Integrated electric continuous zooming monocular video microscope

Abstract

The utility model relates to the technical field of macro camera shooting, in particular to an integrated electric continuous zoom monocular video microscope. The device comprises a monocular lens provided with a camera, the monocular lens comprises an outer lens cone used for adjusting the magnification and an inner lens cone, the device further comprises a motor, a driving mechanism and a control panel, the motor drives the outer lens cone to rotate through the driving mechanism so as to adjust the magnification of the monocular lens, and the control panel controls and is connected with the camera and the motor. According to the utility model, the original design is optimized again, the problems of mutual communication and control of all parts forming the single-tube video microscope are solved, the integration level of the single-tube video microscope is high, automatic application is convenient to realize, the overall cost is lower, and the whole single-tube video microscope is tidier and more beautiful due to the reduction of external cables and the overall design.

Description

Technical Field

[0001] The utility model relates to the technical field of macro photography, and specifically relates to an integrated electric continuously variable magnification single-tube video microscope. Background Art

[0002] The existing single-tube video microscopes are mainly composed of several parts - a camera, a single-tube lens, and a light source, which are independent components and often come from different manufacturers. When in use, it is necessary to adjust the camera parameters separately, manually rotate the single-tube lens to change the optical magnification, manually rotate the knob to adjust the light brightness, etc. The main defects are as follows:

[0003] (1) Since the camera, the single-tube lens, and the light source are independent components, they cannot communicate and control with each other, which brings trouble to the operation of the user. In the case of batch use, it is also very difficult to adjust multiple sets of single-tube video microscopes to the same parameters; since single-tube video microscopes are mostly used for the inspection of defects, scratches, colors, sizes, etc. of objects, the inconsistency of the parameters of each single-tube video microscope brings uncertainty to the consistency of batch inspection of the products to be inspected.

[0004] (2) The single-tube video microscope composed of independent components has many and complicated power cords, interconnecting wires, etc. of its own, which does not meet the 5S requirements of modern enterprises. Moreover, more importantly, the optical magnification of the lens basically needs to be adjusted by manual rotation, and it is very difficult to integrate it into a modern automated production line. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the existing technology, the utility model provides an integrated electric continuously variable magnification single-tube video microscope, which is characterized by no need for manual adjustment and realizes automated application.

[0007] (II) Technical Solutions

[0008] An integrated electric continuously variable magnification single-tube video microscope includes a single-tube lens equipped with a camera assembly. The single-tube lens includes an outer lens barrel and an inner lens barrel for adjusting the magnification. Further, it also includes a motor, a driving mechanism, and a control board. The motor drives the outer lens barrel to rotate through the driving mechanism to adjust the magnification of the single-tube lens, and the control board is connected to the camera assembly and the motor for control.

[0009] Preferably, the driving mechanism includes a driving gear, a driven gear, and a large gear of the outer lens barrel. The output shaft of the motor is provided with the driving gear, and the driving gear drives the large gear of the outer lens barrel to rotate through the driven gear to adjust the magnification of the single-tube lens.

[0010] Preferably, it further includes a position detection sensor connected to the control board. A detection tab is provided on the outer lens barrel, and the movement track of the detection tab passes through the position detection sensor.

[0011] Preferably, it further includes a multi-zone light source connected to the control board, and the multi-zone light source is provided at the front end of the single-lens barrel.

[0012] Preferably, the camera assembly is an image sensor.

[0013] Preferably, it further includes a lens group movement pin. A curve groove is provided on the outer lens barrel, and a straight groove is provided on the inner lens barrel. When the outer lens barrel rotates, the lens group movement pin is driven by the curve groove to move along the straight groove of the inner lens barrel to magnify or reduce the optical magnification.

[0014] Preferably, the motor is a stepping reduction motor, and an interface circuit is provided on the control board.

[0015] Preferably, the upper limit of the angular stroke of the rotation of the outer lens barrel is 300 - 340 degrees.

[0016] Preferably, the multi-zone light source is composed of multiple groups of lamp modules with independently controlled brightness, and each lamp module is composed of multiple or single LEDs.

[0017] Preferably, it further includes a rear cover plate, and the camera assembly, the single-lens barrel, the control board, and the multi-zone light source are fixed by the rear cover plate.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present utility model provides a new type of integrated electric continuously variable single-tube video microscope. This product re-optimizes the original design, solves the problems of mutual communication and control of the components constituting the single-tube video microscope, makes the single-tube video microscope have a high integration degree, is convenient for realizing automated applications, and also makes the overall cost lower. The reduction of external cables and the overall design make the single-tube video microscope more tidy and beautiful as a whole. Description of the Drawings

[0020] Figure 1 It is a partial structural schematic diagram of this product;

[0021] Figure 2 is Figure 1 a partial cross-sectional view of;

[0022] Figure 3 It is a partial schematic diagram of the outer lens barrel and its inner lens barrel of this product;

[0023] Figure 4 is Figure 1 a bottom view of;

[0024] Figure 5 isFigure 1 Stereogram;

[0025] Figure 6 Schematic diagram of installing the rear cover plate for this product;

[0026] Figure 7 Circuit diagram of the comprehensive processing part of this product;

[0027] Figure 8 Circuit diagram of the zoom motor drive and position detection part of this product.

