CN104360573A - Projection zooming device and projection zooming system - Google Patents
Projection zooming device and projection zooming system Download PDFInfo
- Publication number
- CN104360573A CN104360573A CN201410606799.9A CN201410606799A CN104360573A CN 104360573 A CN104360573 A CN 104360573A CN 201410606799 A CN201410606799 A CN 201410606799A CN 104360573 A CN104360573 A CN 104360573A
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- China
- Prior art keywords
- catoptron
- projection
- projector
- control device
- zoom lens
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- 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
- G03B21/14—Details
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a projection zooming device and a projection zooming system. The projection zooming device is used for being arranged on the outside of a projector, and light rays emitted from the projector can be reflected to a projection screen by the aid of the projection zooming device. The projection zooming device comprises a first reflecting mirror, a second reflecting mirror and a support. The first reflecting mirror and the second reflecting mirror are arranged on the support, the first reflecting mirror is used for reflecting the light rays emitted from the projector to the second reflecting mirror, and the second reflecting mirror is used for reflecting the light rays reflected from the first reflecting mirror to the projection screen. The projection zooming device and the projection zooming system have the advantages that the light rays emitted from the projector can be reflected by the first reflecting mirror and the second reflecting mirror and then can be projected onto the projection screen, so that the distance from the projector to the projection screen can be shortened while the projection quality is unaffected; users can select long-focus projectors which are low in cost, and effects of short-focus projectors can be realized by the long-focus projectors by the aid of the projection zooming device, and accordingly the cost can be saved.
Description
Technical field
The present invention relates to the technical field of image projection, particularly relate to a kind of projection zoom lens control device and system.
Background technology
Projector be a kind of can by image or VIDEO PROJECTION to the equipment on projection screen.The kind of projector has a lot, comprising focal length projector and short focus projector.Projection screen and projector distant, be then applicable to use focal length projector; On the contrary, projection screen and projector's close together are then applicable to using short focus projector.The high expensive of general short focus projector, be but inconvenient to use, and focal length video camera does not have the function closely projected, and therefore, selects to cause puzzlement during projector to user during remote projection.
Summary of the invention
Based on this, be necessary to provide a kind of projection zoom lens control device and the system that can shorten projector and projection screen distance.
A kind of projection zoom lens control device, described projection zoom lens control device is used for being arranged on projector outside, and the light reflection described projector penetrated is to projection screen;
Described projection zoom lens control device comprises the first catoptron, the second catoptron and support;
Described first catoptron and described second catoptron are all arranged on the bracket, described first catoptron is used for light reflection to the second catoptron described projector penetrated, and the light reflection that described second catoptron is used for described first catoptron to reflect is to described projection screen.
Wherein in an embodiment, described first catoptron and/or the rotating setting of described second catoptron are on the bracket.
Wherein in an embodiment, described first catoptron and all rotating setting of described second catoptron are on the bracket.
Wherein in an embodiment, the axis being axially parallel to described second catoptron rotation of described first catoptron rotation.
Wherein in an embodiment, described support comprises the first rotation axis and the second rotation axis, and described first rotation axis is parallel with described second rotation axis;
By the rotating setting of described first rotation axis on the bracket, described second catoptron by the rotating setting of described second rotation axis on the bracket for described first catoptron.
Wherein in an embodiment, described support comprises base, the first support bar and the second support bar, and described first support bar and described second support bar are all positioned on described base;
Described first catoptron is arranged between described first support bar and described second support bar, and described second catoptron is arranged between described first support bar and described second support bar, and described first catoptron is between described second catoptron and described base.
Wherein in an embodiment, the area of described first reflective mirror is less than the area of described second reflective mirror.
Wherein in an embodiment, described first reflective mirror is the one in level crossing, free form surface mirror, convex mirror and concave mirror;
Described second reflective mirror is the one in level crossing, free form surface mirror, convex mirror and concave mirror.
A kind of projection zoom system, pancreatic system, comprises projector and described projection zoom lens control device;
Described first catoptron is used for light reflection to the second catoptron described projector penetrated, and the light reflection that described second catoptron is used for described first catoptron to reflect is to described projection screen.
