CN209979994U - Light-emitting angle adjusting structure of three-optical-path 3D projection equipment - Google Patents
Light-emitting angle adjusting structure of three-optical-path 3D projection equipment Download PDFInfo
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- CN209979994U CN209979994U CN201920885690.1U CN201920885690U CN209979994U CN 209979994 U CN209979994 U CN 209979994U CN 201920885690 U CN201920885690 U CN 201920885690U CN 209979994 U CN209979994 U CN 209979994U
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Abstract
The utility model discloses a light-emitting angle adjusting structure of three-optical-path 3D projection equipment, which comprises a shell, an adjustable optical component, a lens component, a first reflecting component and a second reflecting component; the first reflection assembly, the second reflection assembly and the adjustable optical assembly are all positioned in the shell, the first reflection assembly is obliquely arranged at the top of the inner cavity of the shell, the second reflection assembly is obliquely arranged at the bottom of the inner cavity of the shell, the adjustable optical assembly is positioned between the first reflection assembly and the second reflection assembly, and the shell is provided with a light inlet; the first reflection assembly and the second reflection assembly are rotatably arranged in the shell, and angle adjusting assemblies are arranged between the first reflection assembly and the inner wall of the shell and between the second reflection assembly and the inner wall of the shell; the lens component is positioned at the front end of the adjustable optical component, and a distance adjusting component is arranged on the side edge of the adjustable optical component; the utility model has the advantages that: the adjustment of the angles of the transmitted beam and the polarized beam is facilitated.
Description
Technical Field
The utility model relates to a projection equipment technical field, more specifically the utility model relates to a three light path 3D projection equipment's light-emitting angle regulation structure.
Background
3D projection displays are increasingly used with their vivid and stereoscopic display effect. The commonly used projector in the cinema needs special 3D equipment in order to realize the 3D effect, the commonly used 3D equipment at present can utilize a polarizer to convert image light with natural light attribute into linearly polarized light, then the linearly polarized light is converted into time sequence left-handed circularly polarized light and time sequence right-handed circularly polarized light through a time sequence modulated liquid crystal device, the left-handed circularly polarized light and the right-handed circularly polarized light are respectively left-eye image light and right-eye image light, and the left-handed circularly polarized light and the right-eye image light are overlapped to realize the 3D.
Before the 3D projection equipment is put into use, the 3D projection equipment is often required to be adjusted so as to achieve the best projection effect, for example, the light-emitting angle of polarized light is adjusted, and the contrast and the definition of influences on a projection curtain are improved. However, in the 3D projection device in the prior art, the adjustment structure is generally disposed outside the 3D projection device, so that the overall size of the projection device is increased, and the problems of complicated structure and complicated adjustment process exist.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a three light path 3D projection equipment's light-emitting angle adjusts structure, and this structure is convenient for realize the adjustment to transmission beam and polarized light beam angle, and overall structure retrencies, and adjustment process is simple swift.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a light-emitting angle of three light path 3D projection equipment adjusts structure, its improvement lies in: comprises a shell, an adjustable optical component, a lens component, a first reflecting component and a second reflecting component;
the first reflection assembly, the second reflection assembly and the adjustable optical assembly are all positioned in the shell, the first reflection assembly is obliquely arranged at the top of the inner cavity of the shell, the second reflection assembly is obliquely arranged at the bottom of the inner cavity of the shell, the adjustable optical assembly is positioned between the first reflection assembly and the second reflection assembly, and the shell is provided with a light inlet;
the first reflection assembly and the second reflection assembly are rotatably arranged in the shell, and angle adjusting assemblies are arranged between the first reflection assembly and the inner wall of the shell and between the second reflection assembly and the inner wall of the shell; the lens assembly is positioned at the front end of the adjustable optical assembly, and a distance adjusting assembly is arranged on the side edge of the adjustable optical assembly and used for adjusting the distance between the adjustable optical assembly and the lens assembly.
