CN110646170A - Electronic feedback manual zoom lens based on light intensity - Google Patents
Electronic feedback manual zoom lens based on light intensity Download PDFInfo
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- CN110646170A CN110646170A CN201911030463.1A CN201911030463A CN110646170A CN 110646170 A CN110646170 A CN 110646170A CN 201911030463 A CN201911030463 A CN 201911030463A CN 110646170 A CN110646170 A CN 110646170A
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- manual zoom
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- 230000003287 optical effect Effects 0.000 claims abstract description 80
- 238000012545 processing Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25033—Pc structure of the system structure, control, syncronization, data, alarm, connect I-O line to interface
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides an electronic feedback manual zoom lens based on light intensity, which has convenient operation, stable performance, capability of effectively reducing the unreliability of manual operation and greatly improving the working efficiency, simple structure and low cost, and comprises a manual zoom lens main body and an electronic feedback device connected with the manual zoom lens main body, wherein 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, a rotating shaft sleeve is rotationally connected in the upper lens barrel, optical signal reflectors are assembled on the rotating shaft sleeve at intervals in an annular manner, a light through port is arranged on the upper lens barrel corresponding to the optical signal reflectors, the electronic feedback device comprises an electronic feedback base, and an optical signal transmitting unit, a receiving unit and a signal processing unit which are arranged on the electronic feedback base, the electronic feedback base is fixed on the outer wall of the upper lens barrel, and the optical signal transmitting unit and the receiving unit both face the optical signal reflectors through the light through ports, the optical signal receiving unit is connected with the lower level equipment.
Description
Technical Field
The invention relates to the technical field of optical equipment, in particular to an electronic feedback manual zoom lens based on light intensity.
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 regulation indication comprises a position detection signal transmitting and light signal receiving unit, a position detection signal reflecting piece and the like to realize the electronic information feedback capacity, the position detection signal reflecting piece is used as an electronic feedback device and reflects a detection signal from the position detection signal transmitting and light signal receiving unit back to the position detection signal transmitting and light signal receiving unit, the position detection signal reflecting piece is fixedly arranged on a manual focusing lens body and synchronously rotates along with the manual focusing lens body, a light reflecting piece with marked positions arranged according to a Gray code coding mode is arranged on the position detection signal reflecting piece, the light reflecting piece is electrically connected with the position detection signal transmitting and light signal receiving unit, and provides power for the position detection signal transmitting and light signal receiving unit and decodes a signal from the position detection signal transmitting and light signal receiving unit to a lower level connected with the position detection signal transmitting and light signal receiving unit The electronic feedback system of the zoom lens with the magnification adjustment indication is complex and has high design and production cost.
Disclosure of Invention
Aiming at the problems, the invention provides the electronic feedback manual zoom lens based on the light intensity, which is convenient to operate, stable in performance, simple in structure and low in design and production cost, and can effectively reduce the unreliability of manual operation and greatly improve the working efficiency.
The technical scheme is as follows: an electronic feedback manual zoom lens based on light intensity 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, a rotary shaft sleeve is rotatably connected inside the upper lens barrel, the electronic zoom lens is characterized in that optical signal reflectors are annularly assembled at intervals on the upper part of the rotary shaft sleeve, a light through port is formed in the upper lens barrel corresponding to the optical signal reflectors, the electronic feedback device comprises an electronic feedback base, and an optical signal transmitting unit, an optical signal receiving unit and a signal processing unit which are arranged on the electronic feedback base, the optical signal transmitting unit and the optical signal receiving unit are assembled on the signal processing unit, and the electronic feedback base is fixed on the outer wall of the upper lens barrel, the optical signal transmitting unit and the optical signal receiving unit face the optical signal reflecting piece through the light through port, and the optical signal receiving unit is connected with the lower-level equipment.
