CN220961996U - Reflecting device for vertical light path switching - Google Patents
Reflecting device for vertical light path switching Download PDFInfo
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- CN220961996U CN220961996U CN202322786420.4U CN202322786420U CN220961996U CN 220961996 U CN220961996 U CN 220961996U CN 202322786420 U CN202322786420 U CN 202322786420U CN 220961996 U CN220961996 U CN 220961996U
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- 230000003287 optical effect Effects 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012634 optical imaging Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a reflecting device for switching a vertical light path, which comprises a reflecting mirror seat, a reflecting mirror, a rotating mechanism and a limiting block; the reflector seat is provided with two mutually perpendicular light-in surfaces and one light-out surface perpendicular to the two light-in surfaces, the reflector is rotatably arranged in the reflector seat, the longitudinal axis of the reflector is coincident with the body diagonal line of a cube formed according to the two light-in surfaces and the light-out surfaces of the reflector seat, one end of the reflector is provided with a supporting rotating shaft, the other end of the reflector is provided with a fixed rotating shaft, a centering ball bearing is sleeved on the supporting rotating shaft, two angular contact ball bearings are sleeved on the fixed rotating shaft, the rotating mechanism comprises a half gear, a motor and a driving gear, the half gear is fixedly sleeved on the fixed rotating shaft of the reflector, and the driving gear is arranged at the shaft end of the motor and meshed with the half gear; the limiting block is fixed on the reflector seat and positioned between two ends of the semi-annular gear of the semi-gear, and the rotation range of the semi-gear is limited to 90 degrees. The reflector mounting structure is stable and high in rigidity.
Description
Technical Field
The utility model belongs to the technical field of optical imaging, relates to a multi-light-path optical imaging system, and particularly relates to a reflecting device for switching a vertical light path.
Background
In general form, as shown in fig. 1, a multi-path optical imaging system is provided, in which a beam of incident light enters a first optical system 21 in a vertical direction, passes through a mirror 2, and enters a detector 24 through an optical assembly 23; the other beam of incident light enters the second optical system 22 in the horizontal direction, passes through the mirror 2 and enters the detector 24 through the optical assembly 23. The core element of such an optical system is a reflecting device, which switches between two perpendicular incident light paths by controlling the mirror 2 to switch between two fixed attitudes. The advantages of such an optical imaging system over two independent sets of optical-detector imaging systems include the following two points: first, such an imaging system requires only one detector element, which is relatively inexpensive; and secondly, the imaging system has a compact overall structure, and compared with two independent systems, the imaging system has smaller occupied space and lower weight of the whole machine and has stronger performance. However, such an optical imaging system has a difficulty in controlling the positioning accuracy, the posture accuracy, and the overall rigidity of the reflecting device. Because the two incident lights and the emergent lights are distributed in three mutually perpendicular directions, the difficulty of structural arrangement is high. As shown in fig. 2, the structure principle of the general reflection device is that the reflection mirror 2 is arranged at the tail end of one cantilever rod 25, the clamp angle of the reflection mirror surface and the cantilever rod shaft is 45 degrees, the front end of the cantilever rod is provided with a driving mechanism 26, and the cantilever rod 25 and the reflection mirror 2 are rotated by 90 degrees through the driving mechanism 26 to realize the switching of the vertical incidence light path, but the control precision and the integral rigidity of the cantilever structure are difficult to ensure.
Disclosure of Invention
The utility model aims to solve the problems, and designs a reflecting device for switching a vertical light path, so that the positioning and posture precision of a reflecting mirror are ensured, and the integral rigidity of the structure is improved, thereby ensuring the performance of an optical system.