In the above structure, the angle adjusting assembly includes an adjusting lever, a fixing column, a rotating connecting rod and an adjusting screw;
the fixing column is arranged on the inner wall of the shell, one end of the adjusting rod is rotatably connected to the fixing column, the other end of the adjusting rod is a free end, a screw fixing block is fixed on the inner wall of the shell, the adjusting screw is arranged in a screw hole of the screw fixing block, and the top end of the adjusting screw abuts against the free end of the adjusting rod; one end of the rotating connecting rod is rotatably connected with the middle of the adjusting rod, and the other end of the rotating connecting rod is rotatably connected to the side edge of the first reflecting assembly.
In the above structure, the angle adjustment assembly further includes a limiting post fixed on the inner wall of the housing, and the limiting post and the adjusting screw are respectively located at two sides of the free end of the adjusting rod.
In the structure, a through hole is formed in the middle of the adjusting rod, a connecting column is arranged in the through hole, and one end of the rotating connecting rod is rotatably connected with the connecting column; and clamp springs are arranged at the top ends of the connecting columns and the top ends of the fixing columns.
In the above structure, the adjustable optical assembly includes a first fixing frame, a second fixing frame and a prism assembly;
the first fixing frame and the second fixing frame are frame-shaped, the prism assembly is fixed in the first fixing frame, the lens assembly is fixed in the second fixing frame, the second fixing frame is positioned on one side of the first fixing frame, and the distance adjusting assembly is arranged between the first fixing frame and the second fixing frame.
In the structure, the distance adjusting assembly comprises an adjusting screw rod, a fixing nut, a connecting block, a sliding rail and a sliding block;
one end of the connecting block and the fixing nut are fixed on the side wall of the second fixing frame, the sliding rail is fixed on the side wall of the first fixing frame along the horizontal direction, the sliding block is arranged on the sliding rail in a sliding mode, and the sliding block is fixedly connected with the other end of the connecting block; adjusting screw rotate and install on the lateral wall of first mount, adjusting screw's top has the external screw thread, and adjusting screw's top and fixation nut looks adaptation.
In the structure, the side wall of the first fixing frame is provided with a fixing block protruding outwards, the fixing block is provided with a bearing, and the adjusting screw rod is fixed in a central hole of the bearing.
In the above structure, the prism assembly is composed of an incident prism, a first refractive prism, a second refractive prism, a third refractive prism, and an emergent prism;
the longitudinal section of the light incidence prism is an obtuse isosceles triangle, the structures of the first refraction prism and the second refraction prism are the same, the longitudinal section of the light incidence prism is an acute triangle, the longitudinal section of the third refraction prism is a right isosceles triangle, and the added angle of the obtuse angle of the light incidence prism, the right angle of the third refraction prism, one acute angle of the first refraction prism and one acute angle of the second refraction prism is 360 degrees;
in the longitudinal section of the third refraction prism, the plane where the bevel edge is located is a first plane, the light-emitting prism is provided with a second plane, and the second plane is tightly attached to the first plane of the third refraction prism.
In the structure, the shell is provided with a front cover plate, and the front cover plate is sequentially provided with a first glass plate, a second glass plate and a third glass plate corresponding to the positions of the first reflection assembly, the lens assembly and the second reflection assembly;
the third glass plate is in a vertical state, and the included angle between the extension lines of the first glass plate and the third glass plate and the included angle between the extension lines of the second glass plate and the third glass plate are acute angles.
The utility model has the advantages that: the optimal projection requirement is met through the adjustment and matching of the angle adjusting assembly and the distance adjusting assembly, the adjustment of the angles of the transmission beams and the polarization beams is convenient to realize through the structure, the whole structure is simplified, and the adjusting process is simple and quick.
Drawings
Fig. 1 is the utility model discloses a three-dimensional structure schematic diagram of light-emitting angle adjusting structure of three light path 3D projection equipment.
Fig. 2 is the utility model discloses a three light path 3D projection apparatus's light-emitting angle adjustment structure's decomposition structure sketch map.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is the utility model discloses a three light path 3D projection equipment's light-emitting angle adjusts the adjustable optical assembly's of structure schematic diagram.
