CN220961915U - Diffraction grating waveguide element - Google Patents
Diffraction grating waveguide element Download PDFInfo
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- CN220961915U CN220961915U CN202322645147.3U CN202322645147U CN220961915U CN 220961915 U CN220961915 U CN 220961915U CN 202322645147 U CN202322645147 U CN 202322645147U CN 220961915 U CN220961915 U CN 220961915U
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- waveguide element
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims 3
- 238000010276 construction Methods 0.000 claims 1
- 230000005012 migration Effects 0.000 claims 1
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- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
The utility model discloses a diffraction grating waveguide element, which comprises a diffraction grating waveguide element main body, wherein the diffraction grating waveguide element main body is arranged on a horizontal movement adjusting frame, the horizontal movement adjusting frame consists of a horizontal adjusting frame, an element mounting frame, a first screw rod, a toothed belt and a second screw rod, the horizontal adjusting frame is of a rectangular frame structure, the top and the bottom of the horizontal adjusting frame are respectively arranged on the first screw rod and the second screw rod, one end of the first screw rod and one end of the second screw rod are respectively fixed with a toothed belt wheel matched with the toothed belt, the first screw rod and the second screw rod are in transmission connection through the toothed belt, and one end of the first screw rod is fixed with a first knob; the diffraction grating waveguide element main body is arranged on the element mounting frame on the horizontal movement adjusting frame, and the screw rod I and the screw rod II can be driven to rotate simultaneously by screwing the knob I, so that the diffraction grating waveguide element main body on the element mounting frame is driven to move leftwards or rightwards.
Description
Technical Field
The utility model relates to the technical field of grating waveguide elements, in particular to a diffraction grating waveguide element.
Background
As virtual reality and augmented reality technologies are increasingly recognized and accepted, near-eye display devices have rapidly evolved. In the near-eye display device, the grating waveguide display technology utilizes a diffraction grating to realize incidence, turning and emergence of light rays, utilizes the principle of total reflection to realize light ray transmission, and transmits an image of a micro display to human eyes so as to see a virtual image. The grating waveguide technology has the advantages of good perspective effect, light weight, low mass production cost and the like, and is considered as the development direction of the AR near-to-eye display technology.
The conventional diffraction grating waveguide element has a problem that the display effect cannot reach the optimal standard due to slight difference of fixed positions after being installed in place, so that additional adjustment is required.
Disclosure of utility model
The present utility model aims to provide a diffraction grating waveguide element to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the diffraction grating waveguide element comprises a diffraction grating waveguide element body, wherein the diffraction grating waveguide element body is arranged on a horizontal movement adjusting frame, the horizontal movement adjusting frame is composed of a horizontal adjusting frame, an element mounting frame, a first screw rod, a first toothed belt and a second screw rod, the horizontal adjusting frame is of a rectangular frame structure, the top and the bottom of the horizontal adjusting frame are respectively arranged on the first screw rod and the second screw rod, one end of the first screw rod and one end of the second screw rod are respectively fixed with a toothed belt wheel matched with the first toothed belt, the first screw rod and the second screw rod are in transmission connection through the first toothed belt, one end of the first screw rod is fixed with a first knob, one element mounting frame is respectively arranged on the first screw rod and the second screw rod, and the diffraction grating waveguide element body is arranged between the two element mounting frames.
Preferably, the back of the horizontal movement adjusting frame is provided with a vertical movement adjusting frame, the vertical movement adjusting frame is composed of a vertical adjusting frame, a screw rod III, a screw rod IV and a toothed belt II, the vertical adjusting frame is of a rectangular frame structure, the screw rod III and the screw rod IV are respectively arranged on two sides of the front face of the vertical adjusting frame, the top of the screw rod III and the top of the screw rod IV are respectively fixed with a toothed belt wheel matched with the toothed belt II, the screw rod III and the screw rod IV are in transmission connection through the toothed belt II, the top end part of the screw rod III is fixedly provided with a knob II, and the back of the horizontal adjusting frame is fixedly provided with travel sliding blocks matched with the screw rod III and the screw rod IV.
Preferably, the front side of the element mounting frame is provided with a limiting plate, the limiting plate and the element mounting frame are of an integrated structure, and a groove for inserting the diffraction grating waveguide element main body is formed between the limiting plate and the element mounting frame.