[0028] Label description: 1. Camera component; 2. Monocular lens; 21. Outer lens barrel; 22. Inner lens barrel; 23. Lens group movement pin; 24. Curved groove; 25. Straight groove; 3. Motor; 4. Driving mechanism; 41. Driving gear; 42. Driven gear; 43. Outer lens barrel large gear; 44. Detection flap; 5. Control board; 6. Position detection sensor; 7. Multi-zone light source; 8. Interface circuit; 9. Rear cover plate. Specific implementation mode

[0029] The following further elaborates on the present utility model in conjunction with the attached drawings, where the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0031] Design concept: Design a new type of monocular video microscope that can drive the outer barrel of the monocular lens to rotate through controlling the rotation of the motor to achieve optical zoom, can detect the rotation angle of the outer lens barrel of the monocular lens through an optoelectronic position sensor to achieve precise control of the optical magnification, and can also achieve the best lighting effect by respectively controlling the brightness of the multi-zone light source.

[0032] Embodiment:

[0033] As Figures 1-8As shown in the figure, the technical solution provided by the present utility model is an integrated electric continuously variable magnification single-tube video microscope, which includes a single-tube lens 2 equipped with a camera assembly 1. The single-tube lens 2 includes an outer lens barrel 21 for adjusting the magnification and an inner lens barrel 22. The camera assembly 1 in this embodiment is composed of a control board 5, a focusing mechanism and an image sensor. Among them, the focusing mechanism can also be a fixed-focus mechanism, that is, it can realize the functions of an intelligent focusing camera or a fixed-focus camera. The camera assembly 1 can be a completely independent camera or one of the components in multiple camera parts. Further, it also includes a motor 3, a driving mechanism 4 and a control board 5. The motor 3 is a stepping reduction motor. The motor 3 drives the outer lens barrel 21 to rotate through the driving mechanism 4 to adjust the magnification of the single-tube lens 2. The upper limit of the angular stroke of the rotation of the outer lens barrel 21 is 300-340 degrees, and generally the upper limit is about 320 degrees. The control board 5 is controlled to connect the camera assembly 1 and the motor 3, and an interface circuit 8 is provided on the control board 5 for data transmission. The main control board of the control board 5 of this product uses Hi3519DV500 as the main chip.

[0034] The driving mechanism 4 in this embodiment includes a driving gear 41, a driven gear 42 and an outer lens barrel large gear 43. The output shaft of the motor 3 is provided with the driving gear 41, and the driving gear 41 drives the outer lens barrel large gear 43 to rotate through the driven gear 42 to adjust the magnification of the single-tube lens 2.

[0035] This embodiment also includes a position detection sensor 6 connected to the control board 5. A detection tab 44 is provided on the outer lens barrel 21, and the movement trajectory of the detection tab 44 passes through the position detection sensor 6.

[0036] This embodiment also includes a multi-zone light source 7 connected to the control board 5. The multi-zone light source 7 is provided at the front end of the single-tube lens 2. The multi-zone light source 7 is composed of multiple groups of lamp modules with independently controlled brightness, and each lamp module is composed of multiple or single LEDs.

[0037] The single-tube lens 2 in this embodiment also includes a lens group motion pin 23. The outer lens barrel 21 is provided with a curve groove 24, and the inner lens barrel 22 is provided with a straight groove 25. When the outer lens barrel 21 rotates, the lens group motion pin 23 is driven by the curve groove 24 to move along the straight groove 25 of the inner lens barrel 22 to magnify or reduce according to the optical magnification.

[0038] This embodiment also includes a rear cover 9. The camera assembly 1, the single-tube lens 2, the control board 5 and the multi-zone light source 7 are fixed by the rear cover 9.

[0039] Working principle and functions:

[0040] To achieve the above object, the technical solution adopted by this product is that the motor 3 is connected to the driving gear 41. The driving gear 41 drives the driven gear 42, and the driven gear 42 then drives the large outer barrel gear 43 sleeved on the outer barrel 21 of the single barrel lens 2, thereby driving the rotation of the outer barrel 21 of the single barrel lens 2. A curve groove 24 is formed on the outer barrel 21 of the single barrel lens 2, which can drive two groups of lens groups to move up and down simultaneously according to the optical design. In cooperation with the straight groove 25 and the lens group movement pin 23 on the inner barrel 22 of the single barrel lens 2, the two groups of lens groups inside can be strictly magnified or reduced according to the optical magnification.

[0041] At the same time, a detection tab 44 for detecting the rotation position is installed on the outer barrel 21 of the single barrel lens 2. When the tab blocks the photoelectric position sensor (i.e., the position detection sensor 6), it will continuously send a high-level signal to the system. When the detection tab 44 does not block the photoelectric position sensor, it will continuously send a low-level signal to the system. The system uses the jump of the high and low level signals sent by the photoelectric position sensor when the detection tab 44 blocks and does not block to determine whether it is currently at the "origin" position of the rotation of the outer barrel 21. (The origin refers to the artificially specified optical magnification as the reference position, and all other optical magnifications are obtained by rotating the outer barrel 21 left and right based on this). Since a stepper reduction motor is used, the angular stroke of the entire rotation of the outer barrel 21 is about 320 degrees (corresponding to the change in the optical magnification of the lens being 0.7 times to 5.0 times, corresponding to about 3000 steps of the stepper motor 3). Therefore, the change in the optical magnification can be very fine, and the change in the optical magnification corresponding to each step of the motor 3 is about 0.0015 times.

[0042] The introduction of the built-in multi-zone light source 7 (the multi-zone light source means that the entire lighting part consists of multiple groups of lamp modules with independently controllable brightness, and each lamp module consists of multiple or single LEDs) improves the lighting effect while greatly reducing the cost. Compared with the light source that currently uses a hand-twisted knob to adjust the brightness as a whole for single-barrel video microscopes, using multi-zone separate brightness adjustment can avoid problems such as local overexposure or underexposure caused by too large a contrast between the brightness and darkness of some objects, and can also adjust and set the combined lighting methods of different brightness and darkness of multiple groups of light sources, which cannot be achieved with the currently manually adjusted brightness light sources. In addition, the multi-zone light source 7 of this product, the built-in multi-zone brightness adjustment device and most of the components such as the power supply and control chip of the system camera part are shared, making the cost greatly reduced compared with an independent multi-zone light source.

[0043] With the above-mentioned electric continuous ultra-fine magnification change method, position detection device and programmed multi-zone light source, it is possible to achieve "calibration-free measurement" of the target object, real-time display of the magnification, and enable the object to be detected to be displayed in front of the user with appropriate brightness, etc. ("Calibration-free measurement" is in contrast to the current measurement method of single-tube video microscopes, which can only use a standard ruler to calibrate the reference size at the current optical magnification before measurement. Once there is any change in the optical magnification, it is necessary to recalibrate before measurement, which is relatively cumbersome.) It is also possible to programmatically set multiple optical magnifications and different combinations of brightness of the multi-zone light source to detect and measure the same target object, so as to improve the efficiency, consistency and automation level during the flow detection operation.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated electric continuously variable magnification single-tube video microscope, comprising a single-tube lens equipped with a camera assembly, the single-tube lens including an outer lens barrel and an inner lens barrel for adjusting the magnification, characterized in that: It also includes a motor, a driving mechanism, and a control board. The motor drives the outer lens barrel to rotate through the driving mechanism to adjust the magnification of the single-lens camera, and the control board is connected to the camera assembly and the motor for control.

2. The integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: The driving mechanism includes a driving gear, a driven gear, and an outer lens barrel large gear. The output shaft of the motor is provided with the driving gear, and the driving gear drives the outer lens barrel large gear to rotate through the driven gear in a meshing manner to adjust the magnification of the single-lens camera.

3. The integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: It also includes a position detection sensor connected to the control board. A detection tab is provided on the outer lens barrel, and the movement trajectory of the detection tab passes through the position detection sensor.

4. The integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: It also includes a multi-zone light source connected to the control board, and the multi-zone light source is provided at the front end of the single-lens camera.

5. An integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: The camera assembly is an image sensor.

6. The integrated electric continuously variable magnification single-tube video microscope according to claim 1, wherein: It also includes a lens group movement pin. A curve groove is provided on the outer lens barrel, and a straight groove is provided on the inner lens barrel. When the outer lens barrel rotates, the curve groove drives the lens group movement pin to move along the straight groove of the inner lens barrel to magnify or reduce according to the optical magnification.

7. An integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: The motor is a stepping reduction motor, and an interface circuit is provided on the control board.

8. An integrated electric continuously variable magnification single-tube video microscope according to claim 1, characterized in that: The upper limit of the angular stroke of the rotation of the outer lens barrel is 300 - 340 degrees.

9. The integrated electric continuously variable magnification single-tube video microscope according to claim 4, characterized in that: The multi-zone light source is composed of multiple groups of lamp modules with independently controlled brightness, and each lamp module is composed of multiple or single LEDs.

10. An integrated electric continuously variable magnification single-tube video microscope according to claim 4, characterized in that: It also includes a rear cover plate, and the camera assembly, the single-lens camera, the control board, and the multi-zone light source are fixed through the rear cover plate.

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