CN210924092U - Optical module and electronic equipment - Google Patents
Optical module and electronic equipment Download PDFInfo
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- CN210924092U CN210924092U CN201922075740.2U CN201922075740U CN210924092U CN 210924092 U CN210924092 U CN 210924092U CN 201922075740 U CN201922075740 U CN 201922075740U CN 210924092 U CN210924092 U CN 210924092U
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Abstract
The utility model provides an optical module, which comprises a photoelectric sensor and a condenser; one end of the condenser is a convex lens, and the other end of the condenser is a concave lens; the distance between the convex lens and the photoelectric sensor is smaller than the distance between the concave lens and the photoelectric sensor. The utility model provides a pair of optical module, this optical module include photoelectric sensor and spotlight ware, and the one end of spotlight ware is convex lens, and the other end is concave lens. The distance between the convex lens and the photosensor is smaller than the distance between the concave lens and the photosensor. Therefore, the concave lens and the convex lens can make up the gap between the photoelectric sensor and the existing light hole, the distance from the photoelectric sensor to the mainboard is effectively shortened, and the collection of light rays can be realized by utilizing the optical characteristics of the concave lens and the convex lens.
Description
Technical Field
The embodiment of the utility model provides an embodiment relates to the electronic equipment field, especially relates to an optical module and electronic equipment.
Background
At present, in order to adapt to the development trend of the full-screen of the electronic device product, as shown in fig. 1-1, the layout position of the optical module 10 used in the electronic device product is adjusted to be hidden below the display screen 11, or as shown in fig. 1-2, the layout position is arranged along the side seam between the display screen 11 and the middle frame 12.
For the two optical modules disposed at different positions, in order to ensure that the optical module receives sufficient external light, the light receiving surface of the optical module is usually close to the display screen 11, the distance from the optical module 10 to the main Board 13 is large, and the optical module 10 and the main Board 13 need to be electrically connected through a long FPC (Flexible Printed Circuit) or a thick PCB (Printed Circuit Board).
However, in practical applications, since a long electrical signal transmission path exists between the optical module and the motherboard, signal coupling interference is easily generated, which affects normal operation of the device. Especially, when the optical module is close to the antenna of the display screen and the side seam of the middle frame, the receiving capability of the antenna is easily reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an optical module and electronic equipment to there is longer signal of telecommunication transmission route between optical module and the mainboard among the solution prior art, produces the problem of the coupling interference of signal easily.
According to a first aspect of the present invention, there is provided an optical module comprising a photosensor and a condenser;
one end of the condenser is a convex lens, and the other end of the condenser is a concave lens;
the distance between the convex lens and the photoelectric sensor is smaller than the distance between the concave lens and the photoelectric sensor.
According to a second aspect of the present invention, there is provided an electronic device, comprising a main board, a display screen, and any one of the optical modules;
the photoelectric sensor is fixed on the mainboard, and one end of the concave lens of the condenser is aligned with the lighting hole of the display screen.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model provides a pair of optical module, this optical module include photoelectric sensor and spotlight ware, and the one end of spotlight ware is convex lens, and the other end is concave lens. The distance between the convex lens and the photosensor is smaller than the distance between the concave lens and the photosensor. Therefore, the concave lens and the convex lens can make up the gap between the photoelectric sensor and the existing light hole, the distance from the photoelectric sensor to the mainboard is effectively shortened, and the collection of light rays can be realized by utilizing the optical characteristics of the concave lens and the convex lens.
Drawings
FIG. 1-1 is a schematic view of an installation of a prior art optical module;
FIGS. 1-2 are schematic views of another installation of a prior art optical module;
fig. 2 is a schematic structural diagram of an optical module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another optical module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first electronic device in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second electronic device in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third electronic device in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fourth electronic device in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The embodiment of the utility model provides a pair of optical module is applied to an electronic equipment, and electronic equipment can be for smart mobile phone, computer, multimedia player, electronic reader, wearable equipment etc..
The present invention provides an optical module and an electronic device, which are described in detail below by referring to specific embodiments.
Referring to fig. 2, the present invention provides an optical module, which includes a photoelectric sensor 20 and a condenser 21;
one end of the condenser 21 is a convex lens 211, and the other end is a concave lens 212;
the distance between the convex lens 211 and the photosensor 20 is smaller than the distance between the concave lens 212 and the photosensor 20.