It is further characterized in that:
the upper part of the rotary shaft sleeve is provided with groove screens which are annularly arranged on the rotary shaft sleeve at intervals, and each groove screen is internally provided with the optical signal reflection piece;
the optical signal reflecting piece adopts a reflecting coating with a reflecting effect, and the reflecting coating is coated on the groove clamping position;
the optical signal reflection piece adopts a reflection lens with a reflection effect, and the reflection lens is clamped in the groove clamping position;
the cross sectional area of the groove screens increases or decreases in an annular manner, and the cross sectional area of the optical signal reflecting piece on the groove screens correspondingly increases or decreases in an annular manner;
the upper lens barrel is provided with an assembly hole, and the electronic feedback base is arranged on the outer wall of the upper lens barrel at the light through opening through the assembly hole;
the electronic feedback base is in a housing shape, the signal processing unit is assembled in the electronic feedback base, the optical signal transmitting unit is a surface light source, and the surface light source is arranged around the outer ring of the photosensitive target surface of the optical signal receiving unit; a data transmission interface is arranged at the bottom of the electronic feedback base, the data transmission interface is connected with the optical signal receiving unit and the signal processing unit, and the data transmission interface is connected with the lower-level equipment;
an LED indicator lamp is arranged on the signal processing unit and exposed out of the electronic feedback base, and the LED indicator lamp is connected with the subordinate equipment;
a zoom window is formed on the lower lens cone, shaft sleeve threads are arranged on the rotating shaft sleeve corresponding to the zoom window, and a multiple indicating value is arranged on the outer wall of the rotating shaft sleeve in the zoom window;
an annular groove is formed in the inner wall of the upper lens barrel, and the top end face of the rotary shaft sleeve is mounted in the annular groove in a jacking mode.
The optical signal receiving unit can generate different light currents, and the optical magnification information of the manual zoom lens at present can be determined through the different light currents, so that the electronic information feedback is realized, the working efficiency of the manual zoom lens is greatly improved, and the design and production cost of the electronic feedback of the manual zoom lens is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the manual zoom lens and the electronic feedback base;
FIG. 3 is a schematic view of a rotary bushing;
fig. 4 is a schematic structural diagram of an electronic feedback base.
Detailed Description
As shown in fig. 1 to 4, the electronic feedback manual zoom lens based on light intensity of the present invention includes a manual zoom lens main body and an electronic feedback device connected thereto, the electronic feedback device is connected to a lower device (not shown in the figures), and the lower device is a single chip; 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 rotary shaft sleeve 4 is rotatably connected inside the upper lens barrel 2, namely the rotary shaft sleeve 4 is rotatably connected with the upper lens barrel 2 after penetrating through the lower lens barrel 3, optical signal reflectors 5 are annularly assembled at the upper part of the rotary shaft sleeve 4 at intervals, the light reflecting areas of the optical signal reflectors 5 are different, a light through port 6 is arranged on the upper lens barrel 2 corresponding to the optical signal reflectors 5, the light through port 6 can facilitate the optical path transmission between the optical signal reflectors 5 and an optical signal receiving unit 7, an electronic feedback device comprises an electronic feedback base 8, and an optical signal transmitting unit, an optical signal receiving unit 7 and a signal processing unit which are arranged on the electronic feedback base 8, the optical signal transmitting unit and the optical signal receiving unit 7 are all assembled on the signal processing unit, the electronic feedback base 8 is fixed on the outer wall of the upper lens barrel 2, the optical signal transmitting unit and the optical signal receiving unit 7 face the optical signal reflecting piece 5 through the light through port 6, namely, the optical signal transmitting unit and the optical signal receiving unit 7 realize optical path transmission with the optical signal reflecting piece 5 through the light through port 6, and the optical signal receiving unit 7 is connected with lower-level equipment.
Be equipped with recess screens 9 on rotatory axle sleeve 4 upper portion, and recess screens 9 are annular interval arrangement on rotatory axle sleeve 4, all are equipped with light signal reflection piece 5 in every recess screens 9, and recess screens 9 and the quantity of light signal reflection piece 5 on it is decided by required detection zoom quantity, and in this embodiment, the quantity of recess screens 9 and the light signal reflection piece 5 on it is 8.
