CN116449523A - Two-dimensional adjusting device and optical system - Google Patents

Abstract

A two-dimensional adjusting device and an optical system relate to the technical field of optical element adjustment. The two-dimensional adjusting device comprises a fixed base, an elastic isolation layer, a movable base and three connecting pieces, wherein the fixed base, the elastic isolation layer and the movable base are sequentially arranged, the connecting pieces sequentially penetrate through the movable base and the elastic isolation layer and then are connected with the fixed base, the three connecting pieces are distributed in a triangular mode, and the positions of the connecting pieces can be adjusted relative to the fixed base so as to adjust the positions of the movable base relative to the fixed base. The two-dimensional adjusting device is simple and convenient to operate, high in adjusting efficiency, high in pointing precision and good in long-term use reliability.

Description

Two-dimensional adjusting device and optical system

Technical Field

The invention relates to the technical field of optical element adjustment, in particular to a two-dimensional adjusting device and an optical system.

Background

In optical systems and related instruments, two-dimensional adjustment is required for some of the optical components, such as lenses, filters, etc., to meet the requirements of the optical path. The current two-dimensional adjustment schemes mainly have three types: the first scheme is to fix a point, respectively arrange jackscrew and extension spring in two vertical directions, push and pull through the jackscrew, adjust the rotation angle of its upper optical element in two directions. The second is to arrange several groups of adjusting pairs in the circumferential direction, each group of adjusting pairs realizes the adjustment of one point in the advancing direction and the retreating direction by one screw for pushing and one screw for locking, and then adjusts the rotation angles of the optical elements on the adjusting pairs in the two directions. The third is to process concave spherical surface on one base, process convex spherical surface on the other base, then arrange screws on the periphery to lock the two bases, and slide the two bases along the spherical surface by adjusting the screws, thereby adjusting the rotation angle of the optical element on the two bases in two directions.

Under the condition that the vibration is strong and changeable, the stability and the reliability of long-term use of the unidirectional tension spring cannot be ensured, and the unidirectional tension spring cannot be applied to the vehicle-mounted or vehicle-mounted surface. The structural adjustment quantity of the scheme II is not visual enough, the adjustment is easy, the adjustment is not in place or excessive, the material is locally deformed, and the directivity is poor when the angle fine adjustment of the angle level is performed. The structure of the third scheme needs to process two spherical surfaces with high matching degree, and the processing cost is high; and because machining errors necessarily exist, only a few points are contacted between the two spherical surfaces, the locking torque of the screw can cause material fatigue of the contact points, and the risk of loosening exists; and the adjustment is inconvenient and not intuitive, and the directivity is not good when the fine adjustment of the angle second level is performed.

Disclosure of Invention

The invention aims to provide a two-dimensional adjusting device and an optical system, which are simple and convenient to operate, high in adjusting efficiency, high in pointing precision and good in long-term use reliability.

Embodiments of the present invention are implemented as follows:

the embodiment of the invention provides a two-dimensional adjusting device which comprises a fixed base, an elastic isolation layer, a movable base and three connecting pieces, wherein the fixed base, the elastic isolation layer and the movable base are sequentially arranged, the connecting pieces sequentially penetrate through the movable base and the elastic isolation layer and then are connected with the fixed base, the three connecting pieces are distributed in a triangular shape, and the positions of the connecting pieces can be adjusted relative to the fixed base so as to adjust the positions of the movable base relative to the fixed base.

Optionally, the connecting piece is the screw, is equipped with first through-hole, second through-hole and screw hole on movable base, elasticity isolation layer and the unable adjustment base in proper order, and the screw passes first through-hole, second through-hole in proper order after fixing at screw hole.

Alternatively, the three connectors are distributed in an equilateral triangle.

Optionally, the elastic isolation layer comprises a plurality of elastic isolation parts which are separated from each other, and the three elastic isolation parts are arranged in one-to-one correspondence with the connecting pieces.

Optionally, the elastic isolation part comprises a plurality of belleville springs which are stacked in sequence.

Optionally, the elastic isolation part further comprises a packaging cover and a packaging block, the belleville spring is arranged on the packaging block, the packaging cover is sleeved on the belleville spring and is movably connected with the packaging block, and a third through hole and a fourth through hole for enabling the connecting piece to pass through are respectively arranged on the packaging cover and the packaging block.

