CN103439789A - Projector light machine and projector - Google Patents
Projector light machine and projector Download PDFInfo
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- CN103439789A CN103439789A CN2013103072435A CN201310307243A CN103439789A CN 103439789 A CN103439789 A CN 103439789A CN 2013103072435 A CN2013103072435 A CN 2013103072435A CN 201310307243 A CN201310307243 A CN 201310307243A CN 103439789 A CN103439789 A CN 103439789A
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- transmission shaft
- projector
- wallboard
- mechanical
- prisms
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Abstract
The invention discloses a projector light machine. The projector light machine comprises a machine shell, a drive mechanism, a first half prism and a second half prism. The light-emitting end of the machine shell is provided with a first wall board, a second wall board and a third wall board, wherein the second wall board and the third wall board are oppositely arranged. The drive mechanism is arranged on the first wall board and comprises a motor and a transmission shaft connected with the motor. The two ends of the transmission shaft are provided with first threads and second threads respectively. The first half prism is matched with the first threads, and the second half prism is matched with the second threads. The motor drives the transmission shaft to rotate so as to drive the first half prism and the second half prism to move oppositely to close a light path or move away from each other to start the light path. The projector light machine can effectively prevent an IRIS light blocking piece from absorbing a large amount of heat with small area and not dissipating heat in time, and therefore the local temperature is prevented from increasing sharply and the problem of abnormal work of a projector is solved. The invention further provides the projector comprising the projector light machine.
Description
Technical field
The present invention relates to projector's technical field, relate in particular to a kind of projector optical-mechanical and projector.
Background technology
Along with social progress, people are more and more deep to the understanding of projector, to the request for utilization of projector, as also more and more higher as noise, sharpness, contrast etc.
Traditional projector generally controls contrast by controlling the IRIS light barrier, and still, the contrast of this projector is not very high, in the time of fully black, still has light to see through, and this is because the area that is in the light of IRIS light barrier is too small.If increase the area that is in the light of IRIS light barrier, can make projector's excess Temperature and melting in fully black, and the light that the IRIS light barrier reflects back can make the temperature of bulb spheroid raise rapidly, affect the serviceable life of bulb.In addition, the IRIS light barrier is made by metal material usually, its thermal conductivity is better, the heat of IRIS light barrier can conduct to joining support equipment, thus, when the excess Temperature of IRIS light barrier, can make again the temperature of the support equipment that connects with it raise fast, therefore the high temperature resistant requirement of support equipment also improved thereupon, thereby will increase the manufacturing cost of projector.
Summary of the invention
Based on this, be necessary absorb large calorimetric and can not dispel the heat in time and local temperature is sharply raise for IRIS light barrier small size in prior art, and then make the problem of projector's operation irregularity, a kind of projector optical-mechanical and projector are provided.
On the one hand, provide a kind of projector optical-mechanical, it comprises:
Casing, its bright dipping end comprises the first wallboard, the second wallboard, the 3rd wallboard, the second wallboard and the 3rd wallboard are located at respectively the both sides of described the first wallboard, and are oppositely arranged;
Driving mechanism, it is arranged at described the first wallboard, and described driving mechanism comprises motor and the transmission shaft that is connected with described motor, and the two ends of described transmission shaft are respectively equipped with first and revolve screw thread and second and revolve screw thread;
The first half prisms, itself and described first revolve screw thread and match; And
The second half prisms, itself and described second revolve screw thread and match;
Described motor drives the rotation of described transmission shaft, and then drives described the first half prisms and described the second half prisms and relatively move with closed light path or opposing movement to open light path.
In embodiment, described the first wallboard is provided with correspondence and is parallel to the guide groove of described transmission shaft therein, and described the first half prisms and described the second half prisms all move along described guide groove under the rotarily driving of described transmission shaft.
Therein in embodiment, described the first half prisms comprise first mirror body and the first web member be connected with described first mirror body, described the first web member be provided with described first revolve that screw thread matches first revolve threaded hole, described the first web member coordinates through described guide groove and described transmission shaft.
Therein in embodiment, described the second half prisms comprise the second mirror body and the second web member be connected with described the second mirror body, described the second web member be provided with described second revolve that screw thread matches second revolve threaded hole, described the second web member coordinates through described guide groove and described transmission shaft.
Therein in embodiment, described guide groove comprises that the corresponding described first the first half guide grooves and corresponding described second that revolve screw thread revolve the second half guide grooves of screw thread.
