Bidirectional deflection positioning packaging structure of optical fiber scanner

Abstract

The utility model discloses an optical fiber scanner bidirectional deflection positioning packaging structure which comprises a shell, a base, a first adjusting block, a second adjusting block and an optical fiber scanner are sequentially arranged in the shell, the base is fixedly connected with the shell, and the rear end of the first adjusting block is connected with the base through a first elastic connecting piece. A first adjusting assembly for driving the first adjusting block to deflect in the left-right direction is arranged on the base; the rear end of the second adjusting block is connected with the first adjusting block through a second elastic connecting piece, and a second adjusting assembly for driving the second adjusting block to deflect in the pitching direction is arranged on the first adjusting block; the optical fiber scanner is fixedly connected with the second adjusting block. The packaging structure has the function of adjusting the deflection angle of the optical fiber scanner in a pitching mode, and the packaging difficulty and the adjusting difficulty are reduced; and the two adjusting parts for realizing horizontal deflection and pitching deflection are mutually independent and do not interfere with each other, so that the adjusting difficulty is further reduced.

Description

Technical Field

[0001] This application relates to the field of fiber optic scanning display device technology, and in particular to a bidirectional deflection positioning packaging structure for a fiber optic scanner. Background Technology

[0002] The imaging principle of fiber optic scanning projection technology is to use an actuator to drive the scanning fiber to move along a predetermined two-dimensional scanning trajectory, while simultaneously modulating the light output power of the light source, projecting each pixel of the image to be displayed onto the imaging area one by one, thus forming the projected image. To achieve good imaging results, the fiber optic scanner's fiber needs to have good coaxiality with the imaging lens.

[0003] Current fiber optic scanners are typically mounted either using connectors or adhesive. However, regardless of the mounting method, structural or manufacturing errors inevitably result in positional or angular deviations. These deviations affect the position of the light emitted from the fiber optic cable at the lens, leading to distortion, misalignment, and difficulty in focusing in the output image.

[0004] Meanwhile, fiber optic scanning devices are small in size, with the maximum diameter of their packaging shell typically ranging from a few centimeters to over ten centimeters. Setting up a structure that satisfies precise position adjustment within such a small packaged structure presents considerable technical challenges. Utility Model Content

[0005] This application provides a bidirectional deflection positioning packaging structure for a fiber optic scanner, which reduces assembly and adjustment difficulties while ensuring assembly accuracy.

[0006] To achieve the aforementioned objectives, this application provides a bidirectional deflection positioning packaging structure for a fiber optic scanner, comprising a housing, within which a base, a first adjusting block, a second adjusting block, and a fiber optic scanner are sequentially arranged from back to front. The base is fixedly connected to the housing.

[0007] The front side of the base is provided with a first mounting groove for accommodating the first adjusting block. The rear end of the first adjusting block is placed in the first mounting groove, and the rear end of the first adjusting block is connected to the base through a first elastic connector. The width of the first mounting groove allows the first adjusting block to deflect around the first elastic connector in the left and right directions. The base is provided with a first adjusting component for driving the first adjusting block to deflect in the left and right directions.

[0008] The front side of the first adjusting block is provided with a second mounting groove for accommodating the second adjusting block. The rear end of the second adjusting block is placed in the second mounting groove, and the rear end of the second adjusting block is connected to the first adjusting block through a second elastic connector. The width of the second mounting groove allows the second adjusting block to deflect around the second elastic connector in the pitch direction. The first adjusting block is provided with a second adjusting component that drives the second adjusting block to deflect in the pitch direction.

[0009] The fiber optic scanner is fixedly connected to the second adjustment block.

[0010] An optical lens is fixedly mounted at the front end of the housing. The first and second adjustment components ensure precise alignment between the fiber optic scanner and the optical lens.

[0011] Both the first and second elastic connectors are made of elastic materials with a certain deformation and recovery capabilities, such as plastic or metal parts.

[0012] Preferably, the first elastic connector only allows the first adjusting block to deflect in the left-right direction relative to the base, and restricts the relative displacement of other degrees of freedom between the two.

[0013] Preferably, the second elastic connector only allows the second adjusting block to deflect relative to the first adjusting block in the pitch direction, and restricts the relative displacement of the two in other degrees of freedom.

[0014] The first adjustment component can adjust the deflection angle of the first adjustment block in the left-right direction and fix the position of the first adjustment block. The second adjustment component can adjust the deflection angle of the second adjustment block in the pitch direction and fix the position of the second adjustment block.