Wherein in an embodiment, described projector and described projection screen are positioned at the same side of described projection zoom lens control device, or described projector and described projection screen lay respectively at the both sides of described projection zoom lens control device.
Above-mentioned projection zoom lens control device and system, the light of projector's injection passes through the reflection of the first catoptron and the second catoptron, and reprojection, on projection screen, shortens the distance between projector and projection screen, and the quality of projection can not be affected.The focal length projector that user can select price relatively low, makes focal length projector reach the effect of short focus projector by projection zoom lens control device, has saved cost.Meanwhile, achieve dual-use, user need not purchase focal length projector and short focus projector respectively, avoids waste, environmental friendliness.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment projection zoom lens control device;
Fig. 2 is the schematic diagram of an embodiment projection zoom system, pancreatic system.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, projection zoom lens control device and system are described more fully.The first-selected embodiment of projection zoom lens control device and system is given in accompanying drawing.But projection zoom lens control device and system can realize in many different forms, are not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the disclosure of projection zoom lens control device and system more thorough comprehensively.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term just in order to describe specific embodiment used in the instructions of zoom lens control device and system that projects herein, is not intended to be restriction the present invention.
As shown in Figure 1, the projection zoom lens control device 100 of one embodiment comprises the first catoptron 120, second catoptron 140 and support 160, simultaneously see Fig. 2, described projection zoom lens control device 100 is outside for being arranged on projector 200, and the light reflection described projector 200 penetrated is to projection screen 300.Described first catoptron 120 and described second catoptron 140 are all arranged on described support 160, light reflection to the second catoptron 140 of described first catoptron 120 for described projector 200 is penetrated, the light reflection extremely described projection screen 300 of described second catoptron 140 for described first catoptron 120 is reflected.
The light that projector 200 penetrates passes through the reflection of the first catoptron 120 and the second catoptron 140, and reprojection, on projection screen 300, shortens the distance between projector 200 and projection screen 300, and the quality of projection can not be affected.The focal length projector 200 that user can select price relatively low, makes focal length projector 200 reach the effect of short focus projector 200 by projection zoom lens control device 100, has saved cost.Meanwhile, achieve dual-use, user need not purchase focal length projector 200 and short focus projector 200 respectively, avoids waste, environmental friendliness.
Wherein in an embodiment, described first catoptron 120 and described second catoptron 140 can be fixed on support 160, and the angle of the first catoptron 120 and described second catoptron 140 is determined, unadjustable.In preferred embodiment, described first catoptron 120 and described second catoptron 140 is all rotating is arranged on described support 160, thus the angle of light regulating easily.Certainly, in another embodiment, also can be described first catoptron 120 and described second catoptron 140 one of them to be rotatingly arranged on described support 160.
Described first reflective mirror and described second reflective mirror can be all the one in level crossing, free form surface mirror, convex mirror and concave mirror, and the first reflective mirror and described second reflective mirror can need according to concrete design to be set to plane or different curved surfaces.General projector 200 has trapezoid correction function, and the zoom lens control device 100 that therefore projects generally can not impact distorting transformation.
In the first catoptron 120 and all rotating embodiment be arranged on described support 160 of described second catoptron 140, the axis that described first catoptron 120 rotates can be parallel to the axis that described second catoptron 140 rotates, the holding plane of general projector 200 is parallel with the plane at the place of projection screen 300, the rotation axis of the first catoptron 120 and the second catoptron 140 is to parallel, the first catoptron 120 and described second catoptron 140 can be made more easily to find suitable angle, ensure the quality of projection.
Further, described support 160 can comprise the first rotation axis 161 and the second rotation axis 163, and described first rotation axis 161 is parallel with described second rotation axis 163.Described first catoptron 120 is arranged on described support 160 by described first rotation axis 161 is rotating, and described second catoptron 140 is arranged on described support 160 by described second rotation axis 163 is rotating.In one embodiment, first rotation axis 161 and the second rotation axis 163 can be one, first rotation axis 161 can run through whole first catoptron 120 or penetrate in part first catoptron 120, in like manner, the second rotation axis 163 can run through whole second catoptron 140 or penetrate in part second catoptron 140.In another embodiment, first rotation axis 161 and the second rotation axis 163 also can be respectively two that are oppositely arranged, first rotation axis 161 inserts the first catoptron 120 from the both sides of the first catoptron 120, second rotation axis 163 inserts the second catoptron 140 from the both sides of the second catoptron 140, thus realizes rotating connection.
