CN211506025U

CN211506025U - Optical fiber scanning module assembly structure and auxiliary assembly tool

Info

Publication number: CN211506025U
Application number: CN201922492850.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Chengdu Idealsee Technology Co Ltd
Current assignee: Chengdu Idealsee Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an optical fiber scanning module assembly structure, including bottom plate, camera lens subassembly, first support, optical fiber scanning subassembly and second support, on the optical fiber scanning subassembly was fixed in the bottom plate on through the second support, first support was located the front side of second support, and the camera lens mount of camera lens subassembly has the recess matched with grafting portion that is used for with first support, and the grafting portion cartridge has the encapsulation clearance in the recess and between the cell wall of grafting portion and recess, and grafting portion and recess are through pouring into the fixed bonding of adhesive in the encapsulation clearance. The utility model also discloses a supplementary assembly fixture of processing above-mentioned fiber scanning module assembly structure. The utility model discloses the encapsulation precision is high, has guaranteed the axiality of camera lens with the optic fibre scanning subassembly, and easy and simple to handle simultaneously, low in production cost easily processes.

Description

Optical fiber scanning module assembly structure and auxiliary assembly tool

Technical Field

The utility model relates to an optical fiber scanning device technical field especially relates to an optical fiber scanning module assembly structure and supplementary assembly fixture.

Background

The imaging principle of the optical fiber scanning projection technology is that an actuator drives a scanning optical fiber to perform the motion of a preset two-dimensional scanning track, the light emitting power of a light source is modulated, and information of each pixel point of an image to be displayed is projected onto an imaging area one by one, so that a projection picture is formed. Due to structural or working errors, deviation of the position and the angle of the optical fiber is inevitable, and the position of the emergent light of the optical fiber at the lens is influenced; the optical fiber scanning driver itself may cause the deviation of the light-emitting optical axis from the expected due to the structure or manufacturing error, which all cause the corresponding emergent image to be distorted, eccentric, difficult to focus, and the like.

Meanwhile, the optical fiber scanning device is small in size, the maximum diameter of a packaging shell of the optical fiber scanning device is generally from several centimeters to ten and several centimeters, and how to arrange a structure meeting the function of accurately adjusting the position on the packaging structure with the small size has considerable technical difficulty.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an optical fiber scanning module assembly structure for reduce the equipment or process the degree of difficulty under the prerequisite of guaranteeing the assembly precision.

In order to realize the above-mentioned utility model, the embodiment of the utility model provides a first aspect provides an optical fiber scanning module assembly structure, including bottom plate, lens subassembly, first support, optical fiber scanning subassembly and second support, the equal fixed mounting of first support, second support is on the bottom plate, and optical fiber scanning subassembly fixed mounting is on the second support to the light beam outgoing direction of optical fiber scanning subassembly is preceding, and first support is located the front side of second support, the lens subassembly include the lens mount and install the optical lens group in the lens mount, first support is provided with the recess that is used for the cartridge lens mount, the lens mount have be used for with recess matched with grafting portion, grafting portion cartridge has the encapsulation clearance in the recess and between the cell wall of grafting portion and recess, grafting portion and recess are through pouring into the bonding agent in the encapsulation clearance is fixed.

Furthermore, the optical fiber scanner assembly comprises an actuator and an optical fiber, wherein two ends of the actuator are respectively a fixed end and a free end, the fixed end of the actuator is fixedly connected with the second support, the free end of the actuator vibrates in at least two directions relative to the fixed end under the driving of a driving signal, the optical fiber is fixed at the free end of the actuator in a cantilever supporting mode, and the optical fiber emits light beams to the lens assembly.

Preferably, the adhesive is an ultraviolet curing adhesive.

Preferably, the assembly structure of the encapsulated optical fiber scanning module further comprises a housing and a sealing cover, the housing has an inner cavity with a rear opening, the sealing cover is fixedly connected with the rear end of the housing and seals the rear opening of the inner cavity, the bottom plate is fixedly installed in the inner cavity of the housing, a through hole for the cable of the optical fiber scanning assembly to pass through is formed in the sealing cover, and the cable of the optical fiber scanning assembly passes through the through hole.