[0015] Optionally, both the first elastic connector and the second elastic connector can be elastic connecting plates or elastic connecting ribs.

[0016] In some embodiments of this application, the first elastic connector is an elastic connecting plate that extends along a plane parallel to the front-back direction and perpendicular to the horizontal plane. There may be one or more elastic connecting plates.

[0017] In some embodiments of this application, the first elastic connector is a plurality of elastic connecting ribs arranged sequentially in a vertical direction, and the elastic connecting ribs extend in a front-back direction.

[0018] In some embodiments of this application, the second elastic connector is an elastic connecting plate that extends along a plane parallel to the horizontal plane. There may be one or more elastic connecting plates.

[0019] In some embodiments of this application, the second elastic connector is a plurality of elastic connecting ribs arranged sequentially in the horizontal direction, and the elastic connecting ribs extend in the front-back direction.

[0020] Optionally, the first adjusting component includes adjusting bolts disposed on the left and right sides of the first adjusting block. The wall of the first mounting groove has threaded through holes for installing the adjusting bolts. The adjusting bolts are installed in the corresponding threaded through holes, with their ends extending into the first mounting groove and pressing against the corresponding side of the first adjusting block. By adjusting the screw-in depth of the adjusting bolts on the left and right sides, the distance between the first adjusting block and the left and right walls of the first mounting groove can be adjusted. The deformation generated by the first elastic connector adjusts the horizontal deflection angle of the first adjusting block in the left and right directions.

[0021] Optionally, the second adjusting component includes adjusting bolts disposed on the upper and lower sides of the second adjusting block. The wall of the second mounting groove is provided with threaded through holes for installing the adjusting bolts. The adjusting bolts are installed in the corresponding threaded through holes, with their ends extending into the second mounting groove and pressing against the corresponding side of the second adjusting block. By adjusting the screw-in depth of the upper and lower adjusting bolts, the distance between the second adjusting block and the upper and lower walls of the second mounting groove can be adjusted. The deformation generated by the second elastic connector adjusts the horizontal deflection angle of the second adjusting block.

[0022] Optionally, the first adjusting component includes adjusting bolts located on the left and right sides of the first adjusting block. The left and right sides of the first adjusting block each have threaded holes that mate with the corresponding adjusting bolts. The wall of the first mounting groove has mounting holes for installing the adjusting bolts, which penetrate the groove wall. The adjusting bolts are installed in the mounting holes on the corresponding sides, with their ends extending into the housing and threadedly connected to the corresponding threaded holes on the first adjusting block. The diameter of the mounting holes is larger than the outer diameter of the adjusting bolt's screw, providing the required displacement clearance for the adjusting bolts in the front-rear direction during the deflection of the first adjusting block. By adjusting the screw-in depth of the adjusting bolts on the left and right sides, the distance between the first adjusting block and the left and right walls of the first mounting groove can be adjusted. The deformation generated by the first elastic connector adjusts the deflection angle of the first adjusting block in the horizontal left-right direction.

[0023] Optionally, the second adjusting component includes adjusting bolts located on the upper and lower sides of the second adjusting block. The upper and lower sides of the second adjusting block each have threaded holes that mate with the corresponding adjusting bolts. The wall of the second mounting groove has mounting holes for installing the adjusting bolts, which penetrate the groove wall. The adjusting bolts are installed in the mounting holes on the corresponding sides, with their ends extending into the housing and threadedly connected to the corresponding threaded holes on the second adjusting block. The diameter of the mounting holes is larger than the outer diameter of the adjusting bolt's thread to provide the required displacement clearance for the adjusting bolts in the front-rear direction during the deflection of the second adjusting block. By adjusting the screw-in depth of the upper and lower adjusting bolts, the distance between the second adjusting block and the upper and lower walls of the second mounting groove can be adjusted. The deformation generated by the second elastic connector adjusts the deflection angle of the second adjusting block in the horizontal vertical direction.

[0024] One or more technical solutions in this application have at least the following technical effects or advantages:

[0025] This application enables the packaging structure to horizontally adjust the deflection angle of the fiber optic scanner via a first elastic connector and a first adjustment component, and to tilt and adjust the deflection angle of the fiber optic scanner via a second elastic connector and a second adjustment component. The base used to fix the fiber optic scanner to the housing does not participate in the aforementioned deflection angle adjustment function of the fiber optic scanner, allowing fixed packaging and angle adjustment to be achieved by different components of the packaging structure, thus reducing both packaging and adjustment complexity.

