CN110737067A - manually-adjustable high-precision infrared electric temperature measuring lens and mounting method thereof - Google Patents
manually-adjustable high-precision infrared electric temperature measuring lens and mounting method thereof Download PDFInfo
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- CN110737067A CN110737067A CN201911043020.6A CN201911043020A CN110737067A CN 110737067 A CN110737067 A CN 110737067A CN 201911043020 A CN201911043020 A CN 201911043020A CN 110737067 A CN110737067 A CN 110737067A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- 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
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- 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)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides high-precision infrared electric temperature measurement lenses capable of being manually adjusted and an installation method thereof, wherein the infrared electric temperature measurement lenses comprise a lens shell and an optical system positioned in the lens shell, the optical system comprises a negative lens A, a negative lens B and a positive lens C which are sequentially arranged along the light self-incidence direction, the air interval between the negative lens A and the negative lens B is 1.5mm, and the air interval between the negative lens B and the positive lens C is 14.8 mm.
Description
Technical Field
The invention relates to high-precision infrared electric temperature measuring lenses capable of being adjusted manually and an installation method thereof.
Background
The infrared temperature measurement is carried out in a non-contact mode, the infrared temperature measurement is converted into optical signals by receiving the thermal radiation of an object and then converted into electric signals for display, the test range of the infrared temperature measurement is large in area, high-temperature points can be found quickly, intuitively and accurately, the temperature rise process in a measurement area is recorded, the work efficiency is effectively and conveniently improved, and the existing infrared temperature measurement lens is large in structure and high in cost and is not suitable for mass production.
Disclosure of Invention
The invention improves the problems, namely the invention designs infrared temperature measuring lenses which are convenient to assemble, suitable for batch production and low in cost.
The specific implementation scheme of the invention is that high-precision infrared electric temperature measurement lenses capable of being manually adjusted comprise a lens shell and an optical system positioned in the lens shell, wherein the optical system comprises a negative lens A, a negative lens B and a positive lens C which are sequentially arranged along the incident direction of light, the air interval between the negative lens A and the negative lens B is 1.5mm, and the air interval between the negative lens B and the positive lens C is 14.8 mm.
, the lens shell comprises a main lens barrel, a negative lens A, a negative lens B and a positive lens C are fixed in the main lens barrel, a main barrel is sleeved outside the main lens barrel, a guide nail is fixedly connected with the outer surface of the main lens barrel, an inclined groove is formed in the outer surface of the main barrel, a cam is sleeved outside the main barrel, a straight groove is formed in the cam, and the upper end of the guide nail penetrates through the inclined groove and extends into the straight groove.
, a groove for limiting each lens is arranged in the main lens barrel, the front side of the negative lens A is in threaded connection with a front pressing ring for limiting the negative lens A, an AB space ring is fixed between the negative lens A and the negative lens B, and the rear side of the positive lens C in the main lens barrel is in threaded connection with a rear pressing ring.
, connecting seats are connected to the rear side of the main cylinder through screws.
Step , the outer fixedly connected with motor frame of main section of thick bamboo, be fixed with the motor on the motor frame, the coaxial axle sleeve that is fixed with of output of motor, fixedly connected with motor gear is sheathe in to the week, the surface of cam has the outside that can with motor gear engagement's ring gear main section of thick bamboo still is provided with micro-gap switch.
, a potentiometer is further fixed on the motor frame, a potentiometer gear is coaxially fixed on the potentiometer, and the potentiometer gear is meshed with the motor gear.
The invention also comprises methods for manually adjusting the high-precision infrared electric temperature measuring lens, which comprises the following steps:
(1) in the embodiment, a main lens barrel is taken and sleeved on a main barrel, a guide nail locked on the main lens barrel penetrates through an inclined groove on the main barrel, then a cam is sleeved, a straight groove on the cam is aligned with the guide nail, the upper end of the guide nail is ensured to be positioned in the straight groove, the cam is rotated after the cam is installed to check the transmission effect, and the cam needs to be confirmed to rotate to drive the guide nail to move in the inclined groove of the main barrel, so that the smooth front and back movement of the main lens barrel is realized;
(2) assembling a connecting seat, wherein the connecting seat and the main cylinder are connected through screws, so that the stability is ensured, the electronic component is installed after the main body is installed, the motor is installed, and then 2 micro switches are installed on the main cylinder in a rack mode;
(3) the negative lens B is mounted on the mounting surface of the main lens barrel with the convex surface of the negative lens B facing upwards, then the AB space ring is placed in the main lens barrel, the lower end of the AB space ring is provided with a limiting groove, the limiting groove is matched with the negative lens B, the upper end of the AB space ring is a plane end for placing the negative lens A, and the relative position of the limiting groove and the plane end ensures the AB air space; after the AB space ring is assembled, the convex surface of the negative lens A is placed upwards on the plane end of the AB space ring and then screwed and fixed by the front pressing ring, finally the positive lens C is assembled by turning over the lens main body, the plane of the positive lens C is assembled upwards on the main lens cone, the fixing position of the pressing ring is screwed and fixed, the main lens cone is provided with a limiting groove, the limiting groove ensures BC air intervals, and the assembling of the optical assembly part is completed.
Compared with the prior art, the invention has the advantages that the lens has simple structure, convenient assembly and suitability for batch production, structurally supports two focusing modes of electric and manual, enables the lens to adapt to detection and monitoring of different distances and is suitable for large-scale pushing.
Drawings
FIG. 1 is a schematic diagram of an optical system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an optical lens according to an embodiment of the invention.
FIG. 3 is a schematic structural diagram of a motor according to an embodiment of the present invention;
fig. 4 is a schematic view of an outline structure of a lens according to an embodiment of the present invention.
In the figure: 1-main lens cone, 2-main barrel, 3-guide nail, 4-connecting seat, 5-rear pressing ring, 6-cam, 7-AB space ring, 8-front pressing ring, 9-motor gear, 10-motor shaft sleeve, 11-elastic gasket, 12-locking nut, 13-1524 motor, 14-potentiometer, 15-motor frame, 16-potentiometer gear, 17-microswitch frame 1, 18-microswitch 1, 19-microswitch frame 2, 20-microswitch 2, A-negative lens A, B-negative lens B and C-positive lens C.
Detailed Description
The invention is described in further detail with reference to the figures and the detailed description.
As shown in fig. 1 to 4, a negative lens a, a negative lens B, and a positive lens C are sequentially disposed in an optical system of the lens along a left-to-right incident direction of light. In the present embodiment, the air space between the negative lens a and the negative lens B is 1.5mm, and the air space between the negative lens B and the positive lens C is 14.8mm in the light incident direction.
In this embodiment, the assembly process body of the lens may be divided into an electronic component assembly part, a machine mount part, and a light mount part.
In this embodiment, the lens housing includes a main barrel, a negative lens a, a negative lens B, and a positive lens C are fixed in the main barrel, a main barrel is sleeved outside the main barrel, a guide pin is fixedly connected to an outer surface of the main barrel, an inclined groove is formed in the outer surface of the main barrel, a cam is sleeved outside the main barrel, a straight groove is formed in the cam, and an upper end of the guide pin penetrates through the inclined groove and extends into the straight groove.
In this embodiment, a groove for limiting each lens is formed in the main lens barrel, a front pressing ring for limiting the negative lens a is connected to the front side of the negative lens a in a threaded manner, an AB space ring is fixed between the negative lens a and the negative lens B, and a rear pressing ring is connected to the rear side of the positive lens C in the main lens barrel in a threaded manner.
In this embodiment, the rear side of the main cylinder is connected with a connecting seat through a screw, and the connecting seat is provided with a camera for connection.
In this embodiment, the outer fixedly connected with motor frame of main section of thick bamboo, be fixed with the motor on the motor frame, the coaxial axle sleeve that is fixed with of output of motor, fixedly connected with motor gear is sheathe in to the week, the surface of cam has the outside that can with motor gear engagement's ring gear main section of thick bamboo still is provided with micro-gap switch.
When the gear-driven cam works, a straight groove is formed in the cam, a chute is formed in the main cylinder, and a gear is arranged on the cam and is in meshing transmission with a motor gear. The motor drives the cam to rotate, and the transmission is transmitted to the main lens cone through the guide pin to drive the main lens cone to move, so that the effect of adjusting the object distance is achieved. A potentiometer is designed beside the motor, the potentiometer can enable the motor to have a preset position point and memorize the motor transmission, the transmission is more accurate, and automatic focusing with different object distances can be realized.
The front end of the main lens barrel is provided with a manual adjusting structure, so that the lens can meet the requirement of electric focusing and can support manual focusing. The focusing structure extends out of the lens cone body, so that focusing operation is facilitated.
In the embodiment, the three lenses of the lens set are all made of germanium materials, so that the cost is low, and the lens set is economical and beneficial to mass production of .
The optical dot array of the lens is 640 x 512, the pixel size is 17um, the imaging field angle of the whole lens reaches 25 degrees x20 degrees, and the detection distance is 0.5 m-infinity.
And a threaded interface of M34x0.75-6g is processed on the outer side of the connecting seat.
