CN1450401A - Radiation device for optical machine imaging assembly - Google Patents
Radiation device for optical machine imaging assembly Download PDFInfo
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- CN1450401A CN1450401A CN 02106225 CN02106225A CN1450401A CN 1450401 A CN1450401 A CN 1450401A CN 02106225 CN02106225 CN 02106225 CN 02106225 A CN02106225 A CN 02106225A CN 1450401 A CN1450401 A CN 1450401A
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- imaging assembly
- runner
- radiation device
- air
- optical machine
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Abstract
The invention provides radiation device of imaging assembly of the optical-machine, including the imaging assembly with a bosom and a crust, and the turning guide-flow board set in the bosom; at least an optical valve, set on one side of the crust; wind passage equipment, covering the crust, and at least a partition board forming multiple flow passages, each passage leading to the bosom, the external surface extending from the outer side of the crust to the optical valve and the turning guide-flow board, and the fan, fixed on top of the wind passage equipment. The fan draws in air, and the air is blew downward by the wind passage equipment, and due to the guide through the partition board, the guide incline separating tilted board and so on, the air is blew into the bosom for cooling optical components, one part of air is guided through the first, second and third flow passages.
Description
Technical field
The present invention relates to a kind of ray machine of projection display equipment, particularly relate to a kind of heat abstractor of optical machine imaging assembly.
Background technology
Along with photoelectric technology is flourish, general projection display equipment for can be on screen projection go out high brightness and distinct image more, often use high-power bulb as projection source.Yet the high power bulb produces high temperature problem simultaneously, causing wherein for fear of bulb irradiation, the optical element temperature raises, cause performance degradation, though previous projection display equipment with radiator fan as cooling, but fan also can produce noise problem, therefore, improve radiating efficiency, become the important topic of those skilled in the art's research and development as how limited fan.
See also Fig. 1, imaging assembly 10 for existing projection display equipment ray machine, a projecting lamp (not shown) is equipped with in the below of imaging assembly 10, the light beam that this projecting lamp sent, as shown in Figure 2, light splitting piece (X-plate) 12 in being located at projection imaging assembly 10 shells 11, white light is isolated red by light splitting piece 12, blue, three kinds of different color lights such as green grade, again each coloured light is introduced three Polarizer modules 13 being formed by Polarizer (plorizer) and 1/2nd wave plates (1/2 wave plate) respectively, 14,15, and three light valve (light valve) 161,162,163 three groups of modulation unit being formed carry out modulation, close light through a light-combining prism (X-cube) 17 again, the camera lens (not shown) by light-combining prism 17 front ends is projected to screen at last.
The high light that aforementioned high-power bulb throwed, during through aforementioned light splitting piece 12, three optical elements such as Polarizer module 13,14,15, three light valves 161,162,163 and light-combining prism 17, this each optical element can produce high temperature, must dispel the heat, make temperature not exceed the scope that this each optical element is fit to working temperature, otherwise will influence the optical element characteristic, cause the color and the light uniformity coefficient deterioration of image, reduce projection quality, when serious even damage valuable optical element.Though the high light that aforementioned high power projecting lamp is sent, can make each the optical element rising temperature on the light path, but the present invention only limits to solve the heat dissipation problem of optical elements in the reflection type liquid crystal imaging assembly 10, below the only just relevant heat dissipation problem that has imaging assembly 10 now describe.
