CN114114600B - Novel automatic focusing MTV lens module - Google Patents
Novel automatic focusing MTV lens module Download PDFInfo
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- CN114114600B CN114114600B CN202111478246.6A CN202111478246A CN114114600B CN 114114600 B CN114114600 B CN 114114600B CN 202111478246 A CN202111478246 A CN 202111478246A CN 114114600 B CN114114600 B CN 114114600B
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- base
- adjusting ring
- mirror frame
- sleeving
- outer adjusting
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- 238000007906 compression Methods 0.000 claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 37
- 238000003825 pressing Methods 0.000 claims description 21
- 230000009467 reduction Effects 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 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
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a novel automatic focusing MTV lens module, which comprises a fixed base, a movable lens frame and a compression spring, wherein the fixed base comprises a base main body and a base sleeving part, a base sleeving hole is formed in the core part of the base sleeving part, the movable lens frame and the compression spring are embedded in the base sleeving hole, the upper end part of the base sleeving part is provided with a fixed cover plate, and the upper end part and the lower end part of the compression spring are respectively abutted with the fixed cover plate and the movable lens frame on the corresponding sides; the movable mirror frame is provided with a mirror frame convex column, the pedestal sleeving part is provided with a vertical through groove of the pedestal corresponding to the mirror frame convex column, and the outer end part of the mirror frame convex column passes through the vertical through groove of the pedestal; the periphery of the base sleeving part is sleeved with an outer adjusting ring and a compression ring, the inner wall of the outer adjusting ring is provided with an inner protruding part, a spiral groove is arranged between the compression ring and the inner protruding part corresponding to the convex column of the picture frame in a surrounding manner, and the outer end part of the convex column of the picture frame is embedded into the spiral groove; the base main body is provided with a gear motor component beside the outer adjusting ring, and the gear motor component is in driving connection with the outer adjusting ring. The invention has the advantages of novel structural design, convenient and quick installation and low preparation cost.
Description
Technical Field
The invention relates to the technical field of optical devices, in particular to a novel automatic focusing MTV lens module.
Background
The MTV lens is a lens special for a monitoring camera or a USB camera; for the MTV lens, in the process of photographing and shooting, in order to ensure the definition of a shot photo or image, the focusing and focusing action is required to be performed on the shooting lens of the camera in the use process.
It should be noted that, for the existing MTV lens module, a virtual focus phenomenon is easily generated during focusing or under the influence of external environmental vibration, which affects the image quality.
In addition, for the existing MTV lens module, the defects of unreasonable design, inconvenient assembly and high preparation cost generally exist.
Disclosure of Invention
The invention aims to provide a novel automatic focusing MTV lens module aiming at the defects of the prior art, and the novel automatic focusing MTV lens module has novel structural design, convenient and quick installation and low preparation cost.
In order to achieve the above object, the present invention is achieved by the following technical scheme.
The novel automatic focusing MTV lens module comprises a fixed base, wherein the fixed base comprises a base main body, the upper surface of the base main body is provided with a base sleeving part which extends vertically upwards and is in a circular ring shape, the base main body and the base sleeving part are of an integrated structure, the core part of the base sleeving part is provided with a base sleeving hole which penetrates completely from top to bottom, and the lower end opening of the base sleeving hole extends to the lower surface of the base main body;
the movable mirror frame and the compression spring are embedded in the base sleeving hole, the upper end part of the base sleeving part is provided with a fixed cover plate which is positioned at the upper end side of the compression spring and is in a circular ring shape, the upper end part of the compression spring is abutted with the fixed cover plate, and the lower end part of the compression spring is abutted with the movable mirror frame; the movable mirror frame is provided with three mirror frame convex columns which are respectively and radially outwards protruded and extended, each mirror frame convex column and the movable mirror frame are of an integrated structure, the base sleeving part is respectively provided with a base vertical through groove which is completely penetrated in the radial direction and vertically extended, each base vertical through groove is respectively and upwards opened, and each mirror frame convex column respectively penetrates through the corresponding base vertical through groove;
The outer periphery of the base sleeving part is sleeved with an outer adjusting ring and a pressing ring which are respectively in a circular ring shape, the inner wall of the outer adjusting ring is provided with an inner protruding part protruding inwards, the inner protruding part and the outer adjusting ring are of an integrated structure, the pressing ring is positioned at the inner side of the outer adjusting ring and at the upper end side of the inner protruding part, spiral grooves which extend in a spiral manner are respectively surrounded by corresponding mirror frame protruding columns between the pressing ring and the inner protruding part of the outer adjusting ring, and the outer end parts of the mirror frame protruding columns are respectively embedded into the corresponding spiral grooves; the outer adjusting ring is vertically limited between the fixed cover plate and the upper surface of the base main body, and the compression ring is vertically limited between the inner protruding part and the fixed cover plate;
the base main body is provided with a gear motor component at the side of the outer adjusting ring, and the gear motor component is in driving connection with the outer adjusting ring.