As shown in fig. 2, the present invention provides an optical module, which includes a photosensor 20 and a condenser 21. The photosensor 20 is an electronic device that converts an optical signal into an electrical signal using the photoelectric effect of a material. The condenser 21 is a light guide, and may be made of a material having a higher refractive index than air, such as glass or resin. One end of the condenser 21 is a convex lens 211, and the other end is a concave lens 212. The convex lens 211 is disposed close to the photosensor 20, and one end of the concave lens 212 is away from the photosensor 20. The distance between the convex lens 211 and the photosensor 20 is smaller than the distance between the concave lens 212 and the photosensor 20.
When external light irradiates the light receiving surface of the photoelectric sensor 20, the light first passes through the concave lens 212, and since the concave lens 212 has a diverging effect and a refraction light path has reversibility, the light with a wider viewing angle range can be received by the concave lens 212. The light passing through the concave lens 212 continues to impinge on the convex lens 211, and since the convex lens 211 has a converging function, the light can converge in the light receiving surface when the light exits from the convex lens 211 to impinge on the light receiving surface of the photosensor 20.
The utility model provides a pair of optical module, this optical module include photoelectric sensor and spotlight ware, and the one end of spotlight ware is convex lens, and the other end is concave lens. Be provided with the propagation that the spotlight ware can guide light on one side of photoelectric sensor's sensitive surface, avoid the loss among the light propagation process to can compensate photoelectric sensor and the clearance between the light trap that has, effectively shorten photoelectric sensor to the distance of mainboard, utilize concave lens and convex lens's optical characteristic alright realize the collection of light simultaneously.
Alternatively, referring to fig. 2, the main optical axis of the convex lens 211 coincides with the main optical axis of the concave lens 212.
Specifically, in order to adapt to the mounting structure of the photosensor and the light-transmitting hole, as shown in fig. 2, the condenser 21 may be a cylindrical tube structure, one end of the cylindrical tube is a convex lens 211, and the other end of the cylindrical tube is a concave lens 212, so that the main optical axis of the convex lens 211 coincides with the main optical axis of the concave lens 212, and the incident light can be irradiated on the convex lens 211 without being reflected after passing through the concave lens 212.
Alternatively, referring to fig. 3, the main optical axis of the convex lens 211 is parallel to the main optical axis of the concave lens 212.
Specifically, sometimes, due to the limitation of the actual layout space of the electronic device, the photo sensor and the light hole cannot be aligned coaxially, that is, the photo sensor and the light hole are offset, so as to be disposed in parallel with the main optical axis of the convex lens 211 and the main optical axis of the concave lens 212 as shown in fig. 3, so that the concave lens 212 for light incidence may be offset by a distance relative to the convex lens 211 for light emission. Such a concentrator 21 is better able to accommodate the configuration of the photosensor offset from the light-transmissive aperture.
Optionally, referring to fig. 3, a reflecting part is included between the convex lens 211 and the concave lens 212, and the reflecting part includes a first reflecting mirror 213 and a second reflecting mirror 214 which are arranged in parallel;
the reflecting surfaces of the first mirror 213 and the second mirror 214 are opposite to each other.
Specifically, as shown in fig. 3, when the principal optical axis of the convex lens 211 and the principal optical axis of the concave lens 212 are not on the same line and are parallel to each other, in order to ensure that the light emitted from the concave lens 212 can enter the convex lens 211, a reflecting part is disposed between the convex lens 211 and the concave lens 212, the reflecting part includes two mirrors, i.e., a first reflecting mirror 213 and a second reflecting mirror 214, and the first reflecting mirror 213 and the second reflecting mirror 214 may be a total reflecting mirror, a plane mirror, or a coated reflecting film. The first mirror 213 and the second mirror 214 are disposed in parallel, and the reflecting surfaces of the two mirrors are opposite to each other. It is understood that the first reflector 213, the second reflector 214, and the area enclosed by the convex lens 211 and the concave lens 212 may be vacuum or made of solid glass or resin, which is not limited by the present invention. After passing through the concave lens 212, the light impinges on the first reflecting mirror 213, the first reflecting mirror 213 reflects the light to the second reflecting mirror 214, and the second reflecting mirror 214 reflects the light to the convex lens 211 again. Therefore, the transmission path of the light can be changed through the reflection action of the two reflectors, so that the light of the condenser can be irradiated on the photoelectric sensor through reflection.
