CN110460762B - Adjustable depth of field device of mold monitor and application method thereof - Google Patents
Adjustable depth of field device of mold monitor and application method thereof Download PDFInfo
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- CN110460762B CN110460762B CN201910874766.5A CN201910874766A CN110460762B CN 110460762 B CN110460762 B CN 110460762B CN 201910874766 A CN201910874766 A CN 201910874766A CN 110460762 B CN110460762 B CN 110460762B
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- 238000000034 method Methods 0.000 title claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000001012 protector Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 5
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- 239000000428 dust Substances 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
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Classifications
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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
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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
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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
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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Abstract
The embodiment of the invention discloses a device for adjusting depth of field of a mold monitor, which comprises: the camera comprises a holding part, a rotating part, a lens part, a sensor and a pcb board, wherein the rotating part is embedded in the holding part and is used for providing a rotating fulcrum for the rotation of the rotating part, the sensor and the pcb board are connected through a copper column forming circuit and are arranged on the inner side of the holding part and are used for receiving images formed by the lens part, the lens part and the rotating part are connected through threads, and along with the rotation of the rotating part, the rotating part moves in a sphere-to-sphere manner around the sphere center of the holding part, so that an image surface shot by the lens part is always received by the sensor in a parallel manner. The invention has stable and reliable running structure, fully utilizes the concentric arrangement of the holding component and the rotating component to ensure that the rotating component can carry out 360-degree adjustment, has wide adjustment range, can ensure that the target image can be accurately projected on the photosensitive surface of the sensor, and ensures clear detection.
Description
Technical Field
The invention relates to the technical field of mold detection, in particular to a device for adjusting depth of field of a mold monitor and a use method thereof.
Background
The quality of the mould is the most important forming equipment, and the service life is directly related to the quality and the cost of the product. Therefore, the quality of the die is improved, the die is properly maintained and maintained, the service period of the die is prolonged, and the die is an important weight for reducing the cost and improving the efficiency of the product processing industry of forming equipment. In actual production, the high-value die in each production period is possibly damaged due to the abnormality of product die sticking residue, die slide dislocation, frequent die replacement and the like. The mold protector can effectively solve various potential problems, so that shutdown and mold repair are avoided, the production cost is reduced, the product quality is improved, the high-efficiency rapid production is realized, and the delivery period is ensured.
However, the photosensitive original of the existing die protector lens imaging depth of field device does not have an angle adjusting function, when an included angle exists between a die and a receiving sensor, projection distortion of the die on the receiving sensor is caused, blurring is detected, and the monitoring effect on the die is affected.
Disclosure of Invention
The invention provides a device for adjusting the depth of field of a mold monitor, which at least solves the problem that in the prior art, when a lens monitors at multiple angles, detection is fuzzy due to the fact that an included angle is formed between a receiving sensor and a monitoring target surface.
The invention provides a device for adjusting depth of field of a mold monitor, which is applied to a mold protector, wherein the mold protector comprises a frame and a control system arranged on the frame; the device for adjusting the depth of field of the mold monitor comprises:
a holding member provided on the frame;
The rotating component is embedded on the holding component, and is arranged on the rotatably supported component centering on the spherical center of the holding component and used for providing rotary support for the rotation of the rotating component;
A lens component which is in threaded connection with the rotating component,
A sensor arranged on the holding component and used for receiving the image information shot by the lens component; the pcb board is arranged on the inner side of the holding part, the pcb board is connected with the sensor through a copper column, and the pcb board is connected with the control system through a circuit;
Wherein the rotating member performs a spherical-to-spherical movement around the center of the holding member as the rotating member rotates,
So that the image surface on which the lens unit is to be taken is always received by the receiving surface of the sensor.
In one embodiment, the retaining means comprises a first connection seat element, a sensor seat element, a first locking element and a first limiting element; the first connecting seat element, the connecting base element, the sensor seat element, the first locking element and the first limiting element are coaxially arranged; the first connecting base element is connected with the connecting base element through a fastener, and the connecting base element is connected with the sensor base element through a second fastener; the first locking element is sleeved on the connecting base element, the sensor base element and the first limiting element.
In one embodiment, the connecting base element is a hollow solid of revolution; a spherical rotary groove is formed in the inner side of the connecting base element; the connecting base element is provided with an array of locating pin holes.