Fig. 5 is a schematic exploded view of the adjustable optical assembly of the light-emitting angle adjusting structure of the three-optical-path 3D projection apparatus of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
Referring to fig. 1, 2 and 3, the present invention discloses a light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus, specifically, the structure includes a housing 10, an adjustable optical assembly 20, a lens assembly 40, a first reflective assembly 60 and a second reflective assembly 70; the first reflection assembly 60, the second reflection assembly 70 and the adjustable optical assembly 20 are all located inside the housing 10, the first reflection assembly 60 is obliquely arranged at the top of the inner cavity of the housing 10, the second reflection assembly 70 is obliquely arranged at the bottom of the inner cavity of the housing 10, the adjustable optical assembly 20 is located between the first reflection assembly 60 and the second reflection assembly 70, and the housing 10 is provided with a light inlet 101; in projection, light enters the adjustable optical assembly 20 from the light inlet, and after refraction and reflection of the adjustable optical assembly 20, a part of light directly exits through the lens assembly 40, a part of light exits through reflection of the first reflection assembly 60, and a part of light exits through reflection of the second reflection assembly 70.
In the above embodiment, the first reflection assembly 60 and the second reflection assembly 70 are both rotatably installed inside the housing 10, and the angle adjustment assemblies 80 are disposed between the first reflection assembly 60 and the inner wall of the housing 10, and between the second reflection assembly 70 and the inner wall of the housing 10; the lens assembly 40 is located at the front end of the adjustable optical assembly 20, and a distance adjusting assembly 90 is disposed on a side edge of the adjustable optical assembly 20, where the distance adjusting assembly 90 is used for adjusting a distance between the adjustable optical assembly 20 and the lens assembly 40. The optimal projection requirement is met through the adjustment and matching of the angle adjusting assembly 80 and the distance adjusting assembly 90, the adjustment of the angles of the transmission beams and the polarization beams is convenient to realize through the structure, the whole structure is simplified, and the adjusting process is simple and quick.
As for the angle adjustment assembly 80, as shown in fig. 2 and 3, the present invention provides a specific embodiment, the angle adjustment assembly 80 includes an adjustment rod 801, a fixing column 802, a rotation connecting rod 803 and an adjustment screw 804; the fixing column 802 is arranged on the inner wall of the shell 10, one end of the adjusting rod 801 is rotatably connected to the fixing column 802, the other end of the adjusting rod 801 is a free end, a screw fixing block 805 is fixed on the inner wall of the shell 10, the adjusting screw 804 is arranged in a screw hole of the screw fixing block 805, and the top end of the adjusting screw 804 abuts against the free end of the adjusting rod 801; one end of the rotating connecting rod 803 is rotatably connected to the middle of the adjusting rod 801, and the other end of the rotating connecting rod 803 is rotatably connected to the side of the first reflecting assembly 60. In addition, in this embodiment, the angle adjustment assembly 80 further includes a limiting post 806, the limiting post 806 is fixed on the inner wall of the housing 10, and the limiting post 806 and the adjusting screw 804 are respectively located at two sides of the free end of the adjusting rod 801. A through hole is formed in the middle of the adjusting rod 801, a connecting column 807 is arranged in the through hole, and one end of the rotating connecting rod 803 is rotatably connected with the connecting column 807; the top end of the connecting column 807 and the top end of the fixing column 802 are both provided with clamp springs.
