CN209928112U - Two-gear zooming device with focusing function - Google Patents
Two-gear zooming device with focusing function Download PDFInfo
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- CN209928112U CN209928112U CN201920711997.XU CN201920711997U CN209928112U CN 209928112 U CN209928112 U CN 209928112U CN 201920711997 U CN201920711997 U CN 201920711997U CN 209928112 U CN209928112 U CN 209928112U
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Abstract
The patent discloses a two grades of zoom devices that possess focusing function. The lens subassembly is installed on right slider linear guide and left slider linear guide, and the flange mounting nut of outside drive formula linear stepping motor is installed in the mirror group installation slider seat nut mounting hole of lens subassembly, and outside drive formula linear stepping motor can drive the lens subassembly back-and-forth movement, and micro-gap switch carries out position feedback when the lens subassembly moves long burnt and short burnt position. This patent is rational in infrastructure, simple, compact, adopts to realize two grades simultaneously and zoom and focusing function based on slider type linear guide location, and is with low costs, and convenient to use adopts micro-gap switch to make control simple as the feedback, and the image quality is high.
Description
Technical Field
The patent relates to a two grades of zoom devices, concretely relates to two grades of zoom devices that possess the focusing function based on slider type linear guide.
Background
The two-gear zooming device is an optical device which is arranged in an optical imaging device and utilizes the movement of an infrared lens group of an optical system to change the combined focal length of the optical system through switching between a long focus position and a short focus position.
Disclosure of Invention
The purpose of this patent is to overcome current shortcoming, provide a compact structure, control is simple, with low costs based on two grades of zoom devices that possess the focusing function of slider type linear guide, be applicable to the various optical imaging equipment that need two grades of zooms, the precision of zooming is high and can realize auto-lock under the high vibration environment, can realize the equipment focusing function under the different temperatures simultaneously, be more suitable for ripe market ization to use and scientific research use, realize the high-quality demand of two grades of zooms of high accuracy formation of image.
In order to achieve the purpose, the following technical scheme is adopted in the patent:
a two-gear zoom device with a focusing function comprises a base assembly 1 and a lens assembly 2; the method is characterized in that:
the base component 1 comprises a base 1-1, a right slider linear guide rail 1-2, a left slider linear guide rail 1-3, a motor installation limiting seat 1-4, an external drive type linear stepping motor 1-5, a front microswitch installation seat 1-6, a front microswitch 1-7, a rear microswitch installation seat 1-8, a rear microswitch 1-9, a left limiting part 1-10 and a right limiting part 1-11; the structure is as follows: the upper end of the base 1-1 is provided with a left guide rail mounting surface and a right guide rail mounting surface which are coplanar, the guide rail of the right slider linear guide rail 1-2 is fixedly mounted on the right guide rail mounting surface of the base 1-1 through a screw, and the guide rail of the left slider linear guide rail 1-3 is fixedly mounted on the left guide rail mounting surface of the base 1-1 through a screw; the motor installation limiting seat 1-4 is fixedly connected with the front end face of the base 1-1 through a screw, a screw shaft of the external driving type linear stepping motor 1-5 is sleeved with a flange installation nut, and the external driving type linear stepping motor 1-5 is fixedly connected with the motor installation limiting seat 1-4 through a screw; the front microswitch mounting seat 1-6 is fixedly mounted at the front part of the right side of the base 1-1 through a screw, and the front microswitch 1-7 is fixedly connected with the front microswitch mounting seat 1-6 through a screw; the rear microswitch mounting seat 1-8 is fixedly mounted at the rear part of the left side of the base 1-1 through a screw, and the rear microswitch 1-9 is fixedly connected with the rear microswitch mounting seat 1-8 through a screw; the left limiting part 1-10 is fixedly connected with the rear end face of the left side of the base 1-1 through a screw, and the right limiting part 1-11 is fixedly connected with the rear end face of the right side of the base 1-1 through a screw.
The lens component 2 comprises a lens group installation sliding block seat 2-1, a zoom lens group 2-2, a right microswitch pressing piece 2-3 and a left microswitch pressing piece 2-4; the structure is as follows: the center of the lens group installation sliding block seat 2-1 is provided with a nut installation hole, and the lower end is provided with a left sliding block installation surface and a right sliding block installation surface which are coplanar; an optical zoom lens is arranged in a center hole of the zoom lens group 2-2, and the zoom lens group 2-2 is fixedly arranged in an installation groove at the upper end of the lens group installation sliding block seat 2-1 through a screw; the right microswitch pressing piece 2-3 is fixedly arranged on the right side of the lens group installation sliding block seat 2-1 through a screw, and the left microswitch pressing piece 2-4 is fixedly arranged on the left side of the lens group installation sliding block seat 2-1 through a screw.
