CN105182669A - Digital light processing projector module - Google Patents
Digital light processing projector module Download PDFInfo
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- CN105182669A CN105182669A CN201510621738.4A CN201510621738A CN105182669A CN 105182669 A CN105182669 A CN 105182669A CN 201510621738 A CN201510621738 A CN 201510621738A CN 105182669 A CN105182669 A CN 105182669A
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- tabula rasa
- ray machine
- gear tabula
- opening
- plane opening
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Abstract
A digital light processing projector module disclosed by the present invention comprises a digital light processing projector shell, a first light barrier and a light guide pipe, the first light barrier is equipped with a first planar opening from which the light beams can pass, and the light guide pipe is equipped with an opening end facing the planar opening, wherein the first planar opening is equipped with a first longitudinal size and a first transverse size, and the first longitudinal size is less than the first transverse size. Namely, according to the present invention, by designing the first light barrier possessing the first planar opening, the useless light rays entering the interior of the digital light processing projector module are reduced, thereby reducing the heat energy entering the digital light processing projector module, and solving the problem that the temperature of the digital light processing projector module is overhigh.
Description
Technical field
The invention relates to a kind of projector, and relate to a kind of ray machine module for projector especially.
Background technology
Because numerical digit light process (DigitallightProcessing, DLP) projector has the advantages such as high brightness, height contrasts, color is true to nature, reaction velocity is fast, become the main product of projector in recent years.
Generally speaking, ray machine module collocation colour wheel module uses together, make be converted into coloured light during the not homochromy district of light by colour wheel, such as ruddiness, green glow and blue light etc., again with digitisation micro-mirror element (DigitalMicromirrorDevice, DMD) by colored light line projection to screen, formed image.But light can produce heat energy, more light to ray machine module internal represents that more heat energy enters in ray machine module, probably causes the temperature of ray machine module too high.
Therefore, be necessary to provide a kind of new ray machine module, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of ray machine module, simulate the optimization opening size that efficient beam can be allowed to pass through according to Experiments of Optics and design light barrier, to reduce useless light to ray machine module internal.
For reaching above-mentioned purpose, the invention provides a kind of ray machine module, comprising:
Ray machine housing;
First gear tabula rasa, this first gear tabula rasa is provided with the first plane opening allowing light beam pass through; And
Photoconductive tube, has towards the openend of this first plane opening;
Wherein, this first plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.
Preferably, also comprise second gear tabula rasa, this second gear tabula rasa is arranged on this openend, and this first gear tabula rasa is arranged on this ray machine housing, and this second gear tabula rasa is provided with the second plane opening that this light beam can be allowed to enter this photoconductive tube.
Preferably, this light beam is incident and focus on this second plane opening from this first plane opening, to form light cone, this light cone has the first cone angle on the direction of this first longitudinal size, this light cone has the second cone angle on the direction of this first lateral dimension, and this first cone angle is less than this second cone angle.
Preferably, the parallel relative and standoff distance of this first gear tabula rasa and this second gear tabula rasa, this first longitudinal size is determined by this first cone angle on the direction of this first longitudinal size of this light cone and this distance, and this first lateral dimension is by this second cone angle on the direction of this first lateral dimension of this light cone and the decision of this distance.
Preferably, this second plane opening has the second longitudinal size and the second lateral dimension, and wherein this second longitudinal size is less than this second lateral dimension.
Preferably, this first plane opening formed by the shaded portions of circular arc opening and the side that is positioned at this circular arc opening;
Or this first plane opening formed by circular arc opening and two shaded portions being positioned at these circular arc opening both sides.
Preferably, align with the center of this second plane opening in the center of this circular arc opening, and the center of the center of this circular arc opening and this second plane opening is all positioned on the optical axis of this light beam.
Preferably, this first gear tabula rasa and this second gear tabula rasa are the metal material of highly reflective.
Preferably, this first plane opening is inclined relative to horizontal and is arranged on this first gear tabula rasa, and this second plane opening is inclined relative to horizontal and is arranged on this second gear tabula rasa.
Preferably, this first gear tabula rasa is arranged on ray machine housing, and this first plane opening formed by the shaded portions of circular arc opening and the side that is positioned at this circular arc opening.
Preferably, also comprise second gear tabula rasa, be arranged on this openend, this second gear tabula rasa is provided with the second plane opening allowing this light beam enter this photoconductive tube, this light beam is incident and focus on this second plane opening from this first plane opening, and to form light cone, this light cone has the first cone angle on the direction of this first longitudinal size, this light cone has the second cone angle on the direction of this first lateral dimension, and this first cone angle is less than this second cone angle.
