T1) of projector, and the ratio of the vertical range (T2) from image base to projector's extended line
Example relation, T2 distance is adjusted using mirror displacements and dip angle adjusting mechanism, adjusts picture dimension size；Utilize speculum arc
Shape adjustment mechanism adjusts speculum radian and local surface reduces deformation.So that the light efficiency and sky of the parallel projection device of the present invention
Between utilization rate improve, meet the use of some specific small spaces.
The speculum arc adjustment mechanism can adjust speculum radian and local surface, be corrected by multinomial adjustment
The deformation of projection-display image.
Brief description of the drawings
The structural representation for the parallel projection device of the present invention that Fig. 1 is；
Fig. 2 is speculum arc adjustment mechanism partial enlarged drawing；
Fig. 3 is mirror displacements and anti-dip angle adjusting mechanism side schematic view；
Fig. 4 is mirror displacements and dip angle adjusting mechanism front schematic view.
1 support in figure, 2 projectors, 3 speculums, 4 inclination adjustment mechanisms, 5 speculum arc adjustment mechanisms, 6 is aobvious
Show region, 7 suckers, 8 jump rings, 9 mirror mounts, 10 adjusting nuts, 11 side plates, 12 displacement adjustable plates, 13 regulation handles, 14
Rotating shaft, 15 fixed screws；
Projector to the distance of viewing area be T1；
Projected image bottom to the vertical range of projector's extended line be T2；
The picture altitude of viewing area is T3；
The distance of speculum and fixed mount is D1.
Embodiment
The present invention will be described below in conjunction with the accompanying drawings, but not as limitation of the present invention.
A kind of parallel projection device, including support 1, projector 2, side plate 11, speculum 3, inclination adjustment mechanism
4, speculum arc adjustment mechanism 5, the projector 2 is located on support 1, and side plate 11 is erected in projector 2, speculum 3 with
Side plate 11 is connected and at an angle with projector 2 horizontal plane, and inclination adjustment mechanism 4 and speculum arc adjustment mechanism 5 are set
In the back side of speculum 3, speculum arc adjustment mechanism 5 includes sucker 7, jump ring 8, mirror mount 9, adjusting nut 10, instead
Penetrating mirror dip angle adjusting mechanism 4 includes rotating shaft 14, regulation handle 13.
Wherein, the reflection being made up of displacement adjustable plate 12 and fixed screw 15 is additionally provided between speculum 3 and side plate 11
Mirror shift adjusting machine.
When this parallel projection device works, the light that projector 2 sends projects viewing area 6 through the reflection of speculum 3, profit
Adjustment mechanism is moved with speculum and dip angle adjusting mechanism 4 adjusts the front and back position of α angles and speculum, so as to change T2 distance
Reach the size shift in position of view field with this；By adjusting the adjusting nut 10 at the back side of speculum 3, fine-tuning each point is anti-
The distance D1 of the eyeglass of mirror 3 and mirror mount 9 is penetrated, eyeglass is produced local deformation, realizes the Local uniqueness of image, correction map
The deformation of picture, so as to reach clearly imaging effect.
The projection of this parallel projection device is than being less than 0.3, therefore projector 2 can be very short to the distance T1 of viewing area 6, makes
This parallel projection device can adapt to some specific small spaces, meeting room cubicle etc..
Invention preferred embodiment is the foregoing is only, the claim of the present invention is not thereby limited, so all
Change with the equivalent structure made by description of the invention and diagramatic content, be all contained in protection scope of the present invention.
Claims (6)
1. a kind of parallel projection device, including support, projector, side plate, speculum, inclination adjustment mechanism, speculum
Arc adjustment mechanism, the projector are located on support, and side plate is erected in projector, speculum be connected with side plate and with projection
Machine horizontal plane is at an angle, and inclination adjustment mechanism and speculum the arc adjustment mechanism is arranged at mirror back surface, and it is special
Sign is that the speculum arc adjustment mechanism includes sucker, jump ring, mirror mount, adjusting nut, and the speculum inclines
Angle adjusting mechanism includes rotating shaft, regulation handle.
2. a kind of parallel projection device according to claim 1, it is characterised in that also set between the speculum and side plate
Mirror displacements adjustment mechanism is equipped with, the mirror displacements adjustment mechanism includes displacement adjustable plate, fixed screw.
3. a kind of parallel projection device according to claim 1, it is characterised in that the projection of the projection arrangement is compared and is less than
0.3。
4. a kind of parallel projection device according to claim 1, it is characterised in that the inclination adjustment mechanism is used
In regulation speculum and α angles formed by projector's horizontal plane.
