CN104330946B - Projection arrangement and acceleration ray machine reach thermally equilibrated method - Google Patents
Projection arrangement and acceleration ray machine reach thermally equilibrated method Download PDFInfo
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- CN104330946B CN104330946B CN201410462074.7A CN201410462074A CN104330946B CN 104330946 B CN104330946 B CN 104330946B CN 201410462074 A CN201410462074 A CN 201410462074A CN 104330946 B CN104330946 B CN 104330946B
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- ray machine
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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
- G03B21/16—Cooling; Preventing overheating
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- General Physics & Mathematics (AREA)
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Abstract
The invention provides a kind of projection arrangement, this ray machine is used for the light beam that this light source sends to conduct to this camera lens; This projection arrangement also comprises: detecting unit and processing unit.Whether detecting unit is used for detecting to this light source ignition.Processing unit conducts to the light beam of this camera lens for controlling this ray machine.When this detecting unit detects this light source start lighting, this processing unit makes this ray machine alternately form normal pictures and complete black picture to image-region by this camera lens with first frequency, until reached for first schedule time, this processing unit makes this ray machine project this normal pictures to this image-region by this camera lens with second frequency; This second frequency is less than this first frequency.
Description
Technical field
The present invention relates to projection arrangement field, particularly relate to a kind of projection arrangement and accelerate ray machine reach thermally equilibrated method.
Background technology
Projector is after start lighting, and conduct between the element of high light in ray machine, ray machine can heat and occur phenomenon of expanding with heat and contract with cold by adjoint heat energy gradually.Due to ray machine gradually heat after have phenomenon of expanding with heat and contract with cold, will cause projector picture focus on leveling variations, the picture of projection fogs, and needs user again again to focus, give use on bring some inconvenience.
Summary of the invention
The invention provides a kind of projection arrangement and accelerate ray machine and reach thermally equilibrated method, can after projector's lighting, accelerate ray machine thermal equilibrium speed not affecting under the prerequisite that projected picture normally exports, need twice adjustment to focus to avoid projector lens.
On the one hand, the invention provides a kind of projection arrangement, comprise light source, camera lens and ray machine, this ray machine is used for the light beam that this light source sends to conduct to this camera lens; This projection arrangement also comprises: detecting unit and processing unit.Whether detecting unit is used for detecting to this light source ignition.Processing unit conducts to the light beam of this camera lens for controlling this ray machine.When this detecting unit detects this light source start lighting, this processing unit makes this ray machine alternately form normal pictures and complete black picture to image-region by this camera lens with first frequency, until reached for first schedule time, this processing unit makes this ray machine project this normal pictures to this image-region by this camera lens with second frequency; This second frequency is less than this first frequency.
Preferably, when this detecting unit detects this light source start lighting, this processing unit controls the light beam that this ray machine makes this light source send and is periodically projected on the wall of this ray machine, in order to form this complete black picture to this image-region.
Preferably, this ray machine comprises digital micromirror device; This processing unit to reflex to the non-light inlet region of this camera lens, in order to form this complete black picture to this image-region by the light beam controlling this digital micromirror device and make this light source send through this digital micromirror device.
Preferably, this ray machine comprises liquid crystal display device; The light beam that this processing unit makes this light source send by this liquid crystal display device of control cannot penetrate this liquid crystal display device, in order to form this complete black picture to this image-region.
Preferably, this first frequency is 2 times of this second frequency.
Preferably, this second frequency is 60 hertz, and this first frequency is 120 hertz.
On the other hand, the invention provides a kind of ray machine that accelerates and reach thermally equilibrated method, be applied to projection arrangement, this projection arrangement comprises light source and ray machine, and the method comprises:
Whether detection is to this light source start lighting;
When detecting this light source start lighting, alternately formation normal pictures and complete black picture, to image-region, until reached for first schedule time, make this ray machine project this normal pictures to this image-region with second frequency with first frequency to make this ray machine;
Wherein, this second frequency is less than this first frequency.
Preferably, when this light source start lighting being detected, controlling the light beam that this ray machine makes this light source send and being periodically projected on the wall of this ray machine, in order to form this complete black picture to this image-region.
Preferably, this projection arrangement also comprises camera lens, and this ray machine comprises digital micromirror device; Control light beam that this light source sends by this digital micromirror device reflexes to this camera lens non-light inlet region through this digital micromirror device, in order to form this complete black picture to this image-region.