Optionally, the convex lens 211 is a plano-convex lens or a biconvex lens, and the concave lens 212 is a plano-concave lens or a biconcave lens.
Specifically, the convex lens 211 may be a plano-convex lens having one flat surface and the other convex surface, or may be a biconvex lens having both convex surfaces. The concave lens 212 may be a plano-concave lens with one flat surface and the other concave surface, or may be a biconcave lens with both concave surfaces. It is understood that the plano-convex lens is thinner than the average thickness of the biconvex lens, and the biconcave lens is thinner than the average thickness of the plano-concave lens, and may be applied to an electronic device having a more compact layout space.
Optionally, the convex surface of the plano-convex lens faces the light receiving surface of the photosensor 20;
one surface of the plano-concave lens recess faces away from the light receiving surface of the photosensor 20.
Specifically, when the convex lens 211 is a plano-convex lens, the convex surface of the plano-convex lens faces the light receiving surface of the photosensor 20, and the light needs to pass through the convex curved surface when being emitted, so that the effect of converging the emitted light is more remarkable. When the concave lens 212 is a plano-concave lens, the concave surface of the plano-concave lens faces away from the light receiving surface of the photosensor 20, and the incident light needs to pass through the concave curved surface first, so that the concave curved surface can receive a wider range of incident light based on the reversibility of the refraction light path.
Optionally, the photoelectric sensor 20 is a photosensitive sensor, an infrared distance sensor, or a fingerprint scanning sensor.
Specifically, the photoelectric sensor 20 may be a photosensitive sensor such as a photoelectric tube or a photovoltaic power generation module, or may be an infrared distance sensor, and it is understood that the condenser 21 may be disposed at both the transmitting end and the receiving end of the infrared distance sensor, so as to respectively increase the irradiation range and the receiving range of the infrared light. The photoelectric sensor 20 can also be a fingerprint scanning sensor, and the working reliability of the fingerprint module under the screen can be improved by matching with the condenser 21.
The utility model also provides an electronic device, referring to fig. 4 to 7, the electronic device comprises a main board 22, a display screen 23 and any one of the optical modules;
the photoelectric sensor 20 is fixed on the main board 22, and one end of the concave lens 212 of the condenser 21 is aligned with the lighting hole of the display screen 22.
Particularly, as shown in fig. 4 to 7, the present invention also discloses an electronic device, which may include a main board 22, a display screen 23 and any one of the optical modules. The photo sensor 20 in the optical module is fixed on the motherboard 22 in a soldering manner, and is electrically connected with the circuit of the motherboard 22. A transparent lighting hole is arranged below or on the side of the display screen 23, and the lighting hole can be a through hole or a blind hole. The concave lens 212 of the condenser 21 is aligned with the lighting hole of the display 22 at one end, so that the light irradiated on the display 22 can be transmitted through the lighting hole and the condenser is irradiated on the photoelectric sensor 20 in turn. Therefore, after the optical module is used in the electronic equipment, the working stability of the electronic equipment can be improved, and the user experience of the electronic equipment is improved.
Optionally, referring to fig. 4 or 5, the electronic device further comprises a first shield 24;
the photoelectric sensor 20 is fixed on a first surface of the main board 22, where the first surface is a surface of the main board 22 close to the display screen 23;
the first shield 24 is disposed along a circumferential direction of the photosensor 20.
Specifically, as shown in fig. 4 or 5, the electronic device further includes a first shielding member 24, and the photosensor 20 may be soldered and fixed on a first surface of the main board 22, where the first surface is a surface of the main board 22 close to the display screen 23, and since the first surface is close to the display screen 23, the condenser 21 is located between the display screen 23 and the photosensor 20 to guide light, and therefore, the first shielding member 24 is disposed along a circumferential direction of the photosensor 20, and prevents electromagnetic leakage in the circumferential direction of the photosensor 20. It will be appreciated that the first shield 24 may be shared with other components, thereby saving layout space.
