CN1696816A - Module of projectin optics and shading fan - Google Patents
Module of projectin optics and shading fan Download PDFInfo
- Publication number
- CN1696816A CN1696816A CN 200410042289 CN200410042289A CN1696816A CN 1696816 A CN1696816 A CN 1696816A CN 200410042289 CN200410042289 CN 200410042289 CN 200410042289 A CN200410042289 A CN 200410042289A CN 1696816 A CN1696816 A CN 1696816A
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- projection optics
- shell
- optics assembly
- fan
- hub portion
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- 108010085990 projectin Proteins 0.000 title 1
- 238000003384 imaging method Methods 0.000 claims abstract description 3
- 241000883990 Flabellum Species 0.000 claims description 60
- 238000012549 training Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 12
- 230000009183 running Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
A projective optical component is composed of shell, projection component, light source and a shading fan. It is featured as setting a heat radiation hole on shell and light source as well as projection component in shell for imaging, setting the shading fan at heat radiation hole for shading the hole as two adjacent blades in axial direction on fan are overlapped partially.
Description
Technical field
Relevant a kind of projection optics assembly of the present invention and shading fan thereof, particularly relevant a kind of have concurrently anti-let out the projection optics assembly and the shading fan thereof of light and heat radiation.
Background technology
In video device now, projector is because of factors such as bulb and optical machine engine runnings, can produce high temperature during running, therefore best radiating effect must be arranged, otherwise, high temperature destroys the coating on the most important core-optical machine engine of projector easily and influences optical characteristics, significantly lowers bulb and ray machine life-span simultaneously.
Therefore, in present projector, near the shell the bulb, can form radiating opening, and on this radiating opening, install general axial flow radiator fan, use the heat that will be produced in the projector and discharge projector.
Yet, because present employed various fan, between its flabellum with and flabellum and shell between the zone do not have the effect that stops the light loss, therefore, the light that luminescence component produced such as the bulb in casing, have part through regional loss thus to projector, and make extraneous brightness increase and reduce the drop shadow effect of projector.
Therefore, existing solution is to install the light-shielding structure that shading is used additional in the radiating opening outside, and the high light of luminescence component leaks in the projector to avoid.Japan JP11167166 patent promptly utilizes the light-shielding structure with shaded effect to cover radiating opening, to prevent that the high light of luminescence component leaks in the projector.
Yet aforementioned light-shielding structure also can cause certain obstruction to the heat radiation flow field when reaching the raising shaded effect, so not only can significantly reduce radiating effect, also can significantly improve the noise of fan running simultaneously.
Summary of the invention
Therefore,, the objective of the invention is to propose a kind of projection optics assembly, have high shaded effect, high radiating effect and low noise volume simultaneously for addressing the above problem.
The present invention proposes a kind of shading fan in addition, has high shaded effect, high radiating effect and low noise volume simultaneously so that have the device of light source.
For this reason, the invention provides a kind of projection optics assembly, this assembly is made of shell, projecting subassembly, light source and at least one fan component.Shell has at least one radiating opening, and projecting subassembly and light source are positioned at shell, in order to carry out the video imaging action.Fan component is positioned at the radiating opening place of shell, and is made of hub portion and a plurality of flabellum.Flabellum is located in the hub portion, and goes up axially that adjacent flabellum does not contact mutually and part overlaps, and the zone that flabellum and hub portion are constituted is to cover aforementioned radiating opening.Wherein, the light that light source sent is to be subjected to covering of fan component and can't to pass through radiating opening.
Moreover the present invention provides a kind of shading fan in addition, and this fan is to be applicable to the projection optics assembly with light source, and has at least one radiating opening on the shell of this assembly.This fan is made of a hub portion and a plurality of flabellum.Flabellum is located in the hub portion, and goes up axially that adjacent flabellum does not contact mutually and part overlaps, and aforementioned radiating opening is covered in the zone that flabellum and hub portion are constituted.Wherein, the light that light source sent is subjected to covering of shading fan and can't passes through radiating opening.