In one embodiment, the sensor base element is provided with a first spherical surface and a second spherical surface; the first spherical surface and the second spherical surface are arranged at the same center; the sensor seat element is provided with a through hole for installing a sensor.
In one embodiment, the first limiting element is provided with a limiting rib.
In one embodiment, the rotating component comprises a lens mount, a wafer, and an optical filter; the optical filter is connected with the lens seat through a pressing sheet.
In one embodiment, the lens seat is provided with a third spherical surface and a fourth spherical surface, and the third spherical surface and the fourth spherical surface are arranged concentrically; the fourth spherical surface is outwards provided with a cylindrical surface; and an inner limit ring is arranged at the joint of the fourth spherical surface and the cylindrical surface.
In one embodiment, the pressing piece is provided with a fixing hole, and the fixing hole is provided with a chamfer; the pressing sheet is provided with a notch for positioning during installation.
The invention also discloses a use method of the die monitor adjustable depth of field device, the sensor detects and images the target through the lens component, the lens component is driven to rotate by the rotating component, so that an extension line perpendicular to the first axis of the rotating component and a second extension line perpendicular to the second axis of the holding component and intersecting with the sensor receiving surface are enabled to intersect with each other, and the intersection point falls on an outward extension surface of the photographed image.
Compared with the prior art, the invention has the following advantages:
1) The operation structure is more stable and reliable, the invention fully utilizes the concentric arrangement of the holding component and the rotating component, thus the arrangement can ensure that the rotating component can be adjusted by 360 degrees, the adjustment range is wide, and simultaneously, the target image can be accurately projected to the photosensitive surface of the sensor, thereby ensuring the clear detection;
2) The rotary lens can clearly detect the dies with different angle orientations, reduce loss, save raw material cost, ensure product quality, save working hours, ensure efficiency, ensure accurate delivery, protect expensive dies, avoid shutdown and die repair, reduce production cost, reduce zero loss of the dies and even save maintenance cost;
3) Through setting up the light filter between rotating part and lens part, can be effectual the stray light filtration that carries the lens part, guarantee the light that the sensor received does not have impurity, the light filter can also be effectual with the dust barrier outside prevent the influence of wind dust to the sensor simultaneously, improves life;
4) The inner limit ring is arranged at the joint of the third spherical surface and the cylindrical surface, and the sensor seat element of the limit ring is in interference fit, so that external dust can not enter the inner side of the holding part, the service life of the rotary lens is prolonged, the lens seat can be prevented from being separated from the holding part in the rotary adjustment process, and the stability is reliable;
5) The invention has reasonable design, is convenient for the production and assembly of the whole rotary lens, and is practical, fast and convenient to install in different die equipment.
Drawings
FIG. 1 is a cross-sectional view of a rotary lens structure according to an embodiment of the present invention;
FIG. 2 is an exploded view of a rotary lens according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first connecting base member according to an embodiment of the present invention;
FIG. 4 is a schematic view of a structure of a connecting base member according to an embodiment of the present invention;
FIG. 5 is a schematic view of a sensor base component according to an embodiment of the present invention;
FIG. 6 is a schematic view of a rotary member according to an embodiment of the present invention;
Fig. 7 is a schematic diagram of a junction point when shooting according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an embodiment of the present invention discloses a depth-of-field adjustable device for a mold monitor, which is applied to a mold protector, the mold protector includes a frame and a control system disposed on the frame (both the frame and the control system are well known in the art, and are not described in detail herein), the depth-of-field adjustable device for a mold monitor includes: the camera lens comprises a holding part 1, a rotating part 2, a lens part 3, a sensor 4 and a pcb board 5, wherein the rotating part 2 is embedded in the holding part 1 and is used for providing a rotating pivot for the rotation of the rotating part 2, the sensor 4 and the pcb board 5 are connected through a copper column forming circuit, signals received by the sensor 4 (preferably adopting a sensor photosensitive chip) are transmitted to the pcb board for further processing, the sensor is arranged on the inner side of the holding part 1 and is used for receiving images formed by the lens part 3, the images are converted into digital signals and then transmitted to a control system for processing through a data wire, the lens part 3 and the rotating part 2 are connected through threads, the corresponding lens part 3 can be quickly replaced according to the resolution required in use, and along with the rotation of the rotating part 2, the rotating part 2 moves around the sphere center of the holding part 1 in a sphere-to-sphere direction, so that the image surface shot by the lens part 3 is always received by the sensor 4 in a parallel mode.
