CN210892995U - Manual zoom lens with potentiometer electronic feedback device - Google Patents
Manual zoom lens with potentiometer electronic feedback device Download PDFInfo
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- CN210892995U CN210892995U CN201921821240.2U CN201921821240U CN210892995U CN 210892995 U CN210892995 U CN 210892995U CN 201921821240 U CN201921821240 U CN 201921821240U CN 210892995 U CN210892995 U CN 210892995U
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Abstract
The utility model provides a manual zoom lens with a potentiometer electronic feedback device, which has the advantages of convenient operation, good reliability and high working efficiency; comprises a manual zoom lens main body and an electronic feedback device, wherein the manual zoom lens main body comprises a lens adaptor, an upper lens barrel and a lower lens barrel, the lower lens barrel is rotatably connected with a shaft sleeve, the electronic feedback device comprises a potentiometer base, the shaft sleeve is divided into an inner shaft sleeve and an outer shaft sleeve, the potentiometer base is in a hollow circular ring shape, the inner shaft sleeve is relatively rotatably connected with the inner wall of the potentiometer base, the potentiometer comprises a potentiometer base, a resistance element, a conductive element, a resistance contact brush and a conductive contact, wherein the resistance element and the conductive element form a step structure with the inner wall of the potentiometer base, the resistance contact brush and the conductive contact are arranged on the outer wall of an inner shaft sleeve, the resistance contact brush is in contact with the resistance element, the conductive contact is in contact with the conductive element, the resistance contact brush and the conductive contact are connected through a conductive adapter, the resistance element is connected with a power supply, and a resistance monitor is connected between the resistance element and the conductive contact.
Description
Technical Field
The utility model relates to an optical equipment technical field specifically is a manual zoom camera lens with potentiometre electronic feedback device.
Background
In the prior art, when the manual zoom lens is applied to various measurement environments, most of them are to read the magnification value of the current position of the lens indicated on the graduated ring of the lens by manual visual observation, and then to manually input the read magnification value of the current position of the lens to the lower device (mostly a PC) connected with the lens, however, in this process, it is difficult to ensure that the information of whether the lens magnification ratio is adjusted to the accurate position of the current magnification ratio is accurately obtained, and the situation of reading the numerical value of the lens magnification ratio by mistake is easy to occur, and each time the lens is adjusted, the numerical value of the magnification of the current position of the lens needs to be read manually, then manually inputting the magnification value of the read current position of the lens to a lower device connected with the lens, therefore, the operation is complicated, the working efficiency of a manual confirmation mode is low, and errors are easy to occur during manual input; in addition, the zoom lens with magnification adjustment indication comprises a position detection signal transmitting and receiving device, a position detection signal reflecting device and the like, so as to realize the function of electronic information feedback, the position detection signal reflecting device is used as an electronic feedback device and reflects the detection signal from the position detection signal transmitting and receiving device back to the position detection signal transmitting and receiving device, the position detection signal reflecting device is fixedly arranged on the manual focusing lens body and synchronously rotates along with the manual focusing lens body, a light reflecting body for marking the position is arranged on the position detection signal reflecting device according to the Gray code coding mode, the light reflecting body is electrically connected with the position detection signal transmitting and receiving device, provides power for the position detection signal transmitting and receiving device and decodes the signal from the position detection signal transmitting and receiving device to be used by the lower equipment connected with the position detection signal transmitting and receiving device, however, the electronic feedback system of the zoom lens with magnification adjustment indication is complex and has high design and production cost.
Disclosure of Invention
To the above problem, the utility model provides a manual zoom camera lens with potentiometre electronic feedback device, its convenient operation, the stable performance can effectively reduce the unreliability of manual operation, promotes work efficiency greatly, and simple structure, and design low in production cost.
The technical scheme is as follows: the manual zoom lens with the potentiometer electronic feedback device comprises a manual zoom lens main body and an electronic feedback device connected with the manual zoom lens main body, wherein the electronic feedback device is connected with subordinate equipment, the manual zoom lens main body comprises a lens adaptor, an upper lens barrel and a lower lens barrel which are sequentially connected from top to bottom, and a shaft sleeve is rotatably connected inside the lower lens barrel The potentiometer comprises a conductive element, wherein the resistive element, the conductive element and the inner wall surface of a potentiometer base form a step structure, a resistance contact brush and a conductive contact are arranged on the outer wall surface of the inner shaft sleeve, the resistance contact brush is in contact with the resistive element, the conductive contact is in contact with the conductive element, the resistance contact brush is connected with the conductive contact through a conductive adapter, a power supply is connected between two ends of the resistive element, and a resistance monitor is connected between the resistive element and the conductive contact.
