CN103698965B - Projecting apparatus - Google Patents
Projecting apparatus Download PDFInfo
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- CN103698965B CN103698965B CN201310681885.1A CN201310681885A CN103698965B CN 103698965 B CN103698965 B CN 103698965B CN 201310681885 A CN201310681885 A CN 201310681885A CN 103698965 B CN103698965 B CN 103698965B
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- light beam
- dust
- light
- air intake
- projection arrangement
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Abstract
The invention provides a projecting apparatus, which comprises a shell, a light-emitting element and an air inlet machine part, wherein an air inlet is arranged in the shell; the light-emitting element is arranged in the shell and is used for providing first light beams; the air inlet machine part is arranged in the air inlet, the air inlet machine part comprises a plurality of dustproof grids, each dustproof grid is provided with an air inlet channel, the outside airflow can enter into the shell through the air inlet channels, each dustproof grid is provided with a first dust collection area, each first dust collection area is located on a light path of each first light beam, and each first light beam penetrates through each first dust collection area, wherein when each first light beam penetrate through each first dust collection area, the dust located at each air inlet channel is attracted by each first light beam and is deposited on each dust collection area.
Description
Technical field
The present invention relates to field of projector, particularly relate to a kind of laser projection device.
Background technology
Projector commonly uses fan guiding distinguished and admirable cooling projector internal components, and the dust in environment can enter projector inside along with air intake, and then stains the optical module of projector inside, affects the life-span of projector.In prior art, in order to improve the life-span of projector, conventional filter screen filters the mode that dust enters projector inside and enters projector inside to prevent the dust in environment.But, because the space of filter screen is very little, can make to reduce in a large number into air quantity, cause the temperature of projector's intraware significantly to rise, the lost of life of projector.
Therefore, be necessary to design a kind of novel projection arrangement, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of projection arrangement, it can, when ensureing air inlet intake, prevent the dust in environment from entering this projection arrangement inner.
For achieving the above object, the invention provides a kind of projection arrangement, comprising,
Housing, this housing is provided with air intake vent;
Light-emitting component, is arranged in this housing, and this light-emitting component is used for providing the first light beam;
Air intake vent parts, be arranged at this air intake vent place, these air intake vent parts comprise multiple dust-proof grid, this dust-proof grid has air intake passage, extraneous air-flow can enter in this housing via this air intake passage, this dust-proof grid has the first dust suction district, and this first dust suction district is positioned in the light path of this first light beam, and can pass for this first light beam;
Wherein, when this first light beam is through this first dust suction district, the dust being positioned at this air intake passage place is deposited on this first dust suction district because of the attraction of this first light beam.
Preferably, this first light beam is laser beam.
Preferably, this first light beam is blue laser beams or yellow laser light beam.
Preferably, comprise the first reflecting element group further, be arranged on these air intake vent parts, for changing the direction of this first light beam, to make this first light beam through this all dust-proof grids.
Preferably, this dust-proof grid is made by the material of high penetration.
Preferably, this dust-proof grid has peristome, and this first dust suction district is arranged in this peristome, and the material in this first dust suction district is made by the material of high penetration.
Preferably, these air intake vent parts and this housing are split type.
Preferably, this light-emitting component comprises projection light source and light-dividing device, and wherein the light that sends of this projection light source is via forming this first light beam after this light-dividing device.
Preferably, this first dust suction district is arranged at the position near this hull outside on these air intake vent parts.
Preferably, the optical path direction of this first light beam is perpendicular to the airflow direction of this air intake passage.
