CN215416230U - Lens structure of motion camera - Google Patents
Lens structure of motion camera Download PDFInfo
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- CN215416230U CN215416230U CN202121915340.9U CN202121915340U CN215416230U CN 215416230 U CN215416230 U CN 215416230U CN 202121915340 U CN202121915340 U CN 202121915340U CN 215416230 U CN215416230 U CN 215416230U
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Abstract
The utility model discloses a moving camera lens structure which comprises a base, a lens frame, a lens group and a locking ring, wherein the lens frame is connected in the base and can axially move back and forth relative to the base to realize focusing, lenses of the lens group are separated from each other and lean against the inside of the lens frame, the locking ring comprises a ring body and a connecting part, the ring body is sleeved on the base, the ring body extends towards the focusing direction of the lens frame to form the connecting part, and the connecting part is detachably fixed on a moving camera. The lens is detachably fixed with the moving camera through the connecting part of the locking ring, and compared with a fixing mode adopting locking, the lens is convenient to assemble and is not easy to loosen.
Description
Technical Field
The utility model relates to the technical field of lenses, in particular to a moving camera lens structure.
Background
With the development of science and technology and the improvement of the living standard of people, motion cameras are used more and more, for example, in some scenes such as motion, events, monitoring and recording. In the motion camera, the camera lens sets up in the foremost of motion camera, therefore the motion camera all can have corresponding camera lens fixed knot to fix the camera lens, current camera lens fixed knot structure mainly adopts the mode that the lock attaches, adopts this kind of mode, and the assembly of camera lens is comparatively troublesome, and takes place to become flexible after using a period of time easily, and simultaneously, current motion camera lens still has the not good problem of waterproof performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a moving camera lens structure convenient to assemble.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a motion camera lens structure, includes base, picture frame, lens group and lock attaches the ring, the picture frame connect in the base, and can be relative the axial back-and-forth movement is made to the base in order to realize the focus, separate mutually between each lens of lens group hold lean on in the picture frame, the lock attaches the ring and includes ring body and connecting portion, ring body cover is located on the base, the ring body toward the focus direction extension of picture frame forms connecting portion, connecting portion detachably is fixed in on the motion camera.
Preferably, the base is of a hollow structure, internal threads are machined on the inner wall of the base, external threads are machined on the outer wall of the mirror frame, and the mirror frame is in threaded connection with the base.
Preferably, the outer side wall of the mirror frame is provided with a limiting groove, the base is fixedly provided with a limiting nail, and the limiting nail extends into the limiting groove to limit the focusing stroke of the mirror frame.
Preferably, the outer wall of the mirror frame is provided with a first groove and a second groove on the front and rear sides of the external thread thereof, the first groove is provided with a first sealing ring, and the second groove is provided with a second sealing ring.
Preferably, the ring body is fixed to the base by screws, threads are machined on the connecting portion, and the connecting portion is screwed to the motion camera.
Preferably, the lens group includes first to eleventh lens elements spaced apart from each other in sequence and supported in the frame, the first to eleventh lens elements are disposed in sequence along an optical axis from an object side to an image side, and each of the first to eleventh lens elements includes an object side surface facing the object side and allowing the imaging light to pass therethrough and an image side surface facing the image side and allowing the imaging light to pass therethrough;
the first lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the second lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the third lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the fourth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the fifth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the sixth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the seventh lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the eighth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the ninth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the tenth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the eleventh lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
a diaphragm is arranged between the sixth lens and the seventh lens, the image-side surface of the second lens is cemented with the object-side surface of the third lens, the image-side surface of the fifth lens is cemented with the object-side surface of the sixth lens, the image-side surface of the seventh lens is cemented with the object-side surface of the eighth lens, and the image-side surface of the ninth lens is cemented with the object-side surface of the tenth lens.
Preferably, the lens holder further comprises a pressing ring, a step part and an internal thread are machined on the inner wall of the front end of the lens frame, and the pressing ring is in threaded connection with the front end of the lens frame so as to press the first lens in the lens frame.
Preferably, a third sealing ring is disposed at a front end of the lens frame, and the third sealing ring is pressed against the stepped portion by the first lens.
Preferably, the shape of first lens is crescent, and it is towards the front end protrusion of picture frame, the department that meets of first lens and second lens is provided with the gum gasket.
After adopting the technical scheme, compared with the background technology, the utility model has the following advantages:
1. the lens is detachably fixed with the moving camera through the connecting part of the locking ring, and compared with a fixing mode adopting locking, the lens is convenient to assemble and is not easy to loosen.
2. According to the utility model, the front side and the rear side of the screw joint of the lens frame and the base are respectively provided with the sealing rings, so that external water mist is not easy to enter the lens of the motion camera, and the waterproof performance of the lens of the motion camera is improved.
