CN212435806U - Optical axis alignment device based on semi-transparent mirror - Google Patents
Optical axis alignment device based on semi-transparent mirror Download PDFInfo
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- CN212435806U CN212435806U CN202021990266.2U CN202021990266U CN212435806U CN 212435806 U CN212435806 U CN 212435806U CN 202021990266 U CN202021990266 U CN 202021990266U CN 212435806 U CN212435806 U CN 212435806U
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Abstract
The utility model provides an optical axis alignment device based on semi-transparent mirror, include: a support; the first image acquisition assembly and the second image acquisition assembly are arranged on the bracket; the semi-transparent mirror is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror to form a transmission light and a reflection light; and the adjusting assembly is arranged on the support and adjusts the pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly so as to enable the transmission light to be coaxial with the optical axis of the first image acquisition assembly and enable the reflection light to be coaxial with the optical axis of the second image acquisition assembly. The pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly are adjusted through the adjusting assembly, so that the transmitted light and the reflected light are coaxial with the optical axis of the first image acquisition assembly and the optical axis of the second image acquisition assembly respectively, images obtained when the image acquisition assemblies shoot the same point are completely consistent, and the image precision of a composite image is improved.
Description
Technical Field
The utility model relates to a many image acquisition subassembly imaging technology field especially relates to an optical axis aligning device based on semi-transparent mirror.
Background
In a multi-camera shooting environment, all cameras need to be aligned to the same point for shooting, and at the moment, the optical axes of all cameras need to be highly overlapped and aligned, otherwise, image information obtained by each camera may have deviation, so that images of each camera cannot be completely overlapped when being processed by post software, and the display effect of image synthesis is influenced. Due to the fact that size or precision deviation which cannot be avoided exists in the process of part processing and assembling, when multiple cameras are installed respectively and shoot the same point, the optical axes of the cameras cannot be completely overlapped and aligned, and finally the images shot by the cameras have more or less image errors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical axis aligning device based on semi-transparent mirror eliminates the optical axis position appearance deviation that exists after a plurality of image acquisition subassemblies are installed, realizes the alignment completely of the optical axis of a plurality of image acquisition subassemblies.
In order to achieve the above object, the utility model provides an optical axis aligning device based on semi-transparent mirror, include:
a support;
the first image acquisition assembly and the second image acquisition assembly are arranged on the support, the first image acquisition assembly is arranged along the Y axis, and the second image acquisition assembly is arranged along the Z axis;
the semi-transparent mirror is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror to form a transmitted light and a reflected light;
and the adjusting assembly is arranged on the support and adjusts the pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly so as to enable the transmission light to be coaxial with the optical axis of the first image acquisition assembly and enable the reflection light to be coaxial with the optical axis of the second image acquisition assembly.
Optionally, the optical axis of the first image capturing assembly has six degrees of freedom with respect to the optical axis of the second image capturing assembly.
Optionally, the adjustment assembly includes a first translation module, a second translation module, a third translation module, a first rotation module, a second rotation module, and a third rotation module, the first translation module, the second translation module, and the third translation module are respectively driven to enable the optical axis of the first image acquisition assembly to translate along the X axis, the Y axis, and the Z axis with respect to the optical axis of the second image acquisition assembly, and the first rotation module, the second rotation module, and the third rotation module are respectively driven to enable the optical axis of the first image acquisition assembly to rotate around the X axis, the Y axis, and the Z axis with respect to the optical axis of the second image acquisition assembly.
Optionally, the first translation module includes a first translation unit, the first translation unit is connected to the first image capturing assembly or the second image capturing assembly, and the first translation unit is driven to translate the optical axis of the first image capturing assembly along the X axis relative to the optical axis of the second image capturing assembly; alternatively, the first and second electrodes may be,
the first translation module comprises two first translation units, the two first translation units are respectively connected with the first image acquisition assembly and the second image acquisition assembly, and the two first translation units are respectively driven so that the optical axis of the first image acquisition assembly can translate along the X axis relative to the optical axis of the second image acquisition assembly.
Optionally, the first translation unit includes a first base, a first slider, a connecting block, and a first adjusting screw, a first slide rail is disposed on the first base, the first slider is located in the first slide rail and connected to the first adjusting screw through the connecting block, and the first adjusting screw is rotated to drive the connecting block to move and drive the first slider to move along the first slide rail.
Optionally, the second translation module includes a second translation unit, and the second translation unit is connected to the first image capturing assembly or the second image capturing assembly, or the second translation module includes two second translation units, and the two second translation units are respectively connected to the first image capturing assembly and the second image capturing assembly;
when the second translation unit connected with the first image acquisition assembly is driven, the optical axis of the first image acquisition assembly translates along the Y axis relative to the optical axis of the second image acquisition assembly, and when the second translation unit connected with the second image acquisition assembly is driven, the optical axis of the second image acquisition assembly translates along the Z axis relative to the optical axis of the first image acquisition assembly.