The technical scheme of the utility model is as follows:
A reflective device for vertical optical path switching, characterized by: comprises a reflector seat, a reflector, a rotating mechanism and a rotation limiting mechanism;
The reflector seat is provided with two mutually perpendicular light incident surfaces and a light emergent surface perpendicular to the two light incident surfaces;
The reflecting mirror is rotatably arranged in the reflecting mirror seat, the longitudinal axis of the reflecting mirror is coincided with the body diagonal line of a regular cube formed according to the two light-in surfaces and the light-out surface of the reflecting mirror seat, one end of the reflecting mirror is provided with a supporting rotating shaft, and the other end of the reflecting mirror is provided with a fixed rotating shaft; the reflecting mirror supporting rotating shaft is sleeved with a aligning ball bearing, the aligning ball bearing is fixed on the reflecting mirror seat, and the tail end of the reflecting mirror supporting rotating shaft is screwed with a supporting bearing nut to tightly prop against the aligning ball bearing; two angular contact ball bearings are sleeved on the reflector fixing rotating shaft and are installed in a fixed bearing seat, the fixed bearing seat is fixedly installed on the reflector seat through screws, and a fixed bearing nut is screwed on the reflector fixing rotating shaft to tightly prop up the angular contact ball bearings in the fixed bearing seat;
The rotating mechanism comprises a half gear, a motor and a driving gear; the semi-gear comprises a semi-ring gear, gear teeth are arranged on the outer ring edge of the semi-ring gear, a sleeve is welded on one side face of the semi-ring gear, the sleeve is coaxial with the semi-ring gear, the sleeve is sleeved on the reflector fixing rotating shaft, a screw hole is formed in the sleeve, the sleeve is fixed with the reflector fixing rotating shaft through a screw hole penetrating through a setting position screw, and the tail end of the reflector fixing rotating shaft is screwed with a gear pressing ring to press the sleeve; the motor is fixed on the reflector seat through a motor seat, the driving gear is fixedly arranged at the end part of a rotating shaft of the motor, and the driving gear is meshed with the half gear;
the limiting mechanism comprises a limiting block, the limiting block is fixed on the reflector seat through a screw, one end of the limiting block is located between two ends of the semi-annular gear of the semi-gear, the end part of the semi-annular gear is blocked by the limiting block when the semi-gear rotates forward or backward by a certain amplitude, and the rotation range of the semi-gear is limited to 90 degrees through the limiting block.
The utility model can respectively reflect two vertical incident lights into the imaging component, meets the design requirement of an optical system, and has the following advantages compared with the common design form:
1. The space requirement is smaller and the weight is lighter;
2. the fixed form of the reflector is more stable, and the overall rigidity is high;
3. the assembly quality of the whole machine can be ensured by debugging before the assembly of the whole machine as an independent component;
4. The posture of the reflecting mirror surface can be finely adjusted through adjusting and correcting the structural member, so that the precision requirement of the optical system is met.
Drawings
FIG. 1 is a general form of a multi-path optical imaging system;
FIG. 2 is a schematic diagram of a typical reflective device for vertical optical path switching;
FIG. 3 is a schematic view of the overall structure of the present utility model;
FIG. 4 is a schematic structural view of a half gear;
FIG. 5 is a cross-sectional view A-A of FIG. 3;
FIG. 6 is a section B-B of FIG. 5;
FIG. 7 is a schematic diagram of a reflection device debugging structure of the present utility model.
Detailed Description
As shown in fig. 3, 4, 5 and 6, the reflecting device for switching the vertical light path provided by the utility model comprises a reflecting mirror seat, a reflecting mirror, a rotating mechanism and a rotation limiting mechanism;
The reflector seat 1 is provided with a first light incident surface and a second light incident surface which are perpendicular to each other, and a light emergent surface which is perpendicular to the two light incident surfaces;
The reflector 2 is rotatably arranged in the reflector seat, the longitudinal axis of the reflector 2 is coincident with the body diagonal line of a cube formed according to the two light-in surfaces and the light-out surface of the reflector seat, one end of the reflector 2 is provided with a supporting rotating shaft 3, and the other end of the reflector 2 is provided with a fixed rotating shaft 4; a self-aligning ball bearing 5 is sleeved on the reflector supporting rotating shaft 3, the self-aligning ball bearing 5 is fixed on the reflector seat 1, and the tail end of the reflector supporting rotating shaft 3 is in threaded connection with a supporting bearing nut 6 to tightly prop up the self-aligning ball bearing 5; two angular contact ball bearings 7 are sleeved on the reflector fixing rotating shaft 4, the two angular contact ball bearings 7 are installed in a fixed bearing seat 8, the fixed bearing seat 8 is fixedly installed on the reflector seat 1 through screws, and a fixed bearing nut 9 is screwed on the reflector fixing rotating shaft 4 to tightly prop up the angular contact ball bearings 7 in the fixed bearing seat 8;
The rotating mechanism comprises a half gear 10, a motor 11 and a driving gear 12; the structure of the half gear 10 is shown in fig. 4, and the half gear comprises a half ring gear 101, gear teeth are arranged on the outer ring edge of the half ring gear, a sleeve 102 is welded on one side surface of the half ring gear, the sleeve is coaxial with the half ring gear, the sleeve is sleeved on the reflector fixing rotating shaft, a screw hole 103 is arranged on the sleeve 102, the sleeve is fixed with the reflector fixing rotating shaft through a screw hole penetrating through a positioning screw, and a gear pressing ring 13 is screwed at the tail end of the reflector fixing rotating shaft 4 to press the sleeve; the motor 11 is fixed on the reflector seat 1 through a motor seat 14, the driving gear 12 is fixedly arranged at the end part of a rotating shaft of the motor 10, and the driving gear 12 is meshed with the half gear 10;
The limiting mechanism comprises a limiting block 15, the limiting block 15 is fixed on the reflector seat 1 through a screw, one end of the limiting block 15 is located between two ends of the semi-annular gear 101 of the semi-gear 10, when the semi-gear rotates forward or backward by a certain amplitude, the end of the semi-annular gear is blocked by the limiting block, and the rotation range of the semi-gear is limited to 90 degrees through the limiting block.