The speed reducing motor assembly comprises a speed reducing box shell which is screwed and fastened on the upper surface of the base main body, a speed reducing box accommodating cavity which is opened towards the side of the outer adjusting ring is formed in the speed reducing box shell, a speed reducing gear set is embedded in the speed reducing box accommodating cavity, and a stepping motor is screwed and fastened on the outer surface of the speed reducing box shell;
the outer adjusting ring is provided with an outer gear part, the outer gear part and the outer adjusting ring are of an integrated structure, an input end gear of the reduction gear set is arranged on a power output shaft of the stepping motor, and an output end gear of the reduction gear set is meshed with the outer gear part of the outer adjusting ring.
The lower end part of the movable mirror frame is provided with a spring positioning part which is in a circular ring shape, the spring positioning part and the movable mirror frame are of an integrated structure, the spring positioning part is provided with a lower end spring positioning groove which is upwards opened and extends annularly along the spring positioning part, and the lower end part of the compression spring is embedded into the lower end spring positioning groove of the spring positioning part.
The upper end spring positioning groove which is downwards opened and extends annularly along the fixed cover plate is formed in the edge part of the inner end of the fixed cover plate, and the upper end part of the compression spring is embedded into the upper end spring positioning groove of the fixed cover plate.
Wherein, the inner wall of the base sleeving hole is provided with a glasses frame limiting stop shoulder which is positioned at the lower end side of the movable glasses frame;
When the movable mirror frame moves down to the lower limit position, the lower surface of the movable mirror frame is abutted with the limit stop shoulder of the mirror frame.
The fixed cover plate is screwed and fastened at the upper end part of the base sleeving part.
Wherein, the core of the movable mirror frame is provided with a lens mounting hole which completely penetrates up and down.
Each convex column of the mirror frame comprises a square boss part and a cylindrical part arranged on the square boss part, wherein the square boss part is positioned in the corresponding vertical through groove of the base, and the cylindrical part extends into the corresponding spiral groove.
The beneficial effects of the invention are as follows: the invention relates to a novel automatic focusing MTV lens module, which comprises a fixed base, wherein the fixed base comprises a base main body, the upper surface of the base main body is provided with a base sleeving part which extends vertically upwards and is in a circular ring shape, the base main body and the base sleeving part are of an integrated structure, a core part of the base sleeving part is provided with a base sleeving hole which penetrates completely from top to bottom, and the lower end opening of the base sleeving hole extends to the lower surface of the base main body; the movable mirror frame and the compression spring are embedded in the base sleeving hole, the upper end part of the base sleeving part is provided with a fixed cover plate which is positioned at the upper end side of the compression spring and is in a circular ring shape, the upper end part of the compression spring is abutted with the fixed cover plate, and the lower end part of the compression spring is abutted with the movable mirror frame; the movable mirror frame is provided with three mirror frame convex columns which are respectively and radially outwards protruded and extended, each mirror frame convex column and the movable mirror frame are of an integrated structure, the base sleeving part is respectively provided with a base vertical through groove which is completely penetrated in the radial direction and vertically extended, each base vertical through groove is respectively and upwards opened, and each mirror frame convex column respectively penetrates through the corresponding base vertical through groove; the outer periphery of the base sleeving part is sleeved with an outer adjusting ring and a pressing ring which are respectively in a circular ring shape, the inner wall of the outer adjusting ring is provided with an inner protruding part protruding inwards, the inner protruding part and the outer adjusting ring are of an integrated structure, the pressing ring is positioned at the inner side of the outer adjusting ring and at the upper end side of the inner protruding part, spiral grooves which extend in a spiral manner are respectively surrounded by corresponding mirror frame protruding columns between the pressing ring and the inner protruding part of the outer adjusting ring, and the outer end parts of the mirror frame protruding columns are respectively embedded into the corresponding spiral grooves; the outer adjusting ring is vertically limited between the fixed cover plate and the upper surface of the base main body, and the compression ring is vertically limited between the inner protruding part and the fixed cover plate; the base main body is provided with a gear motor component at the side of the outer adjusting ring, and the gear motor component is in driving connection with the outer adjusting ring. Through the structural design, the invention has the advantages of novel structural design, convenience and rapidness in installation and low preparation cost.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 is a schematic cross-sectional view of the present invention.