The lens group installation slide block seat 2-1 of the lens component 2 is fixedly connected with a slide block of a right slide block linear guide rail 1-2 of the base component 1 through a screw, the lens group installation slide block seat 2-1 of the lens component 2 is fixedly connected with a slide block of a left slide block linear guide rail 1-3 of the base component 1 through a screw, and a flange installation nut of an external drive type linear stepping motor 1-5 of the base component 1 is fixedly installed in a nut installation hole of the lens group installation slide block seat 2-1 of the lens component 2 through a screw; an external driving type linear stepping motor 1-5 of the base component 1 can drive the lens component 2, a slide block of a right slide block linear guide rail 1-2 of the base component 1 and a slide block of a left slide block linear guide rail 1-3 of the base component 1 to move back and forth, when a zoom lens group 2-2 of the lens component 2 moves to a long focus position of an optical imaging device optical system, a right microswitch pressing piece 2-3 of the lens component 2 is contacted with a front microswitch 1-7 of the base component 1, and a contact of the front microswitch 1-7 is pressed down; when the zoom lens group 2-2 of the lens component 2 moves to the short focus position of the optical imaging equipment optical system, the left microswitch pressing piece 2-4 of the lens component 2 is contacted with the rear microswitch 1-9 of the base component 1, and the contact of the rear microswitch 1-9 is pressed down.
The patent also provides a control method of the two-gear zoom device with the focusing function, which comprises the following steps:
1) starting an external driving type linear stepping motor 1-5 of the base assembly 1, enabling the lens assembly 2 to move forwards through transmission of a flange mounting nut of the external driving type linear stepping motor 1-5, stopping the movement of the lens assembly 2 when the front end surface of a lens group mounting slide block seat 2-1 of the lens assembly 2 is contacted with a motor mounting limiting seat 1-4 of the base assembly 1, blocking the rotation of the external driving type linear stepping motor 1-5, increasing the working current, stopping the driving of the external driving type linear stepping motor 1-5 in a short time, and recording the position of the lens assembly 2 as an initial position;
2) starting an external driving type linear stepping motor 1-5 of the base assembly 1, driving the lens assembly 2 to move backwards, when a right microswitch pressing piece 2-3 of the lens assembly 2 is contacted with a front microswitch 1-7 of the base assembly 1, a contact of the front microswitch 1-7 is pressed down, the front microswitch 1-7 sends an electric signal, at the moment, the external driving type linear stepping motor 1-5 is stopped from driving, a zoom lens assembly 2-2 of the lens assembly 2 is in a long-focus position, and an optical system can carry out long-focus imaging;
3) when the position of the focal plane of the optical system is changed due to temperature change in the long-focus imaging process, starting an external driving linear stepping motor 1-5 of the base assembly 1, driving the lens assembly 2 to move back and forth, and enabling the focal plane of the optical system to return to the position before the temperature change, so that the long-focus imaging focusing function is realized;
4) starting an external driving type linear stepping motor 1-5 of the base assembly 1, driving the lens assembly 2 to move backwards, when a left microswitch pressing piece 2-4 of the lens assembly 2 is contacted with a rear microswitch 1-9 of the base assembly 1, a contact of the rear microswitch 1-9 is pressed down, the rear microswitch 1-9 sends an electric signal, at the moment, the external driving type linear stepping motor 1-5 is stopped from driving, a zoom lens assembly 2-2 of the lens assembly 2 is in a short-focus position, and an optical system can perform short-focus imaging;
5) when the position of the focal plane of the optical system is changed due to temperature change in the short-focus imaging process, starting an external driving linear stepping motor 1-5 of the base assembly 1, driving the lens assembly 2 to move back and forth, so that the focal plane of the optical system returns to the position before the temperature change, and realizing the focusing function of short-focus imaging;
6) and (5) repeatedly executing the steps 1) to 5) to realize the two-gear zooming switching and focusing functions of the zooming device.
The two-gear zooming device with the focusing function, provided with the zooming lens, is arranged at the zooming position of an optical system of the optical imaging equipment through a screw, the lens assembly 2 of the two-gear zooming device is controlled to move according to the control method provided by the patent, so that the two-gear zooming switching and focusing functions can be realized, and in the moving process, the motor of the base assembly 1 is provided with the limiting seats 1-4, the left limiting parts 1-10 and the right limiting parts 1-11 to mechanically limit the movement of the lens assembly 2, so that the movement of the lens assembly 2 is prevented from exceeding a preset stroke.