Wherein in an embodiment, described support 160 can also comprise base 165, first support bar 167 and the second support bar 169, and described first support bar 167 and described second support bar 169 are all positioned on described base 165.Described first catoptron 120 is arranged between described first support bar 167 and described second support bar 169, described second catoptron 140 is arranged between described first support bar 167 and described second support bar 169, and described first catoptron 120 is between described second catoptron 140 and described base 165.Base 165 may be used for being placed on desktop or other table tops, and the first catoptron 120 is positioned at the top of base 165, and the second catoptron 140 is positioned at the top of the first catoptron 120.Projector 200 can be placed on identical desktop or other table tops with base 165, and the camera lens of projector 200 is towards the first catoptron 120.
The area of described first reflective mirror can be less than the area of described second reflective mirror, compare through the second reflective mirror, light beam through the first reflective mirror is narrower, therefore the area needed for described first reflective mirror is less than the area needed for described second reflective mirror, the area of the first reflective mirror is corresponding less, can volume be reduced, save raw materials for production.
As shown in Figure 2, the projection zoom system, pancreatic system 10 of an embodiment, comprises the projection zoom lens control device 100 shown in Fig. 1 and projection screen 300.Light reflection to the second catoptron 140 of described first catoptron 120 for described projector 200 is penetrated, the light reflection extremely described projection screen 300 of described second catoptron 140 for described first catoptron 120 is reflected.Concrete, projector 200 can comprise camera lens 220 and display source 240, and the light that display source sends is through camera lens directive first catoptron 120.
The light that projector 200 penetrates passes through the reflection of the first catoptron 120 and the second catoptron 140, and reprojection, on projection screen 300, shortens the distance between projector 200 and projection screen 300, and the quality of projection can not be affected.The focal length projector 200 that user can select price relatively low, makes focal length projector 200 reach the effect of short focus projector 200 by projection zoom lens control device 100, has saved cost.Meanwhile, achieve dual-use, user need not purchase focal length projector 200 and short focus projector 200 respectively, avoids waste, environmental friendliness.Described projector 200 and described projection screen 300 are positioned at the same side of described projection zoom lens control device 100, or described projector 200 and described projection screen 300 lay respectively at the both sides of described projection zoom lens control device 100.
Above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a projection zoom lens control device, is characterized in that, described projection zoom lens control device is used for being arranged on projector outside, and the light reflection described projector penetrated is to projection screen;
Described projection zoom lens control device comprises the first catoptron, the second catoptron and support;
Described first catoptron and described second catoptron are all arranged on the bracket, described first catoptron is used for light reflection to the second catoptron described projector penetrated, and the light reflection that described second catoptron is used for described first catoptron to reflect is to described projection screen.
2. projection zoom lens control device according to claim 1, is characterized in that, described first catoptron and/or the rotating setting of described second catoptron are on the bracket.
3. projection zoom lens control device according to claim 1, is characterized in that, described first catoptron and all rotating setting of described second catoptron are on the bracket.
4. projection zoom lens control device according to claim 3, is characterized in that, the axis being axially parallel to described second catoptron rotation of described first catoptron rotation.
5. projection zoom lens control device according to claim 3, is characterized in that, described support comprises the first rotation axis and the second rotation axis, and described first rotation axis is parallel with described second rotation axis;
By the rotating setting of described first rotation axis on the bracket, described second catoptron by the rotating setting of described second rotation axis on the bracket for described first catoptron.
6. projection zoom lens control device according to claim 1, is characterized in that, described support comprises base, the first support bar and the second support bar, and described first support bar and described second support bar are all positioned on described base;
Described first catoptron is arranged between described first support bar and described second support bar, and described second catoptron is arranged between described first support bar and described second support bar, and described first catoptron is between described second catoptron and described base.
7. projection zoom lens control device according to claim 1, is characterized in that, the area of described first reflective mirror is less than the area of described second reflective mirror.
