CN110971787B - Focus-adjustable optical sensor - Google Patents
Focus-adjustable optical sensor Download PDFInfo
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- CN110971787B CN110971787B CN201811135363.0A CN201811135363A CN110971787B CN 110971787 B CN110971787 B CN 110971787B CN 201811135363 A CN201811135363 A CN 201811135363A CN 110971787 B CN110971787 B CN 110971787B
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- optical lens
- guide
- box body
- adjusting nut
- optical
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Abstract
The invention provides a focusing optical sensor, which comprises a box body, an image sensor, an optical lens and a lens fixing component for mounting the optical lens, wherein the image sensor and the lens fixing component are arranged in the box body, one end of the optical lens is provided with a guide part in an extending way, one end of the box body is provided with a through hole, part of the guide part is positioned outside the box body through the through hole, the optical axes of the image sensor and the optical lens are coaxial, the outer surface of the box body is provided with an adjusting component matched with the guide part, the guide part is adjusted by the adjusting component to translate along the axial direction of the through hole, the guide part drives the distance between the optical lens and the image sensor to be adjusted, the position of the optical lens is locked after the distance is adjusted, and the distance between the optical lens and the image sensor in the optical sensor is adjusted at any time, clear images can be obtained conveniently, the operation process is convenient, and the structure is simple.
Description
Technical Field
The invention relates to the field of optical focusing, in particular to a focusing optical sensor.
Background
The optical sensor is used for receiving signals in a visible wave band, when the distance of a measuring target or the temperature of a working environment changes, the imaging of the optical sensor becomes unclear, and in order to obtain a clear image, the distance between an optical lens in the optical sensor and the receiving CCD needs to be adjusted at any time. In order to facilitate adjustment and reduce cost, a manual focusing device is designed in the optical sensor. In a common scheme, as shown in fig. 1, the optical sensor comprises a box body 1, a receiving CCD2, a screw 3, an optical lens 4, a screw 5 and a lens cover 6. The optical lens 4 is fixedly connected to the case 1 by a screw 5, the receiving CCD2 is adjusted to be coaxial with the optical axis of the optical lens 4, and the receiving CCD2 is fixed to the case 1 by a screw 3.
The main problems with this optical sensor are: when the distance of the measurement target or the temperature of the working environment changes, the image of the optical sensor becomes unclear.
Disclosure of Invention
The embodiment of the invention provides a focusing optical sensor, which can adjust the distance between an optical lens and an image sensor in the optical sensor at any time, is convenient to obtain clear images, and has the advantages of convenient operation process and simple structure.
The invention provides a focusing optical sensor which comprises a box body, an image sensor, an optical lens and a lens fixing assembly used for installing the optical lens, wherein the image sensor and the lens fixing assembly are arranged inside the box body, one end of the optical lens extends to be provided with a guide part, one end of the box body is provided with a through hole, part of the guide part is positioned outside the box body through the through hole, the optical axes of the image sensor and the optical lens are coaxial, the outer surface of the box body is provided with an adjusting assembly matched with the guide part, the guide part is adjusted through the adjusting assembly to carry out translation along the axial direction of the through hole, the guide part drives the distance between the optical lens and the image sensor to be adjusted, and the optical lens is locked after the distance adjustment is finished.
Optionally, the optical lens further comprises a guide assembly, the guide assembly comprises a first guide groove or a first guide block arranged on the inner wall of the box body and a second guide block or a second guide groove correspondingly arranged on the outer peripheral wall of the optical lens, and the first guide block is arranged in the first guide groove in a reciprocating sliding manner or the second guide block is arranged in the second guide groove in a reciprocating sliding manner.
Optionally, the box be equipped with the gear and with gear coaxial arrangement's driver plate, the surface of guide part extend along the axis direction be equipped with gear engagement's gear groove, through rotating the driver plate drives gear revolve, the gear with gear groove meshing transmission adjustment optical lens's position.
Optionally, the outer surface of the guide portion has an external thread, an adjusting nut capable of being engaged with the external thread and a limiting block for limiting the position of the adjusting nut are arranged on the box body adjacent to the through hole, the adjusting nut is rotated, the adjusting nut rotates around itself under the limitation of the limiting block, and the optical lens converts the circumferential rotation of the adjusting nut into the linear motion of the guide portion under the limitation of the guide assembly, so as to adjust the position of the optical lens.
Optionally, the lens fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are fixed to the outer peripheral wall of the optical lens at intervals, and after the position of the optical lens is adjusted, the first fixing frame and the second fixing frame are fixedly connected to the inner surface of the box body.
Optionally, the adjusting nut is provided with a locking assembly, the locking assembly locks the adjusting nut on the box body, and when the position of the optical lens needs to be adjusted, the unlocking assembly is unlocked and then the adjusting nut is adjusted to rotate.
Optionally, the image sensor is an optical sensor or an infrared light sensor.
Optionally, the device further comprises a driving assembly, the driving assembly is in transmission connection with the adjusting nut, and the driving assembly rotates to drive the adjusting nut to rotate.
Optionally, a position sensor for detecting a position of the optical lens is disposed inside the box.
Optionally, the case, the first guide block or the second guide block is made of 2a12 aluminum material, the lens fixing assembly is made of Q235 steel material, and the adjusting nut is made of H62 copper material.
According to the technical scheme, the embodiment of the invention has the following advantages:
the invention provides a focusing optical sensor, which comprises a box body, an image sensor, an optical lens and a lens fixing component for mounting the optical lens, wherein the image sensor and the lens fixing component are arranged in the box body, one end of the optical lens is provided with a guide part in an extending way, one end of the box body is provided with a through hole, part of the guide part is positioned outside the box body through the through hole, the optical axes of the image sensor and the optical lens are coaxial, the outer surface of the box body is provided with an adjusting component matched with the guide part, the guide part is adjusted by the adjusting component to translate along the axial direction of the through hole, the guide part drives the distance between the optical lens and the image sensor to be adjusted, the position of the optical lens is locked after the distance is adjusted, and the distance between the optical lens and the image sensor in the optical sensor is adjusted at any time, clear images can be obtained conveniently, the operation process is convenient, and the structure is simple.
Drawings
FIG. 1 is a schematic diagram of a prior art arrangement;
FIG. 2 is a schematic diagram of a tunable optical sensor according to the present invention;
FIG. 3 is a front view of FIG. 2;
fig. 4 is a top view of fig. 2.
Reference numerals:
the image sensor comprises a box body 6, an image sensor 7, a first screw 8, an optical lens 9, a first fixing frame 10, a second screw 11, an adjusting nut 12, a limiting block 13, a third screw 14, a second guiding block 15, a fourth screw 16, a second guiding groove 17, a fifth screw 18 and a second fixing frame 19.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 2, the present invention provides a focus-adjustable optical sensor, including a box 6, an image sensor 7, an optical lens 9, and a lens fixing component for mounting the optical lens 9, wherein the image sensor 7 is fixed inside the box 6 by a first screw 8, the lens fixing component is mounted inside the box 6 by a fifth screw 18, one end of the optical lens 9 extends to form a guide portion, one end of the box 6 has a through hole, a portion of the guide portion is located outside the box 6 by the through hole, optical axes of the image sensor 7 and the optical lens 9 are coaxial, an adjusting component matched with the guide portion is disposed on an outer surface of the box 6, the guide portion is adjusted by the adjusting component to perform axial translation along the through hole, the adjusting component moves in a manner similar to a piston, and drives a distance between the optical lens 9 and the image sensor 7 to be adjusted by the guide portion, and locking the position of the optical lens 9 after the distance adjustment is finished.
In order to prevent the optical lens 9 from moving in the circumferential direction during the movement, in this embodiment, the optical lens assembly further includes a guide assembly for limiting the optical lens 9 to move along a straight line, specifically, the guide assembly includes a first guide slot or a first guide block disposed on the inner wall of the box 6, and a second guide block 15 or a second guide block slot 17 correspondingly disposed on the outer circumferential wall of the optical lens 9, which are separated from each other, that is, when the guide slot is disposed on the inner wall of the box 6, the guide block is correspondingly disposed on the optical lens 9, and conversely, when the guide block is disposed on the box 6, the guide slot is correspondingly disposed on the optical lens 9, and after the installation is completed, the first guide block is reciprocally slidably disposed in the first guide slot or the second guide block 15 is reciprocally slidably disposed in the second guide block slot 17, under the limitation of the guide assembly, the optical lens 9 can perform linear displacement inside the box body 6, and rotation is avoided, so that the adjustment process is smoother.
For the distance adjustment between the optical lens 9 and the image sensor 7 driven by the guiding part, two implementation modes are provided:
first, by means of gear engagement
Specifically, the box 6 is equipped with the gear and with gear coaxial arrangement's driver plate, the surface of guide part along the axis direction extend be equipped with gear engagement's gear groove, through rotating the driver plate drives gear revolve, the gear with gear groove meshing transmission adjustment optical lens 9's position.
Second mode of screw connection
The outer surface of the guiding part is provided with an external thread, the box body 6 adjacent to the through hole is provided with an adjusting nut 12 capable of being meshed with the external thread and a limiting block 13 for limiting the position of the adjusting nut 12, the adjusting nut 12 is rotated, the limiting block 13 is fixed on the box body 6 through a third screw 14, the limiting block 13 is in an L shape, the adjusting nut 12 rotates around itself under the limitation of the limiting block and cannot move in the axial direction, the optical lens 9 converts the circumferential rotation of the adjusting nut 12 into the linear motion of the guiding part under the limitation of the guiding component, the position of the optical lens 9 can be adjusted by rotating the adjusting nut 12 until the image sensor 7 obtains a clear image, and the adjusting process is convenient and feasible.
Further, after the position of the optical lens 9 is adjusted to obtain a clear image, the position of the optical lens 9 needs to be fixed, the adjusting nut 12 is provided with a locking component, the locking component locks the adjusting nut 12 on the box body 6, when the position of the optical lens 9 needs to be adjusted, the unlocking component is unlocked, and then the adjusting nut 12 is adjusted to rotate, the locking component can adopt a screw, and no limitation is imposed on the locking component.
For the fixing structure of the optical lens 9, in this embodiment, the lens fixing assembly includes a first fixing frame 10 and a second fixing frame 19, the first fixing frame 10 and the second fixing frame 19 adopt a "C" type structure, and can be disposed on the outer circumferential wall of the optical lens 9 in a spaced manner, the optical lens 9 is fixedly connected with the first fixing frame 10 and the second fixing frame 19 through a second screw 11, so that the optical lens 9 can be kept in balance in the box 6, and the movement is stable, after the position adjustment of the optical lens 9 is completed, the first fixing frame 10 and the second fixing frame 19 are fixedly connected with the inner surface of the box 6 through a fifth screw 18, and before the adjustment of the optical lens 9, the fifth screw 18 needs to be removed to adjust the first fixing frame 10 and the second fixing frame 19.
In the present embodiment, the image sensor 7 is an optical sensor or an infrared light sensor, which is not limited to this.
In order to realize the automatic adjustment of the position of the optical lens 9, the optical lens adjusting device further comprises a driving assembly, the driving assembly can adopt a servo motor, the servo motor is in transmission connection with the adjusting nut 12, for example, gear meshing transmission is adopted, the driving assembly rotates through electric control, and then the adjusting nut 12 is driven to rotate, so that the automation of the position adjustment of the optical lens 9 is realized.
In order to facilitate the detection of the position of the optical lens 9, a position sensor for detecting the position of the optical lens 9 is arranged in the box body 6, the position of the optical lens 9 is detected through the position sensor, the situation that the element is damaged due to excessive adjustment in the adjustment process is avoided, an alarm unit can be additionally arranged, and an alarm prompt is sent when the position reaches a critical value.
For the device provided by the invention, in particular, the box body 6, the first guide block and the second guide block 15 are made of 2A12 aluminum materials; the first screw 8, the first fixing frame 10, the second fixing frame 19, the second screw 11, the limiting block 13, the third screw 14 and the fourth screw 16 are all made of Q235 steel materials, and the adjusting nut 12 is made of H62 copper materials; the image sensor 7 adopts CCD produced by PULNIX in USA, and has model TM-1327 GE; the optical lens 9 is composed of an optical lens group and a housing, the housing is made of aluminum material, the optical lens group is composed of a plurality of optical lenses, and the optical lenses are made of K9 material, which is not limited to this.
The invention provides a focusing optical sensor, which comprises a box body, an image sensor, an optical lens and a lens fixing component for mounting the optical lens, wherein the image sensor and the lens fixing component are arranged in the box body, one end of the optical lens is provided with a guide part in an extending way, one end of the box body is provided with a through hole, part of the guide part is positioned outside the box body through the through hole, the optical axes of the image sensor and the optical lens are coaxial, the outer surface of the box body is provided with an adjusting component matched with the guide part, the guide part is adjusted by the adjusting component to carry out translation along the axial direction of the through hole, the guide part drives the distance between the optical lens and the image sensor to be adjusted, the position of the optical lens is locked after the distance is adjusted, and the distance between the optical lens and the image sensor in the optical sensor is adjusted at any time, clear images can be obtained conveniently, the operation process is convenient, and the structure is simple.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A focusing optical sensor is characterized by comprising a box body, an image sensor, an optical lens and a lens fixing assembly used for installing the optical lens, wherein the image sensor and the lens fixing assembly are arranged inside the box body, one end of the optical lens extends to be provided with a guide part, one end of the box body is provided with a through hole, part of the guide part is positioned outside the box body through the through hole, the optical axes of the image sensor and the optical lens are coaxial, the outer surface of the box body is provided with an adjusting assembly matched with the guide part, the guide part is adjusted through the adjusting assembly to carry out translation along the axial direction of the through hole, the guide part drives the distance between the optical lens and the image sensor to be adjusted, and the optical lens is locked after the distance adjustment is finished;
the optical lens box further comprises a guide assembly, wherein the guide assembly comprises a first guide groove or a first guide block arranged on the inner wall of the box body and a second guide block or a second guide groove correspondingly arranged on the peripheral wall of the optical lens, and the first guide block can be arranged in the first guide groove in a reciprocating sliding mode or the second guide block can be arranged in the second guide groove in a reciprocating sliding mode;
the outer surface of the guide part is provided with an external thread, an adjusting nut which can be meshed with the external thread and a limiting block which is used for limiting the position of the adjusting nut are arranged on a box body adjacent to the through hole, the adjusting nut is rotated, the adjusting nut rotates around the adjusting nut under the limitation of the limiting block, and the optical lens converts the circumferential rotation of the adjusting nut into the linear motion of the guide part under the guide limitation of the guide assembly, so that the position of the optical lens is adjusted.