Preferably, a positioning strip horizontally arranged is respectively fixed above the front face and below the front face of the horizontal adjusting frame, and a positioning chute matched with the positioning strip is formed in the inner side of the element mounting frame.
Compared with the prior art, the utility model has the beneficial effects that: the diffraction grating waveguide element main body is arranged on the element mounting frame on the horizontal movement adjusting frame, and the screw rod I and the screw rod II can be driven to rotate simultaneously by screwing the knob I, so that the diffraction grating waveguide element main body on the element mounting frame is driven to move leftwards or rightwards;
The back of the horizontal movement adjusting frame is provided with the vertical movement adjusting frame, and the screw rod III and the screw rod IV can be driven to rotate simultaneously by screwing the knob II, so that the diffraction grating waveguide element main body arranged on the horizontal movement adjusting frame is driven to move upwards or downwards;
The diffraction grating waveguide element main body is arranged on the element mounting frame in a clamping manner, so that the assembly and disassembly are convenient;
Through the cooperation of location strip and location spout, can make the component mounting bracket steadily remove on the horizontal adjustment frame.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a combination structure of a diffraction grating waveguide element body and a horizontally movable adjustment frame of the present utility model;
FIG. 2 is a schematic view of the combined front surface of the diffraction grating waveguide element body, the horizontal movement adjusting frame and the vertical movement adjusting frame of the present utility model;
Fig. 3 is a schematic diagram showing the structure of the coupling back surface of the diffraction grating waveguide element body, the horizontal movement adjusting frame, and the vertical movement adjusting frame according to the present utility model.
In the figure: 1. a horizontal adjusting frame; 2. a positioning strip; 3. a component mounting rack; 4. a first screw rod; 5. a second screw rod; 6. toothed belt one; 7. a first knob; 8. a diffraction grating waveguide element body; 9. a limiting plate; 10. a groove; 11. positioning a chute; 12. a vertical adjusting frame; 13. a screw rod III; 14. a screw rod IV; 15. toothed belt II; 16. a second knob; 17. and a stroke sliding block.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in an embodiment of the present utility model, a diffraction grating waveguide element includes a diffraction grating waveguide element body 8, the diffraction grating waveguide element body 8 is mounted on a horizontal movement adjusting frame, the horizontal movement adjusting frame is composed of a horizontal adjusting frame 1, an element mounting frame 3, a first screw rod 4, a toothed belt 6 and a second screw rod 5, the horizontal adjusting frame 1 is in a rectangular frame structure, the first screw rod 4 and the second screw rod 5 are respectively mounted on the top and bottom of the horizontal adjusting frame 1, one end of the first screw rod 4 and one end of the second screw rod 5 are respectively fixed with a toothed belt wheel matched with the toothed belt 6, the first screw rod 4 and the second screw rod 5 are in transmission connection through the toothed belt 6, one end of the first screw rod 4 is fixed with a knob 7, one element mounting frame 3 is respectively mounted on the first screw rod 4 and the second screw rod 5, and the diffraction grating waveguide element body 8 is mounted between the two element mounting frames 3.
The back of the horizontal movement adjusting frame is provided with a vertical movement adjusting frame, the vertical movement adjusting frame is composed of a vertical adjusting frame 12, a screw rod III 13, a screw rod IV 14 and a toothed belt II 15, the vertical adjusting frame 12 is of a rectangular frame structure, the screw rod III 13 and the screw rod IV 14 are respectively arranged on two sides of the front face of the vertical adjusting frame 12, the top of the screw rod III 13 and the top of the screw rod IV 14 are respectively fixed with a toothed belt wheel matched with the toothed belt II 15, the screw rod III 13 and the screw rod IV 14 are in transmission connection through the toothed belt II 15, the top end part of the screw rod III 13 is fixed with a knob II 16, and the back of the horizontal adjusting frame 1 is fixedly provided with a travel sliding block 17 matched with the screw rod III 13 and the screw rod IV 14.
The front side of the element mounting frame 3 is provided with a limiting plate 9, the limiting plate 9 and the element mounting frame 3 are of an integrated structure, and a groove 10 for inserting the diffraction grating waveguide element main body 8 is arranged between the limiting plate 9 and the element mounting frame 3.