Optionally, the second translation unit includes a second base and a second slider, a second slide rail is disposed on the second base, and the second slider can move along the second slide rail.
Optionally, the third translation module includes a third translation unit, and the third translation unit is connected to the first image capturing assembly or the second image capturing assembly, or the third translation module includes two third translation units, and the two third translation units are respectively connected to the first image capturing assembly and the second image capturing assembly;
when the third translation unit connected with the first image acquisition assembly is driven, the optical axis of the first image acquisition assembly is translated along the Z axis relative to the optical axis of the second image acquisition assembly, and when the third translation unit connected with the second image acquisition assembly is driven, the optical axis of the second image acquisition assembly is translated along the Y axis relative to the optical axis of the first image acquisition assembly.
Optionally, the third translation unit includes a second adjusting screw rod, a driven rod, a top plate, a bottom plate and a curved rod, the bottom end of the top plate is connected to the bottom plate through the curved rod, the second adjusting screw rod and the driven rod are both connected to the top plate and penetrate through the bottom plate, the driven rod is connected to the second adjusting screw rod, and the adjusting screw rod is rotated to enable the top plate to move relative to the bottom plate and drive the first image acquisition assembly or the second image acquisition assembly to move.
Optionally, the first rotating module includes a first rotating unit, the first rotating unit is connected to the first image capturing assembly or the second image capturing assembly, and drives the first rotating unit to rotate the optical axis of the first image capturing assembly around the X axis relative to the optical axis of the second image capturing assembly; alternatively, the first and second electrodes may be,
the first rotating module comprises two first rotating units, the two first rotating units are respectively connected with the first image acquisition assembly and the second image acquisition assembly and respectively drive the two first rotating units to enable the optical axis of the first image acquisition assembly to rotate around the X axis relative to the optical axis of the second image acquisition assembly.
Optionally, the first rotating unit includes a first moving block, a third adjusting screw and two first wedge blocks arranged oppositely, two ends of the first moving block are respectively located on the two first wedge blocks, the third adjusting screw is connected with one of the first wedge blocks, and the third adjusting screw is rotated to make the two first wedge blocks move relatively, so that one end of the first moving block rotates relative to the other end of the first moving block.
Optionally, the second rotation module includes a second rotation unit, and the second rotation unit is connected to the first image capturing assembly or the second image capturing assembly, or the second rotation module includes two second rotation units, and the two second rotation units are respectively connected to the first image capturing assembly and the second image capturing assembly;
the optical axis of the first image acquisition assembly is opposite to that of the second image acquisition assembly when the second rotating unit connected with the first image acquisition assembly is driven, the optical axis of the second image acquisition assembly winds around the Z axis to rotate, and the optical axis of the second image acquisition assembly is opposite to that of the first image acquisition assembly when the second rotating unit connected with the second image acquisition assembly is driven, and the optical axis of the first image acquisition assembly winds around the Y axis to rotate.
Optionally, the second rotating unit includes a rotating base, the rotating base is disposed below the first image capturing assembly or the second image capturing assembly, and the rotating base is rotated to rotate the first image capturing assembly or the second image capturing assembly.
Optionally, the third rotation module includes a third rotation unit, and the third rotation unit is connected to the first image capturing assembly or the second image capturing assembly, or the third rotation module includes two third rotation units, and the two third rotation units are respectively connected to the first image capturing assembly and the second image capturing assembly;
the optical axis of the first image acquisition assembly is opposite to that of the second image acquisition assembly when the third rotating unit connected with the second image acquisition assembly is driven, and the optical axis of the second image acquisition assembly is opposite to that of the first image acquisition assembly when the third rotating unit connected with the second image acquisition assembly is driven.
Optionally, the third rotating unit includes a second moving block, a fourth adjusting screw rod and two second wedge blocks arranged oppositely, two ends of the second moving block are respectively located on the two second wedge blocks, the fourth adjusting screw rod is connected with one of the second wedge blocks, and the fourth adjusting screw rod is rotated to enable one end of the second moving block to rotate relative to the other end of the second moving block.
Optionally, the set angle is 45 degrees.
The utility model provides an optical axis alignment device based on semi-transparent mirror, include: a support; the first image acquisition assembly and the second image acquisition assembly are arranged on the support, the first image acquisition assembly is arranged along the Y axis, and the second image acquisition assembly is arranged along the Z axis; the semi-transparent mirror is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror to form a transmitted light and a reflected light; and the adjusting assembly is arranged on the support and adjusts the pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly so as to enable the transmission light to be coaxial with the optical axis of the first image acquisition assembly and enable the reflection light to be coaxial with the optical axis of the second image acquisition assembly. The position and pose of the optical axis of the first image acquisition assembly and/or the position and pose of the optical axis of the second image acquisition assembly are adjusted through the adjusting assembly, so that the transmission light is coaxial with the optical axis of the first image acquisition assembly, the reflection light is coaxial with the optical axis of the second image acquisition assembly, the obtained images are completely consistent when the image acquisition assemblies shoot the same point, and the image precision of the synthesized image is improved.
