CN214895979U

CN214895979U - Optical device

Info

Publication number: CN214895979U
Application number: CN202121489653.2U
Authority: CN
Inventors: 李国丹; 刘熠
Original assignee: Zhuhai Weishi Aikangte Pharmaceutical Technology Co ltd; Hangzhou Weixiao Medical Technology Co ltd
Current assignee: Hangzhou Weixiao Medical Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-11-26
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to an optical device, including optical device and the adjustment mechanism who configures into the angle of adjusting optical device, adjustment mechanism includes: the base comprises a substrate and a limiting piece arranged on one side of the substrate, wherein the substrate is provided with a through hole positioned in the center and a plurality of adjusting holes positioned on the periphery; a support member movably disposed on the stopper member and configured to support the optical device, the support member being provided with a screw hole at a side close to the substrate; a connection assembly including a screw and an elastic member disposed along a length direction of the screw, the screw being configured to be connected to the screw via the through hole and having a head portion formed at an end portion, both ends of the elastic member being capable of respectively pressing against the head portion and the substrate; and the adjusting pieces are movably assembled in the adjusting holes and abut against the supporting pieces to drive the supporting pieces to deflect relative to the base. Based on the utility model discloses, can provide an optical device with little volume guiding mechanism.

Description

Optical device

Technical Field

The utility model relates to an optical device, concretely relates to optical device with guiding mechanism.

Background

An optical coherence tomography apparatus is generally composed of a light source, a spectrometer, a fiber coupler, a reference arm, a measurement arm, and a photodetection system. Wherein the reference arm typically has optics such as a collimating mirror and a mirror plate.

Typically, the optics need to be in a predetermined position to function. Especially for precision instruments such as optical coherence tomography equipment, minor errors in the design, manufacture or assembly of the optical devices can seriously affect the imaging quality. It is therefore common to design the adjustment mechanism for use with the optical device.

However, such an adjusting mechanism is generally bulky and cannot be applied to a scene with limited installation space, such as a reference arm.

Disclosure of Invention

The present invention has been made in view of the above-mentioned state of the art, and an object of the present invention is to provide an optical device having an adjustment mechanism with a small volume.

To this end, the present invention relates to an optical apparatus, comprising an optical device and an adjustment mechanism configured to adjust an angle of the optical device, the adjustment mechanism comprising: the base comprises a base plate and a limiting part arranged on one side of the base plate, and the base plate is provided with a through hole positioned in the center and a plurality of adjusting holes positioned on the periphery; a support movably disposed on the stopper and configured to support the optical device, the support being provided with a screw hole at a side close to the substrate; a connection member including a screw configured to be connected to the screw hole via the through hole and formed with a head at an end, and an elastic member provided along a length direction of the screw, both ends of the elastic member being capable of being pressed against the head and the base plate, respectively; and the adjusting pieces are movably assembled in the adjusting holes and abut against the supporting pieces so as to drive the supporting pieces to deflect relative to the base.

In the present invention, the support member may be used to carry the optical device; the adjusting piece can be assembled on the base and abutted against the supporting piece so as to drive the supporting piece to deflect relative to the base; a connecting assembly connecting the support member to the base and exerting a force on the support member toward the base; the adjustment member and the connection member cooperate to maintain the support member in the operative position. In addition, the connecting assembly is connected with the supporting member through threads, in this case, a gap is formed between the screw rod and the screw hole, and the connecting assembly can be used for being still connected with the supporting member when the supporting member deflects relative to the base. In addition, the limiting member can be used for maintaining the supporting member at a preset position. Thereby, the angle of the optical device provided on the support can be adjusted. In addition, supporting part and regulating part all set up on the base, and make supporting part and regulating part arrange according to specific structure, can make optical device compact structure, from this, also can use under the limited scene in space the utility model discloses an optical device.

In addition, in the optical device according to the present invention, optionally, a diameter of the head is larger than a diameter of the through hole. Thereby, the head can be prevented from passing through the through hole.

In addition, in the optical device according to the present invention, optionally, the elastic member is a spring or an elastic washer. In this case, the elastic washer or the spring can thereby increase the frictional force when the screw is engaged with the screw hole. In addition, this type of elastic element is easy to assemble and has the advantage of being inexpensive.

Additionally, in the optical device of the present invention, optionally, the adjusting member is a differential head or a screw. Thereby, the adjusting piece can be movably assembled in the adjusting hole and abut against the supporting piece to drive the supporting piece to deflect relative to the base.

In addition, in the optical device according to the present invention, optionally, the plurality of adjustment holes include at least three adjustment holes that surround the through hole and are arranged in an L shape. In this case, various inclinations of the support with respect to the base can be easily adjusted.