Compared with prior art, projection arrangement provided by the invention comprises housing, light-emitting component and air intake vent parts, and these air intake vent parts comprise multiple dust-proof grid.When the dust suction district that the first light beam that this light-emitting component provides has through this dust-proof grid, because this dust suction district has the characteristic attracting dust because of this first penetrating of light beam, the dust at the air intake passage place through this dust-proof grid is made to be deposited in this dust suction district by the attraction because of this first light beam, and then it is inner to prevent the dust at this air intake passage place to enter this projection arrangement, ensure that the intake of air inlet simultaneously, improve the life-span of this projection arrangement.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of projection arrangement of first embodiment of the invention;
The perspective view of a kind of light-emitting component that Fig. 2 provides for first embodiment of the invention and air intake vent parts;
The vertical view that Fig. 3 is the light-emitting component shown in Fig. 2 and air intake vent parts;
Fig. 4 is the structural representation of another embodiment of the air intake vent parts shown in Fig. 3;
Fig. 5 is the structural representation of second embodiment of the invention;
Fig. 6 is the structural representation of third embodiment of the invention;
Fig. 7 is the structural representation of fourth embodiment of the invention.
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.
Shown in Fig. 3, disclose the structural representation of the first embodiment of projection arrangement of the present invention, projection arrangement comprises housing 1, light-emitting component 2 and air intake vent parts 3.
Housing 1, this housing 1 is provided with air intake vent.When this projection arrangement runs, it is inner that outside air-flow 10 can enter this projection arrangement by this air intake vent, and then reduce the temperature of this projection arrangement internal components, to ensure the normal work of this projection arrangement.
Light-emitting component 2, is arranged in this housing 1, and this light-emitting component 2 is for providing the first light beam 20.This first light beam 20 can be laser beam.Further, this first light beam 20 can be yellow laser light beam or blue laser beams.It should be noted that, this light-emitting component 2 can be independently LASER Light Source, also namely this light-emitting component 2 is separate with the projection light source of this projection arrangement, so, the working time of this light-emitting component 2 of control that can be convenient, to be better beneficial to the dust-proof effect of this projection arrangement, such as: can after the projection light source of projection arrangement quits work, this light-emitting component 2 works on, to coordinate the air intake blower fan of projection arrangement (not shown in FIG., enter in this housing from air intake vent for attracting extraneous air-flow) work, reach better dustproof cooling effect.In practical application, this light-emitting component 2 can synchro control with the air intake blower fan of projection arrangement.
Air intake vent parts 3, be arranged at this air intake vent place, these air intake vent parts 3 comprise multiple dust-proof grid 30, this dust-proof grid 30 has air intake passage 301, extraneous air-flow can enter in this housing 1 via this air intake passage 301, to cool the element (such as projection light source, electronic installation etc.) being positioned at this housing 1.The first side wall 32 of this dust-proof grid 30 has the first dust suction district 302, this first dust suction district 302 is positioned in the light path of this first light beam 20, and can pass for this first light beam 20.When this first light beam 20 is through this first dust suction district 302, the attraction because of this first light beam 20 is deposited on this first dust suction district 302 by the dust being positioned at this air intake passage 301 place, and does not enter the inside of this housing 1.And, when the intensity of this first light beam 20 is larger, be deposited on the dust in this first dust suction district 302 because of the sucking action of this first light beam 20 also the more, thus the dust-proof effect making these whole air intake vent parts 3 also better, and the element of enclosure interior can be avoided to be stain.
Preferably, the optical path direction of this first light beam 20 is perpendicular to the airflow direction of this air intake passage 301, then this first light beam 20 can through the first dust suction district 302 on more dust-proof grid 30, attract the dust more by this air intake passage 301, thus the dust-proof effect making these whole air intake vent parts 3 also better, and the element of enclosure interior can be avoided to be stain.
In addition, because this first light beam 20 is when through each dust-proof grid 30, light intensity can decay, and therefore, this dust-proof grid 30 is made by the material of high penetration, such as, and transparent plastic.Preferably, in order to save the cost of this high penetration material, also can refer to shown in Fig. 4, sidewall in this dust-proof grid 30 arranges peristome 31, and be arranged in this peristome 31 after being made separately in this first dust suction district 302, and the material in this first dust suction district 302 is made by the material of high penetration, reaches in the identical effect of above-described embodiment, the material of this dust-proof grid 30 does not then limit, and can determine according to actual demand.