The optical signal reflector 5 can be composed of a plane with good reflectivity, such as a reflector lens, reflective coating, reflective plastic, patch glass and the like, if the optical signal reflector 5 adopts a reflective coating with a reflective effect, the reflective coating is coated on the groove clamp position 9, if the optical signal reflector 5 adopts the reflective coating, the structural design of the groove clamp position 9 can be omitted, and the reflective coating is directly coated on the rotary shaft sleeve 4; or the optical signal reflection piece 5 adopts a reflection lens with reflection effect, and the reflection lens is clamped in the groove clamping position 9.
The cross-sectional area of the groove position 9 increases or decreases in a ring shape, and the cross-sectional area of the optical signal reflection member 5 on the groove position 9 increases or decreases in a ring shape correspondingly.
An assembly hole 10 is formed in the upper lens barrel 2, and the electronic feedback base 8 is mounted on the outer wall of the upper lens barrel 2 at the light through port 6 through the assembly hole 10.
The electronic feedback base 8 is in a shell shape, the signal processing unit is a circuit board 11, the circuit board 11 is assembled in the electronic feedback base 8, the optical signal transmitting unit and the optical signal receiving unit 7 are both assembled on the circuit board 11, and the optical signal receiving unit 7 adopts a photodiode, or can also adopt other sensors which can also perform photoelectric signal conversion, such as a photoresistor, a silicon photocell and the like; the optical signal transmitting unit is a rectangular annular surface light source 12 which is assembled by strip-shaped red LED surface light sources, the circuit board 11 can play a role in processing signals and supplying power to the photodiode and the surface light source 12, and can supply power and feed back electric signals to the LED indicating lamp 14, the photodiode is assembled on the circuit board 11, the photosensitive target surface of the photodiode is square, or rectangular, circular and the like can be adopted, and the surface light source 12 is arranged around the outer ring of the photosensitive target surface of the optical signal receiving unit 7; the bottom of the electronic feedback base 8 is provided with a data transmission interface 13, the data transmission interface 13 is connected with the photodiode and the circuit board 11, signal communication can be carried out with lower-level equipment through the data transmission interface 13 and power is supplied to the photodiode, and the data transmission interface 13 is connected with the lower-level equipment; the circuit board 11 is provided with an LED indicator lamp 14, the LED indicator lamp 14 is exposed out of the electronic feedback base 8, the LED indicator lamp 14 is connected with the subordinate equipment, and the LED indicator lamp 14 adopts an LED indicator lamp 14 with red and green colors;
the LED indicator lamp 14 is controlled by the subordinate device, and when the subordinate device recognizes that the signal is the signal which is only when the zooming is accurate in the whole zooming adjusting process, the subordinate device feeds back a signal to the LED indicator lamp 14 to change the color of the signal; for example, when the target magnification is 0.7, the rotary shaft sleeve 4 with the shaft sleeve thread 16 is manually rotated during zooming, so that the scale line of the rotary shaft sleeve 4 is aligned with the range of the multiple indication value of 0.7, and the position area of the magnification 0.7 is the range of 6mm in which the scale position of the multiple indication value of 0.7 deviates to the left and right respectively by 3mm and the middle, and the range interval is determined by the structural design of the manual zoom lens, for example, when the target magnification of the manual zoom lens is set to be 0.7, the rotary shaft sleeve 4 is manually rotated during zooming, so that the scale line of the multiple indication value in the zoom window 15 is aligned with the magnification value of 0.7, at this time, the LED indicator lamp 14 displays green, which indicates that the manual zoom lens has been rotated to the accurate position of the magnification of 0.7, and the color information is fed back and input to the LED indicator lamp 14 by the lower-level; if the LED indicator light 14 displays red, it indicates that the manual zoom lens is not rotated into the position area with the magnification of 0.7, that is, the manual 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 manual zoom lens is not clear, and the rotation shaft sleeve 4 needs to be continuously rotated until the LED indicator light 14 displays green.