In addition, in the optical device according to the present invention, optionally, the supporting member is formed with a groove corresponding to the adjusting member one to one. In this case, after the adjusting member is penetratingly fitted into the adjusting hole, the adjusting member continues to enter the groove, whereby the base can be substantially aligned with the support. Meanwhile, the adjusting piece can reliably abut against the supporting piece, and relative deflection displacement of the adjusting piece and the supporting piece is avoided.

In addition, in the optical device according to the present invention, optionally, the stopper and the substrate are formed as an integral piece, wherein the stopper is formed as a stepped portion of the integral piece. Therefore, the manufacturing process of the substrate and the limiting member can be simplified. At the same time, the number of parts is reduced.

Additionally, in the optical device according to the present invention, optionally, the stopper is a bolt having a central axis parallel to the lower surface of the support member. This can simplify the structure of the base.

Further, in the optical device according to the present invention, optionally, the adjusting member is configured such that the optical device can have a rotation range of ± 8 ° around each coordinate axis of a cartesian coordinate system, wherein an X-axis direction of the cartesian coordinate system corresponds to an extending direction of the lateral portion of the L, and a Z-axis direction of the cartesian coordinate system corresponds to an extending direction of the vertical portion of the L. Thus, the optical device can be rotated by a certain angle in any direction in the Cartesian coordinate system.

Additionally, the present invention relates to an optical device, wherein the inner diameter of the through hole is larger than the inner diameter of the screw hole. In this case, the screw can easily pass through the through hole and be connected with the screw hole. In addition, the clearance between the screw and the through hole can allow the screw to incline a certain angle in the through hole, so that the adjusting range of the optical device is enlarged.

In addition, the present invention relates to an optical device, wherein, optionally, a space between the upper surface of the stopper and the lower surface of the supporting member is 0.2 to 5 mm. In this case, a space for avoiding relative movement (rotation) of the support and the base can be provided, so that the support can be adjusted more smoothly.

According to the utility model discloses can provide an optical device with little volume guiding mechanism.

Drawings

Embodiments of the invention will now be explained in further detail by way of example only with reference to the accompanying drawings, in which:

fig. 1 is a schematic diagram illustrating a reference arm module involved in an example of the present invention.

Fig. 2 is a block diagram showing an optical device according to an example of the present invention.

Fig. 3 is an exploded view showing the structure of an optical device according to an example of the present invention.

Fig. 4 is a schematic diagram illustrating the horizontal angular adjustment of the optical device according to the example of the present invention.

Fig. 5 is a schematic diagram illustrating the vertical angular adjustment of an optical device according to an example of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. In the drawings, the same components or components having the same functions are denoted by the same reference numerals, and redundant description thereof will be omitted.

It is noted that the terms "comprises," "comprising," and "having," and any variations thereof, in the present disclosure, such that a process, method, system, article, or apparatus that comprises or has a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include or have other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the following, the invention will be further explained with reference to the accompanying drawings, in which fig. 1 is a schematic view of a reference arm module according to an example of the invention. Fig. 2 is a structural view showing an optical device 1 according to an example of the present invention.

As shown in fig. 1, the reference arm module may comprise a galvanometer 2, a collimating element 3, and a plurality of optical devices 1. In some examples, the input light may be changed into parallel light through the collimating element 3. In some examples, the parallel light may be reflected onto the optical device 1 through the galvanometer 2. In some examples, the galvanometer 2 may be deflected to sequentially reflect parallel light onto the plurality of optical devices 1.

In some examples, the specific structure of the optical device 1 may refer to fig. 2. In some examples, the optical apparatus 1 may include an optical device 20 and an adjustment mechanism configured to adjust an angle of the optical device 20. In some examples, the adjustment mechanism that adjusts the angle of the optical device 20 may be simply referred to as the adjustment mechanism 10.

In some examples, the optical device 20 may be a mirror plate. Therefore, the adjusting device can be used for adjusting the reflection angle of the reflector plate. It is understood that the optical device 20 may also be other types of optical devices, such as other forms of lenses, etc., based on the concepts of the present disclosure.

In some examples, the adjustment mechanism 10 may include a base 11, a support 12, a connection assembly 13, and a plurality of adjusters 14. In some examples, the adjustment member 14 may drive the support member 12 to deflect relative to the base 11. Specifically, the support 12 deflects about the illustrated X, Y, and Z directions.

In addition, it should be noted that the terms of relative positions and relative directions such as "X direction", "Y direction", "Z direction", "horizontal direction", "vertical direction", and the like herein refer to a general operation posture and should not be considered as limiting.