Preferably, a first sealing member for sealing the through hole is provided between the cable and the through hole. The cable of the optical fiber scanning component comprises an optical fiber and an electric signal lead, wherein the electric signal lead comprises an electrode lead, a feedback signal wire and the like. Optionally, the first sealing element may be a sealing element such as a sealant or a plug through which the cable may pass.

Preferably, a sealing ring is arranged between the sealing cover and the shell.

Preferably, the part of the front end of the housing, which is located at the front end of the inner cavity, is a light-transmitting part, that is, the area of the light-transmitting part is increased to the maximum extent, so as to avoid shielding the light emitted from the optical fiber scanning assembly due to the fact that the area of the light-transmitting part is too small.

Preferably, the shell is a transparent shell, so that the emergent light beam of the optical fiber scanning component can be ensured to completely pass through, and the working condition of the optical fiber scanning component can be conveniently observed.

Preferably, the bottom plate is connected with the sealing cover through a hinged plate, one end of the hinged plate is fixedly connected with the bottom plate, and the other end of the hinged plate is hinged with the sealing cover through a hinged shaft. So the bottom plate alright with push away the inner chamber or pull out the inner chamber through the closing cap, solve because of the little inconvenient problem of operation in inner chamber space, the articulated structure of one end also provides the degree of freedom for the horizontal fixation of bottom plate simultaneously, ensures the firm of being connected of bottom plate and casing.

Preferably, the bottom plate be provided with the first connection structure who is used for connecting supplementary encapsulation frock, the lens mount be provided with the second connection structure who is used for connecting supplementary encapsulation frock.

Optionally, the first connecting structure and the second connecting structure are both threaded holes.

The utility model discloses the second aspect provides and is used for the assembly a fine scanning module assembly structure's supplementary encapsulation frock, including supporting seat, six-dimensional alignment jig and connecting piece, bottom plate fixed mounting is on the supporting seat, and the lens mount passes through the movable platform fixed connection of connecting piece and six-dimensional alignment jig.

Further optionally, the bottom plate is fixedly connected with the supporting seat through a bolt, the lens mount is fixedly connected with one end of the connecting piece through a bolt, and the other end of the connecting piece is fixedly connected with the movable platform of the six-dimensional adjusting frame through a bolt.

When the optical fiber scanning device is used, the optical fiber scanning component is firstly installed on the second support of the bottom plate, then the six-dimensional adjusting frame is adjusted, the movable platform drives the lens seat to move in six dimensions through the connecting piece, the inserting part of the lens seat is inserted into the groove of the first support, then the position of the lens seat is finely adjusted through an optical imaging device or by observing the imaging condition of a light beam emitted by an optical fiber passing through the lens component, after the position is accurately adjusted in place, the adhesive is injected into the packaging gap, the packaging process is completed when the adhesive completely seals the packaging gap and is fixedly bonded, and the optical fiber scanning device completes high-precision packaging.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the utility model discloses the encapsulation precision is high, has guaranteed the axiality of camera lens with the optic fibre scanning subassembly, and easy and simple to handle simultaneously, low in production cost easily processes.

The utility model discloses can realize the airtight encapsulation of inner chamber, make the unable encapsulation inner chamber that gets into of external dust granule, both guarantee the stability of optical fiber scanning subassembly work, also avoided the interference of dust granule to scanning imaging pattern, do benefit to the improvement imaging quality.

Drawings

Fig. 1 is a schematic structural diagram of an assembly structure of an optical fiber scanning module according to the present invention;

FIG. 2 is a schematic view of an assembly structure between the lens holder and the first support;

FIG. 3 is a rear view of the optical fiber scanning module assembly according to the present invention;

fig. 4 is a schematic structural view of the auxiliary packaging tool of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The optical fiber scanning module assembly structure is shown in fig. 1 and 2 and comprises a bottom plate 1, a lens assembly, a first support 2, an optical fiber scanning assembly and a second support 3, wherein the first support 2 and the second support 3 are fixedly installed on the bottom plate 1, the optical fiber scanning assembly is fixedly installed on the second support 3, the first support 2 is located on the front side of the second support 3 with the light beam emergent direction of the optical fiber scanning assembly as the front, the lens assembly comprises a lens base 4 and an optical lens group 5 installed in the lens base 4, the first support 2 is provided with a groove for inserting the lens base 4, the lens base 4 is provided with an insertion part matched with the groove, the insertion part is inserted in the groove, a packaging gap 6 is formed between the insertion part and the groove wall of the groove, and the insertion part and the groove are fixedly bonded through an adhesive injected into the packaging gap 6.

