CN218383432U - Lens device capable of realizing electromagnetic shielding and electromagnetic isolation - Google Patents
Lens device capable of realizing electromagnetic shielding and electromagnetic isolation Download PDFInfo
- Publication number
- CN218383432U CN218383432U CN202122995651.7U CN202122995651U CN218383432U CN 218383432 U CN218383432 U CN 218383432U CN 202122995651 U CN202122995651 U CN 202122995651U CN 218383432 U CN218383432 U CN 218383432U
- Authority
- CN
- China
- Prior art keywords
- lens
- electromagnetic
- assembly
- shielding
- isolation
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model discloses a can realize camera lens device of electromagnetic shield and electromagnetism isolation relates to electromagnetic shield technical field. The device of the invention comprises three parts: a lens assembly 1 at the front end of the lens; the lens component 2 adopts a material with electromagnetic shielding and electromagnetic isolation functions as a lens cone; a lens assembly 3 for a lens projecting portion. The inside of the parts of assemblies 1,2 and 3 in the figure is the optical imaging lens, the material of which is optical glass or optical plastic. The invention can effectively carry out electromagnetic shielding and electromagnetic isolation on the space at the two ends of the lens device, and solves the problem that the existing lens has no electromagnetic shielding and electromagnetic isolation functions.
Description
Technical Field
The utility model belongs to electromagnetic shield and electromagnetism isolating device especially are used for imaging lens or lighting lens, projection lens, monitoring lens etc. to need carry out the occasion that electromagnetic shield or electromagnetism were kept apart in the space at camera lens both ends.
Background
With the rapid development of electromagnetic technology, electromagnetic application is increasingly wide, the use frequency band of electromagnetic waves is continuously widened, and in military, political offices, companies or other conference rooms or other occasions needing confidentiality, the display equipment needs to be integrally shielded, and the electromagnetic interference protection and electromagnetic shielding capability of the display equipment are also high. To ensure the shielding effectiveness, the shielding effectiveness of the display device in the security place cannot be lower than that of the security place. Traditional display device, liquid crystal display device can't realize electromagnetic shield, and projection equipment though can carry out electromagnetic shield and electromagnetic isolation processing at the fuselage, nevertheless because current camera lens does not have electromagnetic shield and electromagnetic isolation function, electromagnetic interference can propagate through the camera lens, often also can not reach the efficiency index of electromagnetic shield and electromagnetic isolation, must carry out whole electromagnetic shield to whole secret place, makes the cost very high like this.
Disclosure of Invention
The existing lens for projection and monitoring mainly comprises a lens, a spacing ring and a lens cone, wherein the lens usually comprises a series of optical glass or optical plastic lenses, the lens cone usually adopts aluminum alloy or other metal and plastic materials for turning or injection molding, the spacing ring between the lenses usually comprises aluminum alloy or plastic parts, electromagnetic waves and electromagnetic radiation can be transmitted through the lens, so that the whole lens cannot shield and isolate the electromagnetic radiation, and the whole projection display equipment cannot reach the efficiency index of electromagnetic shielding and electromagnetic isolation. Not enough to prior art, the utility model provides a can realize electromagnetic shield and electromagnetic isolation's camera lens device to solve the problem that electromagnetic radiation and electromagnetic interference that cause because the camera lens reason can not effectively be shielded and keep apart.