3. The first lens is crescent, water mist is not easy to enter the lens from the first lens, and the sealing ring is arranged at the front end of the lens frame, so that the waterproof performance of the lens of the motion camera is further improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic structural view of the frame;
FIG. 5 is a schematic view of the locking ring;
FIG. 6 is a diagram of an optical path of the lens assembly.
Description of reference numerals:
a base 100, a spacing pin 110;
a mirror frame 200, a limit groove 210, a first groove 220, a second groove 230, a first seal ring 240, a second seal ring 250, a step part 260, and a third seal ring 270;
and a clamping ring 500.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, it should be noted that:
the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements of the present invention must have a specific orientation and thus should not be construed as limiting the present invention.
When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.
Examples
Referring to fig. 1 to 3, the present invention discloses a lens structure of a sports camera, which includes a base 100, a frame 200, a lens assembly 300 and a locking ring 400.
The frame 200 is connected to the base 100 and can move back and forth in an axial direction relative to the base 100 to achieve focusing, and the lenses of the lens set 300 are spaced apart from each other and are supported in the frame 200, in this embodiment, the base 100 is a hollow structure, an inner thread is processed on an inner wall of the base 100, an outer thread is processed on an outer wall of the frame 200, the frame 200 is screwed with the base 100, and the frame 200 is rotated to move back and forth relative to the base 100 to achieve focusing adjustment. The outer side wall of the lens frame 200 is provided with a limit groove 210, the base 100 is fixedly provided with a limit nail 110, and the limit nail 110 extends into the limit groove 210 to limit the focusing stroke of the lens frame 200.
As shown in fig. 2 to 5, the locking ring 400 includes a ring body 410 and a connecting portion 420, the ring body 410 is sleeved on the base 100, the ring body 410 extends toward the focusing direction of the lens frame 200 to form the connecting portion 420, and the connecting portion 420 is detachably fixed on the motion camera. In this embodiment, the ring body 410 is fixed to the base 100 by screws 430, threads are formed on the connection portion 420, and the connection portion 420 is screwed to the motion camera, so that the assembly and disassembly are convenient.
The outer wall of the lens frame 200 is provided with a first groove 220 and a second groove 230 on the front and rear sides of the external thread thereof, the first groove 220 is provided with a first sealing ring 240, the second groove 230 is provided with a second sealing ring 250, and external water mist is not easy to enter the lens of the sports camera by the sealing action of the first sealing ring 240 and the second sealing ring 250, so that the waterproof performance of the lens of the sports camera is improved.
In the present specification, the term "a lens element having a positive refractive index (or a negative refractive index)" means that the paraxial refractive index of the lens element calculated by the gauss theory is positive (or negative). The term "object-side (or image-side) of a lens" is defined as the specific range of imaging light rays passing through the lens surface. The determination of the surface shape of the lens can be performed by the judgment method of a person skilled in the art, i.e., by the sign of the curvature radius (abbreviated as R value). The R value may be commonly used in optical design software, such as Zemax or CodeV. The R value is also commonly found in lens data sheets (lens data sheets) of optical design software. When the R value is positive, the object side is judged to be a convex surface; and when the R value is negative, judging that the object side surface is a concave surface. On the contrary, regarding the image side surface, when the R value is positive, the image side surface is judged to be a concave surface; when the R value is negative, the image side surface is judged to be convex.
With reference to fig. 2, 3 and 6, the lens assembly 300 includes a first lens element 310 to an eleventh lens element 3200 which are spaced apart from each other and supported in the frame 200 in sequence, the first lens element 310 to the eleventh lens element 3200 are sequentially disposed along an optical axis from an object side to an image side, and each of the first lens element 310 to the eleventh lens element 3200 includes an object side surface facing the object side and allowing the imaging light to pass therethrough and an image side surface facing the image side and allowing the imaging light to pass therethrough.
The first lens element 310 with negative refractive index has a convex object-side surface and a concave image-side surface;
the second lens element 320 with negative refractive index has a concave object-side surface and a concave image-side surface;
the third lens element 330 with positive refractive index has a convex object-side surface and a convex image-side surface;
the fourth lens element 340 with positive refractive index has a convex object-side surface and a convex image-side surface;
the fifth lens element 350 with positive refractive index has a convex object-side surface and a convex image-side surface;
the sixth lens element 360 with negative refractive index has a concave object-side surface and a concave image-side surface;
the seventh lens element 370 with positive refractive power has a convex object-side surface and a convex image-side surface;
the eighth lens element 380 with negative refractive index has a concave object-side surface and a concave image-side surface;
the ninth lens element 390 has a positive refractive index, and has a convex object-side surface and a convex image-side surface;
the tenth lens element 3100 having a negative refractive power, a concave object-side surface and a concave image-side surface;
the eleventh lens element 3200 with positive refractive index has a convex object-side surface and a convex image-side surface;
a stop 3300 is disposed between the sixth lens element 360 and the seventh lens element 370, the image-side surface of the second lens element 320 is cemented with the object-side surface of the third lens element 330, the image-side surface of the fifth lens element 350 is cemented with the object-side surface of the sixth lens element 360, the image-side surface of the seventh lens element 370 is cemented with the object-side surface of the eighth lens element 380, and the image-side surface of the ninth lens element 390 is cemented with the object-side surface of the tenth lens element 3100. In the utility model, the lens adopts eleven lenses, and the lens has large image surface and large light transmission through the arrangement design of the refractive index and the surface type of each lens, so that more light incoming quantity can be obtained, and the use effect of the lens in a low-light environment is ensured.
The lens structure of the sports camera further includes a pressing ring 500, a stepped portion 260 and an internal thread are formed on an inner wall of the front end of the frame 200, and the pressing ring 500 is screwed with the front end of the frame 200 to press the first lens 310 into the frame 200.
The front end of the lens frame 200 is provided with a third seal 270, and the third seal 270 is pressed against the step 260 by the first lens 310. The first lens 310 is crescent-shaped and protrudes towards the front end of the lens frame 200, the structure of the first lens prevents water mist from entering the lens from the first lens 310, the joint of the first lens 310 and the second lens 320 is provided with a back adhesive gasket 3400, and the back adhesive gasket 3400 can prevent the first lens 310 and the second lens 320 from being directly supported and whitened.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A moving camera lens structure characterized by: including base, picture frame, lens group and lock attach the ring, the picture frame connect in the base to can be relative the axial back-and-forth movement is made to the base in order to realize the focus, separate mutually between each lens of lens group hold lean on in the picture frame, the lock attaches the ring and includes ring body and connecting portion, ring body cover is located on the base, the ring body past the focus direction of picture frame extends and forms connecting portion, connecting portion detachably is fixed in on the motion camera.
2. A moving camera lens structure as claimed in claim 1, wherein: the base is of a hollow structure, internal threads are machined on the inner wall of the base, external threads are machined on the outer wall of the picture frame, and the picture frame is in threaded connection with the base.
3. A moving camera lens structure as claimed in claim 1, wherein: the outer side wall of the mirror frame is provided with a limiting groove, a limiting nail is fixedly arranged on the base and extends into the limiting groove to limit the focusing stroke of the mirror frame.
4. A moving camera lens structure as claimed in claim 2, wherein: the outer wall of the mirror frame is provided with a first groove and a second groove on the front side and the rear side of the external thread of the mirror frame respectively, a first sealing ring is arranged in the first groove, and a second sealing ring is arranged in the second groove.
5. A moving camera lens structure as claimed in claim 1, wherein: the ring body is fixed on the base through screws, threads are machined on the connecting portion, and the connecting portion is in threaded connection with the motion camera.
6. A moving camera lens structure as claimed in claim 1, wherein: the lens group comprises a first lens to an eleventh lens which are separated from each other and lean against the inside of the lens frame in sequence, the first lens to the eleventh lens are arranged in sequence from an object side to an image side along an optical axis, and the first lens to the eleventh lens respectively comprise an object side surface facing the object side and allowing the imaging light to pass through and an image side surface facing the image side and allowing the imaging light to pass through;
the first lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the second lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the third lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the fourth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the fifth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the sixth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the seventh lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the eighth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the ninth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the tenth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the eleventh lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
a diaphragm is arranged between the sixth lens and the seventh lens, the image-side surface of the second lens is cemented with the object-side surface of the third lens, the image-side surface of the fifth lens is cemented with the object-side surface of the sixth lens, the image-side surface of the seventh lens is cemented with the object-side surface of the eighth lens, and the image-side surface of the ninth lens is cemented with the object-side surface of the tenth lens.
7. A moving camera lens structure as claimed in claim 6, wherein: the novel glasses frame is characterized by further comprising a pressing ring, a step part and an internal thread are machined on the inner wall of the front end of the glasses frame, and the pressing ring is in threaded connection with the front end of the glasses frame so as to tightly press the first lens in the glasses frame.
8. A moving camera lens structure as claimed in claim 7, wherein: the front end of the mirror frame is provided with a third sealing ring, and the third sealing ring is pressed on the step part through the first lens.
9. A moving camera lens structure as claimed in claim 8, wherein: the shape of first lens is crescent, and its court the front end protrusion of picture frame, first lens and second lens meet the department and be provided with the gum gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915340.9U CN215416230U (en) | 2021-08-16 | 2021-08-16 | Lens structure of motion camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915340.9U CN215416230U (en) | 2021-08-16 | 2021-08-16 | Lens structure of motion camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215416230U true CN215416230U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121915340.9U Active CN215416230U (en) | 2021-08-16 | 2021-08-16 | Lens structure of motion camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215416230U (en) |
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2021
- 2021-08-16 CN CN202121915340.9U patent/CN215416230U/en active Active
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