This patent has following advantage: this patent is rational in infrastructure, it is simple, compact, the reliability is high, it is easy to make, simple installation, adopt to realize simultaneously that two grades zoom and focusing function based on slider type linear guide location, it is with low costs, high durability and convenient use, be suitable for various optical imaging equipment that need two grades to zoom and focus under the different temperatures to use, adopt micro-gap switch to make control simple as the feedback, and owing to adopt the outside drive formula linear stepping motor that has ball screw mechanism as the drive can realize the mechanism auto-lock under the complicated vibration environment, the imaging quality is high.
Drawings
FIG. 1 is a schematic diagram of the general structure of one embodiment of the present patent.
Fig. 2 is a schematic view of the general structure of the base assembly 1 of one embodiment of the present patent.
Fig. 3 is a schematic view of the general structure of the lens assembly 2 of one embodiment of this patent.
FIG. 4 is a schematic diagram of the overall structure of one embodiment of the present patent in the tele state.
FIG. 5 is a schematic diagram of the overall configuration of an embodiment of the present patent in a short focus state.
Detailed Description
A preferred embodiment of this patent is given below in conjunction with the accompanying drawings, which mainly illustrate the features of this patent in further detail, and not to limit the scope of this patent:
referring to fig. 1, the two-gear zoom apparatus with a focusing function includes a base assembly 1 and a lens assembly 2; the method is characterized in that:
referring to fig. 2, a base assembly 1 comprises a base 1-1, a right slider linear guide rail 1-2, a left slider linear guide rail 1-3, a motor installation limiting seat 1-4, an external drive type linear stepping motor 1-5, a front microswitch installation seat 1-6, a front microswitch 1-7, a rear microswitch installation seat 1-8, a rear microswitch 1-9, a left limiting part 1-10 and a right limiting part 1-11; the structure is as follows: the upper end of the base 1-1 is provided with a left guide rail mounting surface and a right guide rail mounting surface which are coplanar, the guide rail of the right slider linear guide rail 1-2 is fixedly mounted on the right guide rail mounting surface of the base 1-1 through a screw, and the guide rail of the left slider linear guide rail 1-3 is fixedly mounted on the left guide rail mounting surface of the base 1-1 through a screw; the motor installation limiting seat 1-4 is fixedly connected with the front end face of the base 1-1 through a screw, a flange installation nut is sleeved on a screw shaft of the external driving type linear stepping motor 1-5, and the external driving type linear stepping motor 1-5 is fixedly connected with the motor installation limiting seat 1-4 through a screw; the front microswitch mounting seat 1-6 is fixedly mounted at the front part of the right side of the base 1-1 through a screw, and the front microswitch 1-7 is fixedly connected with the front microswitch mounting seat 1-6 through a screw; the rear microswitch mounting seat 1-8 is fixedly mounted at the rear part of the left side of the base 1-1 through a screw, and the rear microswitch 1-9 is fixedly connected with the rear microswitch mounting seat 1-8 through a screw; the left limiting piece 1-10 is fixedly connected with the rear end face of the left side of the base 1-1 through a screw, and the right limiting piece 1-11 is fixedly connected with the rear end face of the right side of the base 1-1 through a screw.
Referring to fig. 3, the lens assembly 2 comprises a lens group mounting slider base 2-1, a zoom lens group 2-2, a right microswitch pressing piece 2-3 and a left microswitch pressing piece 2-4; the structure is as follows: the center of the lens group installation sliding block seat 2-1 is provided with a nut installation hole, and the lower end is provided with a left sliding block installation surface and a right sliding block installation surface which are coplanar; an optical zoom lens is arranged in a center hole of the zoom lens group 2-2, and the zoom lens group 2-2 is fixedly arranged in an installation groove at the upper end of the lens group installation sliding block seat 2-1 through a screw; the right microswitch casting die 2-3 is fixedly arranged on the right side of the lens group installation sliding block seat 2-1 through screws, and the left microswitch casting die 2-4 is fixedly arranged on the left side of the lens group installation sliding block seat 2-1 through screws.