Optionally, referring to fig. 6 or 7, the electronic device further comprises a second shield 25;
the photoelectric sensor 20 is fixed on a second surface of the main board 22, where the second surface is a surface of the main board 22 away from the display screen 23;
a light-transmitting hole 221 is formed in the main board 22, and the convex lens 211 is fixed in the light-transmitting hole 221;
the second shield 25 covers the circumferential direction and the backlight surface that shields the photosensor 20.
Specifically, as shown in fig. 6 or fig. 7, when the layout space on the side of the main board 22 close to the display screen 23 is limited, the photosensor 20 may also be soldered and fixed to a second surface of the main board 22 away from the display screen 23. In order to ensure the propagation of light, a light-transmitting hole 221 is formed in the main plate 22, and the convex lens 211 is fixed in the light-transmitting hole 221. At this time, the circumference and the backlight surface of the photoelectric sensor 20 are not blocked, and thus the circumference and the backlight surface of the photoelectric sensor 20 can be covered and shielded by the second shielding member 25, thereby further improving the shielding effect and preventing electromagnetic leakage and external electromagnetic interference.
The utility model provides a pair of optical module and electronic equipment, this optical module include photoelectric sensor and spotlight ware, and the one end of spotlight ware is convex lens, and the other end is concave lens. The distance between the convex lens and the photosensor is smaller than the distance between the concave lens and the photosensor. Therefore, the concave lens and the convex lens can make up the gap between the photoelectric sensor and the existing light hole, the distance from the photoelectric sensor to the mainboard is effectively shortened, and the collection of light rays can be realized by utilizing the optical characteristics of the concave lens and the convex lens. Through using above-mentioned optical module in electronic equipment, can promote electronic equipment's job stabilization nature, promote electronic equipment's user experience. And, the shielding scheme to different mounting structure designs still can further promote the electromagnetic shield effect of optical module, helps promoting optical module and electronic equipment's job stabilization nature.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An optical module, characterized in that the optical module comprises a photoelectric sensor and a condenser;
one end of the condenser is a convex lens, and the other end of the condenser is a concave lens;
the distance between the convex lens and the photoelectric sensor is smaller than the distance between the concave lens and the photoelectric sensor.
2. The optical module of claim 1,
the main optical axis of the convex lens coincides with the main optical axis of the concave lens.
3. The optical module of claim 1,
the main optical axis of the convex lens is parallel to the main optical axis of the concave lens.
4. The optical module of claim 3, wherein the convex lens and the concave lens include a reflective portion therebetween, the reflective portion including a first mirror and a second mirror disposed in parallel with respect to each other;
the reflecting surfaces of the first mirror and the second mirror are opposite to each other.
5. The optical module of claim 1,
the convex lens is a plano-convex lens or a biconvex lens, and the concave lens is a plano-concave lens or a biconcave lens.
6. The optical module of claim 5,
the convex surface of the plano-convex lens faces the light receiving surface of the photoelectric sensor;
one surface of the concave part of the plano-concave lens faces back to the light receiving surface of the photoelectric sensor.
7. The optical module of claim 1,
the photoelectric sensor is a photosensitive sensor, an infrared distance sensor or a fingerprint scanning sensor.
8. An electronic device, comprising a motherboard, a display screen, and the optical module of any one of claims 1 to 7;
the photoelectric sensor is fixed on the mainboard, and one end of the concave lens of the condenser is aligned with the lighting hole of the display screen.
9. The electronic device of claim 8, further comprising a first shield;
the photoelectric sensor is fixed on a first surface of the mainboard, and the first surface is one surface of the mainboard close to the display screen;
the first shield is disposed along a circumferential direction of the photosensor.
10. The electronic device of claim 8, further comprising a second shield;
the photoelectric sensor is fixed on a second surface of the mainboard, and the second surface is the surface of the mainboard far away from the display screen;
the main board is provided with a light hole, and the convex lens is fixed in the light hole;
the second shielding piece covers and shields the circumferential direction and the backlight surface of the photoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922075740.2U CN210924092U (en) | 2019-11-26 | 2019-11-26 | Optical module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922075740.2U CN210924092U (en) | 2019-11-26 | 2019-11-26 | Optical module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210924092U true CN210924092U (en) | 2020-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922075740.2U Active CN210924092U (en) | 2019-11-26 | 2019-11-26 | Optical module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210924092U (en) |
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2019
- 2019-11-26 CN CN201922075740.2U patent/CN210924092U/en active Active
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