5. a kind of parallel projection device according to claim 1, it is characterised in that the speculum arc adjustment mechanism can
To adjust speculum radian and local surface.
6. a kind of parallel projection device according to claim 2, it is characterised in that the mirror displacements adjustment mechanism can
Moved forward and backward with adjusting speculum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880117.7A CN107688276A (en) | 2017-09-25 | 2017-09-25 | A kind of parallel projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880117.7A CN107688276A (en) | 2017-09-25 | 2017-09-25 | A kind of parallel projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107688276A true CN107688276A (en) | 2018-02-13 |
Family
ID=61156470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880117.7A Pending CN107688276A (en) | 2017-09-25 | 2017-09-25 | A kind of parallel projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107688276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058482A (en) * | 2019-05-21 | 2019-07-26 | 成都极米科技股份有限公司 | Exhibition system and exhibiting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684222Y (en) * | 2004-03-18 | 2005-03-09 | 中强光电股份有限公司 | Projecting unit |
| JP2014048567A (en) * | 2012-09-03 | 2014-03-17 | Ricoh Co Ltd | Projector setting device, projection system, projection image adjustment method, and projection system manufacturing method |
| CN105159015A (en) * | 2015-09-21 | 2015-12-16 | 海信集团有限公司 | Lens assembly |
| CN105911802A (en) * | 2016-06-23 | 2016-08-31 | 海信集团有限公司 | Lens assembly and projector |
| CN207249340U (en) * | 2017-09-25 | 2018-04-17 | 广州艾恩电子有限公司 | Parallel projection device |
-
2017
- 2017-09-25 CN CN201710880117.7A patent/CN107688276A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684222Y (en) * | 2004-03-18 | 2005-03-09 | 中强光电股份有限公司 | Projecting unit |
| JP2014048567A (en) * | 2012-09-03 | 2014-03-17 | Ricoh Co Ltd | Projector setting device, projection system, projection image adjustment method, and projection system manufacturing method |
| CN105159015A (en) * | 2015-09-21 | 2015-12-16 | 海信集团有限公司 | Lens assembly |
| CN105911802A (en) * | 2016-06-23 | 2016-08-31 | 海信集团有限公司 | Lens assembly and projector |
| CN207249340U (en) * | 2017-09-25 | 2018-04-17 | 广州艾恩电子有限公司 | Parallel projection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058482A (en) * | 2019-05-21 | 2019-07-26 | 成都极米科技股份有限公司 | Exhibition system and exhibiting method |
| CN110058482B (en) * | 2019-05-21 | 2024-03-08 | 成都极米科技股份有限公司 | Exhibition system and exhibition method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019144666A1 (en) | Automatic correction method and apparatus for projection picture, and electronic device | |
| US20210223670A1 (en) | Dynamic projection device, method and projector | |
| US6568814B2 (en) | Integrated front projection system with shaped imager and associated method | |
| WO2004062278A1 (en) | Compact integrated front projection system | |
| US20160062218A1 (en) | Optical element adjusting apparatus and projector using the same | |
| US20110051099A1 (en) | Adjusting mechanism, projector, electronic whiteboard, and adjusting methods of projector and electronic whiteboard | |
| CN105867056B (en) | Locking device for projector | |
| JP2013532313A (en) | On-axis projection lens with offset | |
| JP2015215416A (en) | Projector device | |
| US20060028623A1 (en) | Method and system for a thermal architecture and user adjustable keystone in a display device | |
| CN207249340U (en) | Parallel projection device | |
| CN107688276A (en) | A kind of parallel projection device | |
| US2795996A (en) | Optical device for oblique projection apparatus | |
| WO2018036072A1 (en) | Method for projection and projection device | |
| US2320760A (en) | Image producing apparatus | |
| US20220301466A1 (en) | Projection system and stitching method of multiple projection images | |
| CN205608362U (en) | Projector | |
| CN2543303Y (en) | Detecting device of image correction for projector equipment | |
| CN112068391A (en) | Single-chip LCD projection method, projector and optical system thereof | |
| CN108267911A (en) | A kind of projecting apparatus light path system and its distortion compensation method in inclined surface imaging | |
| CN205581504U (en) | Projection angle adjustable projecting apparatus | |
| JP2015072334A (en) | Image projection device support tool | |
| CN206421139U (en) | A kind of two acts of projecting apparatus of a machine | |
| Matsumoto et al. | Ultra-short throw distance front projector with mirror-lens hybrid projection optical system | |
| CN204314598U (en) | A kind of immersion ball screen cinema system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |