CN110631480A - Manual zoom lens with electronic feedback device based on color sensor - Google Patents
Manual zoom lens with electronic feedback device based on color sensor Download PDFInfo
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- CN110631480A CN110631480A CN201911031190.2A CN201911031190A CN110631480A CN 110631480 A CN110631480 A CN 110631480A CN 201911031190 A CN201911031190 A CN 201911031190A CN 110631480 A CN110631480 A CN 110631480A
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- color sensor
- zoom lens
- manual zoom
- feedback device
- electronic feedback
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- 238000009434 installation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 12
- 239000003086 colorant Substances 0.000 description 9
- ZGHQUYZPMWMLBM-UHFFFAOYSA-N 1,2-dichloro-4-phenylbenzene Chemical compound C1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 ZGHQUYZPMWMLBM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a color sensor-based manual zoom lens with an electronic feedback device, 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; it includes manual zoom lens main part and rather than the electron feedback device who is connected, manual zoom lens main part includes from the last camera lens adaptor that down connects gradually the setting, the upper lens cone, lower lens cone is inside to rotate and is connected with the axle sleeve, electron feedback device is including adorning in the main part base of manual zoom lens main part bottom, the axle sleeve assembly is in the main part base, the axle sleeve divide into integrative outer axle sleeve and interior axle sleeve, the main part base is the ring shape, outer axle sleeve is located outside the main part base, relative rotation is connected between interior axle sleeve and the main part base inner wall, it has reflection of light colored paster to paste at interior axle sleeve outer wall, the color sensor is equipped with on the main part base inner wall, the pin of drawing on the color sensor is connected.
Description
Technical Field
The invention relates to the technical field of optical equipment, in particular to a manual zoom lens with an electronic feedback device based on a color sensor.
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 needs more than three photoelectric receivers, and needs to punch a plurality of holes on the lens barrel, and the electronic feedback system is complex and has high design and production cost.
Disclosure of Invention
In order to solve the problems, the invention provides the manual zoom lens with the electronic feedback device based on the color sensor, 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: a manual zoom lens with an electronic feedback device based on a color sensor comprises a manual zoom lens main body and the 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. And a pin led out from the color sensor is connected with the lower-level equipment.
It is further characterized in that:
the outer wall of the inner shaft sleeve is in an annular gear shape, and the reflective colored patch is attached to the teeth of the inner shaft sleeve;
the LED white lamp is characterized in that a groove is formed in the main body base, a PCB is arranged on the bottom surface of the groove, the color sensor is arranged on the PCB, and an LED white lamp is arranged on the PCB outside the color sensor;
a light shield is arranged on the PCB between the color sensor and the LED white lamp, the top of the light shield is provided with an opening, and the height of the light shield is higher than the installation height of the LED white lamp;
a mounting base is arranged at the bottom of the main body base, and pins on the color sensor are led out from the mounting base;
an LED display lamp is arranged on the main body base and connected with the subordinate equipment;
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;
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.
The invention has the advantages of simple and compact structure, convenient operation and stable performance, the inner shaft sleeve is rotated by combining the manual zoom lens main body, the position information is determined by detecting the color signal of the reflective color patch on the inner shaft sleeve through the color sensor, and the optical magnification information of the manual zoom lens main body at present is calculated through the lower equipment, so that the magnification information is accurately obtained in time, the electronic information feedback is realized, the working efficiency is 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 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 flowchart of the operation of the color sensor.
Detailed Description
As shown in fig. 1 to 4, the manual zoom lens with an electronic feedback device based on a color sensor of the present invention includes a manual zoom lens body and an electronic feedback device connected thereto, wherein the electronic feedback device is connected to a lower device (not shown in the figure) which is a single chip microcomputer; 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, an electronic feedback device comprises a main body base 4 arranged at the bottom of the manual zoom lens main body, the shaft sleeve is assembled inside the main body base 4 and is divided into an outer shaft sleeve 5 and an inner shaft sleeve 6 for convenient distinguishing, the main body base 4 is in a ring shape, the outer shaft sleeve 5 is arranged outside the main body base 4, the inner shaft sleeve 6 is relatively rotatably connected with the inner wall of the main body base 4, namely, the shaft sleeve can freely and concentrically rotate in the main body base 4, a reflective color patch 7 is annularly attached to the outer wall of the inner shaft sleeve 6, the reflective color patch 7 is a high-reflective color plastic patch and can also be replaced by other high-reflective color substances, and the reflective color patch 7 is determined by a zoom interval required by, 8 reflective color patches 7 are attached in the embodiment, namely, the reflective color patches are expressed as 8 different zoom factors; be equipped with color sensor 8 on main part base 4 inner wall, the light of distinguishable different colours, pin 9 that draws on the color sensor 8 is connected with subordinate's equipment, and pin 9 is equipped with 8, and its effect has respectively: 1 control LED white lamp 13, 1 output frequency corresponding to RGB three primary colors, 2 control filter characteristics of 8 chips of the color sensor, 2 control output scale factors, 1 power ground and 1 power positive.