Preferably, this first plane opening is inclined relative to horizontal and is arranged on this first gear tabula rasa, and this second plane opening is inclined relative to horizontal and is arranged on this second gear tabula rasa.
Preferably, this first gear tabula rasa is arranged on this openend, and this first gear tabula rasa is the metal material of highly reflective, and clamps this photoconductive tube with fastener.
Preferably, also comprise:
Second gear tabula rasa, is arranged on ray machine housing, and this second gear tabula rasa is provided with the second plane opening that this light beam can be allowed to pass through;
Wherein this second plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.
Compared with prior art, the invention provides a kind of ray machine module, this ray machine module comprises ray machine housing, first gear tabula rasa and photoconductive tube, this first gear tabula rasa is provided with the first plane opening that light beam can be allowed to pass through, this photoconductive tube has the openend towards this plane opening, wherein, this first plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.Namely the first gear tabula rasa that the present invention has the first plane opening by design enters ray machine module internal to reduce useless light, thus reduces the heat energy entered in ray machine module, realizes solving the problem that the temperature of ray machine module is too high.
Accompanying drawing explanation
Fig. 1 is the side schematic view of embodiment of the present invention ray machine module
Fig. 2 is the sectional perspective schematic diagram of embodiment of the present invention ray machine module.
Fig. 3 is the configuration schematic diagram of photoconductive tube, first gear tabula rasa and second gear tabula rasa.
Fig. 4 is the schematic diagram that efficient beam forms light cone.
Fig. 5 A to 5C figure is the schematic diagram of the first plane opening of different embodiment.
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.
Please refer to shown in Fig. 1 and Fig. 2, wherein Fig. 1 is the side schematic view of embodiment of the present invention ray machine module, and Fig. 2 is the sectional perspective schematic diagram of embodiment of the present invention ray machine module.As depicted in figs. 1 and 2, ray machine module 100 comprises ray machine housing 110, first gear tabula rasa 120, second gear tabula rasa 130 and photoconductive tube 140 (see Fig. 2).First gear tabula rasa 120 is arranged on ray machine housing 110, and first gear tabula rasa 120 is provided with the first plane opening 122 that light beam L can be allowed to pass through.From the visual angle of Fig. 1, first gear tabula rasa 120 is positioned on X-Y plane haply, and the first plane opening 122 is for being positioned at the opening on X-Y plane.In the present embodiment, the first plane opening 122 has the first longitudinal size A and the first transverse dimension B.First longitudinal size A refers to that the first plane opening 122 is positioned on X axis or is positioned at relative to the size in the orientation of X axis inclination minute angle, and the first transverse dimension B refers to that the first plane opening 122 is positioned in Y-axis or is positioned at relative to the size in the orientation of Y-axis inclination minute angle.Wherein, light beam L is provided by the light supply apparatus outside ray machine housing 110.
Varying in size of first longitudinal size A and the first transverse dimension B.In the present embodiment, first longitudinal size A is such as less than the first transverse dimension B, first longitudinal size A is relevant with the optical characteristics being incident to the light beam L in ray machine module 100 by the first plane opening 122 with the size of the first transverse dimension B, is described please with reference to Fig. 4.
In addition, from the visual angle of Fig. 1, also can see that photoconductive tube 140 has towards the openend 142 (see Fig. 2) of the first plane opening 122 and the second gear tabula rasa 130 that is arranged on openend 142.Second gear tabula rasa 130 is provided with the second plane opening 132 that above-mentioned light beam L can be allowed to enter photoconductive tube 140.
Second gear tabula rasa 130 is arranged at after first gear tabula rasa 120, parallel relative with first gear tabula rasa 120.That is, in the present embodiment, second gear tabula rasa 130 is positioned on X-Y plane haply, and the second plane opening 132 is for being positioned at the opening on X-Y plane.In the present embodiment, first plane opening 122 is inclined relative to horizontal and is arranged at first gear tabula rasa 120, second plane opening 132 is inclined relative to horizontal and is arranged on second gear tabula rasa 130, is incident in the light path of ray machine module 100 inside via the first plane opening 122 be obliquely installed and the second plane opening 132 to make light beam L with predetermined pitch angle.
Please refer to Fig. 1, the second plane opening 132 has the second longitudinal size C and the second lateral dimension D.Second longitudinal size C and the second lateral dimension D varies in size, and in the present embodiment, the second longitudinal size C is such as less than the second lateral dimension D.For rectangular aperture, the ratio of the second longitudinal size C and the second lateral dimension D can be 9:16 or other numerical value.