With the structure, the angle adjusting component 80 is arranged in the shell 10, and the hidden structure design improves the integral aesthetic property; when the angle of the first reflection assembly 60 needs to be adjusted, the adjusting screw 804 is rotated from the rear part of the housing 10, the top end of the adjusting screw 804 is pressed on the adjusting rod 801, so that the adjusting rod 801 rotates relative to the fixing column 802, the first reflection assembly 60 is pulled through the action of the rotating connecting rod 803, and the angle of the first reflection assembly 60 is adjusted because one end of the first reflection assembly 60 is rotatably connected with the housing 10; in addition, the other side of the first reflection assembly 60 is also connected with a return spring, the other end of the return spring is fixed on the inner wall of the housing 10, when the angle of the first reflection assembly 60 needs to be reversely adjusted, the adjusting screw 804 is reversely rotated, and the first reflection assembly 60 reversely rotates under the action of the return spring, so that the reverse adjustment of the first reflection assembly 60 is realized; the integral structure of the angle adjusting assembly 80 is exquisite, the light emitting of the first reflection assembly 60 cannot be affected, the angle adjustment of the light emitting lens is convenient to realize, the adjusting process is simple and fast, and the adjusting efficiency is improved.
In the above embodiment, for the adjustable optical assembly 20, the present invention provides a specific embodiment, as shown in fig. 3 and 4, the adjustable optical assembly 20 includes a first fixing frame 201, a second fixing frame 202, a prism assembly 30 and an adjusting lens 203; the first fixing frame 201 and the second fixing frame 202 are frame-shaped, the prism assembly 30 is fixed in the first fixing frame 201, the adjusting lens 203 is fixed in the second fixing frame 202, and the second fixing frame 202 is positioned at one side of the first fixing frame 201; the distance adjusting assembly 90 is disposed on two sides of the first fixing frame 201 and the second fixing frame 202, in this embodiment, a structure of one distance adjusting assembly 90 is described in detail, the distance adjusting assembly 90 includes an adjusting screw 501, a fixing nut 502, a connecting block 503, a sliding rail 504 and a sliding block 505, one end of the connecting block 503 and the fixing nut 502 are both fixed on a side wall of the second fixing frame 202, the sliding rail 504 is fixed on the side wall of the first fixing frame 201 along a horizontal direction, the sliding block 505 is slidably disposed on the sliding rail 504, and the sliding block 505 is fixedly connected with the other end of the connecting block 503; the adjusting screw 501 is rotatably mounted on the side wall of the first fixing frame 201, the top end of the adjusting screw 501 is provided with an external thread, and the top end of the adjusting screw 501 is matched with the fixing nut 502.
With the structure, when the position of the adjusting lens 203 needs to be adjusted, the adjusting screw 501 is rotated, and the position of the adjusting screw 501 is not changed because the adjusting screw 501 is rotatably mounted on the first fixing frame 201, so that the fixing nut 502 moves on the adjusting screw 501 to drive the adjusting lens 203 to be far away from or close to the prism assembly 30, and the requirements of projection under different conditions are met; the adjusting mode is simple and quick, and the user experience is improved, so that the optimal projection effect is achieved. In the process, due to the matching of the sliding rail 504 and the sliding block 505, the sliding rail 504 is arranged along the moving direction of the adjusting lens 203, so that the movement of the adjusting lens 203 is guided, the adjusting lens 203 is prevented from moving in the vertical direction in the moving process, and the adjusting precision is improved. In the above embodiment, the side wall of the first fixing frame 201 is provided with a fixing block 506 protruding outwards, the fixing block 506 is provided with a bearing, and the adjusting screw 501 is fixed in the central hole of the bearing. In addition, the fixing block 506 is further provided with a plurality of screw holes, so as to facilitate the installation and fixation of the first fixing frame 201.
Further, as shown in fig. 5, the first fixing frame 201 includes a first side vertical plate 2011, a second side vertical plate 2012 and a frame plate 2013, the first side vertical plate 2011 and the second side vertical plate 2012 are oppositely disposed, two ends of the frame plate 2013 are respectively fixedly connected to the first side vertical plate 2011 and the second side vertical plate 2012, and the prism assembly 30 is located between the first side vertical plate 2011 and the second side vertical plate 2012; this kind of structure can be changed prism assembly 30, when prism assembly 30 damages, perhaps different projection demands, is convenient for change prism assembly 30. In addition, the top of first side riser 2011 and the top of second side riser 2012 all are provided with apron 2014, and the apron is pressed on prism assembly 30's both ends, realizes prism assembly 30's spacing through the apron, avoids prism assembly 30 to break away from in first mount 201.
