Optical fiber scanner packaging structure

Abstract

The utility model discloses an optical fiber scanner packaging structure which comprises a shell, a base, a first adjusting block, a second adjusting block and an optical fiber scanner are arranged in the shell, the base is fixedly connected with the shell, the first adjusting block is connected with the base through a first elastic connecting piece, and the second adjusting block is connected with the first adjusting block through a second elastic connecting piece. The optical fiber scanner is fixedly connected with the second adjusting block, and the shell is provided with a first adjusting assembly for driving the first adjusting block to deflect in the left-right direction and a second adjusting assembly for driving the second adjusting block to deflect in the pitching direction; the optical fiber scanner is fixedly connected with the second adjusting block. The optical fiber scanner has a function of horizontally adjusting the deflection angle of the optical fiber scanner through the first elastic connecting piece and the first adjusting assembly, and has a function of adjusting the deflection angle of the optical fiber scanner in a pitching manner through the second elastic connecting piece and the second adjusting assembly; fixed packaging and angle adjustment are achieved through different assemblies, and meanwhile the packaging difficulty and the adjusting difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber scanning display devices, and particularly relates to a packaging structure of an optical fiber scanner. BACKGROUND

[0002] The imaging principle of the optical fiber scanning projection technology is that an actuator drives a scanning optical fiber to move along a predetermined two-dimensional scanning track, and meanwhile, the light power of a light source is modulated, so that each pixel point information of a to-be-displayed image is projected onto an imaging area one by one, thereby forming a projection picture. In order to achieve a good imaging effect, the optical fiber of the optical fiber scanner needs to have good coaxiality with an imaging lens.

[0003] The packaging of the existing optical fiber scanner is to realize the fixed installation of the optical fiber scanner through a connecting piece or to realize the fixed installation through solidified glue. However, no matter which fixing mode is used, due to structural or workmanship errors, there will inevitably be a deviation in position or angle, which affects the position of the optical fiber exit light irradiated on the lens, and causes the corresponding exit image to have phenomena such as distortion, eccentricity and difficulty in focusing.

[0004] Meanwhile, the optical fiber scanning device has a small volume, and the maximum diameter of the packaging shell is generally several centimeters to tens of centimeters. It is quite difficult to set a structure meeting the position accurate adjustment function on such a small packaging structure. CONTENT OF THE INVENTION

[0005] The embodiment of the present application provides a packaging structure of an optical fiber scanner, which reduces the assembly and adjustment difficulties under the premise of ensuring assembly precision.

[0006] In order to achieve the above application purpose, the present application provides a packaging structure of an optical fiber scanner, which comprises a shell, a base, a first adjusting block, a second adjusting block and an optical fiber scanner arranged in the shell in sequence from back to front,

[0007] The base is fixedly connected with the shell, the first adjusting block is connected with the base through a first elastic connecting piece, the second adjusting block is connected with the first adjusting block through a second elastic connecting piece, and the optical fiber scanner is fixedly connected with the second adjusting block,

[0008] The shell is provided with a first adjusting assembly for driving the first adjusting block to deflect in the left-right direction and a second adjusting assembly for driving the second adjusting block to deflect in the pitch direction.

[0009] The optical fiber scanner is fixedly connected with the second adjusting block.

[0010] The front end of the shell is fixedly installed with an optical lens. Through the first adjusting assembly and the second adjusting assembly, the accurate centering of the optical fiber scanner and the optical lens can be ensured.

[0011] The first and second elastic connecting members are elastic material members with certain deformation and recovery capabilities, such as plastic members or metal members.

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

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

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

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

[0016] In some embodiments of the present application, the first elastic connecting member is an elastic connecting plate extending along a plane parallel to the front-rear direction and perpendicular to the horizontal plane. The number of elastic connecting plates can be one or more.

[0017] In some embodiments of the present application, the first elastic connecting member is a plurality of elastic connecting ribs arranged in sequence in the vertical direction, the elastic connecting ribs extending in the front-rear direction.

[0018] In some embodiments of the present application, the second elastic connecting member is an elastic connecting plate extending along a plane parallel to the horizontal plane. The number of elastic connecting plates can be one or more.

[0019] In some embodiments of the present application, the second elastic connecting member is a plurality of elastic connecting ribs arranged in sequence in the horizontal direction, the elastic connecting ribs extending in the front-rear direction.