[0026] In this application, the two adjustment sections for adjusting the horizontal deflection angle of the fiber optic scanner and the vertical deflection angle of the fiber optic scanner are independent of each other and do not interfere with each other, further reducing the adjustment difficulty. Both the first and second adjustment components are located inside the housing, which does not affect the structural integrity of the housing and provides a structural basis for the sealed encapsulation of the housing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure after the shell has been removed;

[0029] Figure 3 This is a top view of the structure after the shell has been removed. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] like Figures 1-3 As shown, this application provides a bidirectional deflection positioning packaging structure for a fiber optic scanner 300, including a housing 100. Inside the housing 100, a base 201, a first adjusting block 202, a second adjusting block 203, and a fiber optic scanner 300 are sequentially arranged in a back-to-forehead direction. The base 201 is fixedly connected to the housing 100.

[0032] The base 201 has a first mounting groove 2011 on its front side to accommodate the first adjusting block 202. The rear end of the first adjusting block 202 is placed in the first mounting groove 2011, and the rear end of the first adjusting block 202 is connected to the base 201 through the first elastic connector 204. The groove width of the first mounting groove 2011 allows the first adjusting block 202 to deflect around the first elastic connector 204 in the left and right direction. The base 201 is provided with a first adjusting component to drive the first adjusting block 202 to deflect in the left and right direction.

[0033] The front side of the first adjusting block 202 is provided with a second mounting groove 2021 for accommodating the second adjusting block 203. The rear end of the second adjusting block 203 is placed in the second mounting groove 2021, and the rear end of the second adjusting block 203 is connected to the first adjusting block 202 through the second elastic connector 205. The groove width of the second mounting groove 2021 allows the second adjusting block 203 to deflect around the second elastic connector 205 in the pitch direction. The first adjusting block 202 is provided with a second adjusting component for driving the second adjusting block 203 to deflect in the pitch direction.

[0034] The fiber optic scanner 300 is fixedly connected to the second adjustment block 203.

[0035] This application enables the encapsulation structure to horizontally adjust the deflection angle of the fiber optic scanner 300 via a first elastic connector 204 and a first adjustment component, and enables the encapsulation structure to pitch adjust the deflection angle of the fiber optic scanner 300 via a second elastic connector 205 and a second adjustment component. The base 201, which is used to fix the fiber optic scanner 300 to the housing 100, does not participate in the aforementioned deflection angle adjustment function of the fiber optic scanner 300. This allows fixed encapsulation and angle adjustment to be achieved by different components of the encapsulation structure, thereby reducing both encapsulation and adjustment complexity.

[0036] In this application, the two adjustment parts for adjusting the deflection angle of the horizontal fiber optic scanner 300 and the two parts for adjusting the deflection angle of the vertical fiber optic scanner 300 are independent of each other and do not interfere with each other, further reducing the difficulty of adjustment. Both the first adjustment component and the second adjustment component are located inside the housing 100, which does not affect the structural integrity of the housing 100 and provides a structural basis for the sealed encapsulation of the housing 100.

[0037] An optical lens 400 is fixedly mounted on the front end of the housing 100. The first and second adjustment components ensure precise alignment between the fiber optic scanner 300 and the optical lens 400.

[0038] The first elastic connector 204 and the second elastic connector 205 are both elastic material parts with a certain deformation and recovery ability, such as plastic parts or metal parts.

[0039] Preferably, the first elastic connector 204 only allows the first adjusting block 202 to deflect relative to the base 201 in the left-right direction, and restricts the relative displacement of other degrees of freedom between the two.

[0040] Preferably, the second elastic connector 205 only allows the second adjusting block 203 to deflect relative to the first adjusting block 202 in the pitch direction, and restricts the relative displacement of other degrees of freedom between the two.

[0041] The first adjustment component can adjust the deflection angle of the first adjustment block 202 in the left-right direction and fix the position of the first adjustment block 202. The second adjustment component can adjust the deflection angle of the second adjustment block 203 in the pitch direction and fix the position of the second adjustment block 203.

[0042] Optionally, both the first elastic connector 204 and the second elastic connector 205 can be elastic connecting plates or elastic connecting ribs.

[0043] In some embodiments of this application, the first elastic connector 204 is an elastic connecting plate that extends along a plane parallel to the front-back direction and perpendicular to the horizontal plane. There may be one or more elastic connecting plates.

[0044] In some embodiments of this application, the first elastic connector 204 is a plurality of elastic connecting ribs arranged sequentially in a vertical direction, and the elastic connecting ribs extend in a front-back direction.