Drawings
Fig. 1 is a schematic structural diagram of an optical axis alignment apparatus based on a semi-transparent mirror according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first translation unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second translation unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third translation unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first rotating unit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second rotating unit according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a third rotating unit according to an embodiment of the present invention;
wherein the reference numerals are:
10-a scaffold; 20-a first image acquisition assembly; 30-a second image acquisition assembly; 40-a half-lens; 51-a first translation unit; 52-a second translation unit; 53-a third translation unit; 61-a first rotation unit; 62-a second rotation unit; 63-a third rotation unit;
200-the optical axis of the first image capturing component; 300 — the optical axis of the second image capturing component; 510-a first base; 511-a first slider; 512-connecting block; 513 — first adjusting screw; 520-a second base; 521-a second slider; 531-second adjusting screw; 532-driven lever; 533-top plate; 534-a backplane; 535-curved bar; 611-a first moving block; 612-third adjusting screw; 613-first wedge; 621-rotating base; 631-a second moving mass; 632-a fourth adjusting screw; 633-second wedge.
Detailed Description
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1, the present embodiment provides an optical axis aligning apparatus based on a half-mirror, including:
a support 10;
the image acquisition device comprises a first image acquisition assembly 20 and a second image acquisition assembly 30 which are arranged on the support 10, wherein the first image acquisition assembly 20 is arranged along a Y axis, and the second image acquisition assembly 30 is arranged along a Z axis;
the semi-transparent mirror 40 is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror 40 to form a transmission light and a reflection light;
and an adjusting component, which is arranged on the bracket 10 and adjusts the pose of the optical axis 200 of the first image capturing component 20 and/or the pose of the optical axis 300 of the second image capturing component 30, so that the transmitted light is coaxial with the optical axis 200 of the first image capturing component 20, and the reflected light is coaxial with the optical axis 300 of the second image capturing component 30.
In the concept of spatial range, the pose of the optical axis includes degrees of freedom in 6 directions, which are respectively: translation of and rotation about the X, Y, Z axes. Therefore, to achieve perfect alignment of multiple optical axes, it is necessary to align each optical axis in 6 degrees of freedom in the spatial range. Referring to fig. 1, for convenience of illustration, a spatial rectangular coordinate system is established, wherein the X-axis, the Y-axis and the Z-axis mentioned in the present application are three mutually perpendicular coordinate axes of the spatial rectangular coordinate system, the X-axis is a direction perpendicular to the paper surface, the directions of the incident light and the transmitted light are parallel to the Y-axis, and the direction of the reflected light is parallel to the Z-axis.
Specifically, the bracket 10 is used for mounting the first image capturing assembly 20 and the second image capturing assembly 30, the first image capturing assembly 20 is located above the bracket 10, and the second image capturing assembly 30 is located on a side surface of the bracket 10. In this embodiment, the first image capturing assembly 20 is disposed along the Y axis, and the second image capturing assembly 30 is disposed along the Z axis, that is, the first image capturing assembly 20 and the second image capturing assembly 30 are perpendicular to each other. It should be understood that if two image capturing assemblies are disposed in parallel, the optical axes of the two image capturing assemblies will inevitably have a physical distance deviation, and to eliminate the physical distance deviation, the image capturing assemblies are disposed in a manner perpendicular to each other, so that the optical axes of the two image capturing assemblies can completely coincide with each other through the semi-transparent mirror 40.
And a half mirror 40 capable of splitting incident light into transmitted light and reflected light, wherein the set angle is 45 degrees, so as to achieve coincidence between an optical axis 200 of the first image capturing assembly 20 and an optical axis 300 of the second image capturing assembly 30.
On the premise of reasonably determining the processing precision of each relevant part of the bracket 10, since the machining itself has a certain dimensional deviation and the mounting of the bracket 10 also has a deviation, it is easy to cause the deviation of the optical axes 300 of the first image capturing assembly 20 and the second image capturing assembly 30. The pose of the optical axis 200 of the first image acquisition assembly 20 and/or the pose of the optical axis 300 of the second image acquisition assembly 30 are adjusted through the adjusting assembly, so that the transmission light is coaxial with the optical axis 200 of the first image acquisition assembly 20, the reflection light is coaxial with the optical axis 300 of the second image acquisition assembly 30, the obtained images are completely consistent when the image acquisition assemblies shoot the same point, and the image precision of the synthesized image is improved. In this embodiment, the adjusting component may only adjust the pose of the optical axis 200 of the first image capturing component 20, may only adjust the position of the optical axis 300 of the second image capturing component 30, and may also adjust the poses of the optical axis 200 of the first image capturing component 20 and the optical axis 300 of the second image capturing component 30 at the same time, which is not limited in this application.