A right slider mounting surface of a lens group mounting slider seat 2-1 of the lens component 2 is fixedly connected with a slider of a right slider linear guide rail 1-2 of the base component 1 through a screw, a left slider mounting surface of the lens group mounting slider seat 2-1 of the lens component 2 is fixedly connected with a slider of a left slider linear guide rail 1-3 of the base component 1 through a screw, and a flange mounting nut of an external driving type linear stepping motor 1-5 of the base component 1 is fixedly mounted in a nut mounting hole of the lens group mounting slider seat 2-1 of the lens component 2 through a screw; an external driving type linear stepping motor 1-5 of the base component 1 can drive a slide block of a right slide block linear guide rail 1-2 of the lens component 2, the base component 1 and a slide block of a left slide block linear guide rail 1-3 of the base component 1 to move back and forth, when a zoom lens group 2-2 of the lens component 2 moves to a long focus position of an optical system of an optical imaging device, a right microswitch pressing piece 2-3 of the lens component 2 is contacted with a front microswitch 1-7 of the base component 1, and a contact of the front microswitch 1-7 is pressed down; when the zoom lens group 2-2 of the lens component 2 moves to the short focus position of the optical imaging equipment optical system, the left microswitch pressing piece 2-4 of the lens component 2 is contacted with the rear microswitch 1-9 of the base component 1, and the contact of the rear microswitch 1-9 is pressed down.
Referring to fig. 4 and 5, the present patent further provides a control method of a two-position zoom apparatus having a focusing function, the method including the steps of:
1) starting an external driving type linear stepping motor 1-5 of a base assembly 1, enabling a lens assembly 2 to move forwards through transmission of a flange mounting nut of the external driving type linear stepping motor 1-5, stopping the movement of the lens assembly 2 when the front end surface of a lens group mounting slide block seat 2-1 of the lens assembly 2 is contacted with a motor mounting limiting seat 1-4 of the base assembly 1, blocking the rotation of the external driving type linear stepping motor 1-5, increasing the working current, stopping the driving of the external driving type linear stepping motor 1-5 in a short time, and recording the position of the lens assembly 2 as an initial position;
2) starting an external driving type linear stepping motor 1-5 of a base assembly 1, driving a lens assembly 2 to move backwards, when a right microswitch pressing piece 2-3 of the lens assembly 2 is contacted with a front microswitch 1-7 of the base assembly 1, a contact of the front microswitch 1-7 is pressed down, the front microswitch 1-7 sends an electric signal, at the moment, the external driving type linear stepping motor 1-5 is stopped from driving, a zoom lens group 2-2 of the lens assembly 2 is in a long-focus position, and an optical system can carry out long-focus imaging;
3) when the position of the focal plane of the optical system is changed due to temperature change in the long-focus imaging process, an external driving type linear stepping motor 1-5 of the base component 1 is started, and the lens component 2 is driven to move back and forth, so that the focal plane of the optical system returns to the position before the temperature change, and the long-focus imaging focusing function is realized;
4) starting an external driving type linear stepping motor 1-5 of a base assembly 1, driving a lens assembly 2 to move backwards, when a left micro switch pressing piece 2-4 of the lens assembly 2 is contacted with a rear micro switch 1-9 of the base assembly 1, a contact of the rear micro switch 1-9 is pressed down, the rear micro switch 1-9 sends an electric signal, at the moment, the external driving type linear stepping motor 1-5 is stopped from driving, a zoom lens group 2-2 of the lens assembly 2 is in a short-focus position, and an optical system can perform short-focus imaging;
5) when the position of the focal plane of the optical system is changed due to temperature change in the short-focus imaging process, an external driving type linear stepping motor 1-5 of the base assembly 1 is started, and the lens assembly 2 is driven to move back and forth, so that the focal plane of the optical system returns to the position before the temperature change, and the function of focusing in short-focus imaging is realized;
6) and (5) repeatedly executing the steps 1) to 5) to realize the two-gear zooming switching and focusing functions of the zooming device.
The embodiment comprises the following action flows: the two-gear zooming device with the focusing function, provided with the zooming lens, is arranged at the zooming position of an optical system of the optical imaging equipment through a screw, the lens assembly 2 of the two-gear zooming device is controlled to move according to the control method provided by the patent, so that the two-gear zooming switching and focusing functions can be realized, the motor of the base assembly 1 is provided with the limiting seats 1-4, the left limiting parts 1-10 and the right limiting parts 1-11 to mechanically limit the movement of the lens assembly 2 in the moving process, and the movement of the lens assembly 2 is prevented from exceeding the preset stroke.