Preferably, this ray machine also comprises liquid crystal display device; Control the light beam that this liquid crystal display device makes this light source send and cannot penetrate this liquid crystal display device, in order to form this complete black picture to this image-region.
Compared with prior art; projection arrangement provided by the invention and acceleration ray machine reach thermally equilibrated method; can in a period of time after lighting started shooting by projection arrangement; the frequency of projection image is improved; and when projection image; projection normal pictures alternately and complete black picture are to image-region; because the beam projection that light source can be sent when projecting complete black picture is to the wall of ray machine; like this; accelerate ray machine thermal equilibrium speed not affecting under the prerequisite that projected picture normally exports, avoiding projector lens needs twice adjustment to focus.
Accompanying drawing explanation
The structural representation of a kind of projection arrangement that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of projection arrangement that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is projected to the schematic diagram of the picture of image-region for a kind of projection arrangement that the embodiment of the present invention provides;
The schematic diagram of a kind of reflective projecting apparatus that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of a kind of penetration projection arrangement that Fig. 5 provides for the embodiment of the present invention;
What Fig. 6 provided for the embodiment of the present invention a kind ofly accelerates the schematic flow sheet that ray machine reaches thermally equilibrated method.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
See Fig. 1 and Fig. 2, disclose the projection arrangement that the embodiment of the present invention provides, projection arrangement 1 comprises: light source 11, ray machine 12, camera lens 13, detecting unit 14 and processing unit 15.As shown in Figure 1, detecting unit 14 and processing unit 15 can be arranged in projection arrangement 1; As shown in Figure 2, detecting unit 14 and processing unit 15 can be arranged in the ray machine 12 of projection arrangement 1, but the present invention is not as limit.Ray machine 12 conducts to camera lens 13 for the light beam sent by light source 11.After projection arrangement 1 is started shooting, the apparatus for lighting up in ray machine 12 can to light source 11 lighting.Whether detecting unit 14 is for detecting to light source 11 lighting.Processing unit 15 conducts to the light beam of camera lens 13 for controlling ray machine 12.When detecting unit 14 detect light source 11 start shooting lighting time; processing unit 15 makes ray machine 12 alternately form normal pictures and complete black picture to image-region by camera lens 13 with first frequency; until reached for first schedule time, processing unit 15 makes ray machine 12 project normal pictures to image-region by camera lens 13 with second frequency.Wherein, second frequency is less than first frequency.Preferably, first frequency is 2 times of second frequency.Preferably, second frequency is 60 hertz (HZ), and first frequency is 120 hertz.Wherein, first schedule time was less than the ray machine 12 thermally equilibrated time in prior art.Image-region can be wall, projection screen, screen etc.
When detecting unit 14 detect light source 11 start shooting lighting time; processing unit 15 makes ray machine 12 alternately form normal pictures and complete black picture to image-region by camera lens 13 with first frequency; until when reaching for first schedule time; the time ratio of accounting for of normal pictures and complete black picture can be 1:1; certainly; than also can being other ratio during the accounting for of normal pictures and complete black picture, the time ratio of accounting for of such as normal pictures and complete black picture can be 2:1.As shown in Figure 3; take first frequency as 2 times of second frequency be example; a kind of projection arrangement 1 that disclosing the embodiment of the present invention provides is projected to the schematic diagram of the picture of image-region, wherein A represent projection arrangement 1 start shooting lighting, B represents arrival first schedule time, t represents the time, blank boxes represents normal pictures, shaded box represents complete black picture.Suppose that A is initial time i.e. 0 second (s), first frequency is f, as can be seen from Fig. 3: within the time period of A to B, if than being 1:1 during the accounting for of normal pictures and complete black picture, normal pictures and the complete black picture of image-region display can be, 1/f image-region second display normal pictures, the complete black picture of 2/f image-region second display, 3/f image-region second display normal pictures, the complete black picture of 4/f image-region second display ... by that analogy, until put B time of arrival; If than being 2:1 during the accounting for of normal pictures and complete black picture, normal pictures and the complete black picture of image-region display can be, 1/f, 2/f image-region second display normal pictures, the complete black picture of 3/f image-region second display, 4/f, 5/f image-region second display normal pictures ... by that analogy, until put B time of arrival; Suppose that time point B is N/f second; start at B time point; (N+1)/f image-region second display normal pictures, (N+3)/f image-region second display normal pictures, (N+5)/f image-region second display normal pictures ... by that analogy, on image-region, normal pictures is shown.