It should be understood that the coaxial references in this application refer to complete registration in the spatial sense, and are essential to complete registration of the images, therefore, the freedom of rotation of the optical axis 200 of the first image capturing assembly 20 in the direction around the Y axis and the freedom of rotation of the second image capturing assembly 30 around the Z axis are also required to be completely aligned, otherwise there will be a rotation angle deviation between the two images captured by the two image capturing assemblies.
In this embodiment, the optical axis 200 of the first image capturing assembly 20 has six degrees of freedom with respect to the optical axis 300 of the second image capturing assembly 30. It should be understood herein that the degree of freedom of the optical axis 200 of the first image capturing assembly 20 and the degree of freedom of the optical axis 300 of the second image capturing assembly 30 are no less than 6 and no more than 12 to achieve a spatially perfect alignment of the optical axis 200 of the first image capturing assembly 20 with respect to the optical axis 300 of the second image capturing assembly 30. For example, in the limit, when the optical axis 200 of the first image capturing component 20 has 6 degrees of freedom, the optical axis 300 of the second image capturing component 30 may have 0 degree of freedom or 6 degrees of freedom. Alternatively, the optical axis 200 of the first image capturing assembly 20 has three degrees of freedom, and the optical axis 300 of the second image capturing assembly 30 should also have at least three degrees of freedom.
In this embodiment, the first image capturing assembly 20 and the second image capturing assembly 30 include, but are not limited to, a camera, a video camera, and a photosensitive component, and may also be other devices or apparatuses having an image capturing function.
Further, the adjusting assembly includes a first translation module, a second translation module, a third translation module, a first rotation module, a third rotation module, and a second rotation module, the first translation module, the second translation module, and the third translation module are respectively driven to enable the optical axis 200 of the first image capturing assembly 20 to translate along the X axis, the Y axis, and the Z axis with respect to the optical axis 300 of the second image capturing assembly 30, and the first rotation module, the third rotation module, and the second rotation module are respectively driven to enable the optical axis 200 of the first image capturing assembly 20 to rotate around the X axis, the Y axis, and the Z axis with respect to the optical axis 300 of the second image capturing assembly 30.
Specifically, the first translation module includes a first translation unit 51, the first translation unit 51 is connected to the first image capturing assembly 20 or the second image capturing assembly 30, and the first translation unit 51 is driven to translate the optical axis 200 of the first image capturing assembly 20 along the X axis with respect to the optical axis 300 of the second image capturing assembly 30; alternatively, the first and second electrodes may be,
the first translation module includes two first translation units 51, the two first translation units 51 are respectively connected to the first image capturing assembly 20 and the second image capturing assembly 30, and respectively drive the two first translation units 51 to translate the optical axis 200 of the first image capturing assembly 20 along the X axis relative to the optical axis 300 of the second image capturing assembly 30.
It should be understood that the following three ways are included for the optical axis 200 of the first image capturing assembly 20 to translate along the X-axis relative to the optical axis 300 of the second image capturing assembly 30: the first translation unit 51 is provided only at the first image pickup assembly 20; a second translation unit 52 is provided only at the second image acquisition assembly 30; the second translation unit 52 is disposed at both the first image capturing assembly 20 and the second image capturing assembly 30. In this embodiment, referring to fig. 1, the first translating unit 51 is disposed at the first image capturing assembly 20 and above the support 10.
Specifically, referring to fig. 2, the first translation unit 51 includes a first base 510, a first sliding block 511, a connecting block 512, and a first adjusting screw 513, a first sliding rail is disposed on the first base 510, the first sliding block 511 is located in the first sliding rail and connected to the first adjusting screw 513 through the connecting block 512, and the first adjusting screw 513 is rotated to drive the connecting block 512 to move and drive the first sliding block 511 to move along the first sliding rail. In this embodiment, the first slide rail is disposed along an X axis, and when the first adjusting screw 513 is rotated, the connecting block 512 drives the first slider 511 to move along the first slide rail, and at this time, other structures located on the first slider 511 and the first image capturing component 20 will also move along the first slide rail, so that the optical axis 200 of the first image capturing component 20 translates along the X axis relative to the optical axis 300 of the second image capturing component 30, thereby adjusting an axial distance between the optical axes.
The second translation module includes a second translation unit 52, where the second translation unit 52 is connected to the first image capturing assembly 20 or the second image capturing assembly 30, or the second translation module includes two second translation units 52, where the two second translation units 52 are respectively connected to the first image capturing assembly 20 and the second image capturing assembly 30;
when the second translation unit 52 connected to the first image capturing assembly 20 is driven, the optical axis 200 of the first image capturing assembly 20 translates along the Y axis relative to the optical axis 300 of the second image capturing assembly 30, and when the second translation unit 52 connected to the second image capturing assembly 30 is driven, the optical axis 300 of the second image capturing assembly 30 translates along the Z axis relative to the optical axis 200 of the first image capturing assembly 20.