Three light valves 161 of aforementioned existing imaging assembly 10,162,163 are individually fixed on the front and two sides of shell 11, the two inclined-plane through holes 111 in shell 11 the place aheads, respectively install simultaneously a fan 181 on 112,182, fan 181,182 between three light valves 161,162, between 163, and from outside suck air, by between three groups of modulation unit air being blown to relevant optical, air-flow direction makes the light splitting piece 12 in the shell 11 shown in Fig. 2 arrow, Polarizer module 13,14,15, light valve 161,162,163 and optical element such as light-combining prism 17 dispelled the heat.But because shell 11 tops are sealing, only the below has opening, and three light valves 161,162,163 are fixed on again on shell 11 sides, fan 181,182 blow into air between three groups of modulation unit, most of airflow only can blow to light splitting piece 12, both sides Polarizer module 13,15 and optical element such as light-combining prism 17, and the Polarizer module 14 in the corner is dispelled the heat fully than difficulty, have only fraction bounce-back air to blow to three light valves 161 simultaneously, 162, on 163 the inside surface, and airflow can't blow to the outside surface of shell 11 fully, therefore cause the air flow field in the shell 11 inhomogeneous, cause light valve 161,162,163 and polaroid module 14 can't efficiently radiates heat, influence the function of this each optical element, even be subjected to Gao Re and deterioration, in addition, imaging assembly 10 uses two fans 181,182, also increase noise, reduce the quality of whole projection display equipment.
Summary of the invention
The object of the present invention is to provide a kind of radiation device for optical machine imaging assembly, air shunting is uniformly distributed in inside and outside the imaging assembly,, increase the life-span of optical element to improve the radiating efficiency of optical element.
Another object of the present invention is to provide a kind of radiation device for optical machine imaging assembly,, effectively utilize the radiating efficiency of airflow,, reduce cost, noise content and circuit control complexity to reduce the fan use amount via single fan arrangement.
A further object of the present invention is to provide a kind of radiation device for optical machine imaging assembly, makes horizontal air and vertical air flow mutual disturbance by the steering diversion plate, to increase radiating effect.
The object of the present invention is achieved like this, and a kind of radiation device for optical machine imaging assembly promptly is provided, and comprising: an imaging assembly, contain an inner and shell, and this inside is provided with a steering diversion plate; At least one light valve is located on the side of this shell; One air-duct apparatus is located on this shell, wherein forms a plurality of runners with at least one dividing plate, and this each runner leads to the inside of this imaging assembly respectively, extended to outside surface and this steering diversion plate of this light valve by this shell outside; And a fan, be fixed on the top of this air-duct apparatus.
Further, the present invention is by the fan suck air that is located at the optical machine imaging assembly top, air is blown downwards by air-duct apparatus, guiding such as diaphragm, guide ramp and separation swash plate by the air-duct apparatus body, the part air is blown into imaging assembly inside, cool off optical element, the part air then guides first runner, second runner and the 3rd runner that extends via to the body outside, and the outside surface that leads to light valve respectively dispels the heat.In addition, the runner that some airflow guiding enters, lead to and blow into the optical machine imaging assembly ventilating opening, blow to the Polarizer module by the guiding of steering diversion plate, the eyeglass of Polarizer module is fully dispelled the heat, ventilating opening by opposite side flows out again, forms the air-flow of side direction, to blow into the mutual disturbance of uprush of enclosure under direct with fan.
Description of drawings
Fig. 1 is the imaging assembly outside drawing of existing ray machine;
Fig. 2 is the imaging assembly diagrammatic cross-section of existing ray machine;
Fig. 3 is the imaging assembly diagrammatic cross-section of ray machine of the present invention;
Fig. 4 is the structural drawing of air-duct apparatus of the present invention;
Fig. 5 is the outside drawing of radiation device for optical machine imaging assembly of the present invention.
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof are lifted a preferred embodiment now, and cooperates graphic adding to be described as follows.
See also Fig. 3, it is the optical machine imaging assembly 20 of the embodiment of the invention, wherein, shell 201 prisms are provided with two ventilating openings 202,203, imaging assembly 20 is equipped with a light source (not shown) in the below, the light beam that light source is emitted, through being located at the light splitting piece 22 of imaging assembly 20 inside, white light is isolated red by light splitting piece 22, blue, three kinds of different color lights such as green grade, again each coloured light is introduced three Polarizer modules 23 forming by Polarizer and 1/2nd wave plates respectively, 24,25, and three light valve 261,262,263 three groups of modulation unit being formed carry out modulation, close light through a light-combining prism 27, the camera lens (not shown) by light-combining prism 27 front ends is projected to screen at last.Dotted line represents that the air-duct apparatus 30 of the embodiment of the invention is located at the relative position above the shell 201 in addition, and in the side of Polarizer module 24 a steering diversion plate 28 is set.