A zoom window 10 is arranged on the lower lens cone 3, an outer shaft sleeve 5 is arranged in the lower lens cone 3, shaft sleeve threads 11 are arranged on the outer shaft sleeve 5, and multiple indicating values are arranged on the outer wall of the outer shaft sleeve 5; an annular groove (not shown) is arranged on the inner wall of the lower lens cone 3, and the top end surface of the outer shaft sleeve 5 is arranged in the annular groove in a jacking mode.
The outer wall of the inner shaft sleeve 6 is in the shape of a ring gear, and the reflective colored patch 7 is attached to the teeth 17 of the inner shaft sleeve 6; the main body base 4 is provided with a groove 18, the bottom surface of the groove 18 is provided with a PCB 12, the color sensor 8 is arranged on the PCB 12, the PCB 12 outside the color sensor 8 is provided with LED white lamps 13, the LED white lamps 13 are used for lighting the reflective color patches 7, 4 LED white lamps 13 are arranged in the embodiment and are arranged on the periphery of the color sensor 8; a light shield 14 is arranged on the PCB 12 between the color sensor 8 and the LED white lamp 13, so that white stray light caused by the LED white lamp 13 can be eliminated, the color sensor 8 only receives reflected light from the reflective colored patch 7, the top of the light shield 14 is open, and the height of the light shield 14 is higher than the installation height of the LED white lamp 13; the interior of the light shield 14 is blackened, and four sides are perpendicular to the color sensor 8; a mounting base 15 is mounted on the bottom of the body base 4, and the pins 9 on the color sensor 8 are led out from the mounting base 15.
In the invention, the light reflecting color patch 7 on the inner shaft sleeve 6 is polished by the LED white lamp 13 on the color sensor 8, the reflected light is reflected to the color sensor 8, the color sensor 8 can recognize the reflected light with color into photocurrent and analog signals of three channels of RGB, then the photocurrent of RGB is converted into square wave frequency of three channels of RGB, namely digital signals, by the photocurrent-frequency converter of the color sensor 8, and three square wave frequencies respectively representing the RGB intensity are input into the single chip microcomputer to recognize the frequency numerical value representing RGB, and the color composition of the light reflecting color patch 7 can be determined by the combination of the RGB frequency numerical values.
Further, as for the reflective color patch 7, when it corresponds to the basic magnification (also referred to as the minimum magnification) of the manual zoom lens, its corresponding reflective color patch 7 is specifically set to "white" for the color sensor 8 to calibrate the white balance; after the manual zoom lens is used for the first time or the mounting base 15 is detached, white balance calibration needs to be performed on the color sensor 8, if the magnification is rotated to the value of multiple 0.7, at this time, the color sensor 8 is aligned to a white plastic patch, white 17 balance calibration is started, more than 3 seconds are waited, after the completion of the calibration, the calibration is completed, and the purpose of white balance calibration is to make the sensitivity of the color sensor 8 to R, G, B consistent, so that the accuracy of the color sensor 8 is improved.
When the invention is used, after white balance correction is carried out once, RGB scale factors can be determined, when the inner shaft sleeve 6 is rotated to a specific multiple, the color sensor 8 can identify color RGB frequency information of the reflective color patch 7, the information is transmitted to the singlechip through the pin 9, the singlechip calculates RGB values, as the detected plastic patch with a specific color can never have continuously changed color setting, a range value which is +/-20 away from the center value is set by taking the obtained color R, G, B value of the object to be detected as the center, the RGB values of the object to be detected are detected again under any ambient light condition, as long as the RGB values fall within the range, the object to be detected can be considered as the object with the specific color, and the method for setting the color value range can effectively improve the identification rate of the object color, wherein, as the color sensor 8 is positioned in the manual zoom lens, frequent white balance calibrations can be avoided.