Further, this first dust suction district 302 can be arranged at the position on these air intake vent parts 3 outside this housing 1.Because this first dust suction district 302 is positioned in the light path of this first light beam 20, and this first dust suction district 302 is arranged at the position on these air intake vent parts 3 outside this housing 1, and then make dirt accumulation in the position in the inclined outside of the dust-proof grid 30 of this air intake vent mechanism member 3, prevent dust to enter this projection arrangement better inner.
In addition, in housing 1 forming process of this projection arrangement, preferably, conveniently these air intake vent parts 3 are cleaned or replace new air intake vent parts, these air intake vent parts 3 are split type with this housing 1, by after air intake vent parts 3 separately processing and manufacturing, then can be installed on this air intake vent place.
Optionally, this light-emitting component 2 can provide multiple first light beam 20, corresponding, this each dust-proof grid 30 has the first dust suction district 302 that the quantity of passing with this first light beam 20 is corresponding, like this, dust can be attracted better, prevent dust from entering the inside of this projection arrangement.
By implementing above-described embodiment, when the first light beam 20 that this light-emitting component provides passes the dust suction district of this dust-proof grid, because this dust suction district has the characteristic attracting dust because of penetrating of this first light beam 20, the dust at the air intake passage place through this dust-proof grid is made to be deposited in this dust suction district by the attraction because of this first light beam 20, and then it is inner to prevent the dust at this air intake passage place to enter this projection arrangement, ensure that the intake of air inlet simultaneously, improve the life-span of this projection arrangement, and the projection light source of this light-emitting component and this projection arrangement is separate, make this projection arrangement after the projection light source of this projection arrangement is closed, can also work on and then prevent dust to enter this projection arrangement inside better.
With reference to shown in Fig. 5, disclose the second embodiment of the present invention, the difference of the embodiment of painting with Fig. 1 is, in order to save cost, in the present embodiment, this light-emitting component 2 comprises projection light source 201 and light-dividing device 202, and wherein, the light that this projection light source 201 sends forms this first light beam 20 via after this light-dividing device 202.In practical application, as shown in Figure 5, this light-dividing device 202 is arranged in the light path of this projection light source 201; The light that this projection light source 201 sends forms this first light beam 20 via after this light-dividing device 202, with the dust-proof grid through air intake vent parts 3, plays the effect that blocks dust enters enclosure interior.
In order to further improve dust-proof effect, this projection arrangement comprises the first reflecting element group (not shown in FIG.) further, be arranged on these air intake vent parts 3, for changing the direction of this first light beam 20, to make this first light beam 20 through this all dust-proof grids 30.In practical application, as shown in Figure 6, this first reflecting element group comprises the first reflecting element 60, and this first reflecting element 60 is in order to change the direction of this first light beam 20 and to reflect this first light beam 20 to form the second light beam 21; The second sidewall 32 that this dust-proof grid 30 has the first side wall 31 and is connected with this first side wall 31, this the first side wall 31 is provided with the first dust suction district 302, this second sidewall 32 is provided with the second dust suction district 303, this the second dust suction district 303 is positioned in the light path of this second light beam 21, pass this first dust suction district 302 when this first light beam 20 and after being incident to this first reflecting element 60, rear formation second light beam 21 can be reflected by this first reflecting element 60.Now, when behind the first dust suction district 302 of this first light beam 20 via the plurality of dust-proof grid 30, be incident to this first reflecting element 60, and form the second light beam 21 after the reflection of this first reflecting element 60, this second light beam 21 is through the second dust suction district 303 of this dust-proof grid 30.When deserving this second light beam 21 through this second dust suction district 303, the attraction because of this second light beam 21 is deposited on this second dust suction district 302 by the dust being positioned at this air intake passage 301 place, and does not enter the inside of this housing 1.
Further, as shown in Figure 7, this first reflecting element group also comprises the second reflecting element 61, and this second reflecting element 61 is for changing the direction of this second light beam 21 and reflecting this second light beam 21 to form the 3rd light beam 22; This dust-proof grid 30 to be provided with in light path that the 3rd dust suction district 304 of dust suction district the 304, three is positioned at the 3rd light beam 22 and can to pass for the 3rd light beam 22.When the 3rd light beam 22 is through the 3rd dust suction district 304, the attraction because of the 3rd light beam 22 is deposited on the 3rd dust suction district 304 by the dust being positioned at this air intake passage 301 place, and does not enter the inside of this housing 1.