Claims (1)
1. A two-gear zoom device with a focusing function comprises a base assembly (1) and a lens assembly (2); the method is characterized in that:
the base component (1) comprises a base (1-1), a right slider linear guide rail (1-2), a left slider linear guide rail (1-3), a motor installation limiting seat (1-4), an external drive type linear stepping motor (1-5), a front micro-switch installation seat (1-6), a front micro-switch (1-7), a rear micro-switch installation seat (1-8), a rear micro-switch (1-9), a left limiting part (1-10) and a right limiting part (1-11); the structure is as follows: the upper end of the base (1-1) is provided with a left guide rail mounting surface and a right guide rail mounting surface which are coplanar, the guide rail of the right slider linear guide rail (1-2) is fixedly mounted on the right guide rail mounting surface of the base (1-1) through a screw, and the guide rail of the left slider linear guide rail (1-3) is fixedly mounted on the left guide rail mounting surface of the base (1-1) through a screw; the motor installation limiting seat (1-4) is fixedly connected with the front end face of the base (1-1) through a screw, a screw shaft of the external driving type linear stepping motor (1-5) is sleeved with a flange installation nut, and the external driving type linear stepping motor (1-5) is fixedly connected with the motor installation limiting seat (1-4) through a screw; the front microswitch mounting seat (1-6) is fixedly mounted at the front part of the right side of the base (1-1) through a screw, and the front microswitch (1-7) is fixedly connected with the front microswitch mounting seat (1-6) through a screw; the rear microswitch mounting seat (1-8) is fixedly mounted at the rear part of the left side of the base (1-1) through a screw, and the rear microswitch (1-9) is fixedly connected with the rear microswitch mounting seat (1-8) through a screw; the left limiting piece (1-10) is fixedly connected with the rear end face of the left side of the base (1-1) through a screw, and the right limiting piece (1-11) is fixedly connected with the rear end face of the right side of the base (1-1) through a screw;
the lens assembly (2) comprises a lens assembly mounting sliding block seat (2-1), a zoom lens assembly (2-2), a right microswitch pressing piece (2-3) and a left microswitch pressing piece (2-4); the structure is as follows: the center of the lens group installation sliding block seat (2-1) is provided with a nut installation hole, and the lower end of the lens group installation sliding block seat is provided with a left sliding block installation surface and a right sliding block installation surface which are coplanar; an optical zoom lens is arranged in a center hole of the zoom lens group (2-2), and the zoom lens group (2-2) is fixedly arranged in an installation groove at the upper end of the lens group installation sliding block seat (2-1) through a screw; the right microswitch pressing piece (2-3) is fixedly arranged on the right side of the lens group installation sliding block seat (2-1) through a screw, and the left microswitch pressing piece (2-4) is fixedly arranged on the left side of the lens group installation sliding block seat (2-1) through a screw;
the lens group installation slide block seat (2-1) of the lens component (2) is fixedly connected with a slide block of a right slide block linear guide rail (1-2) of the base component (1) through a screw, the lens group installation slide block seat (2-1) of the lens component (2) is fixedly connected with a slide block of a left slide block linear guide rail (1-3) of the base component (1) through a screw, and a flange installation nut of an external drive type linear stepping motor (1-5) of the base component (1) is fixedly installed in a nut installation hole of the lens group installation slide block seat (2-1) of the lens component (2) through a screw; an external driving type linear stepping motor (1-5) of the base component (1) can drive the lens component (2), a slide block of a right slide block linear guide rail (1-2) of the base component (1) and a slide block of a left slide block linear guide rail (1-3) of the base component (1) to move back and forth, when a zoom lens group (2-2) of the lens component (2) moves to a long-focus position of an optical imaging equipment optical system, a right microswitch pressing piece (2-3) of the lens component (2) is contacted with a front microswitch (1-7) of the base component (1), and a contact of the front microswitch (1-7) is pressed down; when the zoom lens group (2-2) of the lens component (2) moves to a short-focus position of an optical system of the optical imaging equipment, a left microswitch pressing piece (2-4) of the lens component (2) is contacted with a rear microswitch (1-9) of the base component (1), and a contact of the rear microswitch (1-9) is pressed down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920711997.XU CN209928112U (en) | 2019-05-17 | 2019-05-17 | Two-gear zooming device with focusing function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920711997.XU CN209928112U (en) | 2019-05-17 | 2019-05-17 | Two-gear zooming device with focusing function |
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| CN209928112U true CN209928112U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119017A (en) * | 2019-05-17 | 2019-08-13 | 中国科学院上海技术物理研究所 | A kind of two grades of zoom lens control devices having focusing function and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119017A (en) * | 2019-05-17 | 2019-08-13 | 中国科学院上海技术物理研究所 | A kind of two grades of zoom lens control devices having focusing function and its control method |
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