Therein in embodiment, described the second wallboard is provided with the first through hole that the profile with described the first half prisms is complementary, described the first half prisms under the rotarily driving of described transmission shaft through described the first through hole.
Therein in embodiment, described the 3rd wallboard is provided with the second through hole that the profile with described the second half prisms is complementary, described the second half prisms under the rotarily driving of described transmission shaft through described the second through hole.
Therein in embodiment, described driving mechanism also comprises the pedestal that described transmission shaft is set, the upper cover that transmission gear reaches and described pedestal matches that is sheathed on described transmission shaft, described transmission gear and described motor match, and described motor drives described transmission shaft counterclockwise or turns clockwise by described transmission gear.
Therein in embodiment, described pedestal comprises the first half pedestals and the second half pedestals, described the first half pedestals and described the second half pedestal parallel interval arrange, described drive shaft mount is located at described the first half pedestals and described the second half pedestals, described transmission gear is sheathed on the interlude of described transmission shaft, and between described the first half pedestals and described the second half pedestals.
In addition, also provide a kind of projector, it comprises emitting bulb, and described projector comprises above-mentioned projector optical-mechanical, and described projector optical-mechanical is positioned on the light path of described emitting bulb.
Above-mentioned projector optical-mechanical utilizes described driving mechanism to drive described transmission shaft rotation, and then drive described the first half prisms and described the second half prisms and relatively move with closed light path or opposing movement to open light path, thus, effectively having avoided IRIS light barrier small size absorbs large calorimetric and can not dispel the heat in time, local temperature is sharply raise, and then make the problem of projector's operation irregularity; Simultaneously, utilize described the first half prisms and described the second half prisms, the anaclasis that can make bulb send, and light is penetrated uniformly on the session wall, it is absorbed uniformly, not there will be small size to absorb a large amount of light and make this portion temperature sharply raise and burn out components and parts, and then making projector's abnormal problem of working.
The accompanying drawing explanation
Fig. 1 is the schematic perspective view of the projector optical-mechanical that provides of one embodiment of the invention;
Fig. 2 is the decomposing schematic representation of the described projector optical-mechanical of Fig. 1.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Provided better embodiment of the present invention in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is make disclosure of the present invention is understood more comprehensively thorough.
It should be noted that, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement just for illustrative purposes, do not mean it is unique embodiment.
Unless otherwise defined, all technology that this paper is used are identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term used in instructions of the present invention herein, just in order to describe the purpose of concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
See also Fig. 1 and Fig. 2, a preferred embodiment of the present invention provides a kind of projector optical-mechanical 100, and it comprises casing 10, driving mechanism 20, the first half prisms 30 and the second half prisms 40.
The bright dipping end of casing 10 has the first wallboard 11, the second wallboard 13 and the 3rd wallboard 15; The first wallboard 11 carrying driving mechanism 20, the second wallboards 13 and the 3rd wallboard 15 are oppositely arranged, and are connected to the both sides of the first wallboard 11.
Be understandable that, the main shaft of motor 21 can drive by the driving gear be meshed with transmission gear 27 the transmission gear rotation.
In the present embodiment, pedestal 25 comprises the first half pedestals 251 and the second half pedestal 252, the first half pedestals 251 and the second half pedestal 252 parallel interval settings; Transmission shaft 23 is set up in the first half pedestals 251 and the second half pedestals 252; Transmission gear 27 is sheathed on the interlude of transmission shaft 23, and between the first half pedestals 251 and the second half pedestals 252.
In the present embodiment, the first wallboard 11 is provided with guide groove 111, and its correspondence also is parallel to transmission shaft 23.Guide groove 111 comprises the first half guide groove 111a and the second half guide groove 111b, and it is corresponding that the first half guide groove 111a and first revolve screw thread, and it is corresponding that the second half guide groove 111b and second revolve screw thread.
First of the first half prisms 30 and transmission shaft 23 revolves screw thread and matches.In the present embodiment, the first half prisms 30 comprise first mirror body 31 and the first web member 33, first mirror body 31 is connected with the first web member 33, the first web member 33 is provided with first of transmission shaft 23 revolves that screw thread matches and first revolves threaded hole 331, the first web members 33 and coordinate through guide groove 111 and transmission shaft 23.Particularly, the first web member 33 is through the first half guide groove 111a and be sheathed on transmission shaft 23 and first revolve thread helix and coordinate.