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 (9)
1. a projection arrangement, is characterized in that, comprises,
Housing, this housing is provided with air intake vent;
Light-emitting component, is arranged in this housing, and this light-emitting component is used for providing the first light beam, and this first light beam is laser beam;
Air intake vent parts, be arranged at this air intake vent place, these air intake vent parts comprise multiple dust-proof grid, this dust-proof grid has air intake passage, extraneous air-flow can enter in this housing via this air intake passage, this dust-proof grid has the first dust suction district, and this first dust suction district is positioned in the light path of this first light beam, and can pass for this first light beam;
Wherein, when this first light beam is through this first dust suction district, the dust being positioned at this air intake passage place is deposited on this first dust suction district because of the attraction of this first light beam.
2. projection arrangement as claimed in claim 1, it is characterized in that, this first light beam is blue laser beams or yellow laser light beam.
3. projection arrangement as claimed in claim 1, is characterized in that, also comprise,
First reflecting element group, is arranged on these air intake vent parts, for changing the direction of this first light beam, to make this first light beam through this all dust-proof grids.
4. projection arrangement as claimed in claim 1, it is characterized in that, this dust-proof grid is made by the material of high penetration.
5. projection arrangement as claimed in claim 1, it is characterized in that, this dust-proof grid has peristome, and this first dust suction district is arranged in this peristome, and the material in this first dust suction district is made by the material of high penetration.
6. projection arrangement as claimed in claim 1, it is characterized in that, these air intake vent parts and this housing are split type.
7. projection arrangement as claimed in claim 1, it is characterized in that, this light-emitting component comprises projection light source and light-dividing device, and wherein the light that sends of this projection light source is via forming this first light beam after this light-dividing device.
8. projection arrangement as claimed in claim 1, is characterized in that, this first dust suction district is arranged at the position near this hull outside on these air intake vent parts.
9. projection arrangement as claimed in claim 1, is characterized in that, the optical path direction of this first light beam is perpendicular to the airflow direction of this air intake passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681885.1A CN103698965B (en) | 2013-12-12 | 2013-12-12 | Projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681885.1A CN103698965B (en) | 2013-12-12 | 2013-12-12 | Projecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103698965A CN103698965A (en) | 2014-04-02 |
| CN103698965B true CN103698965B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681885.1A Expired - Fee Related CN103698965B (en) | 2013-12-12 | 2013-12-12 | Projecting apparatus |
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| Country | Link |
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| CN (1) | CN103698965B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111279C (en) * | 2000-12-01 | 2003-06-11 | 清华大学 | Nanometer near-field optical clamping method |
| US7628865B2 (en) * | 2006-04-28 | 2009-12-08 | Asml Netherlands B.V. | Methods to clean a surface, a device manufacturing method, a cleaning assembly, cleaning apparatus, and lithographic apparatus |
| CN101369469B (en) * | 2007-08-15 | 2011-08-31 | 瑞鼎科技股份有限公司 | Optical forceps generation device and method for making optical forceps have impetus |
| JP5136833B2 (en) * | 2007-09-04 | 2013-02-06 | カシオ計算機株式会社 | projector |
| CN201130141Y (en) * | 2007-12-26 | 2008-10-08 | 南京理工大学 | Optical sensor for dust particle counter |
| CN101726971A (en) * | 2008-10-15 | 2010-06-09 | 青岛海信电器股份有限公司 | Projector dust preventing device and method as well as projector with dust preventing device |
| CN101770149B (en) * | 2010-01-05 | 2011-08-17 | 深圳雅图数字视频技术有限公司 | Grid dust-removing system of projector |
| EP2426497A1 (en) * | 2010-09-02 | 2012-03-07 | Ludwig-Maximilians-Universität München | Generation and use of liquid stacks in microchannels or capillaries |
| JP2012189936A (en) * | 2011-03-14 | 2012-10-04 | Seiko Epson Corp | Cooling system and projector |
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