In the projection optics assembly and shading fan of the invention described above, the hub portion of fan also can be made up of a plurality of shell structure, and each shell structure periphery is equipped with a plurality of blades respectively.Blade on each shell structure is corresponding mutually, and the blade of correspondence is bonded into a complete flabellum mutually, and wherein the corresponding junction surface of blade is formed with mutual corresponding engagement shape respectively.
In addition, the shape of aforementioned blade, size also can similar mode of arranging with cross arrangement or block again to flabellum be formed flabellum.Moreover the position that aforementioned shell structure is bonded with each other also is formed with mutual corresponding engagement aligning structure.
In addition, the pattern of aforementioned flabellum can be plate, aerofoil profile, curved face type, plagiohedral or cabochon.The region shape that flabellum and hub portion are constituted can be different from the shape of radiating opening, also can with the shape approximation of radiating opening.
Moreover the projection optics assembly shading fan of the invention described above also includes base, and shading fan is via base on the affixed shell.The mode that aforementioned base combines with shading fan for example be fix, sealed, bind or its correlation combiner.
In addition, the projection optics assembly shading fan of the invention described above also comprises at least one flow-guiding structure, and this flow-guiding structure is located on the shell of radiating opening or shading fan periphery.The combination of this flow-guiding structure and shell is to be selected from fixing, sealed, bonding, one-body molded or its correlation combiner.Moreover flow-guiding structure also can be made of at least one training wall, and has specific gap between each training wall.
Moreover, in the projection optics assembly shading fan of the invention described above, also can form at least one opening in the hub portion.In addition, the shape of radiating opening for example is polygon, circle, ellipse, specific pattern or its correlation combiner.In addition, shading fan can be fan component, or the frame fan is arranged.
In sum, because projection optics assembly of the present invention does not need to install shadow shield or light-shielding structure in addition additional at the air-out oral-lateral or the inlet air oral-lateral of shading fan, therefore, shading fan of the present invention is being installed on projection optics assembly front and back, and its radiating effect is close.Moreover because the air-out oral-lateral of shading fan or the structure that the inlet air oral-lateral does not have barrier air, therefore shading fan of the present invention is being installed on projection optics assembly front and back, and the noise content during its running is also close.Therefore, projection optics assembly of the present invention is to have preferable radiating effect and lower noise content than existing projector equipment.
Moreover, because shading fan of the present invention can not have the housing of fan, but therefore heat dissipation region can be significantly improved, and noise content can be significantly reduced.
In addition, flow-guiding structure is set, can moderately changes the flow field of shading fan, and under the situation that does not increase noise content, further improve the radiating effect of shading fan in the shading fan periphery of projection optics assembly of the present invention.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the front-view schematic diagram that illustrates the projection optics assembly of a preferred embodiment of the present invention.
Fig. 2 is the schematic side view that illustrates the projection optics assembly of Fig. 1.
Fig. 3 is the schematic top plan view that illustrates the projection optics assembly of Fig. 1.
Fig. 4 A is the synoptic diagram that illustrates the shading fan of first preferred embodiment of the present invention.
Fig. 4 B is the schematic top plan view that illustrates the shading fan of Fig. 4 A.
Fig. 4 C is the stravismus synoptic diagram that illustrates the shading fan of Fig. 4 A.
Fig. 5 A is the synoptic diagram that illustrates the shading fan of second preferred embodiment of the present invention.
Fig. 5 B is the decomposing schematic representation that illustrates the shading fan of Fig. 5 A.
Fig. 5 C is the decomposing schematic representation that illustrates another example of shading fan of Fig. 5 A.
Fig. 6 A is the synoptic diagram that illustrates the shading fan of the 3rd preferred embodiment of the present invention.
Fig. 6 B is the decomposing schematic representation that illustrates the shading fan of Fig. 6 A.
Fig. 7 A is the synoptic diagram that illustrates the shading fan of the 4th preferred embodiment of the present invention.
Fig. 7 B is the decomposing schematic representation that illustrates the shading fan of Fig. 7 A.
Embodiment
Fig. 1 is the front-view schematic diagram of projection optics assembly 100 of the present invention.Fig. 2 is the schematic side view of projection optics assembly 100.Fig. 3 is the schematic top plan view of projection optics assembly 100.Though wherein Fig. 2 illustrates three kinds of different fans and radiating opening, so not as limit, also can only use single fan and radiating opening, or look actual demand and increased and decreased, use with, change the pattern and the quantity of following various fan and radiating opening.