8. the projection zoom lens control device according to any one of claim 1 to 7, is characterized in that, described first reflective mirror is the one in level crossing, free form surface mirror, convex mirror and concave mirror;
Described second reflective mirror is the one in level crossing, free form surface mirror, convex mirror and concave mirror.
9. project a zoom system, pancreatic system, it is characterized in that, comprise the zoom lens control device that to project described in projector and any one of claim 1 to 8;
Described first catoptron is used for light reflection to the second catoptron described projector penetrated, and the light reflection that described second catoptron is used for described first catoptron to reflect is to described projection screen.
10. projection zoom system, pancreatic system according to claim 9, is characterized in that, described projector and described projection screen are positioned at the same side of described projection zoom lens control device, or described projector and described projection screen lay respectively at the both sides of described projection zoom lens control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606799.9A CN104360573A (en) | 2014-10-31 | 2014-10-31 | Projection zooming device and projection zooming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606799.9A CN104360573A (en) | 2014-10-31 | 2014-10-31 | Projection zooming device and projection zooming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104360573A true CN104360573A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410606799.9A Pending CN104360573A (en) | 2014-10-31 | 2014-10-31 | Projection zooming device and projection zooming system |
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| Country | Link |
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| CN (1) | CN104360573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370397A (en) * | 2016-08-29 | 2017-02-01 | 福州锐景达光电科技有限公司 | Method and device for measuring modulation transfer function of telephoto lens through concave mirror imaging |
| CN109946910A (en) * | 2017-12-21 | 2019-06-28 | 宁波舜宇车载光学技术有限公司 | Vehicle-mounted optical projection system |
| CN110737069A (en) * | 2018-07-20 | 2020-01-31 | 上旸光学股份有限公司 | Projection system |
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| CN2158098Y (en) * | 1993-05-07 | 1994-03-02 | 张渭熊 | Display device for large screen colour advertisement |
| JPH10312024A (en) * | 1997-03-13 | 1998-11-24 | Nikon Corp | Projector |
| DE19800992A1 (en) * | 1998-01-14 | 1999-07-15 | Braun Camera Werk | Projection device for transparencies |
| CN101203801A (en) * | 2005-06-24 | 2008-06-18 | 松下电器产业株式会社 | Image projection device and rear projection type display device |
| US20100208208A1 (en) * | 2009-02-16 | 2010-08-19 | Hyundai Motor Company | Vehicle instrument panel with rear projection system |
| CN202907018U (en) * | 2012-11-01 | 2013-04-24 | 神画科技（深圳）有限公司 | Projection interactive mobile phone |
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2014
- 2014-10-31 CN CN201410606799.9A patent/CN104360573A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158098Y (en) * | 1993-05-07 | 1994-03-02 | 张渭熊 | Display device for large screen colour advertisement |
| JPH10312024A (en) * | 1997-03-13 | 1998-11-24 | Nikon Corp | Projector |
| DE19800992A1 (en) * | 1998-01-14 | 1999-07-15 | Braun Camera Werk | Projection device for transparencies |
| CN101203801A (en) * | 2005-06-24 | 2008-06-18 | 松下电器产业株式会社 | Image projection device and rear projection type display device |
| US20100208208A1 (en) * | 2009-02-16 | 2010-08-19 | Hyundai Motor Company | Vehicle instrument panel with rear projection system |
| CN202907018U (en) * | 2012-11-01 | 2013-04-24 | 神画科技（深圳）有限公司 | Projection interactive mobile phone |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370397A (en) * | 2016-08-29 | 2017-02-01 | 福州锐景达光电科技有限公司 | Method and device for measuring modulation transfer function of telephoto lens through concave mirror imaging |
| CN106370397B (en) * | 2016-08-29 | 2019-01-25 | 福州锐景达光电科技有限公司 | The method and device of concave mirror imaging measurement telephoto lens modulation transfer function |
| CN109946910A (en) * | 2017-12-21 | 2019-06-28 | 宁波舜宇车载光学技术有限公司 | Vehicle-mounted optical projection system |
| CN110737069A (en) * | 2018-07-20 | 2020-01-31 | 上旸光学股份有限公司 | Projection system |
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Effective date of abandoning: 20180209 |