2. The adjustable-focus optical sensor according to claim 1, wherein the housing has a gear and a dial coaxially mounted with the gear, the outer surface of the guide portion extends along an axial direction to form a gear groove engaged with the gear, the dial is rotated to drive the gear to rotate, and the gear is engaged with the gear groove to drive and adjust the position of the optical lens.
3. The adjustable-focus optical sensor according to claim 1, wherein the lens fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are fixed on the outer peripheral wall of the optical lens at intervals, and the first fixing frame and the second fixing frame are fixedly connected with the inner surface of the housing after the position of the optical lens is adjusted.
4. The adjustable-focus optical sensor according to claim 1, wherein the adjusting nut is provided with a locking component, the locking component locks the adjusting nut on the box body, and when the position of the optical lens needs to be adjusted, the locking component is unlocked and then the adjusting nut is adjusted to rotate.
5. The adjustable focus optical sensor of claim 1, wherein the image sensor is an optical sensor or an infrared light sensor.
6. The adjustable-focus optical sensor of claim 1, further comprising a driving assembly, wherein the driving assembly is in transmission connection with the adjusting nut, and the driving assembly rotates to drive the adjusting nut to rotate.
7. The adjustable-focus optical sensor according to claim 1, wherein a position sensor for detecting the position of the optical lens is provided inside the case.
8. The adjustable-focus optical sensor of claim 1, wherein the housing, the first guide block or the second guide block is made of 2a12 aluminum material, the lens holder assembly is made of Q235 steel material, and the adjusting nut is made of H62 copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135363.0A CN110971787B (en) | 2018-09-28 | 2018-09-28 | Focus-adjustable optical sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135363.0A CN110971787B (en) | 2018-09-28 | 2018-09-28 | Focus-adjustable optical sensor |
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| Publication Number | Publication Date |
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| CN110971787A CN110971787A (en) | 2020-04-07 |
| CN110971787B true CN110971787B (en) | 2022-08-19 |
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| CN201811135363.0A Active CN110971787B (en) | 2018-09-28 | 2018-09-28 | Focus-adjustable optical sensor |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550176A (en) * | 2015-09-22 | 2017-03-29 | 群光电子股份有限公司 | Lens focusing method and optical module |
| CN106772962A (en) * | 2016-12-28 | 2017-05-31 | 中国科学院长春光学精密机械与物理研究所 | A kind of active optics Hartmann focusing lens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5185505B2 (en) * | 2006-03-07 | 2013-04-17 | オリンパスメディカルシステムズ株式会社 | Endoscope system and adapter applied to this endoscope system |
| CN201116960Y (en) * | 2007-11-14 | 2008-09-17 | 比亚迪股份有限公司 | Camera lens die set capable of automatic focusing |
| CN101639606B (en) * | 2008-07-30 | 2013-09-18 | 索尼株式会社 | Optical focusing device |
| CN202631828U (en) * | 2011-11-30 | 2012-12-26 | 彭朝曦 | Lens adjusting ring |
| KR101920130B1 (en) * | 2013-12-04 | 2018-11-19 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | Camera module adjustment method, lens position control device, control device and control method for linear motion device |
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2018
- 2018-09-28 CN CN201811135363.0A patent/CN110971787B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550176A (en) * | 2015-09-22 | 2017-03-29 | 群光电子股份有限公司 | Lens focusing method and optical module |
| CN106772962A (en) * | 2016-12-28 | 2017-05-31 | 中国科学院长春光学精密机械与物理研究所 | A kind of active optics Hartmann focusing lens |
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| CN110971787A (en) | 2020-04-07 |
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