As shown in Figure 4, wherein the body 31 of air-duct apparatus 30 is runners 312 and back runner 313 before being separated out with rib dividing plate 311.Back runner 313 forms one first runner 3131 in a side of body 31.First runner 3131 extends to the outside of body 31, and forms an open outlet downwards.In addition, back runner 313 is respectively established a keyhole 3132,3133 on limit, body 31 two ends, and keyhole 3132 is positioned on the downward-sloping guide ramp 3134, and on two corners of body 31, be provided with a pilot hole 3135 and a register pin 3136, the corner downside of register pin 3136 place bodies 31 extends a runner 3137 downwards, prop up runner 3137 ends with guide plate 3138, form the inboard outlet of guiding.
In addition, 312 of the preceding runners of air-duct apparatus 30 in the central, with the diaphragm 3121 that tilts to both sides, preceding runner 312 is divided into two, form right runner 3122 and left runner 3123, in right runner 3122 and left runner 3123, separate swash plate 3124 with one more respectively, 3125, be provided with two inclined-plane reverse inclination directions with diaphragm 3121, will be divided into two again in right runner 3122 and left runner 3123, make right runner 3122 and left runner 3123 respectively in the side of body 31, form one second runner 3126 and the 3rd runner 3127, and extend to air channel body 31 outsides respectively, its outlet forms an open outlet respectively downwards.Be provided with a keyhole 3128 in diaphragm 3121 central authorities in addition, constitute the air-duct apparatus 30 of a heat transmission.
As shown in Figure 5, air-duct apparatus 30 of the present invention is sheathed on the shell 201 of optical machine imaging assembly 20, keyhole 3132,3133,3128 by air-duct apparatus 30, air-duct apparatus 30 is fixed on the shell 201, make the outlets such as first runner 3131, second runner 3126 and the 3rd runner 3127 of air-duct apparatus 30, lead to the outside surface of light valve 261,262 and 263 respectively.In addition, a runner 3137 outlets of air-duct apparatus 30, guiding is located at the ventilating opening 202 on imaging assembly 20 shells 201 prisms.In addition, a fan 40 is arranged in body 31 upsides of air-duct apparatus 30, cooperates the register pin 3136 and the pilot hole 3135 of body 31, and fan is locked in air-duct apparatus 30.
When the imaging assembly heat abstractor of the embodiment of the invention cools off, be by the aerofoil fan 40 that is located at the top, by the top suck air, air is blown downwards by air-duct apparatus 30, by diaphragm 3121, guide ramp 3134 and separation swash plate 3124, the guiding of 3125 grades, the part airflow is blown into imaging assembly 20 inside, cool off wherein light splitting piece 22, Polarizer module 23,24,25 and optical element such as light-combining prism 27, and light valve 261,262,263 inside surface, the air of part then guides first runner 3131 that extends via to body 31 outsides, second runner 3126 and the 3rd runner 3127, light valve 261 is led in its outlet respectively, 262,263 outside surface dispels the heat.In addition, the air guiding of some enters a runner 3137 that extends to body 31 outsides, and towards ventilating opening 202, at last via guide plate 3138, turn to and blow into ventilating opening 202, blow to Polarizer module 24 by 28 guiding of steering diversion plate again, in the middle of the lens set of the Polarizer module 24 that ventilated, the eyeglass of Polarizer module 24 is fully dispelled the heat, ventilating opening 203 by opposite side flows out again, form the air-flow of side direction,, produce disturbance to increase radiating effect to interact with the fan 40 direct uprush that blow into shell 201 inside down.By above air-duct apparatus 30 and steering diversion plate 28, the even flow field in the optical machine imaging assembly 20, mean allocation cooling air volume, the airflow that effectively utilizes single fan 40 to be blown out, and can reduce number of fans, with reduce cost, noise and circuit control complexity.