Optionally, one side of the encapsulation piece far away from the belleville spring is provided with the conical surface, and the bottom of encapsulation cover is provided with a plurality of preformings, and the preforming is laminated with the conical surface after buckling to the encapsulation piece.

Optionally, the resilient spacer comprises a resilient washer.

The embodiment of the invention also provides an optical system which comprises an optical element and the two-dimensional adjusting device according to any one of the above, wherein the optical element is arranged on a movable base of the two-dimensional adjusting device.

Optionally, the fixed base and the movable base of the two-dimensional adjusting device are respectively provided with a light through hole, and the light through holes are used for enabling the light beam to pass through and irradiate on the optical element.

The beneficial effects of the embodiment of the invention include:

the two-dimensional adjusting device provided by the embodiment of the invention comprises a fixed base, an elastic isolation layer, a movable base and three connecting pieces, wherein the fixed base, the elastic isolation layer and the movable base are sequentially arranged, the connecting pieces sequentially penetrate through the movable base and the elastic isolation layer and then are connected with the fixed base, the three connecting pieces are distributed in a triangle shape, and the positions of the connecting pieces can be adjusted relative to the fixed base so as to adjust the positions of the movable base relative to the fixed base. According to the two-dimensional adjusting device, the elastic isolation layer is added between the fixed base and the movable base, other contacts except the elastic isolation layer are not formed between the fixed base and the movable base, when directivity is adjusted, only one connecting piece is required to be operated at a time in adjustment, the operation is simple and convenient, and the efficiency is high; the acting force and the reaction force of the connecting piece are applied to the same area, the fixed base and the movable base are not subjected to shearing force, the directivity during fine adjustment cannot be affected due to the fact that the shearing force is subjected to local deformation, and the adjustment pointing precision is high; the elastic deformation of regulation all takes place on the elasticity isolation layer that just has very strong elasticity by itself, does not receive very big stress on unable adjustment base and the movable base, can not make the directionality change because of plastic deformation when long-term use, and the reliability is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a two-dimensional adjusting device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a two-dimensional adjustment device according to an embodiment of the present invention;

FIG. 3 is an enlarged partial schematic view of FIG. 2 at C;

FIG. 4 is a second schematic diagram of a two-dimensional adjusting device according to an embodiment of the present invention;

FIG. 5 is a schematic stacking view of belleville springs in a two-dimensional adjusting device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an elastic isolation portion in a two-dimensional adjusting device according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of the elastomeric isolator of FIG. 6;

FIG. 8 is a second schematic diagram of an elastic isolation portion of a two-dimensional adjusting device according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of the elastomeric isolator of FIG. 8;

fig. 10 is a third schematic structural view of an elastic isolation portion in the two-dimensional adjusting device according to the embodiment of the invention.

Icon: 100-two-dimensional adjusting device; 110-a fixed base; 111-threaded holes; 120-an elastic barrier layer; 121-elastic spacers; 1211-a second through hole; 1212-belleville springs; 1213-packaging cover; 1213 a-tabletting; 1213 b-a third through hole; 1213 c-scoring; 1214-encapsulation block; 1214 a-fourth through holes; 1214 b-conical surface; 1215-an elastic washer; 1216-an annular groove; 130-a movable base; 140-screws; 150-rotating shaft; 160-light holes; 200-a piece to be adjusted.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 3, the embodiment of the present application provides a two-dimensional adjusting device 100, which includes a fixed base 110, an elastic isolation layer 120, a movable base 130 and three connecting pieces, wherein the fixed base 110, the elastic isolation layer 120, the movable base 130 and the three connecting pieces are sequentially arranged, the connecting pieces sequentially penetrate through the movable base 130 and the elastic isolation layer 120 and then are connected with the fixed base 110, the three connecting pieces are distributed in a triangle shape, and the positions of the connecting pieces can be adjusted relative to the fixed base 110 so as to adjust the positions of the movable base 130 relative to the fixed base 110.