[0020] Specifically, the first adjusting assembly includes adjusting bolts arranged on the left and right sides of the first adjusting block, the housing is provided with threaded through holes for mounting the adjusting bolts, the adjusting bolts are mounted in the corresponding threaded through holes through threaded cooperation, and the ends of the adjusting bolts extend into the housing and abut against the corresponding side surfaces of the first adjusting block. By adjusting the screwing depth of the adjusting bolts on the left and right sides, the distance of the first adjusting block from the left side of the housing and the distance of the first adjusting block from the right side of the housing can be adjusted, and the deflection angle of the first adjusting block in the horizontal left-right direction can be adjusted through the deformation of the first elastic connecting member.

[0021] Specifically, the second adjusting assembly comprises adjusting bolts arranged on the upper and lower sides of the second adjusting block. Threaded holes are arranged on the shell for mounting the adjusting bolts. The adjusting bolts are mounted in the corresponding threaded holes by threaded cooperation, and the ends of the adjusting bolts extend into the shell and abut against the corresponding side of the second adjusting block. By adjusting the screwing depth of the adjusting bolts on the upper and lower sides, the distance between the second adjusting block and the upper side of the shell and the distance between the second adjusting block and the lower side of the shell can be adjusted. By the deformation of the second elastic connecting element, the pitch deflection angle of the second adjusting block in the up-down direction can be adjusted.

[0022] Alternatively, the first adjusting assembly comprises adjusting bolts arranged on the left and right sides of the first adjusting block. The left and right sides of the first adjusting block are respectively provided with threaded holes matched with the adjusting bolts on the corresponding side. Mounting holes are arranged on the shell for mounting the adjusting bolts. The mounting holes pass through the side wall of the shell. The adjusting bolts are mounted in the corresponding mounting holes. The ends of the adjusting bolts extend into the shell and are connected with the threaded holes on the corresponding side of the first adjusting block by threaded cooperation. The hole diameter of the mounting hole is larger than the outer diameter of the screw rod of the adjusting bolt, so as to provide a displacement gap required for the adjusting bolt in the front-back direction during the deflection of the first adjusting block. By adjusting the screwing depth of the adjusting bolts on the left and right sides, the distance between the first adjusting block and the left side of the shell and the distance between the first adjusting block and the right side of the shell can be adjusted. By the deformation of the first elastic connecting element, the deflection angle of the first adjusting block in the horizontal left-right direction can be adjusted.

[0023] Alternatively, the second adjusting assembly comprises adjusting bolts arranged on the upper and lower sides of the second adjusting block. The upper and lower sides of the second adjusting block are respectively provided with threaded holes matched with the adjusting bolts on the corresponding side. Mounting holes are arranged on the shell for mounting the adjusting bolts. The mounting holes pass through the side wall of the shell. The adjusting bolts are mounted in the corresponding mounting holes. The ends of the adjusting bolts extend into the shell and are connected with the threaded holes on the corresponding side of the second adjusting block by threaded cooperation. The hole diameter of the mounting hole is larger than the outer diameter of the screw rod of the adjusting bolt, so as to provide a displacement gap required for the adjusting bolt in the front-back direction during the deflection of the first adjusting block. By adjusting the screwing depth of the adjusting bolts on the upper and lower sides, the distance between the second adjusting block and the upper side of the shell and the distance between the second adjusting block and the lower side of the shell can be adjusted. By the deformation of the second elastic connecting element, the pitch deflection angle of the second adjusting block in the up-down direction can be adjusted.

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

[0025] The first elastic connecting piece and the first adjusting assembly enable the packaging structure to horizontally adjust the deflection angle of the optical fiber scanner, and the second elastic connecting piece and the second adjusting assembly enable the packaging structure to vertically adjust the deflection angle of the optical fiber scanner. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram after removing the shell and the optical lens. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] As shown in Figure 1 , Figure 2 The present application provides an optical fiber scanner packaging structure, which comprises a shell 100, the shell 100 is sequentially provided with a base 201, a first adjusting block 202, a second adjusting block 203 and an optical fiber scanner 300 in the direction from back to front,

[0030] The base 201 is fixedly connected with the shell 100, the first adjusting block 202 is connected with the base 201 through a first elastic connecting piece 204, the second adjusting block 203 is connected with the first adjusting block 202 through a second elastic connecting piece 205, and the optical fiber scanner 300 is fixedly connected with the second adjusting block 203,

[0031] The shell 100 is provided with a first adjusting assembly for driving the first adjusting block 202 to deflect in the left-right direction and a second adjusting assembly for driving the second adjusting block 203 to deflect in the pitch direction.

[0032] The optical fiber scanner 300 is fixedly connected with the second adjusting block 203.

[0033] The first elastic connecting member 204 and the first adjusting assembly enable the packaging structure to horizontally adjust the deflection angle of the optical fiber scanner 300, and the second elastic connecting member 205 and the second adjusting assembly enable the packaging structure to vertically adjust the deflection angle of the optical fiber scanner 300. The base 201 for realizing the fixed connection structure of the optical fiber scanner 300 and the shell 100 does not participate in the realization of the above-mentioned deflection angle functions of the optical fiber scanner 300, so that the fixing and angle adjustment are realized by different components of the packaging structure, and the packaging difficulty and the adjustment difficulty are reduced.

[0034] The front end of the shell 100 is fixedly installed with an optical lens. The first adjusting assembly and the second adjusting assembly can ensure the accurate centering of the optical fiber scanner 300 and the optical lens.

[0035] The first elastic connecting member 204 and the second elastic connecting member 205 are both elastic material members with certain deformation and recovery capabilities, such as plastic members or metal members.

[0036] Preferably, the first elastic connecting member 204 only allows the first adjusting block 202 to deflect relative to the base 201 in the left-right direction and limits the relative displacement between the two in other degrees of freedom.

[0037] Preferably, the second elastic connecting member 205 only allows the second adjusting block 203 to deflect relative to the first adjusting block 202 in the vertical direction and limits the relative displacement between the two in other degrees of freedom.

[0038] The first adjusting assembly can adjust the deflection angle of the first adjusting block 202 in the left-right direction and fix the position of the first adjusting block 202. The second adjusting assembly can adjust the deflection angle of the second adjusting block 203 in the vertical direction and fix the position of the second adjusting block 203.

[0039] Optionally, the first elastic connecting member 204 and the second elastic connecting member 205 can both be elastic connecting plates or elastic connecting ribs.

[0040] In some embodiments of the present application, the first elastic connecting member 204 is an elastic connecting plate extending along a plane parallel to the front-rear direction and perpendicular to the horizontal plane. The number of elastic connecting plates can be one or more.

[0041] In some embodiments of the present application, the first elastic connecting member 204 is a plurality of elastic connecting ribs arranged in sequence in the vertical direction, and the elastic connecting ribs extend in the front-rear direction.

[0042] In some embodiments of the present application, the second elastic connecting member 205 is an elastic connecting plate extending along a plane parallel to the horizontal plane. The number of elastic connecting plates can be one or more.

[0043] In some embodiments of the present application, the second elastic connecting member 205 is a plurality of elastic connecting ribs arranged in sequence in the horizontal direction, and the elastic connecting ribs extend in the front-rear direction.

[0044] Specifically, the first adjusting assembly includes adjusting bolts 501 arranged on the left and right sides of the first adjusting block 202. The housing 100 is provided with threaded through holes for mounting the adjusting bolts 501. The adjusting bolts 501 are mounted in the corresponding threaded through holes by threaded cooperation, and the ends thereof extend into the housing 100 and abut against the corresponding side surfaces of the first adjusting block 202. By adjusting the screwing depth of the adjusting bolts 501 on the left and right sides, the distance of the first adjusting block 202 from the left side of the housing 100 and the distance of the first adjusting block 202 from the right side of the housing 100 can be adjusted. Through the deformation of the first elastic connecting member 204, the deflection angle of the first adjusting block 202 in the horizontal left-right direction can be adjusted.

[0045] Specifically, the second adjusting assembly includes adjusting bolts 502 arranged on the upper and lower sides of the second adjusting block 203. The housing 100 is provided with threaded through holes for mounting the adjusting bolts 502. The adjusting bolts 502 are mounted in the corresponding threaded through holes by threaded cooperation, and the ends thereof extend into the housing 100 and abut against the corresponding side surfaces of the second adjusting block 203. By adjusting the screwing depth of the adjusting bolts 502 on the upper and lower sides, the distance of the second adjusting block 203 from the upper side of the housing 100 and the distance of the second adjusting block 203 from the lower side of the housing 100 can be adjusted. Through the deformation of the second elastic connecting member 205, the pitch deflection angle of the second adjusting block 203 in the vertical up-down direction can be adjusted.