The utility model discloses a can realize electromagnetic shield and electromagnetic isolation's camera lens device structure is shown as figure 1. The utility model discloses a camera lens device includes the three: a lens assembly 1 at the front end of the lens; the structure and optical parts of the lens are the same as those of a conventional lens, and the lens has no shielding and isolating effects on electromagnetic radiation; the lens component 2, its lens-barrel 2 adopts the waveguide tube with electromagnetic shielding and electromagnetic isolation function, the external diameter and length size of the waveguide tube have the restriction requirement on the fact, the glass or optical plastics in the waveguide tube do not have the conducting action to the electromagnetic wave, the space ring between the lenses adopts the non-metallic material which does not have the conducting action to the electromagnetic wave, therefore the electromagnetic wave can not continue to propagate forward after propagating to the lens component 2 through the lens component 1, realize the shielding and isolation function of the electromagnetic radiation; the lens assembly 3 of the lens projecting portion, its structure and optical parts are the same as those of a conventional lens, and has no shielding and isolating effects on electromagnetic radiation. In the figures, parts 1,2 and 3 are internally provided with optical imaging lenses, and the materials of the lenses can be optical glass and optical plastic. The lens component 2 is characterized by comprising a lens component 2 which adopts materials with electromagnetic shielding and electromagnetic isolation functions as a lens cone, and at least more than one optical glass lens or optical plastic lens is arranged in the lens component. The parts 1 and 3 in the figure can be as required or not. Due to the shielding effect of the waveguide, the lens and the spacer in the lens assembly 2, the electromagnetic waves and the electromagnetic radiation cannot propagate to the lens assembly 3 through the lens assembly 1, and the electromagnetic radiation of the lens assembly 1 and the lens assembly 3 is effectively shielded and isolated.
The technical scheme is as follows:
1. the lens assembly 1, 3 in fig. 1 may comprise three parts, wherein the lens assembly 1, 3 may be a conventional lens assembly, the structure and optical parts of which are the same as those of a conventional lens, and which has no shielding and isolating effect on electromagnetic radiation.
2. In the lens assembly 2 shown in fig. 1, the lens barrel 2 of the lens assembly 2 adopts a waveguide tube with electromagnetic shielding and electromagnetic isolation functions, the outer diameter and the length dimension of the waveguide tube have certain limiting requirements, the glass or optical plastic lens in the waveguide tube has no conduction effect on electromagnetic waves, and the space ring between the lenses is made of a non-metal material which has no conduction effect on the electromagnetic waves, so that the electromagnetic waves cannot be continuously transmitted forward after being transmitted to the lens assembly 2 through the lens assembly 1, and the shielding and isolation functions of electromagnetic radiation are realized.
The structure of the lens assembly 2 is:
(1) The lens in the lens component 2 is made of optical glass or optical plastic;
(2) The lens cone 2 in the lens assembly 2 adopts materials with electromagnetic shielding and electromagnetic isolation functions, the utility model discloses in use the shielding waveguide tube, the external diameter and the length size of this waveguide tube all have certain restriction requirements, can shield and keep apart electromagnetic radiation, prevent the electromagnetic wave from leaking, the specification of waveguide tube is confirmed, general length is less than 28mm, the diameter is less than 10mm;
(3) Set up the space ring between the lens in lens cone 2, guarantee the assembly position between the lens, the space ring between the lens adopts the non-metallic material that does not have the conduction effect to the electromagnetic wave.
Drawings
Figure 1 the structure of the present invention is schematically illustrated
Fig. 2 is a schematic view of the lens assembly 2 (first embodiment)
Fig. 3 is a schematic diagram of a second structure of the embodiment of the present invention
Fig. 4 is a schematic view of a three-structure of the embodiment of the present invention
Fig. 5 is a schematic diagram of the embodiment of the present invention
Wherein, 1-lens assembly 1, 2-lens assembly 2, 3-lens assembly 3, 11- lens 1, 12 of lens assembly 1-lens spacer 1, 13-lens n of lens assembly 1, 14-lens spacer n of lens assembly 1, 15-lens cone 1, 21- lens 1, 22 of lens assembly 2-lens spacer 1, 23-lens n of lens assembly 2, 24-lens spacer n of lens assembly 2, 25-lens cone 2, 31- lens 1, 32 of lens assembly 3- lens spacer 1, 33 of lens assembly 3-lens n of lens assembly 3, 34-lens spacer n of lens assembly 3, 35-lens cone 3.