In an actual application environment, different types of image capturing assemblies or different specifications of lenses may be used, and in order to keep the light receiving original points of the optical axes of the two image capturing assemblies consistent, the front and rear positions of the image capturing assemblies need to be adjusted, otherwise, the visual angles of the images obtained by the different image capturing assemblies may have a deviation, and the light receiving original points of the optical axes of the two image capturing assemblies are kept consistent by the second translating unit 52.
Specifically, referring to fig. 3, the second translation unit 52 includes a second base 520 and a second slider 521, a second slide rail is disposed on the second base 520, and the second slider 521 can move along the second slide rail. In this embodiment, the second translating unit 52 is disposed below the first image capturing assembly 20 and the bottom of the first image capturing assembly 20 is in contact with the second translating unit. The second slide block 521 can move along the second slide rail by driving the first image capturing assembly 20 to translate along the Y-axis. Of course, the second translating unit 52 may not contact with the bottom of the first image capturing assembly 20, for example, be disposed below the first translating unit 51, and when the second translating unit 52 is driven, the mechanism above the second translating unit 52 and the first image capturing assembly 20 will move simultaneously. Therefore, the present application does not have any limitation on the placement order and placement position of each translation unit and each rotation unit.
It should be understood that when the second translation unit 52 is disposed at the second image capturing assembly 30, the second image capturing assembly 30 will translate along the Z-axis direction.
The third translation module includes a third translation unit 53, the third translation unit 53 is connected to the first image capturing assembly 20 or the second image capturing assembly 30, or the third translation module includes two third translation units 53, and the two third translation units 53 are respectively connected to the first image capturing assembly 20 and the second image capturing assembly 30;
when the third translation unit 53 connected to the first image capturing assembly 20 is driven, the optical axis 200 of the first image capturing assembly 20 translates along the Z-axis relative to the optical axis 300 of the second image capturing assembly 30, and when the third translation unit 53 connected to the second image capturing assembly 30 is driven, the optical axis 300 of the second image capturing assembly 30 translates along the Y-axis relative to the optical axis 200 of the first image capturing assembly 20.
Specifically, referring to fig. 4, the third translating unit 53 includes a second adjusting screw 531, a driven rod 532, a top plate 533, a bottom plate 534 and a curved rod 535, wherein a top end of the top plate 533 is connected to the first image capturing assembly 20 or the second image capturing assembly 30, a bottom end of the top plate 533 is connected to the bottom plate 534 through the curved rod 535, the second adjusting screw 531 and the driven rod 532 are both connected to the top plate 533 and penetrate through the bottom plate 534, and the driven rod 532 is connected to the second adjusting screw 531, so that the adjusting screw is rotated to move the top plate 533 relative to the bottom plate 534 and drive the first image capturing assembly 20 or the second image capturing assembly 30 to move. Meanwhile, by using the structure of the curved lever 535, the stability and the load capacity of the top plate 533 during movement can be increased.
In this embodiment, the second translating unit 52 is connected to the bottom of the second image capturing assembly 30, the second adjusting screw 531 and the driven rod 532 are both parallel to the Y axis, the second adjusting screw 531 is rotated, and the driven rod 532 and the adjusting screw move synchronously to drive the top plate 533 to translate along the Y axis relative to the bottom plate 534, so as to drive the second image capturing assembly 30 to translate along the Y axis, thereby implementing the adjustment of the optical axis 300 of the second image capturing assembly 30 to translate along the Y axis relative to the optical axis 200 of the first image capturing assembly 20.
It should be understood that, if the third translation unit 53 is connected to the first image capturing assembly 20, the second adjusting screw 531 will be disposed along a direction parallel to the Z axis, so that the optical axis 200 of the first image capturing assembly 20 is translated along the Z axis relative to the optical axis 300 of the second image capturing assembly 30.
The first rotating module comprises a first rotating unit 61, the first rotating unit 61 is connected with the first image capturing assembly 20 or the second image capturing assembly 30, and the first rotating unit 61 is driven to rotate the optical axis 200 of the first image capturing assembly 20 around the X axis relative to the optical axis 300 of the second image capturing assembly 30; alternatively, the first and second electrodes may be,
the first rotating module comprises two first rotating units 61, the two first rotating units 61 are respectively connected with the first image acquisition assembly 20 and the second image acquisition assembly 30, and respectively drive the two first rotating units 61 to enable the optical axis 200 of the first image acquisition assembly 20 to rotate around the X axis relative to the optical axis 300 of the second image acquisition assembly 30.
