Adjustable microscopic image decentration correction interface device

Abstract

The present application relates to a kind of adjustable microscopic image eccentricity correction interface device, including C interface, conical seat, fixed ring and adjusting ring;Wherein: fixed ring and adjusting ring are threadedly connected, and conical seat and C interface are clamped in its interval to form a whole in axial direction;And the eccentric small round mouth of the lower end of conical seat is nested with the upper end of adjusting ring, the outer spread eccentric ring of the lower end of adjusting ring is nested with C interface, the rotation of conical seat is by the relative rotation of the eccentric small round mouth and the outer spread eccentric ring of adjusting ring, the eccentricity of the optical axis of camera and microscope is steplessly regulated, the eccentric direction is arbitrarily adjustable, the orientation of display image is relative to the direction of microscopic field image arbitrarily adjustable, the structure of adjusting interface is simplified, and the operation difficulty is reduced.

Description

Technical fields:

[0001] This invention belongs to the field of optical equipment interface accessories, and specifically relates to an adjustable microscopic image eccentricity correction interface device, which can conveniently adjust the image position of the display. Background technology:

[0002] Currently, in various types of microscopic systems, the optical axis of the camera connected to the image interface and the optical axis of the microscopic optical path are usually not guaranteed to be completely coaxial. This results in the center of the image displayed on the monitor being out of sync with the center of the field of view of the microscopic optical path. Existing center error correction devices adjust the state of the prism in the image interface optical path to ensure that the optical axis of the camera is coaxial with the optical axis of the microscopic optical path. This adjustment mechanism requires moving the prism in the beam splitter optical path, which is complex in structure and difficult to operate. Summary of the Invention:

[0003] The purpose of this invention is to design an adjustable microscopic image eccentricity correction interface device that utilizes the relative rotation of two nested eccentric parts to form a coaxiality adjustment.

[0004] The technical solution of this invention is implemented as follows:

[0005] An adjustable microscopic image eccentricity correction interface device includes a C-interface, a conical seat, a fixing ring, and an adjusting ring; characterized in that:

[0006] The C interface has an external thread and a circular flare at the bottom, which is used to rotate and connect to the front of the camera lens to form a positioning.

[0007] The conical seat has a large circular opening at the top and an eccentric small circular opening at the bottom, with a stepped surface formed at the bottom of the large circular opening; the conical seat rests against the upper surface of the C-interface by means of the lower end surface, and the outer conical surface can be clamped by a quick-release connector to form a quick-connect structure with the microscope end.

[0008] The retaining ring has an outer ring at the upper end and an external thread section at the lower end, and rests against the stepped surface of the conical seat with the help of the outer ring;

[0009] The adjusting ring has an internal thread at its upper end that can rotatably connect with the external thread section of the fixed ring, and an outwardly eccentric ring at its lower end. This outwardly eccentric ring is nested inside the circular flare of the C-interface, while the upper end of the adjusting ring is nested inside the eccentric small circular opening of the tapered seat.

[0010] The stepped surface at the bottom of the conical seat is recessed, forming an inner ring between the large circular opening and the eccentric small circular opening. This inner ring is positioned between the outer ring of the fixed ring and the top of the adjusting ring.

[0011] The end face of the retaining ring is provided with two or more screw holes and is equipped with a set screw, which can abut against the stepped surface of the conical seat to lock the position of the retaining ring and the conical seat.

[0012] The fixed ring and the upper end face of the conical seat are both provided with graduation lines.

[0013] A wave spring is provided between the C interface and the axial contact surface of the outer eccentric ring of the adjustment ring to eliminate axial fit clearance and provide adjustment damping.

[0014] The conical base and adjustment ring of this invention adopt an eccentric nested fit to realize stepless adjustment of the eccentricity between the camera and the optical axis of the microscope optical path, arbitrary adjustment of the eccentricity direction, and arbitrary adjustment of the display image orientation relative to the field of view image direction of the microscope optical path. This simplifies the structure of the adjustment interface and reduces the difficulty of operation. Attached image description:

[0015] The invention will be further described below with reference to specific figures:

[0016] Figure 1 Schematic diagram of an adjustable microscopic image eccentricity correction interface device

[0017] Figure 2 Schematic diagram of a cross-section of an adjustable microscopic image eccentricity correction interface device

[0018] Figure 3 Analytical view of the adjustable microscopic image eccentricity correction interface device

[0019] Figure 4 Exploded view of the adjustable microscopic image eccentricity correction interface device

[0020] in

[0021] 1—C interface; 11—circular flare; 2—conical seat; 21—large circular opening.

[0022] 22—Eccentric small round opening 23—Stepped surface 24—Inner ring 3—Fixing ring

[0023] 31—Outer ring; 4—Adjusting ring; 41—Outer eccentric ring; 5—Wave spring

[0024] 6—Set screw; 7—Index marks Detailed implementation method:

[0025] Reference Figures 1 to 4 An adjustable microscopic image eccentricity correction interface device includes a C-interface 1, a conical seat 2, a fixing ring 3, an adjusting ring 4, a wave spring 5, and a set screw 6; wherein:

[0026] The C-interface 1 has a circular flare 11 at the lower end and external threads. The circular flare 11 provides a radial mating surface and an axial contact surface. It is rotated and connected to the front end of the camera lens by means of the external threads to form a positioning. The external threads of the C-interface 1 are standard interfaces, that is, for connecting to the imaging equipment end.