It is further characterized in that:
a zoom window is formed on the lower lens cone, the outer shaft is sleeved in the lower lens cone, shaft sleeve threads are arranged on the outer shaft sleeve, and a multiple value is arranged on the outer wall of the outer shaft sleeve;
an annular groove is formed in the inner wall of the lower lens cone, and the top end face of the outer shaft sleeve is mounted in the annular groove in a jacking mode;
the resistance element and the conductive element are both provided with two inner pins, the potentiometer base is provided with a total pin, the inner pins on the conductive element are connected to the total pin in a gathering manner, the power supply is connected between the two inner pins on the resistance element, and the resistance monitor is connected between the inner pins at one end of the resistance element and the conductive contact;
the bottom of the potentiometer base is provided with an electric control device which is cuboid and comprises 3 outer pins, the inner pins at two ends of the resistive element are respectively and correspondingly connected with the outer pins at two sides of the electric control device, the total pin is connected with one outer pin in the middle of the electric control device, and one outer pin in the middle of the electric control device is connected with the lower-level equipment;
and the electric control device is also provided with an LED display lamp, and the LED display lamp is connected with the middle outer pin on the electric control device.
The beneficial effects of the utility model are that, its structure is succinct, compact, and convenient for operation, stable performance, when rotating the inner shaft cover, resistance contact brush and resistive element relative motion, resistance contact brush's current information transmits the conductivity contact through the conductive adapter this moment, the conductivity contact conveys current information to subordinate's equipment through the conductivity element again and carries out analog-to-digital conversion, can feed back current manual camera lens position information, thereby obtain multiple information, in order to carry out the data acquisition of magnification, electronic information feedback has been realized, thereby the work efficiency of manual zoom camera lens has been improved, and the design manufacturing cost of manual zoom camera lens electronic feedback has been reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the structure of the electronic feedback device;
FIG. 3 is a schematic view of a partial structure of an electronic feedback device;
FIG. 4 is a schematic view of a partial structure of an electronic feedback device;
FIG. 5 is a wiring schematic of the electronic feedback device;
fig. 6 is a schematic diagram of an electronic feedback circuit according to the present invention.
Detailed Description
As shown in fig. 1 to 6, the manual zoom lens with potentiometer electronic feedback device of the present invention includes a manual zoom lens body and an electronic feedback device connected to the manual zoom lens body, the electronic feedback device is connected to a subordinate device (not shown in the figure), the subordinate device employs a single chip with analog-to-digital conversion function, or other devices capable of converting a voltage signal into an angular position digital signal; the manual zoom lens main body comprises a lens adaptor 1, an upper lens barrel 2 and a lower lens barrel 3 which are sequentially connected from top to bottom, a shaft sleeve is rotatably connected inside the lower lens barrel 3, the electronic feedback device comprises a potentiometer base 7 arranged at the bottom of the manual zoom lens main body, the bottom of the shaft sleeve is assembled in the potentiometer base 7, the shaft sleeve is divided into an outer shaft sleeve 10 and an inner shaft sleeve 11 which are integrated for convenient distinguishing, and the potentiometer base 7 is in a hollow annular shape so as to realize that a hollow part can be communicated with a light path; the outer shaft sleeve 10 is arranged outside the potentiometer base 7, the inner shaft sleeve 11 is connected with the inner wall of the potentiometer base 7 in a relative rotation mode, namely, the shaft sleeve can rotate freely and concentrically in the potentiometer base 7, a resistive element 15 and a conductive element 16 which are independent from each other are attached to the inner wall of the potentiometer base 7 from inside to outside, the resistive element 15 and the conductive element 16 form a step structure with the inner wall of the potentiometer base 7, a resistive contact brush 12 and a conductive contact 13 are arranged on the outer wall of the inner shaft sleeve 11, the resistive contact brush 12 is in contact with the resistive element 15, the conductive contact 13 is in contact with the conductive element 16, the resistive contact brush 12 is connected with the conductive contact 13 through a conductive adapter 14, a power supply 22 is connected between two ends of the resistive element 15, and a resistance monitor 9 is connected between the resistive element 15 and the conductive contact 13, wherein, the resistance monitor 9 is replaced by a voltmeter.