As shown in fig. 5, for the prism assembly 30, the present invention provides a specific embodiment, the prism assembly 30 is composed of an incident prism 301, a first refractive prism 302, a second refractive prism 303, a third refractive prism 304 and an emergent prism 305; the longitudinal section of the light incidence prism 301 is an obtuse isosceles triangle, the structures of the first refraction prism 302 and the second refraction prism 303 are the same, the longitudinal section is an acute triangle, the longitudinal section of the third refraction prism 304 is a right isosceles triangle, and the angle formed by adding the obtuse angle of the light incidence prism 301, the right angle of the third refraction prism 304, one acute angle of the first refraction prism 302 and one acute angle of the second refraction prism 303 is 360 degrees; in the longitudinal section of the third folding prism 304, the plane where the hypotenuse is located is the first plane, the light-emitting prism 305 has the second plane, and the second plane is closely attached to the first plane of the third folding prism 304. The design of the structure ensures that the gap between the adjacent prisms is small, avoids diffraction, and enlarges the visual angle through the combination of a plurality of prisms.
Through the structure, after the projection light enters the prism assembly, through refraction and reflection of the prism assembly, a part of light penetrates through the lens assembly 40 to be emitted, a part of light is emitted through reflection of the first reflection assembly 60, a part of light is emitted through reflection of the second reflection assembly 70, and the three parts of light are combined and overlapped to realize the 3D projection effect. In addition, the housing 10 is provided with a front cover plate 102, and the front cover plate 102 is provided with a first glass plate 103, a second glass plate 104 and a third glass plate 105 in sequence corresponding to the positions of the first reflection assembly 60, the lens assembly 40 and the second reflection assembly 70; the third glass plate 105 is in a vertical state, and the included angle between the extension lines of the first glass plate 103 and the third glass plate 105 and the included angle between the extension lines of the second glass plate 104 and the third glass plate 105 are acute angles; in the adjusting process of the first reflection assembly 60 and the second reflection assembly 70, the light reflected by the first reflection assembly 60 is perpendicular to the first glass plate 103, and the light reflected by the second reflection assembly 70 is perpendicular to the second glass plate 104, so that the light passes through the first glass plate 103 and the second glass plate 104 at a better angle, and the contrast of the projected image after projection is improved.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (9)
1. The utility model provides a three light path 3D projection equipment's light-emitting angle adjusts structure which characterized in that: comprises a shell, an adjustable optical component, a lens component, a first reflecting component and a second reflecting component;
the first reflection assembly, the second reflection assembly and the adjustable optical assembly are all positioned in the shell, the first reflection assembly is obliquely arranged at the top of the inner cavity of the shell, the second reflection assembly is obliquely arranged at the bottom of the inner cavity of the shell, the adjustable optical assembly is positioned between the first reflection assembly and the second reflection assembly, and the shell is provided with a light inlet;
the first reflection assembly and the second reflection assembly are rotatably arranged in the shell, and angle adjusting assemblies are arranged between the first reflection assembly and the inner wall of the shell and between the second reflection assembly and the inner wall of the shell; the lens assembly is positioned at the front end of the adjustable optical assembly, and a distance adjusting assembly is arranged on the side edge of the adjustable optical assembly and used for adjusting the distance between the adjustable optical assembly and the lens assembly.
2. The light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus according to claim 1, wherein: the angle adjusting assembly comprises an adjusting rod, a fixed column, a rotating connecting rod and an adjusting screw;
the fixing column is arranged on the inner wall of the shell, one end of the adjusting rod is rotatably connected to the fixing column, the other end of the adjusting rod is a free end, a screw fixing block is fixed on the inner wall of the shell, the adjusting screw is arranged in a screw hole of the screw fixing block, and the top end of the adjusting screw abuts against the free end of the adjusting rod; one end of the rotating connecting rod is rotatably connected with the middle of the adjusting rod, and the other end of the rotating connecting rod is rotatably connected to the side edge of the first reflecting assembly.