Specifically, referring to fig. 5, the first rotating unit 61 includes a first moving block 611, a third adjusting screw 612 and two first wedges 613 arranged oppositely, two ends of the first moving block 611 and two ends of the third adjusting screw 612 are respectively located on the two first wedges 613, the third adjusting screw 612 is connected to one of the first wedges 613, and the third adjusting screw 612 is rotated to make the two first wedges 613 move relatively, so that one end of the first moving block 611 rotates relative to the other end of the first moving block 611. In this embodiment, the first rotating unit 61 is located at the first image capturing assembly 20 and disposed between the first translating unit 51 and the second translating unit 52, the two first wedges 613 are disposed along a direction parallel to the Y axis, when the third adjusting screw 612 is rotated, the first wedges 613 connected to the third adjusting screw 612 will move along the Y axis, and since the wedges themselves have an inclined surface, one end of the first moving block 611 rotates relative to the other end, thereby realizing the rotation of the optical axis 200 of the first image capturing assembly 20 relative to the optical axis 300 of the second image capturing assembly 30 around the X axis. Of course, the number of the third adjusting screws 612 may also be two, and the movement of the two first wedges 613 is controlled separately, which is not limited in this application.
The second rotation module includes a second rotation unit 62, and the second rotation unit 62 is connected to the first image capturing assembly 20 or the second image capturing assembly 30, or the second rotation module includes two second rotation units 62, and the two second rotation units 62 are respectively connected to the first image capturing assembly 20 and the second image capturing assembly 30;
when the second rotating unit 62 connected with the first image acquisition assembly 20 is driven, the optical axis 200 of the first image acquisition assembly 20 is opposite to the optical axis 300 of the second image acquisition assembly 30 and rotates around the Z axis, and when the second rotating unit 62 connected with the second image acquisition assembly 30 is driven, the optical axis 300 of the second image acquisition assembly 30 is opposite to the optical axis 200 of the first image acquisition assembly 20 and rotates around the Y axis.
Specifically, referring to fig. 6, the second rotating unit 62 includes a rotating base 621, and the rotating base 621 is disposed below the first image capturing assembly 20 or the second image capturing assembly 30, and rotates the rotating base 621 to rotate the first image capturing assembly 20 relative to the second image capturing assembly 30. In this embodiment, the second rotating unit 62 is disposed at the second image capturing assembly 30, and directly rotating the second image capturing assembly 30 will rotate the optical axis of the second phase around the Y-axis with respect to the optical axis 200 of the first image capturing assembly 20.
The third rotating module comprises a third rotating unit 63, the third rotating unit 63 is connected with the first image capturing assembly 20 or the second image capturing assembly 30, or the third rotating module comprises two third rotating units 63, and the two third rotating units 63 are respectively connected with the first image capturing assembly 20 and the second image capturing assembly 30;
during the drive with the third rotary unit 63 that first image acquisition subassembly 20 is connected, the optical axis 200 of first image acquisition subassembly 20 is relative the optical axis 300 of second image acquisition subassembly 30 winds the Y axle rotates, during the drive with the third rotary unit 63 that second image acquisition subassembly 30 is connected, the optical axis 300 of second image acquisition subassembly 30 is relative the optical axis 200 of first image acquisition subassembly 20 winds the Z axle rotates.
Specifically, referring to fig. 7, the third rotating unit 63 includes a second moving block 631, a fourth adjusting screw 632, and two second wedges 633 arranged oppositely, two ends of the second moving block 631 are respectively located on the two second wedges 633, the fourth adjusting screw 632 is connected to one of the second wedges 633, and the fourth adjusting screw 632 is rotated to rotate one end of the second moving block 631 relative to the other end of the second moving block 631. In this embodiment, the third rotating unit 63 and the first rotating unit 61 may be integrated into a rotation adjusting mechanism to reduce the occupied space of the adjusting assembly, that is, the third rotating unit 63 and the first rotating unit 61 are disposed on the same plane and perpendicular to each other, the second moving block 631 and the first moving block 611 may be a same moving panel, two first wedges 613 and two second wedges 633 are disposed at the bottom of the moving panel, and the moving panel may select a self-aligning bearing as a central supporting point, four wedges are disposed in a cross shape, the fourth adjusting screw 632 is driven to rotate the optical axis 200 of the first image capturing assembly 20 around the Y axis relative to the optical axis 300 of the second image capturing assembly 30, and the third adjusting screw 612 is rotated to rotate the optical axis 200 of the first image capturing assembly 20 around the X axis relative to the optical axis 300 of the second image capturing assembly 30 around the X axis And (7) turning.
It should be understood that when the third rotation unit 63 is disposed at the second image capturing assembly 30, driving the third rotation unit 63 will rotate the optical axis 300 of the second image capturing assembly 30 about the Z-axis relative to the optical axis 200 of the first image capturing assembly 20.
It should be understood that the present application describes an exemplary step manner of the adjustment assembly and illustrates a positional relationship of each translation unit and each rotation unit in the adjustment assembly, and the present application does not set any limitation on an installation position of each translation unit and each rotation unit. In addition, because the degree of freedom adjustment in each direction all adopts the modularized design, so can select single or a plurality of degree of freedom adjustment module according to actual demand, realize the accurate alignment of many optical axes of many image acquisition subassemblies to reduce or even eliminate the image deviation that each image acquisition subassembly obtained, promote the image quality who finally obtains.