Further, the optical fiber scanner assembly includes an actuator 8 and an optical fiber 9, two ends of the actuator 8 are respectively a fixed end and a free end, the fixed end of the actuator 8 is fixedly connected with the second support 3, the free end of the actuator 8 vibrates in at least two directions relative to the fixed end under the driving of the driving signal, the optical fiber 9 is fixed at the free end of the actuator 8 in a cantilever supporting manner, and the optical fiber 9 emits a light beam to the lens assembly.

Preferably, the adhesive is an ultraviolet curing adhesive.

Further preferably, as shown in fig. 1 and fig. 3, the assembly structure of the encapsulated fiber scanning module further includes a housing 10 and a cover 11, the housing 10 has an inner cavity with a rear opening, the cover 11 is fixedly connected with the rear end of the housing 10 and seals the rear opening of the inner cavity, the base plate 1 is fixedly mounted in the inner cavity of the housing 10, a through hole 12 for a cable of the fiber scanning module to pass through is formed in the cover 11, and the cable of the fiber scanning module passes through the through hole 12.

Preferably, a first seal 13 is provided between the cable and the bore 12 to seal the bore 12. The cable of the optical fiber scanning component comprises an optical fiber and an electric signal lead, wherein the electric signal lead comprises an electrode lead, a feedback signal wire and the like. Optionally, the first sealing element 13 may be a sealing element such as a sealant or a plug through which the cable may pass.

Preferably, a sealing ring is arranged between the cover 11 and the housing 10.

Preferably, the front end of the housing 10 is located at the front end of the inner cavity and is a light-transmitting portion, that is, the area of the light-transmitting portion is increased to the maximum extent, so as to avoid blocking the light emitted from the optical fiber scanning assembly due to the excessively small area of the light-transmitting portion.

Preferably, the housing 10 is a transparent housing 10, so that the emergent light beam of the optical fiber scanning assembly can be ensured to completely pass through, and the working condition of the optical fiber scanning assembly can be conveniently observed.

Preferably, the base plate 1 is connected with the cover 11 through a hinge plate 14, one end of the hinge plate 14 is fixedly connected with the base plate 1, and the other end of the hinge plate 14 is hinged with the cover 11 through a hinge shaft. So bottom plate 1 alright in order to push away the inner chamber or pull out the inner chamber through closing cap 11, solve because of the little inconvenient problem of operation in inner chamber space, the articulated structure of one end also provides the degree of freedom for bottom plate 1's horizontal fixation simultaneously, ensures the firm connection of bottom plate 1 and casing 10.

Preferably, the bottom plate 1 is provided with a first connecting structure for connecting an auxiliary packaging tool, and the lens mount 4 is provided with a second connecting structure for connecting the auxiliary packaging tool.

The utility model discloses the second aspect provides and is used for assembling a fine scanning module assembly structure's supplementary encapsulation frock, as shown in fig. 4, including supporting seat 15, six-dimensional alignment jig 16 and connecting piece 17, 1 fixed mounting of bottom plate is on supporting seat 15, and lens mount 4 passes through connecting piece 17 and the portable platform fixed connection of six-dimensional alignment jig 16.

Further alternatively, the base plate 1 is fixedly connected to the support base 15 by bolts, the lens holder 4 is fixedly connected to one end of the connecting member 17 by bolts, and the other end of the connecting member 17 is fixedly connected to the movable platform of the six-dimensional adjusting frame 16 by bolts.