During assembly, the main lens barrel is sleeved on the main barrel in the embodiment, the main lens barrel and the main barrel are connected through 3 uniformly distributed guide pins locked by the inclined grooves on the main barrel, then the cam is sleeved on the main lens barrel, and the straight grooves on the cam are aligned with the guide pins. After the cam is installed, the cam is rotated to check the transmission effect, and the cam is required to be confirmed to rotate to drive the guide pin to move in the chute of the main barrel, so that the smooth forward and backward movement of the main lens barrel is realized. Then assemble the connecting seat, pass through 6 screwed connection between connecting seat and the main section of thick bamboo, guarantee stability. And after the main body is installed, the electronic assembly is installed, the motor frame with the motor and the potentiometer assembly installed is assembled on the main cylinder, the hole position of the motor frame is aligned with the screw hole of the main cylinder and fixed by the locking screw, and then 2 micro-switch frames are assembled on the corresponding positions of the main cylinder and fixed by the locking screw. And after the gear meshing condition is checked to be qualified after the assembly is finished, the assembly of the machine-mounted part is finished.
In the present embodiment, the light-packaging part is mainly as follows: the negative lens B is installed on the installation surface of the main lens cone by taking the convex surface of the negative lens B upwards, then the large end of the AB space ring is placed into the main lens cone upwards, the lower end of the AB space ring is provided with a limiting groove, the limiting groove is matched with the negative lens B, the upper end of the AB space ring is a plane end for placing the negative lens A, and the relative position of the limiting groove and the plane end ensures the AB air interval. After the AB space ring is assembled, the convex surface of the negative lens A faces upwards and is placed on the plane end of the AB space ring, and then the negative lens A is screwed and fixed by the front pressing ring. And finally, turning over the lens main body to assemble the positive lens C, assembling the plane of the positive lens C upwards on the main lens cone, using the positive lens C, screwing the pressing ring to a fixed position, arranging a limiting groove on the main lens cone, and ensuring BC air intervals by the limiting groove to finish the assembly of the optical assembly part.
In this embodiment, the assembled lens needs to pass through bonding wires, routing, imaging test, performance debugging, and the like to ensure the qualification of the lens.
In the present embodiment, the optical system constituted by the lens group achieves the following technical criteria:
(1) the working wave band is as follows: 8-12 μm; (2) focal length: f' =25 mm; (3) a detector: the long-wave infrared non-refrigeration type 640 multiplied by 512, 17 mu m and below can be adapted; (4) the field angle: 25 ° x20 °; (5) relative pore diameter D/f': 1/1.0;
in this embodiment, the lens is designed with two focusing modes, namely electric focusing and manual focusing.
In this embodiment, the lens is designed with a potentiometer, which enables the motor to have a predetermined position and memorizes the motor transmission, so that the transmission is more accurate, and automatic focusing with different object distances can be realized.
In the embodiment, the connecting seat is designed with a screw thread with the length of M34x0.75-6g to be matched with the camera.
Any technical solutions disclosed herein are preferably numerical ranges if they disclose numerical ranges, and it should be understood by those skilled in the art that the preferred numerical ranges are only ones which are obvious or representative of technical effects of many practical numerical values.
If the terms , second, etc. are used herein to describe components, it should be understood by those skilled in the art that the terms , second, etc. are used merely to distinguish one component from another in a descriptive sense and are not intended to have a special meaning unless otherwise indicated.
Meanwhile, if the invention discloses or relates to parts or structural members fixedly connected with each other, the fixed connection can be understood as a detachable fixed connection (for example, a connection by using bolts or screws) or a non-detachable fixed connection (for example, riveting or welding) unless otherwise stated, and of course, the fixed connection can also be replaced by type structures (for example, manufactured by using a casting process in a body forming mode) (except that a body forming process obviously cannot be adopted).
In addition, the terms used in any technical solutions disclosed above for indicating the position relationship or shape include the similar, analogous or approximate states or shapes unless otherwise stated.
Any component provided by the invention can be assembled from a plurality of separate components or can be a separate component manufactured by body forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (8)
- high-precision infrared electric temperature measuring lens capable of being adjusted manually, which is characterized by comprising a lens shell and an optical system positioned in the lens shell, wherein the optical system comprises a negative lens A, a negative lens B and a positive lens C which are sequentially arranged along the incident direction of light, the air interval between the negative lens A and the negative lens B is 1.5mm, and the air interval between the negative lens B and the positive lens C is 14.8 mm.