In the process of mold detection, as shown in fig. 1 and 2, the lens is adjusted first, specifically, the lens component 3 fixed on the frame by the fastener is held manually, and then the lens component 3 is rotated gently to rotate 360 ° around the center of the sphere of the holding component 1, until the image imaged on the control system is clear, and the adjustment can be stopped. Specifically, when the lens component 3 with the lens structure shoots a mold image, the angle of the lens component 3 is adjusted, so that when the shot mold surface is finally received by the sensor 5, the two surfaces are in a parallel state, and thus, a target image can be accurately projected to the photosensitive surface of the sensor 4 by using a small-hole imaging technology, and the detection definition is ensured. The holding member 1 and the rotating member 2 will be described in detail below.
Referring to fig. 1 to 2, the holding component 1 includes a first connecting base element 11, a connecting base element 12, a sensor base element 13, a first locking element 14 and a first limiting element 15, wherein the first connecting base element 11, the connecting base element 12, the sensor base element 13, the first locking element 14 and the first limiting element 15 are coaxially arranged, the first connecting base element and the connecting base element are fixedly connected through a fastening screw, the connecting base element and the sensor base element are connected through a second fastening screw, the first limiting element 15 and the sensor base element 13 are connected through a pin shaft, a gap is arranged between the first connecting base element and the first limiting element, and the first locking element is sleeved on the connecting base element and the first limiting element for preventing the first connecting base element and the first limiting element from being separated.
Referring to fig. 3, further, the first connecting base element 11 includes a flange 111, and a square fixing block 112 fixed on one side of the flange 111, wherein the square fixing block 112 is provided with a mounting slot 1121 for placing the pcb board 5, three supporting blocks 1122 are arranged on the inner side of the slot 1121 for supporting the pcb board 5, and a T-shaped wiring hole 1123 penetrating the whole square fixing block 112 is arranged on the slot 1121, and one end of a mini 5P data line is inserted into the T-shaped wiring hole 1123 when in use, and the other end is connected with a control system to complete the construction of the whole circuit; in addition, a threaded mounting hole 1124 is provided on the peripheral side of the square fixing block 112 for connecting with a lens fixing rod. Through adopting above-mentioned technical scheme, can effectually reduce the volume of whole camera lens to the equipment is convenient, can carry out quick adjustment according to the mounted position when using, later the rethread data line establishes the connection fast, and it is convenient to use.
Further, referring to fig. 4, the connection base element 12 is hollow and annular, a spherical rotation groove 121 is formed inside the hollow and annular connection base element 12, for providing a rotatable moving space for the rotation of the rotating component 2, one end of the spherical rotation groove 121 is fixedly connected with a base plate 122, a first connection through hole 123 and a second connection through hole 124 are arranged on the base plate in an array manner, when in use, the first connection through hole 123 fixedly connects the connection base element 12 with the first connection base element 11, the connection base element 12 is fixedly connected with the sensor base element 13 through the second connection through hole 124, in addition, a countersunk hole (not shown in the figure) is formed in the second connection through hole 124, so that the whole installation is prevented from being influenced by the extension of a fastener, and a first step 125 and a second step 126 are formed outside the hollow and annular connection base element 12, for facilitating the rapid and accurate locking of the first locking element 14 during the installation; in addition, the connecting base element is provided with a positioning pin hole 127 which is used for installing the positioning pin shaft 6, so that the quick and accurate installation with other elements is convenient.
Further, referring to fig. 5, a first spherical surface 131 and a drum-shaped second spherical surface 132 are disposed on the sensor seat element 13, wherein the first spherical surface 131 and the second spherical surface 132 are concentrically disposed, and the first spherical surface 131 is located below the second spherical surface 132, and when in use, the first spherical surface 131 and the spherical rotation groove 121 are disposed in a surface-to-surface fit manner, and in addition, a rotation space is formed between the second spherical surface 132 and the spherical rotation groove 121, so that 360 ° rotation of the rotating member 2 is facilitated, a sensor mounting hole 133 is disposed on the sensor seat element 13, and a circumferential array threaded hole (not shown) on the periphery of the mounting hole is used for quick connection with the base element 12.