When the optical fiber scanning device is used, the optical fiber scanning component is firstly installed on the second support 3 of the bottom plate 1, then the six-dimensional adjusting frame 16 is adjusted, the movable platform drives the lens seat 4 to move in six dimensions through the connecting piece 17, so that the insertion part of the lens seat 4 is inserted into the groove of the first support 2, then the position of the lens seat 4 is finely adjusted through an optical imaging device or by observing the imaging condition of light beams emitted by optical fibers passing through the lens component, after the position is accurately adjusted in place, the adhesive is injected into the packaging gap 6, the packaging process is completed after the adhesive completely seals the packaging gap 6 and is fixedly bonded, and the optical fiber scanning device completes high-precision packaging, and the optical fiber scanning device is simple to operate and low in cost.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design 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 "comprises" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, third, etc. do not denote any order, but rather the words are to be construed as names.

All features disclosed in this specification, except features that are mutually exclusive, may be combined in any way.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. The utility model provides an optical fiber scanning module assembly structure, its characterized in that includes bottom plate, lens subassembly, first support, optical fiber scanning subassembly and second support, first support, second support equal fixed mounting on the bottom plate, optical fiber scanning subassembly fixed mounting on the second support to before the light beam emergent direction of optical fiber scanning subassembly, first support is located the front side of second support, the lens subassembly include the lens mount and install the optical lens group in the lens mount, first support is provided with the recess that is used for cartridge lens mount, the lens mount have be used for with recess matched with grafting portion, grafting portion cartridge has the encapsulation clearance in the recess and between the cell wall of grafting portion and recess, grafting portion and recess are through pouring into the fixed bonding of adhesive in the encapsulation clearance.

2. An optical fiber scanning module assembly as claimed in claim 1, wherein the optical fiber scanner assembly includes an actuator and an optical fiber, the two ends of the actuator are a fixed end and a free end, respectively, the fixed end of the actuator is fixedly connected to the second support, the free end of the actuator vibrates in at least two directions relative to the fixed end under the driving of the driving signal, the optical fiber is fixed to the free end of the actuator in a cantilever manner, and the optical fiber emits the light beam toward the lens assembly.

3. An optical fiber scanning module assembly structure as claimed in claim 1 or 2, wherein the optical fiber scanning module assembly structure further comprises a housing and a cover, the housing has an inner cavity with a rear opening, the cover is fixedly connected with the rear end of the housing and seals the rear opening of the inner cavity, the bottom plate is fixedly installed in the inner cavity of the housing, the cover is provided with a through hole for the cable of the optical fiber scanning assembly to pass through, and the cable of the optical fiber scanning assembly passes through the through hole.

4. The assembly structure of claim 3, wherein a first sealing member is disposed between the cable and the through hole for sealing the through hole.

5. The assembly structure of claim 3, wherein the portion of the front end of the housing at the front end of the inner cavity is light-transmissive.

6. A fiber scanning module assembly according to claim 3, wherein a seal is disposed between the cover and the housing.

7. An assembly structure of fiber scanning module as claimed in claim 3, wherein said base plate is connected to the cover through a hinge plate, one end of the hinge plate is fixedly connected to the base plate, and the other end of the hinge plate is hinged to the cover through a hinge shaft.

8. An assembly structure of an optical fiber scanning module as claimed in claim 1, wherein said bottom plate is provided with a first connecting structure for connecting with an auxiliary packaging tool, and said lens holder is provided with a second connecting structure for connecting with an auxiliary packaging tool.

9. An auxiliary assembly fixture for processing the assembly structure of an optical fiber scanning module set according to any one of claims 1 to 8, comprising a support base, a six-dimensional adjusting frame and a connecting piece, wherein the bottom plate is fixedly arranged on the support base, and the lens holder is fixedly connected with the movable platform of the six-dimensional adjusting frame through the connecting piece.

10. The auxiliary assembly fixture of claim 9, wherein the bottom plate is fixedly connected to the support base by a bolt, the lens mount is fixedly connected to one end of the connecting member by a bolt, and the other end of the connecting member is fixedly connected to the movable platform of the six-dimensional adjusting frame by a bolt.