To sum up, the embodiment of the utility model provides an optical axis aligning device based on semi-transparent mirror, include: a support; the first image acquisition assembly and the second image acquisition assembly are arranged on the support, the first image acquisition assembly is arranged along an X axis, and the second image acquisition assembly is arranged along a Y axis; the semi-transparent mirror is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror to form a transmitted light and a reflected light; and the adjusting assembly is arranged on the support and adjusts the pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly so as to enable the transmission light to be coaxial with the optical axis of the first image acquisition assembly and enable the reflection light to be coaxial with the optical axis of the second image acquisition assembly. The position and pose of the optical axis of the first image acquisition assembly and/or the position and pose of the optical axis of the second image acquisition assembly are adjusted through the adjusting assembly, so that the transmission light is coaxial with the optical axis of the first image acquisition assembly, the reflection light is coaxial with the optical axis of the second image acquisition assembly, the obtained images are completely consistent when the image acquisition assemblies shoot the same point, and the image precision of the synthesized image is improved.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (16)
1. An optical axis aligning device based on a semi-transparent mirror, comprising:
a support;
the first image acquisition assembly and the second image acquisition assembly are arranged on the support, the first image acquisition assembly is arranged along the Y axis, and the second image acquisition assembly is arranged along the Z axis;
the semi-transparent mirror is arranged at a set angle with the Y axis, and an incident light is transmitted and reflected by the semi-transparent mirror to form a transmitted light and a reflected light;
and the adjusting assembly is arranged on the support and adjusts the pose of the optical axis of the first image acquisition assembly and/or the pose of the optical axis of the second image acquisition assembly so as to enable the transmission light to be coaxial with the optical axis of the first image acquisition assembly and enable the reflection light to be coaxial with the optical axis of the second image acquisition assembly.
2. The half-mirror based optical axis alignment apparatus of claim 1, wherein the optical axis of the first image capturing assembly has six degrees of freedom with respect to the optical axis of the second image capturing assembly.
3. The semi-transparent mirror-based optical axis alignment device according to claim 2, wherein the adjustment assembly comprises a first translation module, a second translation module, a third translation module, a first rotation module, a second rotation module, and a third rotation module, and the first translation module, the second translation module, and the third translation module are respectively driven to enable the optical axis of the first image capturing assembly to translate along the X axis, the Y axis, and the Z axis with respect to the optical axis of the second image capturing assembly, and the first rotation module, the second rotation module, and the third rotation module are respectively driven to enable the optical axis of the first image capturing assembly to rotate around the X axis, the Y axis, and the Z axis with respect to the optical axis of the second image capturing assembly.
4. The half-mirror-based optical axis alignment apparatus according to claim 3, wherein the first translation module includes a first translation unit, the first translation unit is connected to the first image capturing assembly or the second image capturing assembly, and the first translation unit is driven to translate the optical axis of the first image capturing assembly along the X-axis relative to the optical axis of the second image capturing assembly; alternatively, the first and second electrodes may be,
the first translation module comprises two first translation units, the two first translation units are respectively connected with the first image acquisition assembly and the second image acquisition assembly, and the two first translation units are respectively driven so that the optical axis of the first image acquisition assembly can translate along the X axis relative to the optical axis of the second image acquisition assembly.
5. The semi-transparent mirror-based optical axis alignment device according to claim 4, wherein the first translation unit comprises a first base, a first slider, a connecting block and a first adjusting screw, the first base is provided with a first slide rail, the first slider is located in the first slide rail and connected with the first adjusting screw through the connecting block, and the first adjusting screw is rotated to drive the connecting block to move and drive the first slider to move along the first slide rail.
6. The half-mirror-based optical axis alignment apparatus according to claim 3, wherein the second translation module includes one second translation unit, the second translation unit being connected to the first image capturing assembly or the second image capturing assembly, or the second translation module includes two second translation units, the two second translation units being connected to the first image capturing assembly and the second image capturing assembly, respectively;
when the second translation unit connected with the first image acquisition assembly is driven, the optical axis of the first image acquisition assembly translates along the Y axis relative to the optical axis of the second image acquisition assembly, and when the second translation unit connected with the second image acquisition assembly is driven, the optical axis of the second image acquisition assembly translates along the Z axis relative to the optical axis of the first image acquisition assembly.
7. The semi-transparent mirror-based optical axis alignment apparatus according to claim 6, wherein the second translation unit includes a second base and a second slider, the second base is provided with a second slide rail, and the second slider is capable of moving along the second slide rail.
8. The semi-transparent mirror-based optical axis alignment device according to claim 3, wherein the third translation module comprises a third translation unit, the third translation unit is connected with the first image capturing assembly or the second image capturing assembly, or the third translation module comprises two third translation units, and the two third translation units are respectively connected with the first image capturing assembly and the second image capturing assembly;
when the third translation unit connected with the first image acquisition assembly is driven, the optical axis of the first image acquisition assembly is translated along the Z axis relative to the optical axis of the second image acquisition assembly, and when the third translation unit connected with the second image acquisition assembly is driven, the optical axis of the second image acquisition assembly is translated along the Y axis relative to the optical axis of the first image acquisition assembly.