Please be simultaneously referring to figs. 1 through Fig. 3, projection optics assembly 100 is made of light source 102, shading fan 104, projecting subassembly 106 and shell 108, and wherein shading fan 104 can be Frame-free fan, also can be for the frame fan is arranged.Projection optics assembly 100 for example is projector or other projector equipment.
Light source 102 is used light in order to provide projection optics assembly 100 to show.Light source 102 for example is pointolite, line source, area source, artificial lamp source.In addition, light source 102 also can include a beam condensing unit, so that the light that light source 102 is produced converges in the projecting subassembly 106.Moreover light source 102 also can add relevant optically focused and guiding device and import in the projection optics assembly 100 with the bias light with the external world.
Projecting subassembly 106 is made of optical module 120 and projection lens 122, in order to receive light from light source 102, and carry out quality processing, image display process, image-zooming processing, projection focusing processing etc., so that required image is presented on the appropriate location.Wherein optical module 120 comprises ray machine (opticalengine), lens and colour wheel (color wheel) or selects the colour cell part.Projection lens 122 is made up of lens.
Shell 108 is in order to coating light source 102 and projecting subassembly 106, preventing light loss that light source 102 sent to extraneous, and the projection effect when improving projecting subassembly 106 projections.Shell 108 has radiating opening 110, so that the heat that light source 102 and projecting subassembly 106 are produced is discharged towards the external world.The shape of radiating opening 110 for example be shown in Figure 2 such as polygonal radiating opening 110a such as rectangle, rounded radiating opening 110b, 110c, oval radiating opening, have the radiating opening of specific pattern.
Shading fan 104 is positioned on the shell 108, in order to covering the light of 102 loss of light source, and the heat that in radiating opening 110 discharging projection optics assemblies 100, is produced.Shading fan 104 can be positioned at the outside of shell 108, also can be positioned at the inboard of shell 108, also can be positioned at the medial and lateral of shell 108 simultaneously.
Shading fan 104 is made of flabellum 114 and hub portion 116, and wherein flabellum 114 is to be located in the hub portion 116, and axially goes up adjacent flabellum 114 parts overlapping, and flabellum 114 is to cover radiating opening 110 with the zone that hub portion 116 is constituted.Also include driving circuit, stator structure, rotor structure in the hub portion 116.Flabellum 114 can have the diverse shape with radiating opening 110a with the zone that hub portion 116 is constituted, or shape approximation but size is slightly larger than radiating opening 110b, or shape, size are similar to heat radiation and open 110c.The pattern of flabellum 114 for example is plate, aerofoil profile, curved face type, plagiohedral, cabochon.Flabellum 114 also can change to the form that the multilayer leaf overlaps mutually, or overlaps mutually in the mode of one deck overlapping at least.In addition, the air intake that constituted of flabellum 114 cover face can be identical or different with the size that goes out the windshield face.
Moreover the mode that shading fan 104 combines with shell 108 for example is by base 118 shading fan 104 to be fixed on the shell 108, and makes shading fan 104 cover radiating opening 110, passes through radiating opening 110 to prevent the light that light source 102 is sent.Particularly, earlier shading fan 104 is incorporated on the base 118, again base 118 is incorporated on the support 124.In addition, also can change to elder generation base 118 is incorporated on the support 124, again shading fan 104 is incorporated on the base 118.Moreover, also can change to when base 118 combines with shading fan 104, support 124 is held between shading fan 104 and the base 118.Shading fan 104 for example is fixing, sealed or bonding with the combination of base 118, and base 118 for example is fixing, sealed, bonding or one-body molded with the combination of support 124.
Moreover, though aforementioned be that example describes with the corresponding single radiating opening of single shading fan, right the present invention also can only need shading fan can cover radiating opening and get final product for the corresponding single radiating opening of a plurality of shading fans not as limit.