A zoom window 15 is formed on the lower lens cone 3, a shaft sleeve thread 16 is arranged on the rotary shaft sleeve 4 corresponding to the zoom window 15, and a multiple indicating value is arranged on the outer wall of the rotary shaft sleeve 4 in the zoom window 15; an annular groove (not shown) is arranged on the inner wall of the upper lens cone 2, and the top end surface of the rotary shaft sleeve 4 is arranged in the annular groove in a jacking mode.
In the invention, after the circuit board 11 is electrified and the photodiode is electrified, the surface light source 12 emits light rays without a specific direction to polish the optical signal reflecting piece 5, when the rotary shaft sleeve 4 rotates to an amplification factor position, at the moment, the photosensitive target surface of the photodiode is parallel to the plane of the optical signal reflecting piece 5, the optical signal reflecting piece 5 reflects light intensity with a specific size to the photosensitive target surface of the photodiode, so that the photodiode generates an optical current value with a specific size, because the area of the optical signal reflecting piece 5 with different areas is larger under a certain light intensity, the output light intensity is larger, namely the optical current value generated by the photodiode is larger, and the optical signal reflecting piece 5 corresponds to the indication value on the rotary shaft sleeve 4 under a specific magnification factor, the area size of the optical signal reflecting piece 5 can be determined through the size of the optical current, and the corresponding amplification factor can be found according to the area size, and finally, the current value is processed by lower equipment to obtain the current optical magnification information of the manual zoom lens.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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 (10)
1. An electronic feedback manual zoom lens based on light intensity 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, a rotary shaft sleeve is rotatably connected inside the upper lens barrel, the electronic zoom lens is characterized in that optical signal reflectors are annularly assembled at intervals on the upper part of the rotary shaft sleeve, a light through port is formed in the upper lens barrel corresponding to the optical signal reflectors, the electronic feedback device comprises an electronic feedback base, and an optical signal transmitting unit, an optical signal receiving unit and a signal processing unit which are arranged on the electronic feedback base, the optical signal transmitting unit and the optical signal receiving unit are assembled on the signal processing unit, and the electronic feedback base is fixed on the outer wall of the upper lens barrel, the optical signal transmitting unit and the optical signal receiving unit face the optical signal reflecting piece through the light through port, and the optical signal receiving unit is connected with the lower-level equipment.
2. A light intensity-based electronic feedback manual zoom lens according to claim 1, wherein: rotatory axle sleeve upper portion is equipped with the recess screens, just the recess screens be annular interval arrange in the rotation axis sheathes in, every all be equipped with in the recess screens light signal reflection piece.
3. The light intensity-based electronic feedback manual zoom lens according to claim 2, wherein: the optical signal reflection piece adopts a reflection coating with a reflection effect, and the reflection coating is coated on the groove clamping positions.
4. The light intensity-based electronic feedback manual zoom lens according to claim 2, wherein: the optical signal reflection piece adopts a reflection lens with a reflection effect, and the reflection lens is clamped in the groove clamping position.
5. The light intensity-based electronic feedback manual zoom lens according to claim 2, wherein: the cross-sectional area of the groove screens increases or decreases in an annular manner, and the cross-sectional area of the optical signal reflecting piece on the groove screens correspondingly increases or decreases in an annular manner.
6. A light intensity-based electronic feedback manual zoom lens according to claim 1, wherein: the upper lens barrel is provided with an assembly hole, and the electronic feedback base is arranged on the outer wall of the upper lens barrel at the light through opening through the assembly hole.
7. A light intensity-based electronic feedback manual zoom lens according to claim 1, wherein: the electronic feedback base is in a housing shape, the signal processing unit is assembled in the electronic feedback base, the optical signal transmitting unit is a surface light source, and the surface light source is arranged around the outer ring of the photosensitive target surface of the optical signal receiving unit; and a data transmission interface is arranged at the bottom of the electronic feedback base, the data transmission interface is connected with the optical signal receiving unit and the signal processing unit, and the data transmission interface is connected with the subordinate equipment.
8. The light intensity-based electronic feedback manual zoom lens of claim 7, wherein: and the signal processing unit is provided with an LED indicator light, the LED indicator light is exposed out of the electronic feedback base, and the LED indicator light is connected with the subordinate equipment.