In like manner, though embodiments of the invention explain with the light valve system of reflection type liquid crystal, also has the optical system of similar structures applicable to digital micro-mirror chip light valve or penetration liquid crystal light valve etc.
Above-described, only be that scope of the present invention is not limited to this preferred embodiment, and is all by any change that the present invention did, and do not breaking away under the spirit of the present invention, all belongs to claim protection domain of the present invention in order to convenient explanation preferred embodiment of the present invention.
Claims (9)
1. radiation device for optical machine imaging assembly comprises:
One imaging assembly contains an inner and shell, and this inside is provided with a steering diversion plate;
At least one light valve is located on the side of this shell;
One air-duct apparatus is located on this shell, wherein forms a plurality of runners with at least one dividing plate, and this each runner leads to the inside of this imaging assembly respectively, extended to outside surface and this steering diversion plate of this light valve by this shell outside; And
One fan is fixed on the top of this air-duct apparatus.
2. according to the described radiation device for optical machine imaging assembly of claim 1, wherein the inside of this imaging assembly is contained one group of Polarizer module at least, and this steering diversion plate is located at this polarisation module side.
3. according to the described radiation device for optical machine imaging assembly of claim 2, wherein the shell side of this imaging assembly is established at least one ventilating opening in addition, one this runner extends to this ventilating opening to the shell outside of this imaging assembly and forms a runner, guide toward this ventilating opening by being located at the terminal guide plate of its outlet, and facing to this steering diversion plate.
4. according to the described radiation device for optical machine imaging assembly of claim 1, wherein this air-duct apparatus has a body, with a rib dividing plate this body is divided into forward and backward runner.
5. according to the described radiation device for optical machine imaging assembly of claim 4, wherein should be divided into left and right runner with a diaphragm with two face tilts by preceding runner.
6. according to the described radiation device for optical machine imaging assembly of claim 5, wherein should separate to separate swash plate in the runner of the right side, form one toward this imaging assembly inner flow passage and one second runner toward this light valve outside surface wherein.
7. according to the described radiation device for optical machine imaging assembly of claim 5, wherein should separate to separate swash plate by left side runner, form one toward this imaging assembly inner flow passage and past wherein this light valve outside surface of one the 3rd runner.
8. according to claim 3 or 4 described radiation device for optical machine imaging assembly, wherein the end limit in this back runner has a downward-sloping guide ramp, and this runner is led on other end limit.
9. according to the described radiation device for optical machine imaging assembly of claim 4, wherein this back runner forms past wherein this light valve outside surface of first runner by body one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02106225 CN1450401A (en) | 2002-04-05 | 2002-04-05 | Radiation device for optical machine imaging assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02106225 CN1450401A (en) | 2002-04-05 | 2002-04-05 | Radiation device for optical machine imaging assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1450401A true CN1450401A (en) | 2003-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02106225 Pending CN1450401A (en) | 2002-04-05 | 2002-04-05 | Radiation device for optical machine imaging assembly |
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| CN (1) | CN1450401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830710A (en) * | 2019-04-19 | 2020-10-27 | 苹果公司 | Head-mounted device |
| CN115616726A (en) * | 2022-12-09 | 2023-01-17 | 中国航天三江集团有限公司 | Thermal effect regulating and controlling device and method suitable for internal flow field of optical turntable |
-
2002
- 2002-04-05 CN CN 02106225 patent/CN1450401A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830710A (en) * | 2019-04-19 | 2020-10-27 | 苹果公司 | Head-mounted device |
| CN115616726A (en) * | 2022-12-09 | 2023-01-17 | 中国航天三江集团有限公司 | Thermal effect regulating and controlling device and method suitable for internal flow field of optical turntable |
| CN115616726B (en) * | 2022-12-09 | 2023-03-07 | 中国航天三江集团有限公司 | Thermal effect regulating and controlling device and method suitable for internal flow field of optical turntable |
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