[0046] Alternatively, the first adjusting assembly includes adjusting bolts 501 arranged on the left and right sides of the first adjusting block 202. The left and right side surfaces of the first adjusting block 202 are respectively provided with threaded holes matched with the adjusting bolts 501 on the corresponding side. The housing 100 is provided with mounting holes for mounting the adjusting bolts 501. The mounting holes penetrate the side wall of the housing 100. The adjusting bolts 501 are mounted in the corresponding mounting holes, and the ends thereof extend into the housing 100 and are threadedly connected with the threaded holes on the corresponding side surface of the first adjusting block 202. The hole diameter of the mounting hole is greater than the outer diameter of the screw rod of the adjusting bolt 501, so as to provide a displacement gap required for the adjusting bolt 501 in the front-rear direction during the deflection of the first adjusting block 202. By adjusting the screwing depth of the adjusting bolts 501 on the left and right sides, the distance of the first adjusting block 202 from the left side of the housing 100 and the distance of the first adjusting block 202 from the right side of the housing 100 can be adjusted. Through the deformation of the first elastic connecting member 204, the deflection angle of the first adjusting block 202 in the horizontal left-right direction can be adjusted.

[0047] Alternatively, the second adjusting assembly comprises adjusting bolts 502 arranged on the upper and lower sides of the second adjusting block 203, the upper and lower sides of the second adjusting block 203 are respectively provided with threaded holes matched with the adjusting bolts 502 on the corresponding side, the housing 100 is provided with mounting holes for mounting the adjusting bolts 502, the mounting holes pass through the side wall of the housing 100, the adjusting bolts 502 are mounted in the corresponding mounting holes, the ends of the adjusting bolts 502 extend into the housing 100 and are screwed with the threaded holes on the corresponding side of the second adjusting block 203, the hole diameter of the mounting holes is greater than the outer diameter of the screw rod of the adjusting bolts 502, so as to provide the displacement clearance of the adjusting bolts 502 in the left-right direction during the deflection of the first adjusting block 202 and the displacement clearance of the adjusting bolts 502 in the front-rear direction during the deflection of the second adjusting block 203. By adjusting the screwing depth of the adjusting bolts 502 on the upper and lower sides, the distance between the second adjusting block 203 and the upper side of the housing 100 and the distance between the second adjusting block 203 and the lower side of the housing 100 can be adjusted, and the pitch deflection angle of the second adjusting block 203 in the up-down direction can be adjusted through the deformation of the second elastic connecting piece 205.

[0048] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that one skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' or 'including' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The usage of the words 'first','second' and 'third', etc. do not limit the number for these elements. These words are merely used to differentiate between two or more elements or steps.

[0049] All features disclosed in this specification, unless expressly stated to the contrary, are intended to be within the scope of the present application.

[0050] Any feature described in this specification, unless expressly stated to be otherwise, can be replaced by alternative features serving the same, equivalent or similar purpose.

[0051] The present application is not limited to the specific embodiments described above. The application extends to any novel one, or any novel combination, of the features disclosed in this specification, and to any novel method or process disclosed in this specification or any novel combination thereof.

Claims

1. A fiber optic scanner packaging structure, characterized in that, The system 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 first adjusting block is connected to the base via a first elastic connector. The second adjusting block is connected to the first adjusting block via a second elastic connector. The fiber optic scanner is fixedly connected to the second adjusting block. The housing is provided with a first adjustment component that drives the first adjustment block to deflect in the left-right direction and a second adjustment component that drives the second adjustment block to deflect in the pitch direction; The fiber optic scanner is fixedly connected to the second adjustment block.

2. The fiber optic scanner 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 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. A fiber optic scanner 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 fiber optic scanner packaging structure 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 fiber optic scanner packaging structure 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 fiber optic scanner packaging structure 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 housing is provided with threaded through holes for installing the adjustment bolts. The adjustment bolts are installed in the corresponding threaded through holes through threaded engagement, and their ends extend into the housing and press against the corresponding side of the first adjustment block.

8. A fiber optic scanner packaging structure 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 housing is provided with threaded through holes for installing the adjustment bolts. The adjustment bolts are installed in the corresponding threaded through holes through threaded engagement, and their ends extend into the housing and press against the corresponding side of the second adjustment block.

9. A fiber optic scanner packaging structure as described in claim 1 or 2, characterized in that, The first adjustment component includes adjustment bolts located 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 housing is provided with mounting holes for installing the adjustment bolts. The mounting holes penetrate the side wall of the housing. 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 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 first adjustment block.

10. A fiber optic scanner packaging structure 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 housing is provided with mounting holes for installing the adjustment bolts. The mounting holes penetrate the side wall of the housing. The adjustment bolts are installed in the mounting holes on the corresponding sides, with their ends extending into the housing and 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, so as to provide the required displacement clearance of the adjustment bolt in the left-right direction during the deflection of the first adjustment block and the required displacement clearance of the adjustment bolt in the front-back direction during the deflection of the second adjustment block.

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