Detailed Description
The technical solutions in the embodiments of the apparatus of the present invention will be clearly and completely described below with reference to the embodiments of the apparatus of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the apparatus of the present invention, and not all of the embodiments. On the basis of the embodiments of the device of the present invention, any equivalent embodiment of equivalent replacement or modification made by those skilled in the art without departing from the technical scope of the device of the present invention belongs to the protection scope of the device claim of the present invention.
Example one
Referring to fig. 2, a lens apparatus capable of achieving electromagnetic shielding and electromagnetic isolation. The lens cone 2 of the lens device adopts electromagnetic shielding and electromagnetic isolation materials, such as a waveguide tube, an optical imaging lens is assembled in the lens cone, the optical lens is made of optical glass or optical plastic, and a plastic space ring is used between the optical imaging lenses to ensure the assembly position between the lenses. The lens barrel 2 made of materials with electromagnetic shielding and electromagnetic isolation functions and the lens with the non-electromagnetic conducting material as the space ring are adopted, electromagnetic waves cannot be continuously transmitted forwards after being transmitted to the lens assembly 2, and the electromagnetic radiation shielding and isolating functions are achieved. For a projection system or a monitoring system using the lens with electromagnetic shielding, the lens component 2 can effectively isolate the electromagnetic radiation at two ends of the lens component, so that the electromagnetic radiation cannot be transmitted from the front end to the rear end, the electromagnetic shielding and isolating effects are achieved, and the purpose of confidentiality is achieved.
The structure of the lens assembly 2 is:
(1) The lens of the lens component 2 is made of optical glass or optical plastic;
(2) The lens cone 2 of the lens assembly 2, adopt the material with electromagnetic shielding and electromagnetic isolation function, the utility model discloses in with the shielding waveguide tube, the external diameter and the length size of this waveguide tube all have certain restriction requirements, can shield and keep apart electromagnetic radiation, prevent the electromagnetic wave foreign exchange, the specification of waveguide tube is confirmed, general length is less than 28mm, the diameter is less than 10mm;
(3) Set up the space ring between the lens in lens cone 2, guarantee the assembly position between the lens, the space ring between the lens adopts the non-metallic material that does not have the conduction effect to the electromagnetic wave.
Example two
Referring to fig. 3, a lens apparatus capable of achieving electromagnetic shielding and electromagnetic isolation. In an actual projection and monitoring system, the lens barrel 2 adopts a waveguide tube with electromagnetic shielding and isolation functions, because of the limitation of the length and the outer diameter, light beam signals at the incident end of the lens cannot meet the incident requirement of the lens assembly 2 or the structure of the signal incident end is not easy to realize the direct connection with the waveguide tube 2 of the lens assembly 2, the lens assembly 1 can be arranged at the front end of the lens, and the inside of the lens assembly 1 can be provided with a lens or without the lens. The lens barrel 1 of the lens assembly 1 is made of plastic or metal, optical lenses can be arranged in the lens barrel, the lens material can be optical glass or optical plastic, the structure and optical parts of the lens assembly are the same as those of a conventional lens, and the lens assembly has no shielding and isolating effects on electromagnetic radiation.
When the electromagnetic radiation is transmitted through the lens component 1 and reaches the lens component 2, the electromagnetic radiation is shielded and isolated by the lens component 2 with the electromagnetic shielding function, and the electromagnetic radiation cannot be transmitted to a screen, so that the whole lens has the electromagnetic shielding and isolating functions, and the system device using the lens can shield and isolate the electromagnetic radiation at two ends of the lens component 2, thereby meeting the requirement of confidentiality.
EXAMPLE III
Referring to fig. 4, a lens apparatus capable of achieving electromagnetic shielding and electromagnetic isolation. In an actual projection and monitoring system, although the lens assembly 2 can achieve the electromagnetic shielding and isolating functions, when the display or projection functions of the lens cannot be satisfied, the lens assembly 3 may be further disposed at the rear end of the lens assembly 2, and the lens assembly 3 may have a lens or may not have a lens. The lens barrel 3 of the lens assembly 3 is made of plastic or metal, optical lenses can be arranged in the lens barrel, the lens material can be optical glass or optical plastic, the structure and optical parts of the lens assembly are the same as those of a conventional lens, and the lens assembly has no shielding and isolating effects on electromagnetic radiation.