- 2. The high-precision infrared electric temperature measurement lens capable of being adjusted manually according to claim 1, wherein the lens housing includes a main barrel, a negative lens A, a negative lens B and a positive lens C are fixed in the main barrel, a main barrel is sleeved outside the main barrel, a guide pin is fixedly connected to the outer surface of the main barrel, an oblique groove is formed in the outer surface of the main barrel, a cam is sleeved outside the main barrel, a straight groove is formed in the cam, and the upper end of the guide pin penetrates through the oblique groove and extends into the straight groove.
- 3. The high-precision infrared electric temperature measurement lens capable of being adjusted manually according to claim 2, wherein the main barrel has a groove for limiting each lens, the front side of the negative lens A is connected with a front pressing ring for limiting the negative lens A in a threaded manner, an AB space ring is fixed between the negative lens A and the negative lens B, and the rear side of the positive lens C in the main barrel is connected with a rear pressing ring in a threaded manner.
- 4. The kinds of infrared electric thermometric lens capable of being adjusted manually with high precision according to claim 2 or 3, wherein the rear side of the main cylinder is screwed with a connecting seat.
- 5. The high-precision infrared electric temperature measurement lens capable of being adjusted manually according to claim 3, wherein a motor frame is fixedly connected to the outside of the main barrel, a motor is fixed on the motor frame, a shaft sleeve is coaxially fixed to the output end of the motor, a motor gear is fixedly connected to the shaft sleeve, and a micro switch is further arranged on the outer surface of the cam and outside the main barrel, wherein the gear ring is capable of being meshed with the motor gear.
- 6. The high-precision infrared electric temperature measurement lens capable of being adjusted manually according to claim 2, wherein a potentiometer is further fixed on the motor frame, a potentiometer gear is coaxially fixed on the potentiometer, and the potentiometer gear is meshed with the motor gear.
- 7. The high-precision infrared electric temperature measurement lens capable of being adjusted manually according to claim 3, wherein a threaded interface is formed on the outer side of the connecting seat.
- 8, method for installing manually adjustable high-precision infrared electric temperature measuring lens as claimed in claim 4, which comprises the following steps:(1) in the embodiment, a main lens barrel is taken and sleeved on a main barrel, a guide nail locked on the main lens barrel penetrates through an inclined groove on the main barrel, then a cam is sleeved, a straight groove on the cam is aligned with the guide nail, the upper end of the guide nail is ensured to be positioned in the straight groove, the cam is rotated after the cam is installed to check the transmission effect, and the cam needs to be confirmed to rotate to drive the guide nail to move in the inclined groove of the main barrel, so that the smooth front and back movement of the main lens barrel is realized;(2) assembling a connecting seat, wherein the connecting seat and the main cylinder are connected through screws, so that the stability is ensured, the electronic component is installed after the main body is installed, the motor is installed, and then 2 micro switches are installed on the main cylinder in a rack mode;(3) the negative lens B is mounted on the mounting surface of the main lens barrel with the convex surface of the negative lens B facing upwards, then the AB space ring is placed in the main lens barrel, the lower end of the AB space ring is provided with a limiting groove, the limiting groove is matched with the negative lens B, the upper end of the AB space ring is a plane end for placing the negative lens A, and the relative position of the limiting groove and the plane end ensures the AB air space; after the AB space ring is assembled, the convex surface of the negative lens A is placed upwards on the plane end of the AB space ring and then screwed and fixed by the front pressing ring, finally the positive lens C is assembled by turning over the lens main body, the plane of the positive lens C is assembled upwards on the main lens cone, the fixing position of the pressing ring is screwed and fixed, the main lens cone is provided with a limiting groove, the limiting groove ensures BC air intervals, and the assembling of the optical assembly part is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043020.6A CN110737067A (en) | 2019-10-30 | 2019-10-30 | manually-adjustable high-precision infrared electric temperature measuring lens and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043020.6A CN110737067A (en) | 2019-10-30 | 2019-10-30 | manually-adjustable high-precision infrared electric temperature measuring lens and mounting method thereof |
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| CN110737067A true CN110737067A (en) | 2020-01-31 |
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| CN201911043020.6A Pending CN110737067A (en) | 2019-10-30 | 2019-10-30 | manually-adjustable high-precision infrared electric temperature measuring lens and mounting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678607A (en) * | 2020-05-21 | 2020-09-18 | 电子科技大学 | Turbine blade surface temperature measuring device based on rotary prism |
-
2019
- 2019-10-30 CN CN201911043020.6A patent/CN110737067A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678607A (en) * | 2020-05-21 | 2020-09-18 | 电子科技大学 | Turbine blade surface temperature measuring device based on rotary prism |
| CN111678607B (en) * | 2020-05-21 | 2021-06-01 | 电子科技大学 | Turbine blade surface temperature measuring device based on rotary prism |
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