Second of the second half prisms 40 and transmission shaft 23 revolves screw thread and matches.In the present embodiment, the second half prisms 40 comprise the second mirror body 41 and the second web member 43, the second mirror body 41 is connected with the second web member 43, the second web member 43 is provided with second of transmission shaft 23 revolves that screw thread matches and second revolves threaded hole 431, the second web members 43 and coordinate through guide groove 111 and transmission shaft 23.Particularly, the second web member 43 is through the second half guide groove 111b and be sheathed on transmission shaft 23 and second revolve thread helix and coordinate.
The first half prisms 30 and the second half prisms 40 all move along guide groove 111 under the rotarily driving of transmission shaft 23.
Further, the second wallboard 13 be provided with the first through hole 131, the first half prisms 30 that the profile with the first half prisms 30 is complementary under the rotarily driving of transmission shaft 23 through the first through hole 131.The 3rd wallboard 15 be provided with the second through hole 151, the second half prisms 40 that the profile with the second half prisms 40 is complementary under the rotarily driving of transmission shaft 23 through the second through hole 151.In other embodiments, the setting party of the first half prisms and the second half prisms is to being changed, as long as the two reflection or the light that reflects are absorbed by the session wall.
The principle of work of projector optical-mechanical 100 is as follows: when motor 21 rotates counterclockwise, to drive transmission gear 27 to clockwise rotate, and then drive transmission shaft 23 clockwise rotates, revolving screw thread and second at first of transmission shaft 23 revolves under the effect respectively of screw thread, the first half prisms 30 and the second half prisms 40 are respectively to first with move to second, the first half prisms 30 and the second half prisms 40 deviate from movement mutually along guide groove 111, thus, light path is slowly opened, screen brightens, portions of light is absorbed by the session wall after by the first half prisms 30 and the second half prism 40 refractions.When motor 21 clockwise rotates, to drive transmission gear 27 to rotate counterclockwise, and then drive transmission shaft 23 rotates counterclockwise, revolving screw thread and second at first of transmission shaft 23 revolves under the effect respectively of screw thread, the first half prisms 30 and the second half prisms 40 are respectively to second with move to first, the first half prisms 30 and the second half prisms 40 along guide groove 111 mutually near mobile, thus, light path is slowly closed, screen is dimmed, and portions of light is absorbed by the session wall after by the first half prisms 30 and the second half prism 40 refractions.
To sum up, projector optical-mechanical 100 provided by the invention utilizes the motor 21 in driving mechanism 20 to drive transmission shaft 23 rotations, and then drive the first half prisms 30 and the second half prisms 40 and relatively move with closed light path or opposing movement to open light path, thus, effectively having avoided small size absorbs large calorimetric and can not dispel the heat in time, local temperature is sharply raise, and then make the problem of projector's operation irregularity; Simultaneously, utilize the first half prisms 30 and the second half prisms 40, the anaclasis that can make bulb send, and light is penetrated uniformly on the session wall, it is absorbed uniformly, not there will be small size to absorb a large amount of light and make this portion temperature sharply raise and burn out components and parts, and then making projector's abnormal problem of working.
In another embodiment, also provide a kind of projector, it comprises emitting bulb, and described projector comprises above-mentioned projector optical-mechanical, and described projector optical-mechanical is positioned on the light path of described bulb.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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 projector optical-mechanical, is characterized in that, comprising:
Casing, its bright dipping end comprises the first wallboard, the second wallboard, the 3rd wallboard, the second wallboard and the 3rd wallboard are located at respectively the both sides of described the first wallboard, and are oppositely arranged;
Driving mechanism, be arranged at described the first wallboard, and described driving mechanism comprises motor and the transmission shaft that is connected with described motor, and the two ends of described transmission shaft are respectively equipped with first and revolve screw thread and second and revolve screw thread;
The first half prisms, and described first revolve screw thread and match;
The second half prisms, and described second revolve screw thread and match;
Described motor drives the rotation of described transmission shaft, and then drives described the first half prisms and described the second half prisms and relatively move with closed light path or opposing movement to open light path.
2. projector optical-mechanical as claimed in claim 1, it is characterized in that, described the first wallboard is provided with correspondence and is parallel to the guide groove of described transmission shaft, and described the first half prisms and described the second half prisms all move along described guide groove under the rotarily driving of described transmission shaft.
3. projector optical-mechanical as claimed in claim 2, it is characterized in that, described the first half prisms comprise first mirror body and the first web member be connected with described first mirror body, described the first web member be provided with described first revolve that screw thread matches first revolve threaded hole, described the first web member coordinates through described guide groove and described transmission shaft.
4. projector optical-mechanical as claimed in claim 2, it is characterized in that, described the second half prisms comprise the second mirror body and the second web member be connected with described the second mirror body, described the second web member be provided with described second revolve that screw thread matches second revolve threaded hole, described the second web member coordinates through described guide groove and described transmission shaft.
5. projector optical-mechanical as claimed in claim 2, is characterized in that, described guide groove comprises that the corresponding described first the first half guide grooves and corresponding described second that revolve screw thread revolve the second half guide grooves of screw thread.
6. projector optical-mechanical as claimed in claim 1, is characterized in that, described the second wallboard is provided with the first through hole that the profile with described the first half prisms is complementary, described the first half prisms under the rotarily driving of described transmission shaft through described the first through hole.
7. projector optical-mechanical as claimed in claim 1, is characterized in that, described the 3rd wallboard is provided with the second through hole that the profile with described the second half prisms is complementary, described the second half prisms under the rotarily driving of described transmission shaft through described the second through hole.
8. projector optical-mechanical as claimed in claim 1, it is characterized in that, described driving mechanism also comprises the pedestal that described transmission shaft is set, the upper cover that transmission gear reaches and described pedestal matches that is sheathed on described transmission shaft, described transmission gear and described motor match, and described motor drives described transmission shaft counterclockwise or turns clockwise by described transmission gear.
9. projector optical-mechanical as claimed in claim 8, it is characterized in that, described pedestal comprises the first half pedestals and the second half pedestals, described the first half pedestals and described the second half pedestal parallel interval arrange, described drive shaft mount is located at described the first half pedestals and described the second half pedestals, described transmission gear is sheathed on the interlude of described transmission shaft, and between described the first half pedestals and described the second half pedestals.
10. a projector, it comprises emitting bulb, it is characterized in that, and described projector comprises projector optical-mechanical as described as claim 1～9 any one, and described projector optical-mechanical is positioned on the light path of described emitting bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307243.5A CN103439789B (en) | 2013-07-19 | 2013-07-19 | Projector optical-mechanical and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307243.5A CN103439789B (en) | 2013-07-19 | 2013-07-19 | Projector optical-mechanical and projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439789A true CN103439789A (en) | 2013-12-11 |
| CN103439789B CN103439789B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310307243.5A Active CN103439789B (en) | 2013-07-19 | 2013-07-19 | Projector optical-mechanical and projector |
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| CN (1) | CN103439789B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1503024A (en) * | 2002-11-25 | 2004-06-09 | 上海力保科技有限公司 | Optical-machine mechanism for digital projector |
| JP2007240551A (en) * | 2006-03-03 | 2007-09-20 | Seiko Epson Corp | Projector |
| US20110267550A1 (en) * | 2010-04-29 | 2011-11-03 | Coleman Jesse J | Off-state light baffle for digital projection |
| CN202794822U (en) * | 2012-09-21 | 2013-03-13 | 四川省多维电子科技发展有限公司 | Liquid crystal display (LCD) refrigerating and cooling system of projector and ray machine based on same |
| CN103135326A (en) * | 2011-11-23 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Cooling device for optical machine of projector |
-
2013
- 2013-07-19 CN CN201310307243.5A patent/CN103439789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1503024A (en) * | 2002-11-25 | 2004-06-09 | 上海力保科技有限公司 | Optical-machine mechanism for digital projector |
| JP2007240551A (en) * | 2006-03-03 | 2007-09-20 | Seiko Epson Corp | Projector |
| US20110267550A1 (en) * | 2010-04-29 | 2011-11-03 | Coleman Jesse J | Off-state light baffle for digital projection |
| CN103135326A (en) * | 2011-11-23 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Cooling device for optical machine of projector |
| CN202794822U (en) * | 2012-09-21 | 2013-03-13 | 四川省多维电子科技发展有限公司 | Liquid crystal display (LCD) refrigerating and cooling system of projector and ray machine based on same |
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| Publication number | Publication date |
|---|---|
| CN103439789B (en) | 2016-02-17 |
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