Clearly, the ratio of the first longitudinal size A and the first transverse dimension B can equal the ratio of the second longitudinal size C and the second lateral dimension D.That is, when the ratio of the second longitudinal size C and the second lateral dimension D is 9:16, the ratio of the first longitudinal size A and the first transverse dimension B can be 9:16 or close to 9:16.
Please refer to Fig. 2 and Fig. 3, wherein Fig. 3 is the configuration schematic diagram of photoconductive tube 140, first gear tabula rasa 120 and second gear tabula rasa 130.In figure 3, second gear tabula rasa 130 clamps photoconductive tube 140 with fastener 131 (being such as shell fragment or fixture), and is stretched out by the openend 142 of photoconductive tube 140, in order to stop useless light.Second gear tabula rasa 130 is preferably the metal material (such as aluminium sheet or stainless steel) of highly reflective, but not as limit, and other highly reflectives and resistant to elevated temperatures material also can adopt, and concentrate on second gear tabula rasa 130 to reduce heat.From the visual angle of Fig. 2, first gear tabula rasa 120 and standoff distance d relative with second gear tabula rasa 130, and distance d is positioned in the Z-direction of vertical X-Y plane.This distance d is relevant with the optical characteristics of incident beam L, and when the cone angle of the light cone P that incident beam L is formed is larger, distance d is shorter; Otherwise more hour, distance d is longer for the cone angle of the light cone P formed as incident beam L.
In fig. 2, ray machine housing 110 is provided with groove 112, and photoconductive tube 140 is arranged in groove 112.When light beam L is incident and when focusing on the second plane opening 132 from the first plane opening 122, segment beam L is stopped by first gear tabula rasa 120 and is not entered in groove 112, then, the light beam L entered in groove 112 still has part stopped by second gear tabula rasa 130 and do not enter into photoconductive tube 140.Therefore, only there is in Fig. 2 the efficient beam L forming light cone P could be incident and focus on the second plane opening 132 from the first plane opening 122, to avoid useless light inner and cause the temperature of ray machine module 100 too high to ray machine module 100.
When efficient beam L enters in ray machine module 100 through photoconductive tube 140, efficient beam L is projected to screen, to be presented on screen by image again after digitisation micro-mirror element (figure does not illustrate) and camera lens (figure does not illustrate).
Please refer to Fig. 4, for efficient beam L forms the schematic diagram of light cone P.Light cone P has the first cone angle on the direction (X axis) of the first longitudinal size A, and light cone P has the second cone angle beta on the direction (Y-axis) of the first transverse dimension B.In the present embodiment, the first cone angle is such as less than the second cone angle beta.
The present invention can simulate the optimization opening size that efficient beam L can be allowed to pass through according to Experiments of Optics and design first gear tabula rasa 120, inner to ray machine module 100 to reduce useless light.That is, when the cone angle of efficient beam L and the distance d between first gear tabula rasa 120 and second gear tabula rasa 130 are known, calculate the first longitudinal size A and first transverse dimension B of first gear tabula rasa 120, to obtain optimized opening size.In the present embodiment, according to the triangle cosine law, the first longitudinal size A is determined by first cone angle of light cone P on the direction of the first longitudinal size A and distance d.In addition, the first transverse dimension B is determined by second cone angle beta of light cone P on the direction of the first transverse dimension B and distance d.Preferably, the size of the hot spot that the size of this second plane opening 132 and this light cone P drop on this second plane opening 132 matches, the size of the hot spot that the size of this first plane opening 122 and this light cone P drop on this first plane opening 122 matches, but not as limit.
First gear tabula rasa 120 and second gear tabula rasa 130 can be the metal material of highly reflective, such as stainless steel or aluminium sheet.Relative to the ray machine housing 110 made with the metal material of cast iron or extrusion molding, first gear tabula rasa 120 and second gear tabula rasa 130 can be passed through high complanation polishing to increase light reflective, to increase the effect that is in the light.
Please refer to Fig. 5 A to 5C, is the schematic diagram of the first plane opening 122 of different embodiment.In fig. 5, first plane opening 122 formed by circular arc opening 123 and two shaded portions 124 (being such as semilune) of being positioned at circular arc opening 123 both sides, and these two shaded portions 124 lay respectively at upside and the downside of the first plane opening 122, in order to stop by the top of the first plane opening 122 and the useless light of below incidence.
In Fig. 5 B and 5C, first plane opening 122 formed by the shaded portions 124 (being such as semilune) of circular arc opening 123 and the side that is positioned at circular arc opening 123, and this shaded portions 124 correspondence covers upside or the downside of the first plane opening 122, in order to stop by useless light incident above or below the first plane opening 122.