In the structure, the motor is controlled to rotate by the control system, the motor 11 can drive the half gear 10 to rotate forward and backward through the driving gear 12, the rotation range is 90 degrees, and the half gear 10 drives the reflecting mirror 2 to rotate; when the half gear 10 rotates forward to the point that one end contacts the limiting block 15, the limiting block 15 can not continue to rotate, and at the moment, the included angles between the reflecting mirror 2 and the first light incident surface and the included angles between the reflecting mirror 2 and the light emergent surface are all 45 degrees, so that the vertical refraction of the incident light of the first light incident surface to the light emergent surface can be realized; when the half gear 10 reversely rotates to the other end to contact with the limiting block 15, the limiting block 15 can not continue to rotate, and at the moment, the included angles between the reflecting mirror and the second light incident surface and the included angles between the reflecting mirror and the light emergent surface are 45 degrees, so that the vertical refraction of the incident light of the second light incident surface to the light emergent surface can be realized.
When the utility model is embodied, the photoelectric switch 16 can be arranged on the limiting block, when the half gear 10 rotates, the tail end of the half gear can trigger the photoelectric switch 16, when the half gear 16 rotates to be in contact with the limiting block, the tail end of the half gear rotates out of a triggering area of the photoelectric switch 16, and the photoelectric switch transmits an in-place signal back to the control system, so that the motor stops rotating, and double control of contact and non-release of the motor is realized.
The installation and debugging method of the reflecting device for switching the vertical light path is as follows:
(1) Installing and debugging a reflecting mirror:
the reflector 2 is placed in the reflector seat 1, the reflector fixing rotating shaft 4 is inserted into the angular contact ball bearing 7 in the fixed bearing seat 8, and the angular contact ball bearing is fastened by the screw-connection fixed bearing nut 9; inserting the reflector supporting rotating shaft 3 into the aligning ball bearing 5 and fastening by using a supporting bearing nut 6; the fixed bearing seat 8 is arranged on the reflector seat through two fixing screws, and the two fixing screws are not completely screwed up at first, so that the fixed bearing seat can do certain radial movement in the reflector seat;
As shown in fig. 7, the outgoing light of the reflector seat is provided with a debugging mirror 17 on the plane and is compressed by a debugging mirror pressing ring 18; placing the autocollimator on an incident light plane, adjusting the relative position of the autocollimator and the reflector seat, ensuring that the optical axis of the autocollimator is perpendicular to the incident light plane, rotating the reflector at the moment, adjusting a first fixing screw 19 of the fixing bearing seat 8 to ensure that the track of the light cross passes through the center of the debugging mirror when the track of the light cross in the view of the autocollimator is 45-degree oblique line which does not pass through the center of the debugging mirror; then, placing the autocollimator on the plane of the other incident light, adjusting the relative position of the autocollimator and the reflector seat, ensuring that the optical axis of the autocollimator is vertical to the plane of the incident light, rotating the reflector at the moment, adjusting a second fixing screw 20 of the fixing bearing seat to ensure that the track of the optical cross passes through the center of the debugging mirror when the track of the optical cross in the view of the autocollimator is 45-degree oblique line which does not pass through the center of the debugging mirror; at this time, the two fixing screws 19 and 20 of the fixing bearing housing 8 are completely tightened and checked to ensure that the light cross track in both directions still passes through the center of the circle.