A zoom window 4 is formed on the lower lens cone 3, an outer shaft sleeve 10 is arranged in the lower lens cone 3, shaft sleeve threads 6 are arranged on the outer shaft sleeve 10, and a multiple indication value 5 is arranged on the outer wall of the outer shaft sleeve 10; an annular groove (not shown) is arranged on the inner wall of the lower lens barrel 3, and the top end surface of the outer shaft sleeve 10 is arranged in the annular groove in a jacking mode.
In this embodiment, the resistive element 15 and the conductive element 16 are both in a notched annular band shape, or the resistive element 15 and the conductive element 16 may also adopt a discontinuous annular resistor, inner pins 17 and 18 correspondingly communicated with each other are respectively provided at two ends of the resistive element 15 and the conductive element 16 at the notch, a total pin 21 is provided on the potentiometer base 7, the inner pins 18 at two ends of the conductive element 16 are collectively connected to the total pin 21, the power supply 22 is connected between the inner pins 17 at two ends of the resistive element 15, and the resistance monitor 9 is connected between the inner pin 17 at one end of the resistive element 15 and the conductive contact 13; the inner leads 17 at both ends of the resistive element 15 are responsible for supplying power to the resistive element 15, and one of the inner leads of the resistive element 15 is positively charged and the other inner lead is negatively charged; the resistive element 15 is a ring resistor with uniform resistance; the inner leads 18 at the two ends of the conductive element 16 are responsible for receiving the voltage information from the conductive element 16.
The bottom of the potentiometer base 7 is provided with an electric control device 19, the electric control device 19 is cuboid, the electric control device 19 comprises outer pins 20-1, 20-2 and 20-3, inner pins 17 at two ends of the resistive element 15 are respectively and correspondingly connected with the outer pins 20-1 and 20-3 at two sides of the electric control device 19, a total pin 21 is connected with an outer pin 20-2 in the middle of the electric control device 19, and an outer pin 20-2 in the middle of the electric control device 19 is connected with lower-level equipment.
In the present invention, when power is supplied to the outer and upper pins of the electrical control device 19, the inner shaft housing 11 is rotated, the resistive contact brush 12 will move relative to the resistive element 15, at this time, the current information of the resistive contact brush 15 is transmitted to the conductive contact 13 through the conductive adaptor 14, the conductive contact 13 passes through the conductive element 16 inside the potentiometer base 7, the conductive element 16 is transmitted to the outer pin 20-2 of the electrical control device 19 through the inner pin 18, therefore, the resistive contact brush 12, the conductive contact 13, the conductive adaptor 14, the conductive element 16, the inner pin 18, and the total pin 21 have the meaning that the resistance transmits the current on the resistive element 15 to the outer pin 20-2, at this time, the resistive contact brush 12, the conductive contact 13, the conductive adaptor 14, the resistive element 15, the conductive element 16, the inner pin 17, the inner pin 18, the outer pin 20-1, 20-2, 20-3, and the total pin 21 constitute a typical potentiometer circuit system as shown in fig. 6, so that when the rotation angle of the inner shaft housing 11 is changed, the resistance value of the inner pin 18, the resistance value is converted into a linear voltage change, and the total resistance change of the total pin 15, and the current resistance change of the linear voltage of the linear resistance change of the linear resistance of the lens, the linear lens can be detected by using the principle that the linear resistance change of the linear lens, the linear lens can be the linear lens, and the linear lens, the linear lens can be detected voltage change of the linear lens, and the linear lens, the linear lens can be the linear lens, and the linear lens can be detected voltage change of the linear lens, and the linear lens, the linear lens can.
The electric control device 19 is also provided with an LED display lamp 8, the LED display lamp 8 is connected with an outer pin 20-2 in the middle of the electric control device 19, wherein the color of the LED display lamp 8 cannot be directly influenced by the change of the resistor R, the LED display lamp 8 is controlled by lower equipment, and when the lower equipment identifies that a signal is the only signal when the zooming is accurate in the whole zooming adjusting process, the lower equipment feeds back a signal to the LED display lamp 8 to change the color of the LED display lamp; for example, when the target magnification of the lens is set to be 0.7, the inner shaft sleeve 11 with the resistive element 15 at the bottom is manually rotated during zooming to enable the scale mark of the magnification indication value 5 in the zooming window 4 to be aligned with the magnification value of 0.7, and at the moment, the LED display lamp 8 displays green to indicate that the zooming lens is rotated to the accurate position of the magnification of 0.7; if the LED display light 8 displays red, it indicates that the zoom lens is not rotated to the position area with the magnification of 0.7, that is, the zoom lens is not rotated to the accurate position with the magnification of 0.7, at this time, the specific numerical value of the magnification of the zoom lens is not clear, and the inner shaft sleeve 11 needs to be rotated continuously until the LED display light 8 displays green.