9. The semi-transparent mirror-based optical axis alignment apparatus according to claim 8, wherein the third translation unit includes a second adjusting screw, a driven rod, a top plate, a bottom plate and a curved rod, a bottom end of the top plate is connected to the bottom plate through the curved rod, the second adjusting screw and the driven rod are both connected to the top plate and penetrate through the bottom plate, and the driven rod is connected to the second adjusting screw, and the adjusting screw is rotated to move the top plate relative to the bottom plate and drive the first image capturing assembly or the second image capturing assembly to move.
10. The semi-transparent mirror-based optical axis alignment device according to claim 3, wherein the first rotation module comprises a first rotation unit, the first rotation unit is connected to the first image capturing assembly or the second image capturing assembly, and the first rotation unit is driven to rotate the optical axis of the first image capturing assembly around the X axis relative to the optical axis of the second image capturing assembly; alternatively, the first and second electrodes may be,
the first rotating module comprises two first rotating units, the two first rotating units are respectively connected with the first image acquisition assembly and the second image acquisition assembly and respectively drive the two first rotating units to enable the optical axis of the first image acquisition assembly to rotate around the X axis relative to the optical axis of the second image acquisition assembly.
11. The semi-transparent mirror-based optical axis alignment device according to claim 10, wherein the first rotating unit includes a first moving block, a third adjusting screw and two first wedges oppositely disposed, two ends of the first moving block are respectively disposed on the two first wedges, the third adjusting screw is connected to one of the first wedges, and the third adjusting screw is rotated to relatively move the two first wedges, so that one end of the first moving block rotates relative to the other end of the first moving block.
12. The semi-transparent mirror-based optical axis alignment device according to claim 3, wherein the second rotation module comprises one second rotation unit, the second rotation unit is connected with the first image capturing assembly or the second image capturing assembly, or the second rotation module comprises two second rotation units, the two second rotation units are respectively connected with the first image capturing assembly and the second image capturing assembly;
the optical axis of the first image acquisition assembly is opposite to that of the second image acquisition assembly when the second rotating unit connected with the first image acquisition assembly is driven, the optical axis of the second image acquisition assembly winds around the Z axis to rotate, and the optical axis of the second image acquisition assembly is opposite to that of the first image acquisition assembly when the second rotating unit connected with the second image acquisition assembly is driven, and the optical axis of the first image acquisition assembly winds around the Y axis to rotate.
13. The half-mirror based optical axis alignment apparatus of claim 12, wherein the second rotation unit includes a rotation base disposed below the first image capturing assembly or the second image capturing assembly, the rotation base being rotated to rotate the first image capturing assembly or the second image capturing assembly.
14. The semi-transparent mirror-based optical axis alignment device according to claim 3, wherein the third rotation module comprises a third rotation unit, the third rotation unit is connected to the first image capturing assembly or the second image capturing assembly, or the third rotation module comprises two third rotation units, and the two third rotation units are respectively connected to the first image capturing assembly and the second image capturing assembly;
the optical axis of the first image acquisition assembly is opposite to that of the second image acquisition assembly when the third rotating unit connected with the second image acquisition assembly is driven, and the optical axis of the second image acquisition assembly is opposite to that of the first image acquisition assembly when the third rotating unit connected with the second image acquisition assembly is driven.
15. The semi-transparent mirror-based optical axis alignment device according to claim 14, wherein the third rotating unit includes a second moving block, a fourth adjusting screw and two second wedges oppositely disposed, two ends of the second moving block are respectively located on the two second wedges, the fourth adjusting screw is connected to one of the second wedges, and the fourth adjusting screw is rotated to rotate one end of the second moving block relative to the other end of the second moving block.
16. The half-mirror based optical axis aligning apparatus of claim 1, wherein the set angle is 45 degrees.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113532641A (en) * | 2021-07-30 | 2021-10-22 | 季华实验室 | Spectrum component alignment adjustable spectrometer |
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| CN113532641A (en) * | 2021-07-30 | 2021-10-22 | 季华实验室 | Spectrum component alignment adjustable spectrometer |
| CN113532641B (en) * | 2021-07-30 | 2022-06-21 | 季华实验室 | Spectrum component alignment adjustable spectrometer |
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Address after: Room 305, Block E, 492 Anhua Road, Changning District, Shanghai 200050 Patentee after: Shanghai Tong Guan Intelligent Technology Co.,Ltd. Patentee after: Anhui aiguan Vision Technology Co., Ltd Address before: Room 305, Block E, 492 Anhua Road, Changning District, Shanghai 200050 Patentee before: Shanghai Tong Guan Intelligent Technology Co.,Ltd. Patentee before: Shanghai aiguan Vision Technology Co., Ltd |