Still further, referring to fig. 2 again, the first locking element 14 includes a locking ring 141 and a locking flange 142, the locking ring 141 and the locking flange 142 are fixedly connected, wherein a first ring buckle 1411 is provided on the locking ring 141 for fixing the first limiting element 15, the first limiting element 15 is fixedly buckled by the first ring buckle 1411 when in use, the locking flange 142 is buckled with the connecting base element 12, the inner diameter of the hollow locking flange 142 is smaller than the outer diameter of the first step 125, and the hollow locking flange 142 is fixed by the first ring buckle 1411 and the locking flange 142, so that the installation and maintenance are convenient.
Still further, referring to fig. 2 again, the first limiting element 15 is hollow and annular, and the first limiting element 15 is provided with a third step 151 for providing a stressed supporting point during fixed installation, and the first limiting element 15 is further provided with a limiting rib 152, and the diameter of the limiting rib 152 is smaller than the spherical diameter of the rotating component 2, so as to prevent the rotating component from falling during rotation.
Referring to fig. 6, the rotary member 2 includes a lens holder 21, a pressing piece 22, and an optical filter 23; the optical filter 23 is connected with the lens seat 21 through the pressing sheet 22, wherein the optical filter 23 is used for filtering stray light, so that the image information finally received by the sensor 4 is ensured not to be influenced by other light rays, and the imaging precision is improved.
Still further, referring to fig. 6, the lens holder 21 is provided with a third spherical surface 211 and a fourth spherical surface 212, the third spherical surface 211 and the fourth spherical surface 212 are concentrically arranged, the specific fourth spherical surface 212 and the first spherical surface 131 of the sensor holder element 13 are arranged face to face, the fourth spherical surface 212 moves around the spherical center of the second spherical surface 132 during rotation, and is in clearance fit with the second spherical surface 132, so that the rotation adjustment is facilitated, the fourth spherical surface 212 is outwardly provided with a cylindrical surface 213, the joint of the fourth spherical surface 212 and the cylindrical surface 213 is provided with an inner limit ring 214, the limit ring 214 is in line contact with the second spherical surface 132, so that the whole sensor holder element 13 is sealed, the space formed between the lens holder 21 and the sensor holder element 13 is isolated from the outside, other substances are prevented from entering the inner side of the lens holder to reduce the imaging precision, the service life is shortened, meanwhile, the falling off of the whole lens in the rotation process can be further ensured by matching the limit ring 214 with the cylindrical surface 213, the top of the lens holder 21 is provided with a lens mounting threaded hole 215, and the lens assembly and the disassembly are convenient.
Further, the pressing piece 22 is provided with a fixing hole 221, a chamfer 2211 is provided on the peripheral side of the fixing hole 221, and a notch (shown in the figure) is provided on the pressing piece for positioning during installation.
Referring back to fig. 1, the lens unit 3 is a prior art and will not be described in detail here.
The sensor 4 detects and images a target through the lens component 3, the lens component 3 is driven by the rotating component 2 to rotate, an extension line B perpendicular to a first axis E of the rotating component 2 and a second extension line C perpendicular to a second axis D of the holding component 1 and intersecting with a receiving surface of the sensor 4 are intersected, and an intersection point F falls on an extension surface A facing outwards of a photographed image.
In operation, as shown in fig. 7, the power supply is turned on, and the system is initialized, at this time, the sensor 4 detects and images a target through the lens component 3, and the lens component 3 is held by a hand and swings gently to rotationally adjust the position of the lens component 3 until an extension line B perpendicular to the first axis E of the lens when the image surface is shot by the lens component 3, an extension line a of the shot image surface, and a second extension line C perpendicular to the second axis D of the holding component 1 and intersecting the receiving surface of the sensor 4 intersect at a point, and at this time, the image displayed on the system is the clearest. The invention has simple whole adjusting process, strong practicability of detecting moulds at different angles and high imaging precision.
To sum up: the invention has more stable and reliable running structure, fully utilizes the concentric arrangement of the holding component and the rotating component, and can ensure that the rotating component can be adjusted by 360 degrees, has wide adjustment range, can ensure that the target image can be accurately projected to the photosensitive surface of the sensor, and ensures clear detection; meanwhile, the molds with different angle and directions can be clearly detected, so that the loss is reduced, the raw material cost is saved, the product quality is ensured, the working hours are saved, the efficiency is ensured, the accurate delivery is ensured, the expensive mold is protected, the shutdown mold repairing is avoided, the production cost is reduced, even the zero loss of the mold is reduced, and the maintenance cost is saved.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application after reading the present specification, and these modifications and variations do not depart from the scope of the application as claimed in the pending claims.