When electromagnetic radiation propagated lens subassembly 2, shielded and kept apart by lens subassembly 2 that has electromagnetic shield function, electromagnetic radiation can not propagate lens subassembly 3, made whole camera lens play electromagnetic shield and the effect of keeping apart, so the utility model discloses a lens device can shield and keep apart the electromagnetic radiation at 2 both ends of lens subassembly, satisfies secret requirement. The lens barrel 3 is made of plastic or metal, an optical lens can be arranged inside the lens barrel, and the lens material can be optical glass or optical plastic. The display image is further enlarged through the lens assembly 3. The lens device can meet the requirement of confidentiality and can achieve a good display effect.
Example four
Referring to fig. 5, a lens apparatus capable of achieving electromagnetic shielding and electromagnetic isolation. In an actual projection and monitoring system, the lens barrel 2 of the waveguide tube with electromagnetic shielding and isolation functions is limited in length and outer diameter, light beam signals at the incident end of the lens cannot meet the incident requirement of the lens assembly 2 or the structure of the signal incident end is not easy to be directly connected with the waveguide tube barrel 2 of the lens assembly 2, the lens assembly 1 can be arranged at the front end of the lens, and the inside of the lens assembly 1 can be provided with a lens or without a lens. The lens barrel 1 of the lens assembly 1 is made of plastic or metal, optical lenses can be arranged in the lens barrel, the lens material can be optical glass or optical plastic, the structure and optical parts of the lens assembly are the same as those of a conventional lens, and the lens assembly has no shielding and isolating effects on electromagnetic radiation.
Use lens subassembly 1 and lens subassembly 2, can realize electromagnetic shield and isolation function, but when unable demonstration or the projection function who satisfies the camera lens, can set up lens subassembly 3 at lens subassembly 2 rear end, lens subassembly 3 inside can be have the lens, also can be without the lens. The lens barrel 3 of the lens assembly 3 is made of plastic or metal, optical lenses can be arranged in the lens barrel, the lens material can be optical glass or optical plastic, the structure and optical parts of the lens assembly are the same as those of a conventional lens, and the lens assembly has no shielding and isolating effects on electromagnetic radiation.
When electromagnetic radiation propagated through lens subassembly 1, when reacing lens subassembly 2, shielded and kept apart by lens subassembly 2 that has electromagnetic shield function, electromagnetic radiation can not propagate to lens subassembly 3, made whole camera lens play the effect of electromagnetic shield and isolation, thereby used the utility model discloses a system's device of camera lens can shield and keep apart the electromagnetic radiation at 2 both ends of lens subassembly, satisfies secret requirement.
In summary, at the incident end of the lens, because the light beam does not directly enter the lens assembly 2 adopting the electromagnetic shielding and electromagnetic isolation material as the lens barrel 2 or the light beam cannot be directly connected with the lens assembly 2 due to the structure, the light beam entering the lens assembly 2 and the structure connection are ensured through the design of the lens assembly 1 at the front end of the lens, the display requirement cannot be met after the light beam passes through the lens assembly 2, the lens assembly 3 is arranged at the rear end of the lens assembly 2, and the displayed image is amplified through the lens combination inside the lens assembly 3.
The experimental effect of four embodiments shows, the utility model provides a can realize the camera lens device of electromagnetic shield and electromagnetism isolation owing to increased the camera lens subassembly 2 that adopts electromagnetic shield and electromagnetism isolating material to be lens cone 2 in the camera lens, so just carried out electromagnetic shield and electromagnetism isolation to the signal through this camera lens device. Compared with the existing lens, the electromagnetic shielding and electromagnetic isolation of the projection product and the monitoring product on the lens part is effectively processed, and the problem that the existing lens cannot meet the requirements of electromagnetic shielding and electromagnetic isolation is solved. Furthermore, the utility model discloses an electromagnetic shield and electromagnetism isolation material are lens subassembly 2 of lens cone 2, according to the needs of actual product at front end design lens subassembly 1 and rear end design lens subassembly 3, and lens subassembly 1 and lens subassembly 3 material can be conventional lens material, and the design is simple nimble with production, has effectively practiced thrift electromagnetic shield and electromagnetism isolation cost.