The two-dimensional adjusting device 100 includes a fixed base 110, an elastic isolation layer 120, a movable base 130, and three connecting pieces, and is used for two-dimensionally adjusting the to-be-adjusted piece 200, where the to-be-adjusted piece 200 is fixed on the movable base 130, and may be an optical element, such as a mirror, a lens, etc. Specifically, the fixed base 110 and the movable base 130 are oppositely arranged, and an elastic isolation layer 120 is arranged between the fixed base 110 and the movable base 130, wherein one side of the elastic isolation layer 120 is contacted with the fixed base 110, and the other side is contacted with the movable base 130; the fixed base 110, the elastic isolation layer 120 and the movable base 130 are connected through the connecting piece, the axial direction of the connecting piece is parallel to the sequentially arranged directions of the connecting piece, and the connecting piece sequentially penetrates through the movable base 130 and the elastic isolation layer 120 from one side, far away from the elastic isolation layer 120, of the movable base 130 and is connected with the fixed base 110, and the relative position between the connecting piece and the fixed base 110 can be adjusted along the axial direction of the connecting piece. The connecting pieces are distributed in a triangle shape, and the axes of the three connecting pieces respectively penetrate through three vertexes of the triangle and are perpendicular to the surface of the triangle. One connecting piece corresponds to one adjusting point, and the relative distance between the movable base 130 and the fixed base 110 at the adjusting point can be adjusted by adjusting the relative position between the single connecting piece and the fixed base 110, so that the whole body formed by the to-be-adjusted piece 200 and the movable base 130 can be adjusted in two dimensions relative to the fixed base 110.

It will be appreciated that the movable base 130 and the elastic isolation layer 120 are respectively provided with a through hole for allowing the connection member to pass through, and the fixed base 110 is also provided with a hole for fixing the connection member. The movable base 130 and the fixed base 110 are integral parts, and the elastic isolation layer 120 may be an integral part or may include several separate parts.

The assembly sequence of the two-dimensional adjusting device 100 is as follows: firstly, the to-be-adjusted piece 200 and the movable base 130 are installed together, then the connecting piece penetrates through the movable base 130 and the elastic isolation layer 120 and is locked on the fixed base 110, and finally, the relative positions between the connecting piece and the fixed base 110 are respectively achieved according to the required direction. As shown in fig. 1, when the piece to be adjusted 200 is required to be adjusted in a fine adjustment manner, the upper connecting piece is driven to move in the direction B1, and the elastic isolation layer 120 between the fixed base 110 and the movable base 130 has a certain elasticity and is compressed and shortened by the connecting pieces, and at this time, the lower two connecting pieces still remain in the original position without any action, the movable base 130 is driven by the upper connecting pieces, and the piece to be adjusted 200 thereon also rotates downward along with a certain angle around the rotating shaft 150 formed by the lower two connecting pieces. If the left and right angle adjustment is needed, the two lower connectors are adjusted according to the requirement, and at the moment, a small change of the upper and lower angles is caused along the directions B1 and B2 in the figure 1, and the upper connectors are adjusted to be in the correct direction after the left and right angle adjustment is finished.

In the two-dimensional adjusting device 100, an elastic isolation layer 120 is added between the fixed base 110 and the movable base 130, and no other contact exists between the fixed base 110 and the movable base 130 except for the elastic isolation layer 120, when directivity is adjusted, only one connecting piece is required to be operated at a time, two opposite connecting pieces are not required to be adjusted, and the operation is simple and convenient, and the efficiency is high; moreover, only one operation is needed for one connecting piece, the direction and the confirmation torque can be changed simultaneously during adjustment, the repeated adjustment and the back-and-forth adjustment are not needed due to the fact that the torque is rechecked after the directivity is adjusted, and the adjustment process is quick and simple; the acting force and the reaction force of the connecting piece are applied to the same area, the fixed base 110 and the movable base 130 are not subjected to shearing force, the directivity during fine adjustment cannot be affected due to local deformation caused by huge shearing force, and the adjustment pointing precision is high; the adjusted elastic deformation occurs on the elastic isolation layer 120 which has strong elasticity, the fixed base 110 and the movable base 130 are not subjected to great stress, the directivity is not changed due to plastic deformation in long-term use, and the reliability is good.

Optionally, in an implementation manner of the embodiment of the present invention, the connecting piece is a screw 140, and the movable base 130, the elastic isolation layer 120, and the fixed base 110 are sequentially provided with a first through hole, a second through hole 1211, and a threaded hole 111, and the screw 140 sequentially passes through the first through hole and the second through hole 1211 and is then fixed in the threaded hole 111.