9. A light intensity-based electronic feedback manual zoom lens according to claim 1, wherein: the lower lens cone is provided with a zoom window, the rotary shaft sleeve corresponding to the zoom window is provided with shaft sleeve threads, and the outer wall of the rotary shaft sleeve in the zoom window is provided with a multiple indicating value.
10. A light intensity-based electronic feedback manual zoom lens according to claim 1, wherein: an annular groove is formed in the inner wall of the upper lens barrel, and the top end face of the rotary shaft sleeve is mounted in the annular groove in a jacking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030463.1A CN110646170A (en) | 2019-10-28 | 2019-10-28 | Electronic feedback manual zoom lens based on light intensity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030463.1A CN110646170A (en) | 2019-10-28 | 2019-10-28 | Electronic feedback manual zoom lens based on light intensity |
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| CN110646170A true CN110646170A (en) | 2020-01-03 |
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| CN201911030463.1A Pending CN110646170A (en) | 2019-10-28 | 2019-10-28 | Electronic feedback manual zoom lens based on light intensity |
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| US20100156402A1 (en) * | 2006-06-07 | 2010-06-24 | Vogt Electronic Components Gmbh | Position encoder and a method for detecting the position of a movable part of a machine |
| CN102279008A (en) * | 2010-06-12 | 2011-12-14 | 飞秒光电科技(西安)有限公司 | Optical fiber sensor based on diameter-gradient barrier |
| CN102393557A (en) * | 2011-10-28 | 2012-03-28 | 东莞市普密斯精密仪器有限公司 | Manual zoom-stereo lens capable of automatically detecting fixed zoom ratio |
| CN102789039A (en) * | 2012-08-29 | 2012-11-21 | 苏州天准精密技术有限公司 | Continuous zoom lens with magnification adjustment indicating device |
| CN106104214A (en) * | 2014-12-09 | 2016-11-09 | 株式会社安川电机 | encoder and motor with encoder |
| CN207961689U (en) * | 2018-02-01 | 2018-10-12 | 广州佩迈医学科技有限公司 | A kind of intelligent electric control valve system |
| CN109827599A (en) * | 2019-02-22 | 2019-05-31 | 珠海格力电器股份有限公司 | Grating and photoelectric encoder are determined for photoelectric encoder |
| CN210893622U (en) * | 2019-10-28 | 2020-06-30 | 苏州天准科技股份有限公司 | Electronic feedback manual zoom lens based on light intensity |
-
2019
- 2019-10-28 CN CN201911030463.1A patent/CN110646170A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100156402A1 (en) * | 2006-06-07 | 2010-06-24 | Vogt Electronic Components Gmbh | Position encoder and a method for detecting the position of a movable part of a machine |
| CN102279008A (en) * | 2010-06-12 | 2011-12-14 | 飞秒光电科技(西安)有限公司 | Optical fiber sensor based on diameter-gradient barrier |
| CN102393557A (en) * | 2011-10-28 | 2012-03-28 | 东莞市普密斯精密仪器有限公司 | Manual zoom-stereo lens capable of automatically detecting fixed zoom ratio |
| CN102789039A (en) * | 2012-08-29 | 2012-11-21 | 苏州天准精密技术有限公司 | Continuous zoom lens with magnification adjustment indicating device |
| CN106104214A (en) * | 2014-12-09 | 2016-11-09 | 株式会社安川电机 | encoder and motor with encoder |
| CN207961689U (en) * | 2018-02-01 | 2018-10-12 | 广州佩迈医学科技有限公司 | A kind of intelligent electric control valve system |
| CN109827599A (en) * | 2019-02-22 | 2019-05-31 | 珠海格力电器股份有限公司 | Grating and photoelectric encoder are determined for photoelectric encoder |
| CN210893622U (en) * | 2019-10-28 | 2020-06-30 | 苏州天准科技股份有限公司 | Electronic feedback manual zoom lens based on light intensity |
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