In addition, in projection optics assembly 100, also can form flow-guiding structure 112, with the air velocity distribution around the adjustment shading fan 104, and improve shading fan 104 radiating effects and radiating efficiency, even can the appropriate radiating effect that improves projection optics assembly 100 interior regional areas.Wherein, flow-guiding structure 112 is to be positioned on the shell 108 of radiating opening 110 peripheries or on the shell 108 of shading fan 104 peripheries.Flow-guiding structure 112 can by at least one the training wall 112a that intersperses among shading fan 104 peripheries constituted and each training wall between have certain between the crack, also can be for fully around the framework 126 of living shading fan 104 peripheries.Flow-guiding structure 112 for example is fixing, sealed, bonding or one-body molded with the combination of shell 108.
In addition, flow-guiding structure 112 also can directly be engaged on the shading fan 104 via a flank, and centers on the periphery of flabellum 114.At this moment, shading fan 104 also can engage with shell 108 via flow-guiding structure 112.
Fig. 4 A is the synoptic diagram that illustrates the shading fan of first preferred embodiment of the present invention.Fig. 4 B is the schematic top plan view that illustrates the shading fan of Fig. 4 A.Fig. 4 C is the stravismus synoptic diagram that illustrates the shading fan of Fig. 4 A.Please be simultaneously with reference to Fig. 4 A to Fig. 4 C, shading fan 200 is made of hub portion 204 and flabellum 202, and wherein part overlaps mutually between the adjacent flabellum 202 in axially going up.Shown in Fig. 4 B, flabellum 202 constitutes circular lightproof area with hub portion 204.Hub portion 204 for example is one-body molded with flabellum 202.
Moreover, in hub portion 204, also can form at least one opening 206, to expose the circuit unit that is positioned at hub portion 204.Because this circuit unit can cover opening 206, so the opening 206 of hub portion 204 can not make shading fan let out the situation of light.
In this preferred embodiment, because radiating opening can be covered in the formed zone of shading fan, therefore no matter whether shading fan turns round, and all can prevent the turnover of the light in ambient light or the projection optics assembly effectively.
Because projection optics assembly of the present invention does not need to install shadow shield or light-shielding structure in addition additional at the air-out oral-lateral or the inlet air oral-lateral of shading fan, therefore, shading fan of the present invention is being installed on projection optics assembly front and back, and its radiating effect is close.Moreover because the air-out oral-lateral of shading fan or the structure that the inlet air oral-lateral does not have barrier air, therefore shading fan of the present invention is being installed on projection optics assembly front and back, and the noise content during its running is also close.Therefore, projection optics assembly of the present invention is to have preferable radiating effect and lower noise content than existing projector equipment.
Moreover, since have the opening that exposes its internal circuit assembly in the hub portion, therefore, during the shading fan running, the heat that its internal circuit assembly etc. is produced also since then opening be disposed to the external world in the lump, and further promote the running rotating speed and the usefulness of shading fan.
Fig. 5 A is the synoptic diagram that illustrates the shading fan 300 of second preferred embodiment of the present invention.Fig. 5 B is the decomposing schematic representation of shading fan 300.Please be simultaneously with reference to Fig. 4 C, Fig. 5 A and Fig. 5 B, the difference of this preferred embodiment and first preferred embodiment be the shading fan 300 of this preferred embodiment be by two easily the 304a of hub portion, the 304b of dismounting constitute a single hub portion 304, and flabellum 302a, 302b are located on the 304a of hub portion, the 304b according to specific interval respectively.As the 304a of hub portion, when 304b mutually combines, flabellum 302a, 302b are combined into flabellum 302 in modes such as cross arrangement, block (Bulk) arrangements.Wherein the shape of each flabellum 302a, 302b and size are similar to single flabellum 302.
In addition, the mutually combine mode of contraposition of the 304a of hub portion, 304b for example is to utilize the mutual corresponding engagement 306a of portion, 306b, with such as fixing, bonding, mode such as chimeric, is bonded into complete hub portion 304.Particularly, the shape of junction surface 306a, 306b can be corresponding mutually arbitrary shape for the periphery shown in Fig. 5 B, the periphery that also can change to shown in Fig. 5 C is junction surface 306c, the 306d of the concaveconvex shape of correspondence mutually, or other mutual corresponding engagement aligning structure.
The mould manufacture difficulty of this preferred embodiment when making is lower than first preferred embodiment, therefore can further reduce manufacturing cost.