The upper part and the lower part of the front face of the horizontal adjusting frame 1 are respectively fixed with a positioning strip 2 which is horizontally arranged, and the inner side of the element mounting frame 3 is provided with a positioning chute 11 which is matched with the positioning strip 2.
The working principle of the utility model is as follows: the diffraction grating waveguide element main body 8 is arranged on the element mounting frame 3 on the horizontal movement adjusting frame, and the screw rod I4 and the screw rod II 5 can be driven to rotate simultaneously by screwing the knob I7, so that the diffraction grating waveguide element main body 8 on the element mounting frame 3 is driven to move leftwards or rightwards;
The back of the horizontal movement adjusting frame is provided with the vertical movement adjusting frame, and the screw rod III 13 and the screw rod IV 14 can be driven to rotate simultaneously by screwing the knob II 16, so that the diffraction grating waveguide element main body 8 arranged on the horizontal movement adjusting frame is driven to move upwards or downwards;
The diffraction grating waveguide element main body 8 is arranged on the element mounting frame 3 in a clamping manner, so that the assembly and disassembly are convenient;
by the cooperation of the positioning strips 2 and the positioning sliding grooves 11, the element mounting frame 3 can be stably moved on the horizontal adjusting frame 1.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A diffraction grating waveguide element comprising a diffraction grating waveguide element body (8), characterized in that: the diffraction grating waveguide element main body (8) is installed on a horizontal movement adjusting frame, the horizontal movement adjusting frame is composed of a horizontal adjusting frame (1), an element installation frame (3), a first screw rod (4), a first toothed belt (6) and a second screw rod (5), the horizontal adjusting frame (1) is of a rectangular frame structure, the first screw rod (4) and the second screw rod (5) are respectively installed at the top and the bottom of the horizontal adjusting frame (1), one end of the first screw rod (4) and one end of the second screw rod (5) are respectively fixed with a toothed belt wheel matched with the first toothed belt (6), the first screw rod (4) and the second screw rod (5) are in transmission connection through the first toothed belt (6), one end part of the first screw rod (4) is fixed with a first knob (7), one installation frame element (3) is respectively installed on the first screw rod (4) and the second screw rod (5), and the diffraction grating waveguide element main body (8) is installed between the two installation frames (3).
2. A diffraction grating waveguide element as claimed in claim 1, wherein: the back of horizontal migration alignment jig is installed perpendicularly and is removed the alignment jig, it comprises perpendicular alignment jig (12), lead screw three (13), lead screw four (14) and tooth area two (15), perpendicular alignment jig (12) are rectangle frame construction, lead screw three (13) and lead screw four (14) are installed respectively in the front both sides of perpendicular alignment jig (12), and the top of lead screw three (13) and lead screw four (14) respectively be fixed with one with tooth area two (15) complex tooth band pulley, be connected through tooth area two (15) transmission between lead screw three (13) and lead screw four (14), the top tip of lead screw three (13) is fixed with knob two (16), the back of horizontal alignment jig (1) is fixed and is provided with lead screw three (13), lead screw four (14) complex stroke slider (17).
3. A diffraction grating waveguide element as claimed in claim 1, wherein: the front side of the element mounting frame (3) is provided with a limiting plate (9), the limiting plate (9) and the element mounting frame (3) are of an integrated structure, and a groove (10) for inserting the diffraction grating waveguide element main body (8) is formed between the limiting plate (9) and the element mounting frame (3).
4. A diffraction grating waveguide element as claimed in claim 1, wherein: the device is characterized in that positioning strips (2) horizontally arranged are respectively fixed above the front face and below the front face of the horizontal adjusting frame (1), and positioning sliding grooves (11) matched with the positioning strips (2) are formed in the inner side of the element mounting frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322645147.3U CN220961915U (en) | 2023-09-28 | 2023-09-28 | Diffraction grating waveguide element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322645147.3U CN220961915U (en) | 2023-09-28 | 2023-09-28 | Diffraction grating waveguide element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961915U true CN220961915U (en) | 2024-05-14 |
Family
ID=91021906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322645147.3U Active CN220961915U (en) | 2023-09-28 | 2023-09-28 | Diffraction grating waveguide element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961915U (en) |
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2023
- 2023-09-28 CN CN202322645147.3U patent/CN220961915U/en active Active
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