Claims (6)
1. The utility model provides a can realize electromagnetic shield and electromagnetism isolated camera lens device, its characterized in that, includes lens subassembly 2 (2), and its lens cone 2 (25) adopt the material that has electromagnetic shield and electromagnetism isolation function, contains a slice optical glass lens or plastic lens (21) in lens cone 2 (25) at least, and when having the multi-disc lens in lens cone 2 (25), set up plastic spacer ring (22) between the lens in lens cone 2 (25), guarantees the assembly position between the lens.
2. The lens device capable of achieving electromagnetic shielding and electromagnetic isolation according to claim 1, comprising a lens assembly 1 (1), wherein the material of the lens barrel 1 (15) is plastic or metal, and the optical lens is assembled inside or not.
3. The lens device capable of achieving electromagnetic shielding and electromagnetic isolation according to claim 1 or 2, comprising a lens assembly 3 (3), wherein the lens barrel 3 (35) is made of plastic or metal, and an optical lens can be assembled inside the lens assembly.
4. The lens device capable of achieving electromagnetic shielding and electromagnetic isolation according to claim 1, wherein the material of the lens barrel 2 (25) is a waveguide.
5. The lens device capable of achieving electromagnetic shielding and electromagnetic isolation according to claim 4, wherein the lens barrel 2 (25) has a diameter of a waveguide of less than 10 mm.
6. The lens device capable of achieving electromagnetic shielding and electromagnetic isolation according to claim 5, wherein the length of the lens barrel 2 (25) is less than 28mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020228744013 | 2020-12-04 | ||
| CN202022874401 | 2020-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218383432U true CN218383432U (en) | 2023-01-24 |
Family
ID=84950695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122995651.7U Active CN218383432U (en) | 2020-12-04 | 2021-12-02 | Lens device capable of realizing electromagnetic shielding and electromagnetic isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218383432U (en) |
-
2021
- 2021-12-02 CN CN202122995651.7U patent/CN218383432U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3116365A (en) | Alignment device | |
| TWI721543B (en) | Optical lens, lens module and electronic device using the same | |
| CN209387963U (en) | Lens module | |
| CN112135013B (en) | Electronic device | |
| WO2021004148A1 (en) | Lens, camera, and electronic device | |
| US11131905B2 (en) | Camera module and electronic device | |
| CN104320635A (en) | GIS switch position remote online monitoring system based on video | |
| TW202043896A (en) | Camera module and electronic device | |
| US11556024B2 (en) | Display assembly of electronic device, electronic device, and method for manufacturing display assembly | |
| CN109862160A (en) | Smart phone | |
| CN218383432U (en) | Lens device capable of realizing electromagnetic shielding and electromagnetic isolation | |
| CN101672447B (en) | Backlight module and display device | |
| CN107680482B (en) | Display module and electronic device | |
| EP3993386A1 (en) | Camera lens, camera module, and electronic device | |
| CN112346195A (en) | Lens device capable of realizing electromagnetic shielding and electromagnetic isolation | |
| CN100432722C (en) | Video imaging device with low radiation | |
| US11187868B2 (en) | Lens assembly and electronic device having same | |
| CN204666938U (en) | 1400 ten thousand surpass fish eye lens clearly | |
| CN203490390U (en) | Optical recording device without ghost images | |
| CN204719317U (en) | Day and night high definition fish eye lens | |
| CN209821473U (en) | Lens, camera module and electronic device | |
| CN110703539A (en) | Optical assembly | |
| CN215116947U (en) | Security monitoring camera | |
| CN215575873U (en) | Lens barrel | |
| CN111355866A (en) | Imaging assembly, manufacturing method thereof, camera module and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |