CN111669485A - Voltage stabilization component, lens and camera - Google Patents
Voltage stabilization component, lens and camera Download PDFInfo
- Publication number
- CN111669485A CN111669485A CN202010388661.1A CN202010388661A CN111669485A CN 111669485 A CN111669485 A CN 111669485A CN 202010388661 A CN202010388661 A CN 202010388661A CN 111669485 A CN111669485 A CN 111669485A
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- CN
- China
- Prior art keywords
- lens
- pressing ring
- exhaust passage
- pressure stabilizing
- mounting groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Abstract
The invention discloses a pressure stabilizing component, which is applied to a camera mechanism and belongs to the technical field of cameras. The air pressure in the inner cavity can be balanced by utilizing the exhaust channel and the pressure stabilizing component, so that the phenomenon that the lens or an optical device is extruded by air caused by temperature change is avoided, dust, moist air, light and the like can be prevented from entering the lens and the image module, and the good imaging quality of the lens and the image module is ensured. The invention also discloses a lens and a camera adopting the voltage stabilizing component.
Description
Technical Field
The invention relates to the technical field of cameras, in particular to a voltage stabilizing component, a lens and a camera.
Background
In recent years, with the continuous development of science and technology, the application field of the lens is widened, and besides the camera, the lens is also equipped in portable electronic equipment, security monitoring equipment, an advanced driving assistance system and the like.
The inside inner chamber that generally can form of mechanism of making a video recording, when ambient temperature risees, the air of inner chamber will receive the temperature to influence and expand, and atmospheric pressure grow leads to air extrusion lens, and the lens warp the back and can lead to the change of focus, influences imaging quality. Currently, an exhaust channel is generally disposed on the surface of the housing of the camera mechanism to reduce the air pressure in the cavity when the air expands.
Although the problem that air extrudes the lens is solved through the exhaust channel, due to the existence of the exhaust channel, external dust, humid air and the like can enter the lens or the lens base and are attached to the lens or the sensor, the performance of an optical system is reduced, and the dustproof and moistureproof effects are poor.
Disclosure of Invention
One object of the present invention is to provide a voltage stabilizing member capable of improving the dustproof and moistureproof effects of a camera mechanism.
The utility model provides a steady voltage part, is applied to the mechanism of making a video recording, it is equipped with exhaust passage to make a video recording in the mechanism, the mechanism inside of making a video recording is equipped with the inner chamber, the inner chamber with exhaust passage intercommunication, steady voltage part includes seal gasket and clamping ring, seal gasket sets up exhaust passage department is used for the shutoff exhaust passage, the clamping ring is used for fixing seal gasket's edge, works as when the gas expansion of inner chamber, seal gasket takes place to deform.
The invention has the beneficial effects that: the air pressure in the inner cavity can be balanced by utilizing the exhaust channel and the pressure stabilizing component, so that the phenomenon that the lens or an optical device is extruded by air caused by temperature change is avoided, dust, moist air, light and the like can be prevented from entering the lens and the image module, and the good imaging quality of the lens and the image module is ensured.
In addition, according to the voltage stabilizing component provided by the invention, the following additional technical characteristics can be provided:
further, the sealing gasket comprises an annular part and a flexible part, the thickness of the flexible part is smaller than that of the annular part, the flexible part is used for deforming, and the annular part is used for being in contact with the pressing ring.
Further, the flexible portion satisfies:
20％*V<πr2h<25％*V，
wherein r is the radius of the flexible portion, h is the maximum deformation of the flexible portion, and V is the volume of the lumen.
Further, an annular groove is formed in the contact surface of the pressing ring and the annular part, and the annular part is arranged in the annular groove.
The invention also provides a lens, which adopts the pressure stabilizing component and comprises a lens barrel and a lens, wherein the inner cavity consists of the lens and the lens barrel, the exhaust channel is arranged on the surface of the lens barrel, and the pressure stabilizing component is arranged on the outer surface of the lens barrel.
Furthermore, a first mounting groove is formed in the outer surface of the lens barrel, which is located at the exhaust passage, the sealing gasket and the pressing ring are both arranged in the first mounting groove, the sealing gasket is arranged between the exhaust passage and the pressing ring, and the pressing ring is in interference fit with the inner wall of the first mounting groove.
The invention also provides a camera which adopts the pressure stabilizing component, the pressure stabilizing component comprises a lens base and a substrate, the inner cavity consists of the lens base and the substrate, the exhaust channel is arranged on the lens base, and the pressure stabilizing component is arranged on the inner wall of the lens base.
Furthermore, a second mounting groove is formed in the inner wall of the lens base and located at the exhaust passage, the sealing gasket and the pressing ring are both arranged in the second mounting groove, the sealing gasket is arranged between the exhaust passage and the pressing ring, and the pressing ring is in interference fit with the inner wall of the second mounting groove.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a voltage stabilization member of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the voltage stabilization member of FIG. 1;
fig. 3 is a schematic structural diagram of a lens barrel according to a second embodiment of the present invention;
fig. 4 is a rear view of the lens barrel of fig. 3;
FIG. 5 is a schematic cross-sectional view A-A of FIG. 4;
fig. 6 is a schematic structural diagram of a camera according to a third embodiment of the present invention;
FIG. 7 is a half-sectional view of the camera head of FIG. 6;
FIG. 8 is an enlarged view of a portion of area A of FIG. 7;
in the figure: 1-a pressure stabilizing part, 11-a sealing gasket, 111-a flexible part, 112-an annular part, 12-a pressing ring, 121-an annular groove, 2-a lens, 21-a lens barrel, 22-a lens, 23-a first mounting groove, 3-a camera, 31-a lens base, 32-a base plate, 33-a second mounting groove, 4-an exhaust channel and 5-an inner cavity.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" 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. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed or operated in a particular manner, and is not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a first embodiment of the present invention provides a pressure stabilizing component 1, which is applied to a camera mechanism, wherein an exhaust channel is arranged on the camera mechanism, an inner cavity is arranged inside the camera mechanism, the inner cavity is communicated with the exhaust channel, the pressure stabilizing component 1 includes a sealing gasket 11 and a pressing ring 12, the sealing gasket 11 is arranged at the exhaust channel and is used for blocking the exhaust channel, the pressing ring 12 is used for fixing an edge of the sealing gasket 11, and when gas in the inner cavity expands, the sealing gasket deforms.
The invention has the advantages that the air pressure in the inner cavity can be balanced by utilizing the exhaust channel and the pressure stabilizing component 1, so that the phenomenon that air extrudes a lens or an optical device due to temperature change is avoided, dust, moist air, light and the like enter the lens and the image module is avoided, and the good imaging quality of the lens and the image module is ensured.
Specifically, the sealing gasket 11 includes an annular portion 112 and a flexible portion 111, the thickness of the flexible portion 111 is smaller than that of the annular portion 112, the flexible portion 111 is configured to deform, and the annular portion 112 is configured to contact with the pressing ring 12.
It will be appreciated that the annular portion 112 is a thicker portion and the flexible portion 111 is a thinner portion to facilitate deformation.
In this embodiment, the sealing gasket 11 is made of silicone rubber, latex or natural rubber, and has an elastic modulus of about 1.2GPa and a Poisson's ratio of 0.48.
It should be noted that, when the external temperature rises or falls, the air in the inner cavity expands or contracts under the influence of the temperature, and then the sealing gasket 11 is pushed to elastically deform, so as to balance the internal and external air pressure, and ensure that the lens maintains good imaging quality, and the sealing gasket 11 can effectively shield the entering of light, thereby avoiding the influence of the light on the imaging quality.
In order to enable the deformation of the sealing gasket 11 to meet the requirement, the flexible portion 111 needs to meet:
20％*V<πr2h<25％*V，
where r is a radius of the flexible portion 111, h is a maximum deformation amount of the flexible portion 111, and V is a volume of the lumen. The deformation of the flexible portion 111 is specifically a distance between a center point of the deformed flexible portion 111 and a center point in an initial state.
When the above conditional expressions are satisfied, the flexible portion 111 has moderate sensitivity to air expansion, and does not excessively deform due to slight air expansion or hardly deform the gasket 11 when air greatly expands.
In addition, the contact surface of the pressing ring 12 and the annular part 112 is provided with an annular groove 121, and the annular part 112 is arranged in the annular groove 121.
Referring to fig. 3 to 5, a lens 2 according to a second embodiment of the present invention includes a lens barrel 21 and a lens 22, wherein the inner cavity 5 is formed by the lens 22 and the lens barrel 21, the air exhaust channel 4 is disposed on a surface of the lens barrel 21, and the pressure stabilizing member 1 is disposed on an outer surface of the lens barrel 21.
In addition, a first mounting groove 23 is formed in the outer surface of the lens barrel 21 at the exhaust passage 4, the sealing gasket 11 and the pressing ring 12 are both arranged in the first mounting groove 23, the sealing gasket 11 is arranged between the exhaust passage 4 and the pressing ring 12, and the pressing ring 12 is in interference fit with the inner wall of the first mounting groove 23.
It will be appreciated that the sealing gasket 11 is used to block the vent passage 4 and the clamping ring 12 is used to fix the position of the sealing gasket 11.
In the present embodiment，r＝1.9mm，V＝511mm3The thickness of the flexible part is 0.1mm, namely, the embodiment needs to be selected to satisfy 9.02mm<h<The flexible part 111 with the thickness of 11.3mm has the deformation temperature range of 0-40 ℃.
When the lens 2 of the present embodiment is used to perform imaging in an environment of 30 ℃, the obtained image quality is good, which shows that the present embodiment has achieved the effect of balancing the air pressure inside and outside the lens 2.
The present invention provides a pair of comparative examples, which are basically the same as the second embodiment, except that:
the sealing gasket 11 satisfies 10% V<πr2h<15% V, i.e. the flexible part 111 satisfies 4.51mm at 0-40 deg.C<h<6.76mm。
The lens 2 of the comparative example was used to perform imaging at 30 ℃, and the quality of the obtained image was moderate, which indicates that the effect of balancing the air pressure inside and outside the lens 2 of the comparative example is slightly worse than that of the second embodiment.
Referring to fig. 6 to 8, a third embodiment of the present invention provides a camera 3, which employs the pressure stabilizing component 1 of the first embodiment, and includes a lens holder 31 and a base plate 32, wherein the inner cavity 5 is composed of the lens holder 31 and the base plate 32, the exhaust channel 4 is disposed on the lens holder 31, and the pressure stabilizing component 1 is disposed on an inner wall of the lens holder 31.
Specifically, a second mounting groove 33 is formed in the inner wall of the lens holder 31 at the exhaust passage 4, the sealing gasket 11 and the pressing ring 12 are both disposed in the second mounting groove 33, the sealing gasket 11 is disposed between the exhaust passage 4 and the pressing ring 12, and the pressing ring 12 is in interference fit with the inner wall of the second mounting groove 33.
In this embodiment, r is 1.8mm, and V is 358mm3The thickness of the flexible part is 0.1mm, namely, the thickness of the flexible part is required to be selected to meet the requirement of 7.04mm<h<The 8.79mm flexible part 111 has a deformation temperature range of 0-40 ℃.
When the lens 2 of the present embodiment is used to perform imaging in an environment of 30 ℃, the obtained image quality is good, which shows that the present embodiment has achieved the effect of balancing the air pressure inside and outside the lens 2.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The utility model provides a steady voltage part, is applied to the mechanism of making a video recording, it is equipped with exhaust passage to make a video recording in the mechanism, the mechanism inside of making a video recording is equipped with the inner chamber, the inner chamber with exhaust passage intercommunication, its characterized in that, steady voltage part includes seal gasket and clamping ring, seal gasket sets up exhaust passage department is used for the shutoff exhaust passage, the clamping ring is used for fixing seal gasket's edge, works as when the gas expansion of inner chamber, seal gasket takes place to deform.
2. The pressure stabilizing member according to claim 1, wherein the seal gasket includes an annular portion having a smaller thickness than the annular portion and a flexible portion for being deformed, the annular portion being adapted to be in contact with the pressing ring.
3. The voltage stabilization member according to claim 2, wherein the flexible portion satisfies:
20％*V<πr2h<25％*V，
wherein r is the radius of the flexible portion, h is the maximum deformation of the flexible portion, and V is the volume of the lumen.
4. The pressure stabilizing member according to claim 2, wherein a contact surface of the pressing ring with the annular portion is provided with an annular groove in which the annular portion is disposed.
5. A lens barrel, the pressure stabilizing component according to any one of claims 1 to 4, wherein the pressure stabilizing component comprises a lens barrel and a lens, the inner cavity is composed of the lens and the lens barrel, the air exhaust channel is arranged on the surface of the lens barrel, and the pressure stabilizing component is arranged on the outer surface of the lens barrel.
6. The lens barrel according to claim 5, wherein a first mounting groove is formed in the outer surface of the lens barrel at the exhaust passage, the sealing gasket and the pressing ring are both disposed in the first mounting groove, the sealing gasket is disposed between the exhaust passage and the pressing ring, and the pressing ring is in interference fit with an inner wall of the first mounting groove.
7. A camera adopts the pressure stabilizing component of any one of claims 1 to 4, and is characterized by comprising a lens base and a base plate, wherein the inner cavity consists of the lens base and the base plate, the exhaust channel is arranged on the lens base, and the pressure stabilizing component is arranged on the inner wall of the lens base.
8. The camera head according to claim 7, wherein a second mounting groove is formed in the inner wall of the lens holder at the exhaust passage, the sealing gasket and the pressing ring are both disposed in the second mounting groove, the sealing gasket is disposed between the exhaust passage and the pressing ring, and the pressing ring is in interference fit with the inner wall of the second mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388661.1A CN111669485B (en) | 2020-05-09 | 2020-05-09 | Voltage stabilization component, lens and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388661.1A CN111669485B (en) | 2020-05-09 | 2020-05-09 | Voltage stabilization component, lens and camera |
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| CN111669485A true CN111669485A (en) | 2020-09-15 |
| CN111669485B CN111669485B (en) | 2021-10-26 |
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Effective date of registration: 20211115 Address after: 330096 No. 1699, Jingdong Avenue, Nanchang high tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Lianchuang Electronic Technology Co., Ltd Address before: 330096 No. 1699, Jingdong Avenue, high tech Development Zone, Nanchang City, Jiangxi Province Patentee before: Jiangxi Lianchuang Electronics Co., Ltd |
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Effective date of registration: 20211228 Address after: 230088 a2-06, 14 / F, block a, building J1, phase II, innovation industrial park, No. 2800, innovation Avenue, high tech Zone, China (Anhui) pilot Free Trade Zone, Hefei, Anhui Province Patentee after: Hefei Lianchuang Optical Co.,Ltd. Address before: 330096 No. 1699, Jingdong Avenue, Nanchang high tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: Lianchuang Electronic Technology Co.,Ltd. |
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