[0045] In some embodiments of this application, the second elastic connector 205 is an elastic connecting plate that extends along a plane parallel to the horizontal plane. There may be one or more elastic connecting plates.

[0046] In some embodiments of this application, the second elastic connector 205 is a plurality of elastic connecting ribs arranged sequentially in the horizontal direction, and the elastic connecting ribs extend in the front-back direction.

[0047] Optionally, the first adjustment component includes adjusting bolts 501 disposed on the left and right sides of the first adjustment block 202. The groove wall of the first mounting groove 2011 is provided with threaded through holes for installing the adjusting bolts 501. The adjusting bolts 501 are installed in the corresponding threaded through holes, with their ends extending into the first mounting groove 2011 and pressing against the corresponding side of the first adjustment block 202. By adjusting the screw-in depth of the adjusting bolts 501 on the left and right sides, the distance between the first adjustment block 202 and the left and right sides of the first mounting groove 2011 can be adjusted. The deformation generated by the first elastic connector 204 adjusts the deflection angle of the first adjustment block 202 in the horizontal left and right directions.

[0048] Optionally, the second adjustment component includes adjusting bolts 502 disposed on the upper and lower sides of the second adjustment block 203. The groove wall of the second mounting groove 2021 is provided with threaded through holes for installing the adjusting bolts 502. The adjusting bolts 502 are installed in the corresponding threaded through holes, with their ends extending into the second mounting groove 2021 and pressing against the corresponding side of the second adjustment block 203. By adjusting the screw-in depth of the adjusting bolts 502 on the upper and lower sides, the distance between the second adjustment block 203 and the upper and lower sides of the second mounting groove 2021 can be adjusted. The deformation generated by the second elastic connector 205 adjusts the deflection angle of the second adjustment block 203 in the horizontal vertical direction.

[0049] Alternatively, the first adjustment component includes adjustment bolts 501 disposed on the left and right sides of the first adjustment block 202. The left and right sides of the first adjustment block 202 are respectively provided with threaded holes that mate with the adjustment bolts 501 on the corresponding sides. The groove wall of the first mounting groove 2011 is provided with mounting holes for installing the adjustment bolts 501. The mounting holes penetrate the groove wall of the first mounting groove 2011. The adjustment bolts 501 are installed in the mounting holes on the corresponding sides, and their ends extend into the housing 100 and are connected to the threaded holes on the corresponding sides of the first adjustment block 202 by threads. The diameter of the mounting hole is larger than the outer diameter of the screw of the adjustment bolt 501, so as to provide the required displacement clearance of the adjustment bolts 501 in the front-back direction during the deflection of the first adjustment block 202. By adjusting the screw-in depth of the left and right adjusting bolts 501, the distance between the first adjusting block 202 and the left and right walls of the first mounting groove 2011 can be adjusted. The deformation generated by the first elastic connector 204 can adjust the deflection angle of the first adjusting block 202 in the horizontal left and right directions.

[0050] Alternatively, the second adjustment component includes adjusting bolts 502 disposed on the upper and lower sides of the second adjustment block 203. The upper and lower sides of the second adjustment block 203 are respectively provided with threaded holes that mate with the adjusting bolts 502 on the corresponding sides. The groove wall of the second mounting groove 2021 is provided with mounting holes for installing the adjusting bolts 502. The mounting holes penetrate the groove wall of the second mounting groove 2021. The adjusting bolts 502 are installed in the mounting holes on the corresponding sides, and their ends extend into the housing 100 and are threadedly connected to the threaded holes on the corresponding sides of the second adjustment block 203. The diameter of the mounting holes is larger than the outer diameter of the screw of the adjusting bolts 502 to provide the required displacement clearance of the adjusting bolts 502 in the front-back direction during the deflection of the second adjustment block 203. By adjusting the screwing depth of the upper and lower adjusting bolts 502, the distance between the second adjusting block 203 and the upper wall of the second mounting groove 2021 and the lower wall of the second mounting groove 2021 can be adjusted. The deflection angle of the second adjusting block 203 in the horizontal and vertical directions can be adjusted by the deformation generated by the second elastic connector 205.

[0051] It should be noted that the above embodiments are illustrative of this application and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The words “comprising” or “including” do not exclude the presence of elements or steps not listed in the claims. The words “a” or “an” preceding an element do not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc., does not indicate any order and these words can be interpreted as names.

[0052] All features disclosed in this specification, except for mutually exclusive features, can be combined in any way.