Fig. 1 to 3 include:
1-fixed base 11-base body
12-Base sleeving part 121-base vertical through groove
13-Base sleeve hole 14-frame limit stop shoulder
2-Movable mirror frame 21-convex column of mirror frame
211-Square boss portion 212-cylindrical portion
22-Spring positioning part 221-lower end spring positioning groove
23-Lens mounting hole 3-compression spring
4-Fixed cover 41-upper spring positioning groove
51-Outer adjusting ring 511-inner protruding portion
512-External gear 52-compression ring
53-Spiral groove 6-gear motor assembly
61-Reduction box shell 611-reduction box accommodating cavity
62-A reduction gear set 63-a stepper motor.
Detailed Description
The invention will be described with reference to specific embodiments.
As shown in fig. 1 to 3, a novel auto-focusing MTV lens module comprises a fixed base 1, wherein the fixed base 1 comprises a base main body 11, a base sleeving part 12 which extends vertically upwards and is in a circular ring shape is arranged on the upper surface of the base main body 11, the base main body 11 and the base sleeving part 12 are of an integrated structure, a base sleeving hole 13 which penetrates through the core part of the base sleeving part 12 completely up and down is formed, and the lower end opening of the base sleeving hole 13 extends to the lower surface of the base main body 11.
Wherein, the movable lens frame 2 and the compression spring 3 are embedded in the base sleeving hole 13, the core part of the movable lens frame 2 is provided with a lens mounting hole 23 which completely penetrates up and down, the upper end part of the base sleeving part 12 is provided with a fixed cover plate 4 which is positioned at the upper end side of the compression spring 3 and is in circular ring-shaped, the upper end part of the compression spring 3 is abutted with the fixed cover plate 4, and the lower end part of the compression spring 3 is abutted with the movable lens frame 2; the movable mirror frame 2 is provided with three mirror frame convex columns 21 which are respectively radially outwards protruded and extended, each mirror frame convex column 21 and the movable mirror frame 2 are of an integrated structure, the base sleeving part 12 is respectively provided with a base vertical through groove 121 which is radially and completely penetrated and vertically extended corresponding to each mirror frame convex column 21, each base vertical through groove 121 is respectively opened upwards, and each mirror frame convex column 21 respectively penetrates through the corresponding base vertical through groove 121. It should be explained that the inner wall of the base sleeving hole 13 is provided with a glasses frame limiting stop shoulder 14, and the glasses frame limiting stop shoulder 14 is positioned at the lower end side of the movable glasses frame 2; when the movable mirror frame 2 moves down to the lower limit position, the lower surface of the movable mirror frame 2 is abutted with the mirror frame limiting stop shoulder 14. Preferably, the fixed cover plate 4 is screw-fastened to the upper end portion of the base housing portion 12.
Further, an outer adjusting ring 51 and a pressing ring 52 which are respectively in a circular ring shape are sleeved on the periphery of the base sleeving part 12, an inner protruding part 511 protruding inwards is arranged on the inner wall of the outer adjusting ring 51, the inner protruding part 511 and the outer adjusting ring 51 are of an integrated structure, the pressing ring 52 is positioned on the inner side of the outer adjusting ring 51, the pressing ring 52 is positioned on the upper end side of the inner protruding part 511, spiral grooves 53 which extend in a spiral manner are respectively surrounded between the pressing ring 52 and the inner protruding part 511 of the outer adjusting ring 51 and correspond to the lens frame convex columns 21, and the outer end parts of the lens frame convex columns 21 are respectively embedded into the corresponding spiral grooves 53; the outer adjusting ring 51 is vertically limited between the fixed cover plate 4 and the upper surface of the base body 11, and the pressing ring 52 is vertically limited between the inner protruding portion 511 and the fixed cover plate 4.