The part holding ray machine 12 in projection arrangement 1 is called the wall of ray machine 12, and the wall of ray machine 12 can be a part for the shell of projection arrangement 1 or the inner side being arranged at shell.When detecting unit 14 detect light source 11 start shooting lighting time; when processing unit 15 makes ray machine 12 alternately form normal pictures and complete black picture to image-region by camera lens 13 with first frequency, processing unit 15 can make ray machine 12 periodically project normal pictures to image-region by camera lens 13 and periodically form complete black picture to image-region.Processing unit 15 can control the light beam that ray machine 12 makes light source 11 send and periodically be projected on the wall of ray machine 12, in order to form complete black picture to image-region.Concrete, processing unit 15 controls beam projection that ray machine 12 makes light source 11 send on the wall of ray machine 12.When the treated unit 15 of the light beam that light source 11 sends conducts and is projected on the wall of ray machine 12, there is no beam projection to camera lens 13, therefore, complete black picture can be formed in image-region.
A kind of situation, as shown in Figure 4, ray machine 12 can also comprise digital micromirror device 121.In Fig. 4,2 is image-region, and 3 is light beam.The light beam that light source 11 can send by ray machine 12 reflexes to camera lens 13 through digital micromirror device 121 and conducts to camera lens 13 to the light beam making light source 11 and send.Processing unit 15 reflexes to the non-light inlet region of camera lens 13, in order to form complete black picture to image-region 2 by the light beam that the digital micro mirror element 121 of control makes light source 11 send through digital micromirror device 121.As shown in Figure 4, camera lens 13 comprises shadow region in light inlet region 131, Fig. 4 is light inlet region 131.Non-light inlet region is the part in projection arrangement 1 except light inlet region 131, such as, be positioned in projection arrangement 1 the light inlet region 131 of camera lens 13 upper right side and not in the part in light inlet region 131.Non-light inlet region is the wall of ray machine 12, then processing unit 15 reflexes to the wall of ray machine 12 through digital micromirror device 121 by the light beam that the digital micro mirror element 121 of control makes light source 11 send, in order to form complete black picture to image-region 2.Processing unit 15 reflexes to the light inlet region of camera lens 13, in order to project normal pictures to image-region 2 by the light beam that the digital micro mirror element 121 of control makes light source 11 send through digital micromirror device 121.Projection arrangement 1 can be DLP (DigitalLightProcession, digital light process) projector.
Another kind of situation, as shown in Figure 5, ray machine 12 ' can also comprise liquid crystal display device 122.In Fig. 5,2 represent image-region, and 3 represent light beam.The light beam penetrating LCD device part that ray machine 12 ' can make light source 11 send is projected to camera lens 13 and conducts to camera lens 13 to the light beam making light source 11 and send.Processing unit 15 cannot penetrating LCD device part 122 by the light beam controlling liquid crystal display device and make light source 11 send, in order to form complete black picture to image-region 2.The light beam penetrating LCD device part 122 that processing unit 15 makes light source 11 send by controlling liquid crystal display device, in order to project normal pictures to image-region 2.When light beam cannot penetrating LCD device part 122 time, light beam can be projected on the wall of ray machine 12 '.Projection arrangement 1 can be LCD (LiquidCrystalDisplay, liquid crystal display) projector.
Projection arrangement provided by the invention; can in a period of time after lighting started shooting by projection arrangement; the frequency of projection image is improved; and when projection image; projection normal pictures alternately and complete black picture, the beam projection that light source can be sent due to processing unit when projecting complete black picture to the wall of ray machine, like this; accelerate ray machine thermal equilibrium speed not affecting under the prerequisite that projected picture normally exports, avoiding projector lens needs twice adjustment to focus.
As shown in Figure 6, disclose one acceleration ray machine 12 provided by the invention and reach thermally equilibrated method, method is applied to above-mentioned projection arrangement 1, and method comprises:
S501, detect and whether light source 11 is started shooting lighting;
S502, when detect to light source 11 start shooting lighting time, make ray machine 12 alternately form normal pictures and complete black picture to image-region with first frequency, until reached for first schedule time, make ray machine 12 with second frequency projection normal pictures to image-region.
Wherein, second frequency is less than first frequency.Preferably, first frequency can be 2 times of second frequency.Preferably, second frequency can be 60 hertz, and first frequency can be 120 hertz.Preferably, first schedule time was less than the ray machine 12 thermally equilibrated time in prior art.
When detect light source 11 start shooting lighting time, projection arrangement 1 controls wall that light beam that ray machine 12 makes light source 11 send periodically is projected to ray machine 12 periodically forms complete black picture to image-region.
A kind of situation, when projection arrangement 1 comprises digital micromirror device 121, projection arrangement 1 controls light beam that light source 11 sends by digital micro mirror element 121 reflexes to camera lens 13 light inlet region 131 through digital micromirror device 121 and projects normal pictures to image-region to make projection arrangement 1; Projection arrangement 1 controls the light beam that light source 11 sends by digital micro mirror element 121 and reflexes to the non-light inlet region of camera lens 13 through digital micromirror device 121 to form complete black picture to image-region.Step S502 comprises: when detect to light source 11 start shooting lighting time, projection arrangement 1 is made with first frequency alternately to form normal pictures and complete black picture to image-region through digital micromirror device 121 with first frequency alternating reflex to the light inlet region 131 of camera lens 13 and non-light inlet region by controlling light beam that digital micro mirror element 121 makes light source 11 project, until reached for first schedule time, the light inlet region 131 that light beam light source 11 being projected by controlling digital micro mirror element 121 reflexes to camera lens 13 through digital micromirror device 121 with second frequency makes projection arrangement 1 with second frequency projection normal pictures to image-region.Non-light inlet region can be the wall of ray machine 12.Projection arrangement 1 can be DLP projector.
Another kind of situation, when projection arrangement 1 comprises liquid crystal display device 122, projection arrangement 1 control light beam that liquid crystal display device makes light source 11 send cannot penetrating LCD device part 122 to form complete black picture to image-region.Step S502 comprises: when detecting light source 11 lighting; control liquid crystal display device light beam that light source 11 project with first frequency replace penetrating LCD device part 122 and cannot penetrating LCD device part 122 to make projection arrangement 1 with first frequency alternately formation normal pictures and complete black picture to image-region; until reached for first schedule time, the light beam that control liquid crystal display device makes light source 11 project projects normal pictures to image-region to make projection arrangement 1 with second frequency with second frequency penetrating LCD device part 122.When light beam cannot penetrating LCD device part 122 time, light beam can be projected on the wall of ray machine 12 '.Projection arrangement 1 can be LCD projector.
One of the present invention accelerates the quick thermally equilibrated method of ray machine; can in a period of time after lighting started shooting by projection arrangement; the frequency of projection image is improved; and when projection image; projection normal pictures alternately and complete black picture, because the beam projection that light source can be sent when projecting complete black picture is to the wall of ray machine, like this; accelerate ray machine thermal equilibrium speed not affecting under the prerequisite that projected picture normally exports, avoiding projector lens needs twice adjustment to focus.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (10)
1. a projection arrangement, comprises light source, camera lens and ray machine, and this ray machine is used for the light beam that this light source sends to conduct to this camera lens; It is characterized in that, this projection arrangement also comprises:
Whether detecting unit, for detecting to this light source ignition; And
Processing unit, conducts to the light beam of this camera lens for controlling this ray machine;
Wherein, when this detecting unit detects this light source start lighting, this processing unit makes this ray machine alternately form normal pictures and complete black picture to image-region by this camera lens with first frequency, until reached for first schedule time, this processing unit makes this ray machine project this normal pictures to this image-region by this camera lens with second frequency; This second frequency is less than this first frequency.
2. projection arrangement as claimed in claim 1, it is characterized in that, when this detecting unit detects this light source start lighting, this processing unit controls the light beam that this ray machine makes this light source send and is periodically projected on the wall of this ray machine, in order to form this complete black picture to this image-region.
3. projection arrangement as claimed in claim 1, it is characterized in that, this ray machine comprises digital micromirror device; This processing unit to reflex to the non-light inlet region of this camera lens, in order to form this complete black picture to this image-region by the light beam controlling this digital micromirror device and make this light source send through this digital micromirror device.
4. projection arrangement as claimed in claim 1, it is characterized in that, this ray machine comprises liquid crystal display device; The light beam that this processing unit makes this light source send by this liquid crystal display device of control cannot penetrate this liquid crystal display device, in order to form this complete black picture to this image-region.