(2) Mounting and debugging semi-gears and a rotation limiting mechanism:
A half gear 10 and a gear pressing ring 13 are arranged at the fixed rotating shaft end of the reflecting mirror; the limiting block 15 is arranged on the reflector seat through a screw, and the screw is not screwed up, so that the limiting block can translate to a certain extent in the direction parallel to the mounting surface;
The auto-collimator is placed in the direction of the first incident light, the relative position of the auto-collimator and the reflector seat is adjusted, the optical axis of the auto-collimator is guaranteed to be perpendicular to the plane of the first incident light, the reflector is rotated at the moment, the track of the light cross in the visual field of the auto-collimator is a 45-degree ray passing through the origin, and the position of the limiting block is adjusted, so that the origin of the ray coincides with the origin; then placing the autocollimator in the direction of the second incident light, adjusting the relative position of the autocollimator and the reflector seat, ensuring that the optical axis of the autocollimator is perpendicular to the plane of the second incident light, rotating the reflector at the moment, correcting the release surface of the limiting block 15 and the half gear 10, enabling the ray starting point to coincide with the origin in the visual field of the autocollimator, and completely fastening the fixing screw of the limiting block.
(3) And (3) installing a rotating mechanism: after the steps are finished, the motor is arranged on the reflector seat, the driving gear 12 is arranged at the shaft end of the motor and is meshed with the half gear 10, and the debugging process of the reflecting device is finished.
When the reflecting device is installed in the optical system in the follow-up process, the position and posture accuracy of the reflecting mirror in the optical system can be guaranteed only by ensuring that the light incident surface and the light emergent surface of the reflecting device are respectively and completely attached to the reserved reference plane in the system.
Claims (1)
1. A reflective device for vertical optical path switching, characterized by: comprises a reflector seat, a reflector, a rotating mechanism and a rotation limiting mechanism;
the reflector seat (1) is provided with two mutually perpendicular light incident surfaces and a light emergent surface perpendicular to the two light incident surfaces;
the reflecting mirror (2) is rotatably arranged in the reflecting mirror seat, the longitudinal axis of the reflecting mirror (2) is overlapped with the body diagonal line of a cube formed according to the two light-in surfaces and the light-out surface of the reflecting mirror seat, one end of the reflecting mirror (2) is provided with a supporting rotating shaft (3), and the other end of the reflecting mirror is provided with a fixed rotating shaft (4); a self-aligning ball bearing (5) is sleeved on the reflector supporting rotating shaft (3), the self-aligning ball bearing (5) is fixed on the reflector seat (1), and the tail end of the reflector supporting rotating shaft (3) is in threaded connection with a supporting bearing nut (6) to tightly prop against the self-aligning ball bearing (5); two angular contact ball bearings (7) are sleeved on the reflector fixing rotating shaft (4), the two angular contact ball bearings (7) are installed in a fixed bearing seat (8), the fixed bearing seat (8) is fixedly installed on the reflector seat (1) through screws, and a fixed bearing nut (9) is screwed on the reflector fixing rotating shaft (4) to tightly prop the angular contact ball bearings (7) in the fixed bearing seat (8);
The rotating mechanism comprises a half gear (10), a motor (11) and a driving gear (12); the semi-gear (10) comprises a semi-ring gear (101), gear teeth are arranged on the outer ring edge of the semi-ring gear, a sleeve (102) is welded on one side face of the semi-ring gear (101), the sleeve (102) is coaxial with the semi-ring gear (101), the sleeve (102) is sleeved on the reflector fixing rotating shaft (4), a screw hole (103) is formed in the sleeve (102), the sleeve is fixed with the reflector fixing rotating shaft through a set position screw penetrating through the screw hole (103), and a gear pressing ring (13) is screwed at the tail end of the reflector fixing rotating shaft (4) to press the sleeve (102); the motor (11) is fixed on the reflector seat (1) through a motor seat (14), the driving gear (12) is fixedly arranged at the end part of a rotating shaft of the motor, and the driving gear (12) is meshed with the half gear (10);
The limiting mechanism comprises a limiting block (15), the limiting block (15) is fixed on the reflector seat (1) through a screw, one end of the limiting block (15) is located between two ends of the semi-annular gear (101) of the semi-gear (10), when the semi-gear rotates forward or backward by a certain amplitude, the end part of the semi-annular gear (101) is blocked by the limiting block (15), and the rotation range of the semi-gear is limited to 90 degrees through the limiting block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322786420.4U CN220961996U (en) | 2023-10-17 | 2023-10-17 | Reflecting device for vertical light path switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322786420.4U CN220961996U (en) | 2023-10-17 | 2023-10-17 | Reflecting device for vertical light path switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961996U true CN220961996U (en) | 2024-05-14 |
Family
ID=91013090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322786420.4U Active CN220961996U (en) | 2023-10-17 | 2023-10-17 | Reflecting device for vertical light path switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961996U (en) |
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2023
- 2023-10-17 CN CN202322786420.4U patent/CN220961996U/en active Active
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