In some examples, the support 12 may be used to carry the optics 20. In some examples, the adjustment member 14 may abut the support member 12 to drive the support member 12 to deflect relative to the base 14. In some examples, connection assembly 13 may connect support 12 with base 11 and apply a force to support 12 toward base 11. In some examples, the adjustment member 14 and the connection assembly 13 cooperate to maintain the support member 12 in the working position.

In some examples, the adjustment member 14 may be provided on the base 11. This makes it possible to make the optical device 1 compact and to reduce the volume of the optical device 1.

Fig. 3 is an exploded view showing the structure of the optical device 1 according to the example of the present invention.

In some examples, the susceptor 11 may include a substrate 111. In some examples, the base 11 may further include a stopper 112.

In some examples, the substrate 111 may have a plate shape. In this case, the substrate 111 is easily prepared. In addition, the base plate 111 may provide a reference surface for viewing the angular changes of the conditioning element 14.

In some examples, the stop 112 may be used to maintain the bearing 12 in a predetermined position during installation or commissioning of the bearing 12.

In some examples, the stopper 112 is formed as a unitary piece with the base plate 111, wherein the stopper 112 is formed as a stepped portion of the unitary piece. This reduces the number of parts, and simplifies the manufacturing process and the assembling process of the substrate 111 and the stopper 112. In a natural state, the upper surface of the stopper 112 (step portion) is spaced from the lower surface of the support 12 by 0.2 to 5mm to provide a space for avoiding the relative movement (rotation) between the support 12 and the base 11, so that the support 12 (optical device 20) can be adjusted more smoothly.

In addition, in some examples not shown, the stoppers 112 may be replaced with bolts. Specifically, the stopper 112 may be a bolt on the substrate 111. In some examples, the bolts may be disposed side-by-side on a side proximate the support 12. In some examples, the upper surface of the bolt is spaced from the support 12 by a distance of 0.2-5 mm. More specifically, the direction is illustrated in conjunction with fig. 3 and 5, and the bolt may be arranged in such a manner that the central axis is parallel to the upper surface of the stepped portion of fig. 5. In this case, the base 11 can be made simple and compact in structure. It will be appreciated that this form of the limiting member 112 has a similar effect to the above-described limiting member 112 in the form of a stepped portion.

In some examples, the stopper 112 is integrally formed with the substrate 111. This can simplify the manufacturing process of the substrate 111 and the stopper 112.

In some examples, the substrate 111 may have a through hole (described below) in the center.

In some examples, the substrate 111 may be further provided with a plurality of regulation holes 114 (including a first regulation hole 1141, a second regulation hole 1142, and a third regulation hole 1143 shown in fig. 3). In some examples, the number of adjustment holes 114 may be 3. In general, the smaller the number of parts, the simpler and more compact the mechanism structure, and in this case, the number of the adjustment holes 114 is 3, and the number of the corresponding adjustment portions 14 may also be 3, so that the structure of the adjustment mechanism 10 can be made simpler and more compact to some extent.

In some examples, the plurality of adjustment apertures 114 includes a first adjustment aperture 1141, a second adjustment aperture 1142, and a third adjustment aperture 1143 arranged in an L-shape. In some examples, a plane defined by the central axes of the first and second adjustment holes 1141 and 1142 may be a vertical plane. In some examples, the plane defined by the central axes of the second and third adjustment holes 1142, 1143 may be a horizontal plane. In this case, it is possible to facilitate adjustment of the inclination of the support 12 with respect to the base 11, and specifically, the support 12 is deflectable about at least one of the illustrated X direction, Y direction, and Z direction.

In some examples, the adjustment member 14 and the limiting member 112 are configured such that the optical device 20 can have a rotation range of ± 8 ° about each coordinate axis of the cartesian coordinate system.

In some examples, the X-axis direction of the cartesian coordinate system corresponds to the direction of extension of the lateral portion of the L, and the Z-axis direction of the cartesian coordinate system corresponds to the direction of extension of the vertical portion of the L. This allows the optical device 20 to be rotated by a predetermined angle in any direction in the cartesian coordinate system.

In some examples, the plurality of adjustment apertures 114 may also include a preformed aperture (not shown). Thus, the first, second, and

third regulation holes

1141, 1142, and 1143 may be used after being damaged. For example, in some examples, the adjustment member 14 may include a fourth adjustment hole (not shown), and the fourth adjustment hole is disposed at four end points of one rectangle with the first adjustment hole 1141, the second adjustment hole 1142, and the third adjustment hole 1143, respectively. In this case, when any one of the first, second, or

third regulation holes

1141, 1142, or 1143 is damaged, the fourth regulation hole may be used as a substitute hole.