The movable base 130 is provided with a first through hole, the elastic isolation layer 120 is provided with a second through hole 1211, the fixed base 110 is provided with a threaded hole 111, one group of the first through hole, the second through hole 1211 and the threaded hole 111 correspond to one screw 140, the tail part of the screw 140 is fixed in the threaded hole 111 after sequentially penetrating through the first through hole and the second through hole 1211, and the movable base 130 and the elastic isolation layer 120 are fixed on the fixed base 110 through the screws 140. It will be appreciated that the first through holes, the second through holes 1211, the threaded holes 111, and the screws 140 are equal in number and disposed in one-to-one correspondence. During adjustment, according to the required direction of the member to be adjusted 200, the depth of the three screws 140 extending into the threaded holes 111 is adjusted respectively. The fixed base 110 and the movable base 130 are connected by the screw 140, there is no risk of loosening in case of sufficient tightening torque, and reliability can be increased by applying a screw paste.

For example, in the present embodiment, the fastening torque requirement range of the screw 140 is 1.2 Nm-1.6 Nm, the torque of the three screws 140 can be screwed to 1.4Nm during the preliminary assembly, at this time, it is determined whether the position of the member to be adjusted 200 meets the requirement, and when the position of the member to be adjusted does not meet the requirement, it is determined which direction the member to be adjusted 200 needs to be adjusted according to the azimuth angle of the offset, and then the screwing depth of the corresponding screw 140 is adjusted, so that the torque during the screw 140 is ensured to be within the predetermined range.

Referring to fig. 1 and 4, in an alternative implementation manner of the embodiment of the present invention, the connection lines of the three connection pieces are in an equilateral triangle shape.

The axes of the three connecting pieces respectively penetrate through the three vertexes of an equilateral triangle and are perpendicular to the surface of the equilateral triangle, so that the whole body formed by the to-be-adjusted piece 200 and the movable base 130 can be adjusted in a two-dimensional plane relative to the fixed base 110, each connecting piece is fully utilized, and the adjusting efficiency is high.

Referring to fig. 1 and 2, in an alternative implementation manner of the embodiment of the present invention, the elastic isolation layer 120 includes three elastic isolation portions 121 that are separated from each other, and the three elastic isolation portions 121 are disposed in one-to-one correspondence with the connecting pieces.

The number of the elastic isolation parts 121 is equal to that of the connecting pieces, and the elastic isolation parts 121 are arranged correspondingly, and each elastic isolation part 121 is used for enabling one connecting piece to pass through. The elastic isolating layer 120 is provided as a plurality of parts separated from each other, and the pointing accuracy of the adjustment is higher.

In other embodiments, the elastic isolation layer 120 may be a monolithic part, and three second through holes are formed thereon for the three connecting pieces to pass through.

Referring to fig. 3 and 5, in an alternative implementation manner, the elastic isolation portion 121 includes a plurality of belleville springs 1212 stacked in sequence.

Because the spring rate and rigidity of the standard series disc springs when being used singly are generally not satisfied, the disc springs are generally stacked for use, and the disc springs can be freely combined in the same-direction stacking mode and the opposite-direction stacking mode. In practical application, the characteristics that the elasticity and the deformation of the belleville springs can be overlapped and used are utilized, and according to the fastening torque requirement of the connecting piece in the structural design, only the proper number and arrangement modes of the belleville springs are needed to be selected, so that the belleville springs can have enough deformation under the condition of meeting the torque requirement. Thus, as long as the fastening torque of the connecting piece during adjustment is ensured to be larger than a required value, two effects of adjustment and fastening can be realized on the adjusting point at the same time during operation.

The elastic isolation part 121 can be formed by directly using the disc springs conforming to DIN2093 (DIN 17221, DIN 17222) or other similar standards, or the elastic isolation part 121 can be formed by using the disc springs which are made into a single piece by self and made of materials conforming to the standards, such as 51CrV4 and the like, and the specific size can be designed according to the pretightening force and the structural space of practical requirements, so that one disc spring has the effect of superposing a plurality of standard parts, and the disc spring has better integrity and is more convenient to use.

For example, the connecting piece is a screw 140, according to the standard requirement of fastening torque of a fastener, the torque value defined by the M3 screw 140 in the structure needs to be greater than 1.2Nm, when the type is selected, the middle belleville spring can bear the torque of 1.2 Nm-1.6 Nm, and the adjusting amount in the interval is enough, when the type is adjusted, 3 screws 140 can be firstly adjusted to 1.4Nm, then according to the actual directivity requirement, 3 screws 140 can be arbitrarily adjusted to meet the requirement in the range of 1.2 Nm-1.6 Nm, and any position where the screws 140 stay in the range can meet the fastening requirement without additional fastening structure and operation.