[0053] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0054] This application is not limited to the specific embodiments described above. This application extends to any new features or combinations disclosed in this specification, as well as any new steps or combinations of any new methods or processes disclosed.

Claims

1. A bidirectional deflection positioning packaging structure for an optical fiber scanner, characterized in that, The device includes a housing, inside which, in a back-to-forehead direction, are arranged a base, a first adjusting block, a second adjusting block, and a fiber optic scanner. The base is fixedly connected to the housing. The front side of the base is provided with a first mounting groove for accommodating the first adjusting block. The rear end of the first adjusting block is placed in the first mounting groove, and the rear end of the first adjusting block is connected to the base through a first elastic connector. The width of the first mounting groove allows the first adjusting block to deflect around the first elastic connector in the left and right directions. The base is provided with a first adjusting component for driving the first adjusting block to deflect in the left and right directions. The front side of the first adjusting block is provided with a second mounting groove for accommodating the second adjusting block. The rear end of the second adjusting block is placed in the second mounting groove, and the rear end of the second adjusting block is connected to the first adjusting block through a second elastic connector. The width of the second mounting groove allows the second adjusting block to deflect around the second elastic connector in the pitch direction. The first adjusting block is provided with a second adjusting component that drives the second adjusting block to deflect in the pitch direction. The fiber optic scanner is fixedly connected to the second adjustment block.

2. The fiber optic scanner bidirectional deflection positioning packaging structure as described in claim 1, characterized in that, An optical lens is fixedly mounted on the front end of the housing.

3. The fiber optic scanner bidirectional deflection positioning packaging structure as described in claim 1 or 2, characterized in that, The first elastic connector is an elastic connecting plate, which extends along a plane parallel to the front-back direction and perpendicular to the horizontal plane.

4. The fiber optic scanner bidirectional deflection positioning packaging structure as described in claim 1 or 2, characterized in that, The first elastic connector is a plurality of elastic connecting ribs arranged sequentially in a vertical direction, and the elastic connecting ribs extend in the front-back direction.

5. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The second elastic connector is an elastic connecting plate that extends along a plane parallel to the horizontal plane.

6. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The second elastic connector is a plurality of elastic connecting ribs arranged sequentially in the horizontal direction, and the elastic connecting ribs extend in the front-back direction.

7. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The first adjustment component includes adjustment bolts disposed on the left and right sides of the first adjustment block. The groove wall of the first mounting groove is provided with threaded through holes for installing the adjustment bolts. The adjustment bolts are installed in the corresponding threaded through holes, and their ends extend into the first mounting groove and press against the corresponding side of the first adjustment block.

8. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The second adjustment component includes adjustment bolts disposed on the upper and lower sides of the second adjustment block. The groove wall of the second mounting groove is provided with threaded through holes for installing the adjustment bolts. The adjustment bolts are installed in the corresponding threaded through holes, and their ends extend into the second mounting groove and press against the corresponding side of the second adjustment block.

9. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The first adjustment component includes adjustment bolts disposed on the left and right sides of the first adjustment block. The left and right sides of the first adjustment block are respectively provided with threaded holes that mate with the adjustment bolts on the corresponding sides. The groove wall of the first mounting groove is provided with mounting holes for installing the adjustment bolts. The mounting holes penetrate the groove wall of the first mounting groove. The adjustment bolts are installed in the mounting holes on the corresponding sides, and their ends extend into the housing and are threadedly connected to the threaded holes on the corresponding sides of the first adjustment block. The diameter of the mounting holes is larger than the outer diameter of the bolt screw to provide the required displacement clearance of the adjustment bolts in the front-back direction during the deflection of the first adjustment block.

10. A bidirectional deflection positioning packaging structure for an optical fiber scanner as described in claim 1 or 2, characterized in that, The second adjustment component includes adjustment bolts located on the upper and lower sides of the second adjustment block. The upper and lower sides of the second adjustment block are respectively provided with threaded holes that mate with the adjustment bolts on the corresponding sides. The groove wall of the second mounting groove is provided with mounting holes for installing the adjustment bolts. The mounting holes penetrate the groove wall of the second mounting groove. The adjustment bolts are installed in the mounting holes on the corresponding sides, and their ends extend into the housing and are connected to the threaded holes on the corresponding sides of the second adjustment block by threads. The diameter of the mounting holes is larger than the outer diameter of the screw of the adjustment bolt to provide the required displacement clearance of the adjustment bolts in the front-back direction during the deflection of the second adjustment block.

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