In addition, the LED display lamp 16 is arranged on the main body base 4, the LED display lamp 16 is connected with the lower-level equipment, the LED display lamp 16 is controlled by the lower-level equipment, and when the lower-level equipment identifies that the signal is the signal which is only when the zooming is accurate in the whole zooming adjusting process, the lower-level equipment feeds back a signal to the LED display lamp 16 to change the color of the signal; for example, when the target multiplying power is 0.7, the outer shaft sleeve 5 with the shaft sleeve thread 11 is manually rotated during zooming, the scale mark of the outer shaft sleeve 5 is aligned with the range of the multiple indication value of 0.7, the position area of the multiplying power of 0.7 is the range of 6mm in total at the positions of the multiple indication value of 0.7, which are 3mm away from the left and right and in the middle respectively, and the range interval is determined by the size of the reflective colored patch 7 on the inner shaft sleeve 6; for example, when the target magnification of the manual zoom lens is set to be 0.7, the outer shaft sleeve 5 is manually rotated during zooming to enable the scale line of the scale value of the multiple in the zoom window 10 to be aligned with the numerical value of the magnification to be 0.7, at the moment, the LED display lamp 16 displays green, the manual zoom lens is shown to be rotated to the accurate position of the magnification to be 0.7, and the color information is fed back and input to the LED display lamp 16 through the pin 9 by the lower-level singlechip; if the LED display lamp 16 displays red, it indicates that the manual zoom lens is not rotated to 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 outer sleeve 5 needs to be continuously rotated until the LED display lamp 16 displays green.
The object color that we usually see is actually the reaction of the object surface absorbing a part of the colored components of the white light (sunlight) that is irradiated on it and reflecting another part of the colored light in the human eye, and the white color is formed by mixing visible lights of various frequencies, that is, the white light contains colored lights of various colors (such as red R, yellow Y, green G, cyan V, blue B, and violet P), and the colors are formed by mixing three primary colors (red, green, and blue) in different proportions, as known from the theory of three primary colors of helmholtz (Helinholtz); as can be seen from the above three primary color sensing principle, if the values of the three primary colors constituting the respective colors are known, the color of the object to be tested can be known, and the color sensor 8 inside the manual zoom lens of the present invention is composed of a single chip on which four types of photodiodes are integrated, with red, green, blue and no filters, respectively, constituting a photodiode array, which allows only a specific primary color to pass when one color filter is selected, and prevents the other primary colors from passing, for example: when the red filter is selected, only red light in the incident light can pass through, and blue light and green light are blocked, so that the light intensity of red light can be obtained; similarly, the light intensity of blue light and green light can be obtained by selecting other filters, then RGB components of light reflected to the color sensor 8 can be analyzed through the three light intensity values, and the current multiplying power of the manual zoom lens is determined by the color of the reflective color patch 7 on the inner shaft sleeve 6 under the corresponding multiplying power of the manual zoom lens.
In summary, the invention adopts the manual zoom lens and the color sensor 8, integrates the color sensor 8 inside the manual zoom lens, fully utilizes the stable dark environment inside the manual zoom lens, enables the color sensor 8 to have the capability of identifying zoom information, namely, the principle of the color sensor 8 is used to enable the manual zoom lens to have the capability of electronic information feedback, and can ensure the long-term accurate and stable work of the color sensor 8, realize the function of outputting the magnification information of the corresponding lens in an electronic feedback manner when the manual zoom lens is zoomed, improve the working efficiency of the manual zoom lens, and the color sensor 8 has low price, reduces the design and production cost of the electronic feedback of the manual zoom lens, and is easy to use and popularize.
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 (8)
1. A manual zoom lens with an electronic feedback device based on a color sensor comprises a manual zoom lens main body and the 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. And a pin led out from the color sensor is connected with the lower-level equipment.
2. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: the outer wall of the inner shaft sleeve is in the shape of an annular gear, and the reflective colored patches are attached to the teeth of the inner shaft sleeve.
3. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: the LED white lamp is characterized in that a groove is formed in the main body base, a PCB is installed on the bottom surface of the groove, the color sensor is installed on the PCB, and an LED white lamp is installed on the PCB outside the color sensor.
4. The manual zoom lens with an electronic feedback device based on a color sensor as claimed in claim 3, wherein: and a light shield is arranged on the PCB between the color sensor and the LED white lamp, the top of the light shield is provided with an opening, and the height of the light shield is higher than the installation height of the LED white lamp.
5. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: and the bottom of the main body base is provided with a mounting base, and the pins on the color sensor are led out from the mounting base.
6. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: and an LED display lamp is arranged on the main body base and is connected with the subordinate equipment.
7. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: 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.
8. The manual zoom lens with an electronic feedback device based on a color sensor according to claim 1, wherein: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031190.2A CN110631480A (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with electronic feedback device based on color sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031190.2A CN110631480A (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with electronic feedback device based on color sensor |
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| CN110631480A true CN110631480A (en) | 2019-12-31 |
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| CN201911031190.2A Pending CN110631480A (en) | 2019-10-28 | 2019-10-28 | Manual zoom lens with electronic feedback device based on color sensor |
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| JP2002287006A (en) * | 2001-03-28 | 2002-10-03 | Fuji Photo Film Co Ltd | Lens position discriminating device |
| CN1611916A (en) * | 2003-10-29 | 2005-05-04 | 苏文威 | Angle detecting sensor and control system adopting said sensor for vehicle |
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