In fig. 5, the first longitudinal size A of the first plane opening 122 is less than the first longitudinal size A ' of the first plane opening 122 in Fig. 5 B and 5C, and then increases useless light by the area stopped.Therefore, the present invention can adjust the longitudinal size of the first plane opening 122 according to the demand of reality, to obtain optimized opening size.
In the present embodiment, when the first plane opening 122 with second plane opening 132 parallel relative time, the center O1 of circular arc opening 123 aligns the center O2 of the second plane opening 132, and the center O2 of the center O1 of circular arc opening 123 and the second plane opening 132 is such as positioned on the optical axis Ax (Z-direction see Fig. 3) of light beam L, is vertically incident in photoconductive tube 140 to make light beam L.But in another embodiment, the center O1 of circular arc opening 123 can not line up the center O2 of the second plane opening 132, and the center O2 of the center O1 of circular arc opening 123 and the second plane opening 132 also can not be positioned on the optical axis Ax of light beam L.
Ray machine module disclosed by the above embodiment of the present invention, the optical characteristics according to incident beam is tested, and the optimization opening size that simulation can allow efficient beam pass through designs light barrier, to reduce useless light to ray machine module internal.That is, when the cone angle of efficient beam and the distance between first gear tabula rasa and second gear tabula rasa are known, calculate the first longitudinal size and first lateral dimension of first gear tabula rasa, to obtain optimized opening size.Therefore, the efficient beam being incident to ray machine module internal can be controlled in ideally, useless light is stopped again by the first gear tabula rasa of highly reflective and second gear tabula rasa, to reduce the heat energy entered in ray machine module, and then the problem that the temperature solving known ray machine module is too high.
In addition, above-described embodiment all comprises first gear tabula rasa 120 for ray machine module 100 and second gear tabula rasa 130 is described, and in practical application, ray machine module 100 can only include the first gear tabula rasa 120 in above-described embodiment, or ray machine module 100 can only include the second gear tabula rasa 130 in above-described embodiment, also can realize reducing the effect that useless optics is incident to ray machine module internal, specifically be determined according to actual conditions by design consideration, do not repeat them here.
To sum up, the invention provides a kind of ray machine module, this ray machine module comprises ray machine housing, first gear tabula rasa and photoconductive tube, this first gear tabula rasa is provided with the first plane opening that light beam can be allowed to pass through, this photoconductive tube has the openend towards this first plane opening, wherein, this first plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.Namely the first gear tabula rasa that the present invention has the first plane opening by design enters ray machine module internal to reduce useless light, thus reduces the heat energy entered in ray machine module, realizes solving the problem that the temperature of ray machine module is too high.
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 (14)
1. a ray machine module, is characterized in that, comprising:
Ray machine housing;
First gear tabula rasa, is provided with the first plane opening allowing light beam pass through; And
Photoconductive tube, has towards the openend of this first plane opening;
Wherein, this first plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.
2. ray machine module as claimed in claim 1, it is characterized in that, also comprise second gear tabula rasa, this second gear tabula rasa is arranged on this openend, and this first gear tabula rasa is arranged on this ray machine housing, this second gear tabula rasa is provided with the second plane opening allowing this light beam enter this photoconductive tube.
3. ray machine module as claimed in claim 2, it is characterized in that, this light beam is incident and focus on this second plane opening from this first plane opening, to form light cone, this light cone has the first cone angle on the direction of this first longitudinal size, this light cone has the second cone angle on the direction of this first lateral dimension, and this first cone angle is less than this second cone angle.
4. ray machine module as claimed in claim 3, it is characterized in that, the parallel relative and standoff distance of this first gear tabula rasa and this second gear tabula rasa, this first longitudinal size is determined by this first cone angle on the direction of this first longitudinal size of this light cone and this distance, and this first lateral dimension is by this second cone angle on the direction of this first lateral dimension of this light cone and the decision of this distance.
5. ray machine module as claimed in claim 2, it is characterized in that, this second plane opening has the second longitudinal size and the second lateral dimension, and wherein this second longitudinal size is less than this second lateral dimension.
6. ray machine module as claimed in claim 2, is characterized in that, this first plane opening formed by the shaded portions of circular arc opening and the side that is positioned at this circular arc opening;
Or this first plane opening formed by circular arc opening and two shaded portions being positioned at these circular arc opening both sides.
7. ray machine module as claimed in claim 6, it is characterized in that, align with the center of this second plane opening in the center of this circular arc opening, and the center of the center of this circular arc opening and this second plane opening is all positioned on the optical axis of this light beam.