In some examples, the plurality of adjustment members 14 may include at least a first adjustment member 141 corresponding to the first adjustment aperture 1141, a second adjustment member 142 corresponding to the second adjustment aperture 1142, and a third adjustment member 143 corresponding to the third adjustment aperture 1143.

In some examples, the first adjustment member 141 may be configured to movably fit in the first adjustment aperture 1141 and abut against the support member 12. In addition, when the second and

third adjusters

142 and 143 are movably fitted to the second and third adjustment holes 1142 and 1143, respectively, and abut against the support 12, the support 12 may be deflected with respect to the adjustment hole 113 by adjusting the length between the base plate 111 and the support 12 in the adjuster 14.

In some examples, the number of adjustment members 14 may be 3. In this case, three point contacts between the adjusting member 14 and the support member 12 can improve the efficiency of adjusting the optical device 1. Specifically, at least three point contacts may define a surface, and the additional point contacts may result in an increase in the number of parts of the apparatus and some difficulty in debugging.

In some examples, the first, second, or

third adjustment member

141, 142, 143 may be a differential head or a screw. In this case, the length of the section of the adjusting member 14 between the base plate 111 and the support member 12 may be changed by rotating the first, second, or third adjusting

members

141, 142, or 143, thereby driving the support member 12 to be deflected with respect to the susceptor 11.

In some examples, the first, second, or

third adjustment holes

1141, 1142, 1143 may be threaded holes, in which case the first, second, or

third adjustment members

141, 142, 143 may be used in cooperation with each other.

In some examples, the first, second, or

third adjustment holes

1141, 1142, 1143 may be through holes, in which case they may be used when the first, second, or

third adjustment members

141, 142, 143 are differential heads.

In some examples, the support member 12 is formed with a plurality of grooves 121, a groove 1211, a groove 1212, and a groove 1213, which correspond one-to-one to the first, second, and third adjusting

members

141, 142, and 143, respectively. In this case, after the adjusting member 14 is penetratingly fitted into the adjusting hole 114, the adjusting member 14 continues to enter the groove 121, whereby the base 11 can be substantially aligned with the support member 12. Preferably, the radius of the groove 121 is larger than the radius of the adjustment member 14. Thereby, the adjuster 14 can be made to enter the groove 121 completely.

In some examples, the support 12 may be used to support the optic 20.

In some examples, a side of the support 12 near the base plate 111 may be provided with a screw hole 122.

In some examples, the connection assembly 13 may include a screw 131, a head 133 disposed at one end of the screw, and an elastic member 132. In this case, the connection member 13 is screwed to the support member 12, and the screw 131 and the screw hole 122 have a clearance therebetween, so that the connection member 13 is still connected to the support member 12 when the support member 12 is deflected with respect to the base 11.

In some examples, the screw 131 may be connected with the screw hole 122 via the through hole 113.

In some examples, the diameter of the head 133 may be greater than the diameter of the through-hole 113. In this case, the connection member 13 can be prevented from passing through the through hole 113.

In some examples, the head 133 may be a screw head integrally formed with the screw 131.

In some examples, first, second, and

third adjustment holes

1141, 1142, 1143 are arranged around the through hole 113. In this case, when the support 12 is deflected with respect to the base 11, the deflection angle of the region in the vicinity of the through hole 113 is relatively small as a whole, so that the range of angular adjustment of the optical device 1 can be increased to some extent.

In some examples, the inner diameter of the through-hole 113 may be greater than the inner diameter of the screw hole 122. In this case, the screw 131 can be easily inserted through the through hole 113 and coupled with the screw hole 122. In addition, the clearance between the screw 131 and the through hole 113 may allow the screw 131 to tilt a certain angle within the through hole, thereby increasing the adjustment range of the optical device 1.

In some examples, the elastic member 132 may be disposed along a length direction of the screw 131. In some examples, the elastic member 132 may be located between the head 133 and the substrate 111. In this case, the elastic member 132 may increase friction when the screw 131 is engaged with the screw hole 122. In addition, the elastic element 132 is located between the head 133 and the base plate 111, and the screw 131 can be rotated to adjust the distance between the head 133 and the base plate 111, so as to adjust the increase or decrease of the elastic force.

In some examples, the resilient member 132 may be a spring or a resilient pad. In this case, an elastic washer or spring may increase the frictional force when the screw 131 is engaged with the screw hole 122. Alternatively, a spring or resilient pad may be mounted around the threaded rod 131. This can reduce the production cost of the adjustment mechanism 10, and can make the adjustment mechanism 10 compact. Preferably, the elastic member 132 is a spring. In this case, the spring may be bent to accommodate the screw 131 being inclined at an angle within the through hole 113.