5. projection arrangement as claimed in claim 1, it is characterized in that, this first frequency is 2 times of this second frequency.
6. projection arrangement as claimed in claim 1, it is characterized in that, this second frequency is 60 hertz, and this first frequency is 120 hertz.
7. accelerate ray machine and reach a thermally equilibrated method, be applied to projection arrangement, this projection arrangement comprises light source and ray machine, it is characterized in that, the method comprises:
Whether detection is to this light source start lighting;
When detecting this light source start lighting, alternately formation normal pictures and complete black picture, to image-region, until reached for first schedule time, make this ray machine project this normal pictures to this image-region with second frequency with first frequency to make this ray machine;
Wherein, this second frequency is less than this first frequency.
8. the ray machine that accelerates as claimed in claim 7 reaches thermally equilibrated method, it is characterized in that, when this light source start lighting being detected, controlling the light beam that this ray machine makes this light source send and being periodically projected on the wall of this ray machine, in order to form this complete black picture to this image-region.
9. the ray machine that accelerates as claimed in claim 7 reaches thermally equilibrated method, and it is characterized in that, this projection arrangement also comprises camera lens, and this ray machine comprises digital micromirror device; Control light beam that this light source sends by this digital micromirror device reflexes to this camera lens non-light inlet region through this digital micromirror device, in order to form this complete black picture to this image-region.
10. the ray machine that accelerates as claimed in claim 7 reaches thermally equilibrated method, and it is characterized in that, this ray machine also comprises liquid crystal display device; Control the light beam that this liquid crystal display device makes this light source send and cannot penetrate this liquid crystal display device, in order to form this complete black picture to this image-region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462074.7A CN104330946B (en) | 2014-09-11 | 2014-09-11 | Projection arrangement and acceleration ray machine reach thermally equilibrated method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462074.7A CN104330946B (en) | 2014-09-11 | 2014-09-11 | Projection arrangement and acceleration ray machine reach thermally equilibrated method |
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| Publication Number | Publication Date |
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| CN104330946A CN104330946A (en) | 2015-02-04 |
| CN104330946B true CN104330946B (en) | 2016-01-27 |
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| CN201410462074.7A Expired - Fee Related CN104330946B (en) | 2014-09-11 | 2014-09-11 | Projection arrangement and acceleration ray machine reach thermally equilibrated method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6314880B2 (en) * | 2015-03-11 | 2018-04-25 | カシオ計算機株式会社 | Display device, display control method, and program |
| CN109714579B (en) * | 2017-10-25 | 2023-10-13 | 成都极米科技股份有限公司 | Self-checking device and method for focusing stroke |
| CN111443556B (en) | 2019-01-16 | 2021-10-15 | 中强光电股份有限公司 | Projector and focal length adjusting method thereof |
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| TW200413827A (en) * | 2003-01-23 | 2004-08-01 | Coretronic Corp | Lighting protective method and device for projection display system |
| CN1570757A (en) * | 2003-07-15 | 2005-01-26 | 明基电通股份有限公司 | Projector |
| CN101051171A (en) * | 2006-04-05 | 2007-10-10 | 明基电通股份有限公司 | Projector and method for control turn-on program of projector |
| CN101089725A (en) * | 2006-06-14 | 2007-12-19 | 明基电通股份有限公司 | Projection system and control method of its cooling unit |
| JP2012078428A (en) * | 2010-09-30 | 2012-04-19 | Nippon Avionics Co Ltd | High pressure lamp lighting control method and image projection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI323825B (en) * | 2006-12-29 | 2010-04-21 | Benq Corp | Projector and method for igniting lamp |
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- 2014-09-11 CN CN201410462074.7A patent/CN104330946B/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| TW200413827A (en) * | 2003-01-23 | 2004-08-01 | Coretronic Corp | Lighting protective method and device for projection display system |
| CN1570757A (en) * | 2003-07-15 | 2005-01-26 | 明基电通股份有限公司 | Projector |
| CN101051171A (en) * | 2006-04-05 | 2007-10-10 | 明基电通股份有限公司 | Projector and method for control turn-on program of projector |
| CN101089725A (en) * | 2006-06-14 | 2007-12-19 | 明基电通股份有限公司 | Projection system and control method of its cooling unit |
| JP2012078428A (en) * | 2010-09-30 | 2012-04-19 | Nippon Avionics Co Ltd | High pressure lamp lighting control method and image projection device |
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