Fig. 6 A is the synoptic diagram that illustrates the shading fan 400 of the 3rd preferred embodiment of the present invention.Fig. 6 B is the decomposing schematic representation of shading fan 400.Please be simultaneously with reference to Fig. 5 B, Fig. 6 A and Fig. 6 B, this preferred embodiment is that with the difference of second preferred embodiment flabellum 402a, the 402b of this preferred embodiment are positioned on the 404a of hub portion, the 404b of mutual correspondence position, and as the 404a of hub portion, when the 404b correspondence is bonded into hub portion 404, each flabellum 402a, 402b are the corresponding up and down complete flabellums 402 that is combined into.Junction surface 406a, the 406b of flabellum 402a, 402b is corresponding mutually curve form, concaveconvex shape, arbitrary shape.Moreover flabellum 402a, 402b respectively account for the ratio of flabellum 402 for equal or unequal.
Fig. 7 A is the synoptic diagram that illustrates the shading fan 500 of the 4th preferred embodiment of the present invention.Fig. 7 B is the decomposing schematic representation of shading fan 500.This preferred embodiment with the difference of first preferred embodiment be the shading fan 500 of this preferred embodiment be by three easily the 504a of hub portion, 504b, the 504c of dismounting constitute a single hub portion 504, and flabellum 502a, 502b, 502c are located on the 504a of hub portion, 504b, the 504c according to specific interval respectively.As the 504a of hub portion, 504b, when 504c mutually combines, flabellum 502a, 502b, 502c are combined into flabellum 502 in modes such as cross arrangement, block (Bulk) arrangements.Wherein shape and the size of each flabellum 502a, 502b, 502c are similar to single flabellum 502.
In addition, the mutually combine mode of contraposition of the 504a of hub portion, 504b, 504c for example is to utilize the mutual corresponding engagement 506a of portion, 506b, 506c, with such as fixing, bonding, mode such as chimeric, is bonded into complete hub portion 504.The shape of junction surface 506a, 506b, 506c for example is corresponding mutually concaveconvex shape or arbitrary shape.
Moreover though the flabellum of shading fan of the present invention describes with the foregoing description, so not as limit, flabellum also can change to the kenel of the air intake surface dead area of flabellum greater than the outlet air surface dead area of flabellum.
Moreover, also can add fair water fin (not illustrating) at radiating opening 110 places, guide to other position with the air-flow of shading fan being discharged by the guide functions of fair water fin, and this fair water fin also can provide auxiliary screening effect, with under the situation of the air velocity distribution that does not hinder shading fan, further improve shaded effect.The form of fair water fin for example is curved slab, swash plate.
In sum, because projection optics assembly of the present invention does not need to install shadow shield or light-shielding structure in addition additional at the air-out oral-lateral or the inlet air oral-lateral of shading fan, therefore, shading fan of the present invention is being installed on projection optics assembly front and back, and its radiating effect is close.Moreover because the air-out oral-lateral of shading fan or the structure that the inlet air oral-lateral does not have barrier air, therefore shading fan of the present invention is being installed on projection optics assembly front and back, and the noise content during its running is also close.Therefore, projection optics assembly of the present invention is to have preferable radiating effect and lower noise content than existing projector equipment.
Moreover, because shading fan of the present invention can not have the housing of fan, but therefore heat dissipation region can be significantly improved, and noise content can be significantly reduced.
In addition, flow-guiding structure is set, can moderately changes the flow field of shading fan, and under the situation that does not increase noise content, further improve the radiating effect of shading fan in the shading fan periphery of projection optics assembly of the present invention.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, under the situation that does not break away from spirit of the present invention, also can make the variation or the replacement of various equivalences, therefore, as long as in connotation scope of the present invention in the scope to the variation of the foregoing description, claims that modification all will drop on the application.
Claims (10)
1. projection optics assembly comprises:
One shell has at least one radiating opening;
One projecting subassembly is positioned at this shell, in order to carry out video imaging action;
One light source is positioned at this shell, in order to this projecting subassembly light to be provided, and
At least one Frame-free fan, be positioned at this radiating opening place of this shell, this Frame-free fan is made of a hub portion and a plurality of flabellum, and those flabellums are located in this hub portion, and axially go up adjacent flabellum and partly overlap, this radiating opening is covered in the zone that those flabellums and this hub portion are constituted;
Wherein, the unglazed turnover of this radiating opening or only prevent the turnover of this light.