It should be noted that each of the lens frame posts 21 includes a square boss portion 211 and a cylindrical portion 22 disposed on the square boss portion 211, the square boss portion 211 is located in the corresponding vertical through groove 121 of the base, and the cylindrical portion 22 extends into the corresponding spiral groove 53. Of course, the structural design of the frame post 21 is not limited to the present invention, i.e. other structural designs of the frame post 21 may be adopted.
In addition, the base body 11 is provided with a gear motor assembly 6 at the side of the outer adjusting ring 51, and the gear motor assembly 6 is in driving connection with the outer adjusting ring 51. The gear motor assembly 6 comprises a gear box shell 61 screwed and fastened on the upper surface of the base body 11, a gear box accommodating cavity 611 which is opened towards the outer adjusting ring 51 side is formed in the gear box shell 61, a gear reduction gear set 62 is embedded in the gear box accommodating cavity 611, and a stepping motor 63 is screwed and fastened on the outer surface of the gear box shell 61; the outer adjusting ring 51 is provided with an external gear portion 512, the external gear portion 512 and the outer adjusting ring 51 are integrally formed, an input gear of the reduction gear set 62 is mounted on a power output shaft of the stepping motor 63, and an output gear of the reduction gear set 62 is meshed with the external gear portion 512 of the outer adjusting ring 51.
In the process of realizing automatic focusing, the stepping motor 63 drives the external gear part 512 of the external adjusting ring 51 through the reduction gear set 62 so as to enable the external adjusting ring 51 to rotate relative to the base sleeving part 12; because the compression ring 52 is vertically limited between the inner protruding part 511 of the outer adjusting ring 51 and the fixed cover plate 4, the compression ring 52 synchronously rotates along with the outer adjusting ring 51 in the process of rotating the outer adjusting ring 51; in the process that the outer adjusting ring 51 and the pressing ring 52 rotate relative to the base sleeving part 12, each spiral groove 53 respectively drives the corresponding lens frame convex column 21 of the movable lens frame 2 to move up and down, so that the movable lens frame 2 moves up and down relative to the base sleeving part 12, the lens of the camera moves up and down, and focusing is further carried out; in this process, the base vertical through-groove 121 of the base sleeve part 12 serves on the one hand to limit the circumference of the corresponding frame post 21 and on the other hand to guide the upward and downward movement of the corresponding frame post 21.
It should be emphasized that the spiral groove 53 of the present invention is formed by surrounding the inner protruding portion 511 of the outer adjusting ring 51 and the pressing ring 52 together, and the outer adjusting ring 51 and the pressing ring 52 are mutually independent components; for the existing injection molding mode of the spiral groove 53, the invention can effectively simplify the structure of the injection mold, thereby reducing the preparation cost.
The base body 11 and the base sleeve part 12 of the present invention are integrally formed, the frame boss 21 and the movable frame 2 of the present invention are integrally formed, the external gear part 512 and the external adjusting ring 51 of the present invention are integrally formed, and in the assembly process of the present invention, the assembly steps are as follows: step 1, sleeving an outer adjusting ring 51 on the periphery of a base sleeving part 12; step 2, after the outer adjusting ring 51 is sleeved, the movable mirror frame 2 and the compression spring 3 are sequentially embedded into the base sleeving holes 13, and the mirror frame convex columns 21 of the movable mirror frame 2 are respectively inserted into the base vertical through grooves 121 of the base sleeving part 12; step 3, after the movable mirror frame 2 and the compression spring 3 are installed, sleeving the compression ring 52 on the periphery of the base sleeving part 12, enabling the compression ring 52 to be inserted into the inner side of the outer adjusting ring 51, and simultaneously ensuring that each mirror frame convex column 21 respectively extends into a spiral groove 53 surrounded by the compression ring 52 and the inner convex part 511; step 4, after the pressing ring 52 is sleeved, the fixed cover plate 4 is arranged at the upper end part of the base sleeve part 12 so as to limit the outer adjusting ring 51 and the pressing ring 52 through the fixed cover plate 4; after the fixed cover plate 4 is installed, the gear motor assembly 6 is installed on the base body 11, and the output end gear of the gear reduction set 62 is meshed with the external gear portion 512 of the outer adjusting ring 51. For the above-mentioned mounting means, it has simple to operate swift advantage, can simplify the module assembly process, reduce the assembly degree of difficulty, reduce the part article processing degree of difficulty, reduce spare part promptly, and then further improve module precision, stability, promote the production line yield, promote production efficiency, reduce material and human cost.
According to the above-mentioned circumstances, through the above-mentioned structural design, the invention has the advantages of novel structural design, convenient and fast installation and low preparation cost.
As a preferred embodiment, as shown in fig. 2 and 3, in order to ensure that the compression spring 3 is stably and reliably installed between the fixed cover plate 4 and the movable mirror frame 2, the present invention adopts the following positioning structure design, specifically: the lower tip of movable picture frame 2 is provided with and is the spring positioning portion 22 of ring shape, and spring positioning portion 22 and movable picture frame 2 are integrated into one piece structure, and spring positioning portion 22 has seted up the lower extreme spring constant head tank 221 that up opening and along spring positioning portion 22 annular extension, and the lower tip of compression spring 3 imbeds in spring positioning portion 22's lower extreme spring constant head tank 221.
Similarly, an upper end spring positioning groove 41 which is opened downwards and extends annularly along the fixed cover plate 4 is formed at the inner end edge part of the fixed cover plate 4, and the upper end part of the compression spring 3 is embedded into the upper end spring positioning groove 41 of the fixed cover plate 4.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (3)
1. A novel automatic focusing MTV lens module is characterized in that: the fixing base comprises a fixing base body (1), wherein the fixing base (1) comprises a base main body (11), a base sleeving part (12) which extends vertically upwards and is in a ring shape is arranged on the upper surface of the base main body (11), the base main body (11) and the base sleeving part (12) are of an integrated structure, a base sleeving hole (13) which penetrates through the core part of the base sleeving part (12) completely vertically is formed in the core part, and the lower end opening of the base sleeving hole (13) extends to the lower surface of the base main body (11);
The movable mirror frame (2) and the compression spring (3) are embedded in the base sleeving hole (13), a fixed cover plate (4) which is arranged on the upper end side of the compression spring (3) and is in a circular ring shape is arranged at the upper end part of the base sleeving part (12), the upper end part of the compression spring (3) is abutted with the fixed cover plate (4), and the lower end part of the compression spring (3) is abutted with the movable mirror frame (2); the movable mirror frame (2) is provided with three mirror frame convex columns (21) which are respectively and radially outwards protruded and extended, each mirror frame convex column (21) and the movable mirror frame (2) are of an integrated structure, a base vertical through groove (121) which is radially and completely penetrated and vertically extended is respectively formed in the base sleeving part (12) corresponding to each mirror frame convex column (21), each base vertical through groove (121) is respectively and upwards opened, and each mirror frame convex column (21) respectively penetrates through the corresponding base vertical through groove (121);
The outer periphery of the base sleeving part (12) is sleeved with an outer adjusting ring (51) and a pressing ring (52) which are respectively in a circular ring shape, the inner wall of the outer adjusting ring (51) is provided with an inner protruding part (511) protruding inwards, the inner protruding part (511) and the outer adjusting ring (51) are of an integrated structure, the pressing ring (52) is positioned at the inner side of the outer adjusting ring (51) and the pressing ring (52) is positioned at the upper end side of the inner protruding part (511), spiral grooves (53) extending spirally are respectively arranged between the pressing ring (52) and the inner protruding part (511) of the outer adjusting ring (51) in a surrounding mode corresponding to each picture frame protruding column (21), and the outer end parts of the picture frame protruding columns (21) are respectively embedded into the corresponding spiral grooves (53); the outer adjusting ring (51) is vertically limited between the fixed cover plate (4) and the upper surface of the base main body (11), and the pressing ring (52) is vertically limited between the inner protruding part (511) and the fixed cover plate (4);
A gear motor component (6) is arranged beside the outer adjusting ring (51) of the base main body (11), and the gear motor component (6) is in driving connection with the outer adjusting ring (51);
The gear motor assembly (6) comprises a gear box shell (61) which is screwed and fastened on the upper surface of the base main body (11), a gear box accommodating cavity (611) which is opened towards the side of the outer adjusting ring (51) is formed in the gear box shell (61), a gear reduction gear set (62) is embedded in the gear box accommodating cavity (611), and a stepping motor (63) is screwed and fastened on the outer surface of the gear box shell (61);
The outer adjusting ring (51) is provided with an outer gear part (512), the outer gear part (512) and the outer adjusting ring (51) are of an integrated structure, an input end gear of the reduction gear set (62) is arranged on a power output shaft of the stepping motor (63), and an output end gear of the reduction gear set (62) is meshed with the outer gear part (512) of the outer adjusting ring (51);
The lower end part of the movable mirror frame (2) is provided with a circular ring-shaped spring positioning part (22), the spring positioning part (22) and the movable mirror frame (2) are of an integrated structure, the spring positioning part (22) is provided with a lower end spring positioning groove (221) which is upwards opened and extends annularly along the spring positioning part (22), and the lower end part of the compression spring (3) is embedded into the lower end spring positioning groove (221) of the spring positioning part (22);
An upper end spring positioning groove (41) which is downwards opened and extends annularly along the fixed cover plate (4) is formed in the edge part of the inner end of the fixed cover plate (4), and the upper end part of the compression spring (3) is embedded into the upper end spring positioning groove (41) of the fixed cover plate (4);
the inner wall of the base sleeving hole (13) is provided with a glasses frame limiting stop shoulder (14), and the glasses frame limiting stop shoulder (14) is positioned at the lower end side of the movable glasses frame (2); when the movable mirror frame (2) moves down to the lower limit position, the lower surface of the movable mirror frame (2) is abutted with the mirror frame limiting stop shoulder (14);
The fixed cover plate (4) is screwed and fastened at the upper end part of the base sleeving part (12).
2. The novel autofocus MTV lens module of claim 1, wherein: the core part of the movable mirror frame (2) is provided with a lens mounting hole (23) which completely penetrates up and down.
3. The novel autofocus MTV lens module of claim 1, wherein: each picture frame convex column (21) comprises a square boss part (211) and a cylindrical part (22) arranged on the square boss part (211), wherein the square boss part (211) is positioned in the corresponding base vertical through groove (121), and the cylindrical part (22) extends into the corresponding spiral groove (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478246.6A CN114114600B (en) | 2021-12-06 | 2021-12-06 | Novel automatic focusing MTV lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478246.6A CN114114600B (en) | 2021-12-06 | 2021-12-06 | Novel automatic focusing MTV lens module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114114600A CN114114600A (en) | 2022-03-01 |
| CN114114600B true CN114114600B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111478246.6A Active CN114114600B (en) | 2021-12-06 | 2021-12-06 | Novel automatic focusing MTV lens module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116299944B (en) * | 2023-03-17 | 2024-04-26 | 东莞市宇瞳光学科技股份有限公司 | Automatic focusing lens module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006011187A (en) * | 2004-06-29 | 2006-01-12 | Nidec Copal Corp | Lens driving device |
| JP2008129597A (en) * | 2006-11-22 | 2008-06-05 | Fuzhun Precision Industry (Shenzhen) Co Ltd | Focusing structure |
| CN103217856A (en) * | 2013-05-10 | 2013-07-24 | 厦门力鼎光电技术有限公司 | Focusing mechanism of monitoring lens |
-
2021
- 2021-12-06 CN CN202111478246.6A patent/CN114114600B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006011187A (en) * | 2004-06-29 | 2006-01-12 | Nidec Copal Corp | Lens driving device |
| JP2008129597A (en) * | 2006-11-22 | 2008-06-05 | Fuzhun Precision Industry (Shenzhen) Co Ltd | Focusing structure |
| CN103217856A (en) * | 2013-05-10 | 2013-07-24 | 厦门力鼎光电技术有限公司 | Focusing mechanism of monitoring lens |
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| Publication number | Publication date |
|---|---|
| CN114114600A (en) | 2022-03-01 |
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