[0027] The conical seat 2 has a large circular opening 21 at the upper end and an eccentric small circular opening 22 at the lower end. A stepped surface 23 is formed at the bottom of the large circular opening 21, and the stepped surface 23 is recessed, forming an inner ring 24 between the large circular opening 21 and the eccentric small circular opening 22. The conical seat 2 rests against the upper surface of the C interface 1 by means of the lower end surface, and the outer conical surface can be clamped by a quick-release connector to form a quick-connect structure with the microscope end.

[0028] The fixed ring 3 has an outer ring 31 at the upper end and an external thread section at the lower end that can be connected to the adjusting ring 4. It rests on the stepped surface 23 of the tapered seat with the help of the outer ring 31.

[0029] The adjusting ring 4 has an internal thread at its upper end that allows it to rotatably connect with the external threaded section of the fixed ring 3, and an outwardly eccentric ring 41 at its lower end. This outwardly eccentric ring 41 is nested within the circular flared opening 11 of the C-interface. The upper end of the adjusting ring 4 is nested within the eccentric small circular opening 22 of the conical seat, and its apex is blocked from the outwardly eccentric ring 31 of the fixed ring by an inner ring 24, thus providing both isolation and clamping of the conical seat 2. By rotating the conical seat 2, the axial relationship between the adjusting ring 4, the C-interface 1, and the fixed ring 1 can be changed.

[0030] Wave spring 5 is disposed between the C interface 1 and the axial contact surface of the outer eccentric ring 41 of the adjustment ring to eliminate axial fit clearance and provide adjustment damping.

[0031] Two or more screw holes 32 are provided on the end face of the retaining ring 3, and a set screw 6 is provided. The set screw 6 can abut against the stepped surface 23 of the conical seat to lock the position of the retaining ring 3 and the conical seat 2. That is, when the coaxiality is adjusted to the correct position, it can be locked by the set screw 6. Two to four set screws 6 are sufficient, but three are preferred.

[0032] Furthermore, in order to achieve precise adjustment and adjustment reference, graduation lines 7 are provided on the circumference of the upper end face of the fixed ring 3 and the conical seat 2.

[0033] The adjustment operation principle is as follows:

[0034] according to Figure 2Following the structural relationship, the conical seat 2, C-interface 1, and wave spring 5 are sequentially fitted onto the fixing ring 3. Then, the internal thread of the adjusting ring 4 is coated with adhesive and tightened onto the fixing ring 3. Based on the eccentricity between the optical axis of the microscope optical path and the optical axis of the camera, the relative position of the conical seat 2 and the adjusting ring 4 is adjusted so that their eccentricity is the same as that of the optical axis of the microscope optical path and the optical axis of the camera. Then, the set screw 6 on the end face of the fixing ring 3 is tightened to lock the adjusting ring 4, the conical seat 2, and the fixing ring 3, fixing the relative position of the adjusting ring 4 and the conical seat 2. Finally, the device is placed into the microscope base. Based on the eccentricity direction between the optical axis of the microscope optical path and the optical axis of the camera, the device is rotated within the microscope system base. The device is then aligned with the microscopic image interface 1, making its eccentricity direction opposite to that between the optical axis of the microscope optical path and the optical axis of the camera. This corrects the eccentricity and makes the camera optical axis coaxial with the optical axis of the microscope optical path. Then, the C-interface 1 is rotated to make the image direction of the display the same as the image direction in the field of view of the microscope optical path. Finally, the locking screw on the microscope system interface seat, which is perpendicular to the axis of the conical seat 2, is tightened onto the conical surface of the conical seat 2, fixing the device to the microscope system. At the same time, the axial force generated by the contact between the locking screw head and the conical surface pulls and fixes the fixing ring 3, adjusting ring 4, wave spring 5 and C-interface 1 to the flange surface of the microscope image interface seat, thus completing the microscope image eccentricity correction operation.

Claims

1. An adjustable microscopic image eccentricity correction interface device, comprising a C-interface, a conical seat, a fixing ring, and an adjusting ring; characterized in that: The C interface has an external thread and a circular flare at the bottom, which is used to rotate and connect to the front of the camera lens to form a positioning. The conical seat has a large circular opening at the top and an eccentric small circular opening at the bottom, with a stepped surface formed at the bottom of the large circular opening; the conical seat rests against the upper surface of the C-interface by means of the lower end surface, and the outer conical surface can be clamped by a quick-release connector to form a quick-connect structure with the microscope end. The retaining ring has an outer ring at the upper end and an external thread section at the lower end, and rests against the stepped surface of the conical seat with the help of the outer ring; The adjusting ring has an internal thread at its upper end that can be rotatably connected to the external thread section of the fixed ring, and an outwardly eccentric ring at its lower end. The outwardly eccentric ring is nested in the circular flare of the C interface, while the upper end of the adjusting ring is nested in the eccentric small circular opening of the tapered seat. A wave spring is provided between the C interface and the axial contact surface of the outward eccentric ring of the adjustment ring to eliminate axial fit clearance and provide adjustment damping.

2. The adjustable microscopic image eccentricity correction interface device according to claim 1, characterized in that: The stepped surface at the bottom of the conical seat is recessed, forming an inner ring between the large circular opening and the eccentric small circular opening. This inner ring is positioned between the outer ring of the fixed ring and the top of the adjusting ring.

3. An adjustable microscopic image eccentricity correction interface device according to claim 1 or 2, characterized in that: The end face of the retaining ring is provided with two or more screw holes and is equipped with a set screw, which can abut against the stepped surface of the conical seat to lock the position of the retaining ring and the conical seat.

4. The adjustable microscopic image eccentricity correction interface device according to claim 3, characterized in that: Grading lines are provided on the circumference of the upper end face of both the fixing ring and the conical seat.

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