3. The light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus according to claim 2, wherein: the angle adjusting assembly further comprises a limiting column, the limiting column is fixed on the inner wall of the shell, and the limiting column and the adjusting screw are respectively located on two sides of the free end of the adjusting rod.
4. The light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus according to claim 2, wherein: a through hole is formed in the middle of the adjusting rod, a connecting column is arranged in the through hole, and one end of the rotating connecting rod is rotatably connected with the connecting column; and clamp springs are arranged at the top ends of the connecting columns and the top ends of the fixing columns.
5. The light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus according to claim 1, wherein: the adjustable optical component comprises a first fixed frame, a second fixed frame and a prism component;
the first fixing frame and the second fixing frame are frame-shaped, the prism assembly is fixed in the first fixing frame, the lens assembly is fixed in the second fixing frame, the second fixing frame is positioned on one side of the first fixing frame, and the distance adjusting assembly is arranged between the first fixing frame and the second fixing frame.
6. The light-emitting angle adjusting structure of a three-optical-path 3D projection device according to claim 5, wherein: the distance adjusting assembly comprises an adjusting screw rod, a fixing nut, a connecting block, a sliding rail and a sliding block;
one end of the connecting block and the fixing nut are fixed on the side wall of the second fixing frame, the sliding rail is fixed on the side wall of the first fixing frame along the horizontal direction, the sliding block is arranged on the sliding rail in a sliding mode, and the sliding block is fixedly connected with the other end of the connecting block; adjusting screw rotate and install on the lateral wall of first mount, adjusting screw's top has the external screw thread, and adjusting screw's top and fixation nut looks adaptation.
7. The light-emitting angle adjusting structure of a three-optical-path 3D projection device according to claim 6, wherein: the lateral wall of the first fixing frame is provided with a fixing block protruding outwards, a bearing is installed on the fixing block, and the adjusting screw rod is fixed in a central hole of the bearing.
8. The light-emitting angle adjusting structure of a three-optical-path 3D projection device according to claim 5, wherein: the prism assembly consists of a light-in prism, a first refraction prism, a second refraction prism, a third refraction prism and a light-out prism;
the longitudinal section of the light incidence prism is an obtuse isosceles triangle, the structures of the first refraction prism and the second refraction prism are the same, the longitudinal section of the light incidence prism is an acute triangle, the longitudinal section of the third refraction prism is a right isosceles triangle, and the added angle of the obtuse angle of the light incidence prism, the right angle of the third refraction prism, one acute angle of the first refraction prism and one acute angle of the second refraction prism is 360 degrees;
in the longitudinal section of the third refraction prism, the plane where the bevel edge is located is a first plane, the light-emitting prism is provided with a second plane, and the second plane is tightly attached to the first plane of the third refraction prism.
9. The light-emitting angle adjusting structure of a three-optical-path 3D projection apparatus according to claim 1, wherein: the shell is provided with a front cover plate, and a first glass plate, a second glass plate and a third glass plate are sequentially arranged on the front cover plate corresponding to the first reflection assembly, the lens assembly and the second reflection assembly;
the third glass plate is in a vertical state, and the included angle between the extension lines of the first glass plate and the third glass plate and the included angle between the extension lines of the second glass plate and the third glass plate are acute angles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920885690.1U CN209979994U (en) | 2019-06-11 | 2019-06-11 | Light-emitting angle adjusting structure of three-optical-path 3D projection equipment |
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| CN201920885690.1U CN209979994U (en) | 2019-06-11 | 2019-06-11 | Light-emitting angle adjusting structure of three-optical-path 3D projection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856701A (en) * | 2020-07-20 | 2020-10-30 | 江苏普世祥光电技术有限公司 | Adjustable optical prism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856701A (en) * | 2020-07-20 | 2020-10-30 | 江苏普世祥光电技术有限公司 | Adjustable optical prism |
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