8. ray machine module as claimed in claim 2, it is characterized in that, this first gear tabula rasa and this second gear tabula rasa are the metal material of highly reflective.
9. ray machine module as claimed in claim 2, it is characterized in that, this first plane opening is inclined relative to horizontal and is arranged on this first gear tabula rasa, and this second plane opening is inclined relative to horizontal and is arranged on this second gear tabula rasa.
10. ray machine module as claimed in claim 1, it is characterized in that, this first gear tabula rasa is arranged on this ray machine housing, and this first plane opening formed by the shaded portions of circular arc opening and the side that is positioned at this circular arc opening.
11. ray machine modules as claimed in claim 10, it is characterized in that, also comprise second gear tabula rasa, be arranged on this openend, this second gear tabula rasa is provided with the second plane opening allowing this light beam enter this photoconductive tube, this light beam is incident and focus on this second plane opening from this first plane opening, to form light cone, this light cone has the first cone angle on the direction of this first longitudinal size, this light cone has the second cone angle on the direction of this first lateral dimension, and this first cone angle is less than this second cone angle.
12. ray machine modules as claimed in claim 11, is characterized in that, this first plane opening is inclined relative to horizontal and is arranged on this first gear tabula rasa, and this second plane opening is inclined relative to horizontal and is arranged on this second gear tabula rasa.
13. ray machine modules as claimed in claim 1, it is characterized in that, this first gear tabula rasa is arranged on this openend, and this first gear tabula rasa is the metal material of highly reflective, and clamps this photoconductive tube with fastener.
14. ray machine modules as claimed in claim 13, is characterized in that, also comprise:
Second gear tabula rasa, is arranged on this ray machine housing, and this second gear tabula rasa is provided with the second plane opening that this light beam can be allowed to pass through;
Wherein this second plane opening has the first longitudinal size and the first lateral dimension, and this first longitudinal size is less than this first lateral dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621738.4A CN105182669B (en) | 2015-09-25 | 2015-09-25 | Ray machine module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621738.4A CN105182669B (en) | 2015-09-25 | 2015-09-25 | Ray machine module |
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| CN105182669A true CN105182669A (en) | 2015-12-23 |
| CN105182669B CN105182669B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510621738.4A Active CN105182669B (en) | 2015-09-25 | 2015-09-25 | Ray machine module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363360A (en) * | 2020-06-15 | 2021-02-12 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
| CN108292085B (en) * | 2016-01-08 | 2021-04-09 | 麦克赛尔株式会社 | Projector apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001201794A (en) * | 2000-11-16 | 2001-07-27 | Seiko Epson Corp | Projector |
| CN1510473A (en) * | 2002-12-20 | 2004-07-07 | 精工爱普生株式会社 | Electro-optical device in installing shell and projecting displaying device |
| CN1971405A (en) * | 2005-11-24 | 2007-05-30 | 日本电气视象技术株式会社 | Structure for protecting a rod integrator having a light shield plate with an opening |
| TW200742926A (en) * | 2006-05-05 | 2007-11-16 | Benq Corp | Image forming apparatus and light-shielding device thereof |
| JP2009008808A (en) * | 2007-06-27 | 2009-01-15 | Sony Corp | Optical unit and display device |
| JP2015055702A (en) * | 2013-09-11 | 2015-03-23 | セイコーエプソン株式会社 | Projector |
-
2015
- 2015-09-25 CN CN201510621738.4A patent/CN105182669B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001201794A (en) * | 2000-11-16 | 2001-07-27 | Seiko Epson Corp | Projector |
| CN1510473A (en) * | 2002-12-20 | 2004-07-07 | 精工爱普生株式会社 | Electro-optical device in installing shell and projecting displaying device |
| CN1971405A (en) * | 2005-11-24 | 2007-05-30 | 日本电气视象技术株式会社 | Structure for protecting a rod integrator having a light shield plate with an opening |
| TW200742926A (en) * | 2006-05-05 | 2007-11-16 | Benq Corp | Image forming apparatus and light-shielding device thereof |
| JP2009008808A (en) * | 2007-06-27 | 2009-01-15 | Sony Corp | Optical unit and display device |
| JP2015055702A (en) * | 2013-09-11 | 2015-03-23 | セイコーエプソン株式会社 | Projector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108292085B (en) * | 2016-01-08 | 2021-04-09 | 麦克赛尔株式会社 | Projector apparatus |
| CN112363360A (en) * | 2020-06-15 | 2021-02-12 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
| CN112363360B (en) * | 2020-06-15 | 2022-12-13 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
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| CN105182669B (en) | 2017-05-31 |
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