2. projection optics assembly as claimed in claim 1 is characterized in that this hub portion is made up of a plurality of shell structure, and these shell structure peripheries are equipped with a plurality of blades respectively, and these blades are formed these flabellums.
3. projection optics assembly as claimed in claim 1 is characterized in that these flabellums are to overlap mutually in the mode that one deck at least overlaps.
4. projection optics assembly as claimed in claim 1 is characterized in that also comprising a base, and this Frame-free fan is via this base on affixed this shell.
5. projection optics assembly as claimed in claim 1, it is characterized in that also comprising at least one flow-guiding structure, the position that is provided with of this flow-guiding structure is to be selected from this shell that is located on this radiating opening periphery, to be located on this shell of this Frame-free fan periphery or to be engaged on this Frame-free fan one of them around the mode of these flabellums.
6. projection optics assembly as claimed in claim 5 is characterized in that this flow-guiding structure is made of at least one training wall, and respectively has a specific gap between this training wall.
7. projection optics assembly as claimed in claim 1 is characterized in that being formed with at least one opening in this hub portion.
8. projection optics assembly as claimed in claim 1 is characterized in that also comprising a fair water fin, is positioned at this radiating opening portion.
9. projection optics assembly as claimed in claim 1 is characterized in that the air intake that these flabellums constitute covers face and goes out the measure-alike or different of windshield face.
10. a shading fan is applicable to that one has the projection optics assembly of a light source, and has at least one radiating opening on the shell of this projection optics assembly, comprising:
One hub portion; And
A plurality of flabellums, these flabellums are located in this hub portion, and axially go up adjacent flabellum and partly overlap, and this radiating opening is covered in the zone that these flabellums and this hub portion are constituted;
Wherein, the turnover of unglazed turnover of this radiating opening or the light that only prevents this light source and sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410042289XA CN100485519C (en) | 2004-05-10 | 2004-05-10 | Module of projectin optics and shading fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410042289XA CN100485519C (en) | 2004-05-10 | 2004-05-10 | Module of projectin optics and shading fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1696816A true CN1696816A (en) | 2005-11-16 |
| CN100485519C CN100485519C (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410042289XA Expired - Lifetime CN100485519C (en) | 2004-05-10 | 2004-05-10 | Module of projectin optics and shading fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100485519C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317150A (en) * | 2014-11-04 | 2015-01-28 | 深圳市安曼特微显示科技有限公司 | Lightproof two-bladed fan and projector |
| CN106321449A (en) * | 2015-06-16 | 2017-01-11 | 周先明 | Totally-sealed integral turbine |
| CN110703541A (en) * | 2019-09-20 | 2020-01-17 | 浙江华睿科技有限公司 | Heat dissipation mechanism and industrial camera |
| CN117942481A (en) * | 2024-03-25 | 2024-04-30 | 沈阳静安精神卫生医院有限公司 | Cognitive impairment crowd life ability rehabilitation training demonstration and monitoring equipment |
-
2004
- 2004-05-10 CN CNB200410042289XA patent/CN100485519C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317150A (en) * | 2014-11-04 | 2015-01-28 | 深圳市安曼特微显示科技有限公司 | Lightproof two-bladed fan and projector |
| CN106321449A (en) * | 2015-06-16 | 2017-01-11 | 周先明 | Totally-sealed integral turbine |
| CN110703541A (en) * | 2019-09-20 | 2020-01-17 | 浙江华睿科技有限公司 | Heat dissipation mechanism and industrial camera |
| CN110703541B (en) * | 2019-09-20 | 2021-07-20 | 浙江华睿科技有限公司 | Heat dissipation mechanism and industrial camera |
| CN117942481A (en) * | 2024-03-25 | 2024-04-30 | 沈阳静安精神卫生医院有限公司 | Cognitive impairment crowd life ability rehabilitation training demonstration and monitoring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100485519C (en) | 2009-05-06 |
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