Fig. 4 is a schematic diagram illustrating the horizontal angular adjustment of the optical device 1 according to the example of the present invention.

As shown in fig. 4, when the position of the second adjusting member 142 is kept unchanged, the third adjusting member 143 is rotated to make the length of the third adjusting member 143 between the base plate 111 and the supporting member 12 greater than the length of the second adjusting member 142 between the base plate 111 and the supporting member 12, so as to control the supporting member 12 to deflect relative to the base plate 111.

Fig. 5 is a schematic diagram illustrating the vertical angular adjustment of the optical device 1 according to an example of the present invention.

As shown in fig. 5, when the position of the second adjusting member 142 is kept unchanged, the first adjusting member 141 is rotated to make the length of the first adjusting member 141 between the base plate 111 and the supporting member 12 greater than the length of the second adjusting member 142 between the base plate 111 and the supporting member 12, so as to control the supporting member 12 to deflect relative to the base plate 111.

In the present disclosure, the support 12 may be used to carry the optics 20; the adjusting member 14 can be assembled on the base 11 and abut against the supporting member 12 to drive the supporting member 12 to deflect relative to the base 11; the connection assembly 13 connects the support 12 with the base 11 and exerts a force on the support 12 towards the base 11; the adjustment member 14 and the connection assembly 13 cooperate to maintain the support member 12 in the operative position. In addition, the connection assembly 13 is screwed to the support 12, in which case there is a gap between the threaded rod 131 and the threaded hole 122, which allows the connection assembly 13 to remain connected to the support 12 when the support 12 is deflected relative to the base 11. In addition, the limiting member 112 can be used to maintain the supporting member 12 at a predetermined position. Thereby, the angle of the optical device 20 provided on the support 12 can be adjusted.

In addition, coupling assembling 13 and regulating part 14 all set up on base 11, have effectively improved base 11's space utilization, and coupling assembling 13 arranges according to particular structure with regulating part 14, and regulating part 14 can be the screw, and the quantity of regulating part 14 can be 3, and the quantity of coupling assembling 13 can be 1, can make optical device 1 compact structure from this, consequently, also can use under the limited scene in space the utility model discloses an optical device 1. To sum up, the present invention can provide an optical device 1 having a small-sized adjustment mechanism 10.

While the invention has been specifically described above in connection with the drawings and examples, it will be understood that the above description is not intended to limit the invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the invention, and such modifications and variations are within the scope of the invention.

Claims

1. An optical device, characterized in that,

comprising an optical device and an adjustment mechanism configured to adjust an angle of the optical device,

the adjustment mechanism includes:

the base comprises a base plate and a limiting part arranged on one side of the base plate, and the base plate is provided with a through hole positioned in the center and a plurality of adjusting holes positioned on the periphery;

a support movably disposed on the stopper and configured to support the optical device, the support being provided with a screw hole at a side close to the substrate;

a connection member including a screw configured to be connected to the screw hole via the through hole and formed with a head at an end, and an elastic member provided along a length direction of the screw, both ends of the elastic member being capable of being pressed against the head and the base plate, respectively; and

a plurality of adjustment members configured to movably fit in adjustment apertures and abut against the support for driving the support to deflect relative to the base.

2. The optical device according to claim 1,

the diameter of the head is larger than the diameter of the through hole.

3. The optical device according to claim 1,

the elastic piece is a spring or an elastic gasket.

4. The optical device according to claim 1,

the adjusting piece is a differential head or a screw.

5. The optical device according to any one of claims 1 to 4,

the plurality of adjusting holes at least comprise three adjusting holes which surround the through hole and are arranged in an L shape.

6. The optical device according to claim 1,

the supporting member is formed with grooves corresponding one-to-one to the regulating members.

7. The optical device according to claim 1,

the stopper is formed as an integral piece with the base plate, wherein the stopper is formed as a stepped portion of the integral piece.

8. The optical device according to claim 1,

the limiting piece is a bolt with a central axis parallel to the lower surface of the supporting piece.

9. The optical device according to claim 5,

the adjustment member is configured such that the optical device can have a rotation range of ± 8 ° about each coordinate axis of a cartesian coordinate system, wherein an X-axis direction of the cartesian coordinate system corresponds to an extending direction of a lateral portion of the L, and a Z-axis direction of the cartesian coordinate system corresponds to an extending direction of a vertical portion of the L.

10. Optical device according to one of claims 1, 8, 9,

the spacing between the upper surface of the limiting piece and the lower surface of the supporting piece is 0.2-5 mm.