Referring to fig. 6 and 7, in an alternative implementation manner of the embodiment of the present invention, the elastic isolation portion 121 further includes a package cover 1213 and a package block 1214, the belleville spring 1212 is disposed on the package block 1214, the package cover 1213 is sleeved on the belleville spring 1212 and is movably connected to the package block 1214, and the package cover 1213 and the package block 1214 are respectively provided with a third through hole 1213b and a fourth through hole 1214a for passing the connecting member.

The belleville springs 1212 are disposed on the package 1214 and then packaged with the package cover 1213 to form a set of assembly for subsequent direct complete set of access over the connector during mass production installation, improving efficiency. One of the package cover 1213 and the package block 1214 is disposed toward the fixed base 110 and the other is disposed toward the movable base 130, and the connector penetrates the elastic partition 121 through the third through hole 1213b on the package cover 1213, the second through hole 1211 on the belleville spring 1212, and the fourth through hole 1214a on the package block 1214. The cover 1213 is slidable along the axial direction of the connector relative to the block 1214 to deform the connector by compressing the internal belleville spring 1212 and thereby deforming the resilient spacer 121.

Optionally, in one implementation manner of the embodiment of the present invention, a side of the package 1214 away from the belleville spring 1212 is provided with a plurality of pressing pieces 1213a at the bottom of the package cover 1213, and the pressing pieces 1213a are folded towards the package 1214 and then attached to the conical surface 1214 b. By this arrangement, a plurality of belleville springs 1212 can be packaged to form a single assembly, and the movable connection between the package cover 1213 and the package block 1214 can be ensured.

Illustratively, the preforms 1213a include four preforms 1213a uniformly distributed along the circumferential direction of the package cover 1213. The outside of the preform 1213a is provided with a score 1213c to facilitate bending of the preform 1213a toward the package block 1214.

Referring to fig. 8 to 10, in an alternative implementation manner, the elastic isolation portion 121 includes an elastic washer 1215.

As shown in fig. 8 and 9, other elastic washers 1215 (other than the belleville spring 1212 form) may be machined from spring steel, stainless steel, or the like. Illustratively, the elastic washer 1215 has a hollow cylindrical shape, and the outer wall of the elastic washer 1215 is provided with a plurality of annular grooves 1216 (non-full circle) penetrating to the inner wall, and the plurality of annular grooves 1216 are alternately distributed along the axial direction of the elastic washer 1215.

As shown in fig. 10, a single piece of elastic material, such as a composite material of rubber or polyurethane, can be directly processed into the whole gasket, the thickness of the whole gasket is designed according to the required adjustment, and compared with the elastic gasket 1215 made of metal material, the whole gasket is simpler, no other special design is needed in structure, and the cost is lower.

The elastic requirements of the elastic isolation layer 120 and the torque of the screw 140 are designed or selected as follows:

according to the structural tolerance calculation, the adjustment amount of G (mm) required for a single point is estimated, wherein the adjustment is estimated in the torque range of U (Nm) -V (Nm) by using a screw 140 with the diameter of H (mm), and the elastic force range required at the moment is calculated according to a formula:

f= (U-V)/(0.00026×h) (N), where F is elastic force.

The spring rate of the spring washer designed or selected here requires:

k= (U-V)/(0.00000026×g×h) (N/m), where K is the elastic coefficient.

Aiming at the standard thick-tooth screw with M3×0.5, the torque requirement is measured according to experiments>1.2Nm can meet the fastening requirements of the on-board and vehicle-mounted environments. The test pieces No. 1, no. 2, no. 3 and No. 4 respectively correspond to four fastening moments of 1.2Nm, 1.4Nm, 1.6Nm and 1.8Nm, and vibration test is carried out for a plurality of times within 2 months under the following test conditions: frequency 10Hz and acceleration 1.6m/s ² Time 60s, acceleration slope 3; frequency 45Hz and acceleration 20m/s ² Time 60s, acceleration slope 3; frequency 200Hz and acceleration 20m/s ² Time 60s, acceleration slope 3; frequency 500Hz and acceleration 20m/s ² Time 60s, acceleration slope 3; the above is a set of cycles, 15 sets were made for one vibration test. The experimental conditions of the high and low temperature test are as follows: room temperature%25 ℃ to 20 ℃ below zero, the cooling slope is 3 ℃/min, and the temperature is kept for 6 hours at 20 ℃ below zero; -20 ℃ to 65 ℃, the temperature rising slope is 3 ℃/min, and the temperature is kept for 6 hours at 65 ℃; cooling slope of 3 ℃/min at 65 ℃ to room temperature (25 ℃); the above is one high and low temperature test. The standard coarse tooth screw of m3×0.5 has the following directional offsets in the X and Y directions:

after multiple rounds of aging test, the elastic structure selected by the calculation method still has an angular second-level retention force.