Claims (9)
1. An adjustable depth of field device of a mold monitor, which is applied to a mold protector, the mold protector comprises a frame and a control system arranged on the frame; the device is characterized in that the device for adjusting the depth of field of the mold monitor comprises:
a holding member provided on the frame;
a rotating member fitted to the holding member, the rotating member being rotatably supported with respect to a center of a sphere of the holding member;
the lens component is in threaded connection with the rotating component;
A sensor arranged on the holding component and used for receiving the image information shot by the lens component; the pcb board is arranged on the inner side of the holding part, the pcb board is connected with the sensor through a copper column, and the pcb board is connected with the control system through a circuit;
Wherein the rotating member performs a spherical-to-spherical movement around the center of the holding member as the rotating member rotates,
So that the image surface on which the lens unit is executed is always received by the receiving surface of the sensor;
The retaining component comprises a first connecting seat element, a connecting base element, a sensor seat element, a first locking element and a first limiting element, wherein the first connecting seat element, the connecting base element, the sensor seat element, the first locking element and the first limiting element are coaxially arranged, the first connecting seat element is connected with the connecting base element through a fastener, the connecting base element is connected with the sensor seat element through a second fastening, the first limiting element is connected with the sensor seat element through a pin shaft, a gap is arranged between the first limiting element and the sensor seat element, and the first locking element is sleeved on the connecting base element and the first limiting element and used for preventing the first locking element and the first limiting element from being separated;
the connecting base element is hollow annular, and a spherical rotary groove is arranged on the inner side of the hollow annular connecting base element and used for providing a rotatable movable space for the rotation of the rotating component.
2. The device of claim 1, wherein the array of registration pin holes is provided in the base member.
3. The device of claim 1, wherein the sensor mount member has a first spherical surface and a second spherical surface; the first spherical surface and the second spherical surface are arranged at the same center; the sensor seat element is provided with a through hole for installing a sensor.
4. The device of claim 1, wherein the first stop member has stop ribs thereon.
5. The adjustable depth of field device of claim 1, wherein the rotating member comprises a lens mount, a wafer, and a filter; the optical filter is connected with the lens seat through a pressing sheet.
6. The device of claim 5, wherein the lens mount has a third spherical surface and a fourth spherical surface, the third spherical surface and the fourth spherical surface being concentrically arranged; the fourth spherical surface is outwards provided with a cylindrical surface; and an inner limit ring is arranged at the joint of the fourth spherical surface and the cylindrical surface.
7. The device of claim 5, wherein the sheeting is provided with a fixed hole, and the fixed hole is provided with a chamfer; the pressing sheet is provided with a notch for positioning during installation.
8. A mold monitor adjustable depth of field device according to claim 1, the sensor is characterized by being a plate-shaped sensor.
9. A method of using the adjustable depth of field device for a mold monitor as defined in claim 1, wherein the sensor detects and images a target through the lens member, the lens member is rotated by the rotating member such that an extension line perpendicular to a first axis of the rotating member, a second extension line perpendicular to a second axis of the holding member and intersecting a receiving surface of the sensor intersect the second extension line, and the intersection falls on an extended surface facing outward of the photographed image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874766.5A CN110460762B (en) | 2019-09-17 | 2019-09-17 | Adjustable depth of field device of mold monitor and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910874766.5A CN110460762B (en) | 2019-09-17 | 2019-09-17 | Adjustable depth of field device of mold monitor and application method thereof |
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| CN110460762A CN110460762A (en) | 2019-11-15 |
| CN110460762B true CN110460762B (en) | 2024-09-24 |
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| CN111988515B (en) * | 2020-09-21 | 2021-11-05 | 浙江大华技术股份有限公司 | Lens module and imaging device with same |
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| CN202710898U (en) * | 2012-04-27 | 2013-01-30 | 合硕科技股份有限公司 | Spherical lens device |
| JP2018106024A (en) * | 2016-12-27 | 2018-07-05 | キヤノン株式会社 | Imaging device and imaging system |
| CN210381053U (en) * | 2019-09-17 | 2020-04-21 | 迈兴(厦门)电子有限公司 | Adjustable depth of field device of mould monitor |
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