To sum up, the utility model discloses a structural feature that electronic feedback combines manual zoom camera lens self, the design is based on electronic feedback device and is used for measuring the optical magnification who manual zoom camera lens is located at present, and give subordinate's equipment with corresponding analog signal transmission, turn into digital signal from analog signal again, obtain from the digital signal information and let entire system in time obtain accurate camera lens magnification information, send subordinate's equipment and be used for corresponding calculation procedure needs, promote work efficiency, reduce the unreliability of artificial operation, the reliability of manual zoom camera lens work has been improved greatly, the design manufacturing cost of manual zoom camera lens electronic feedback has been reduced, easy to use promotes.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The manual zoom lens with the potentiometer electronic feedback device comprises a manual zoom lens main body and an electronic feedback device connected with the manual zoom lens main body, wherein the electronic feedback device is connected with subordinate equipment, the manual zoom lens main body comprises a lens adaptor, an upper lens barrel and a lower lens barrel which are sequentially connected from top to bottom, and a shaft sleeve is rotatably connected inside the lower lens barrel The potentiometer comprises a conductive element, wherein the resistive element, the conductive element and the inner wall surface of a potentiometer base form a step structure, a resistance contact brush and a conductive contact are arranged on the outer wall surface of the inner shaft sleeve, the resistance contact brush is in contact with the resistive element, the conductive contact is in contact with the conductive element, the resistance contact brush is connected with the conductive contact through a conductive adapter, a power supply is connected between two ends of the resistive element, and a resistance monitor is connected between the resistive element and the conductive contact.
2. The manual zoom lens with electronic feedback device of potentiometer according to claim 1, characterized in that: the zoom lens is characterized in that a zoom window is formed in the lower lens cone, the outer shaft is sleeved in the lower lens cone, shaft sleeve threads are arranged on the outer shaft sleeve, and multiple indication values are arranged on the outer wall of the outer shaft sleeve.
3. The manual zoom lens with electronic feedback device of potentiometer according to claim 1, characterized in that: the inner wall of the lower lens cone is provided with an annular groove, and the top end surface of the outer shaft sleeve is arranged in the annular groove in a jacking mode.
4. The manual zoom lens with electronic feedback device of potentiometer according to claim 1, characterized in that: the resistance element and the conductive element are both provided with two inner pins, the potentiometer base is provided with a total pin, the inner pins on the conductive element are connected to the total pin in a gathering manner, the power supply is connected between the two inner pins on the resistance element, and the resistance monitor is connected between the inner pins at one end of the resistance element and the conductive contact.
5. The manual zoom lens with electronic feedback device of potentiometer according to claim 4, characterized in that: the potentiometer base bottom is equipped with electrically controlled device, electrically controlled device is the cuboid, electrically controlled device includes 3 outer pins, the resistive element both ends the interior pin respectively with the last both sides of electrically controlled device outer pin corresponds the connection, total pin with one in the middle of on the electrically controlled device outer pin is connected, one in the middle of on the electrically controlled device outer pin with subordinate's equipment is connected.
6. The manual zoom lens with electronic feedback device of potentiometer according to claim 5, characterized in that: and the electric control device is also provided with an LED display lamp, and the LED display lamp is connected with the middle outer pin on the electric control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821240.2U CN210892995U (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with potentiometer electronic feedback device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821240.2U CN210892995U (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with potentiometer electronic feedback device |
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| CN210892995U true CN210892995U (en) | 2020-06-30 |
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| CN201921821240.2U Active CN210892995U (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with potentiometer electronic feedback device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631473A (en) * | 2019-10-28 | 2019-12-31 | 苏州天准科技股份有限公司 | Manual zoom lens with potentiometer electronic feedback device |
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- 2019-10-28 CN CN201921821240.2U patent/CN210892995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631473A (en) * | 2019-10-28 | 2019-12-31 | 苏州天准科技股份有限公司 | Manual zoom lens with potentiometer electronic feedback device |
| CN110631473B (en) * | 2019-10-28 | 2024-06-18 | 苏州天准科技股份有限公司 | Manual zoom lens with potentiometer electronic feedback device |
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