Referring to fig. 1 again, the present embodiment further provides an optical system, which includes an optical element and the two-dimensional adjusting device 100 according to any one of the above, wherein the optical element is disposed on the movable base 130 of the two-dimensional adjusting device 100.

The two-dimensional adjusting device 100 is applied to an optical system, and can two-dimensionally adjust optical elements in an optical path to meet the requirement of the optical path. The movable base 130 is provided with an installation part of the optical element, the optical element is assembled with the movable base 130, and the optical element can be pressed by the pressing sheet 1213a or glued together, which are conventional technical means in the art, and the description of this embodiment is omitted here. The optical element is assembled with the movable base 130 and then mounted as a unit on the fixed base 110, the optical element is separated by the elastic isolation layer 120, and the optical element and the movable base 130 can be adjusted in two dimensions relative to the fixed base 110. The fixing base 110 in the two-dimensional adjusting device 100 may be a single component or may be a part of the optical path structure.

The optical system includes the same structure and advantageous effects as those of the two-dimensional adjusting device 100 in the foregoing embodiment. The structure and the advantages of the two-dimensional adjusting device 100 are described in detail in the foregoing embodiments, and are not described herein.

Optionally, in an implementation manner of this embodiment of the present invention, the fixed base 110 and the movable base 130 of the two-dimensional adjusting device 100 are provided with light holes 160, and the light holes 160 are used to make the light beam pass through and irradiate on the optical element.

It should be noted that, if the elastic isolation layer 120 is of a unitary structure, the light-passing holes 160 should be disposed on the elastic isolation layer 120 so as not to block the optical element. If the elastic isolation layer 120 is formed of several separate parts, the light transmission hole 160 is not required, and only the optical element is required to be exposed.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a two-dimensional adjusting device, its characterized in that, including unable adjustment base, elasticity isolation layer and the movable base that sets gradually to and three connecting piece, the connecting piece passes in proper order the movable base with behind the elasticity isolation layer with unable adjustment base is connected, and three connecting piece are triangle-shaped and distributes, the connecting piece can for unable adjustment base adjustment position is in order to adjust the movable base for unable adjustment base's position.

2. The two-dimensional adjusting device according to claim 1, wherein the connecting piece is a screw, a first through hole, a second through hole and a threaded hole are sequentially formed in the movable base, the elastic isolation layer and the fixed base, and the screw sequentially penetrates through the first through hole and the second through hole and then is fixed in the threaded hole.

3. The two-dimensional adjusting device of claim 1, wherein three of the connecting members are distributed in an equilateral triangle.

4. The two-dimensional adjusting device according to claim 1, wherein the elastic isolating layer comprises three elastic isolating portions separated from each other, and the three elastic isolating portions are arranged in one-to-one correspondence with the connecting pieces.

5. The two-dimensional adjusting device according to claim 4, wherein the elastic isolating portion includes a plurality of belleville springs stacked one on another.

6. The two-dimensional adjusting device according to claim 5, wherein the elastic isolation portion further comprises a packaging cover and a packaging block, the belleville spring is arranged on the packaging block, the packaging cover is sleeved on the belleville spring and is movably connected with the packaging block, and a third through hole and a fourth through hole for enabling the connecting piece to pass through are respectively formed in the packaging cover and the packaging block.

7. The two-dimensional adjusting device according to claim 6, wherein a conical surface is arranged on one side, away from the belleville spring, of the packaging block, a plurality of pressing pieces are arranged at the bottom of the packaging cover, and the pressing pieces are attached to the conical surface after being bent towards the packaging block.

8. The two-dimensional adjustment device of claim 4, wherein the elastic spacer comprises an elastic washer.

9. An optical system comprising an optical element and a two-dimensional adjustment device according to any one of claims 1 to 8, the optical element being arranged on a movable base of the two-dimensional adjustment device.

10. The optical system according to claim 9, wherein the fixed base and the movable base of the two-dimensional adjusting device are each provided with a light passing hole for passing a light beam to be irradiated on the optical element.