CN112394600A

CN112394600A - Optical module and electronic device

Info

Publication number: CN112394600A
Application number: CN202011393386.9A
Authority: CN
Inventors: 陈振华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-02-23
Anticipated expiration: 2040-12-02
Also published as: CN112394600B

Abstract

The application discloses optical assembly and electronic equipment, wherein, optical assembly includes: the cover plate is provided with a light inlet part, a light outlet part, a first reflecting piece and a second reflecting piece; the first reflecting piece and the light inlet part are arranged oppositely, the second reflecting piece and the light outlet part are arranged oppositely, and when light rays are emitted into the cover plate through the light inlet part, the light rays are transmitted in the cover plate after being reflected by the first reflecting piece and are emitted from the light outlet part after being reflected by the second reflecting piece. This application has avoided setting up the through-hole on the apron through the cooperation of first reflection piece and second reflection piece, has guaranteed the overall structure intensity of apron on the one hand, has guaranteed the integrality on apron surface.

Description

Optical module and electronic device

Technical Field

The present application relates to the field of optical technologies, and in particular, to an optical module and an electronic device.

Background

At present, when the optical assembly is matched with elements such as a camera and the like for use, through holes are required to be formed in a cover plate so as to meet the requirement of light transmission. Specifically, as shown in fig. 1, a through hole 204 'is formed in the cover plate 202', and a camera 206 'is disposed below the cover plate 202' at the position of the through hole 204 'to ensure that light enters the camera 206'. In addition, a glass baffle 208 'is disposed at the through hole 204' for protecting the camera 206 'from the external environment and allowing external light to enter the camera 206'. The through hole 204 'is provided with a decorative ring 210', and the decorative ring 210 'is used for bearing the glass baffle plate 208' and plays a certain decorative role.

However, the related art has at least the following problems: more importantly, the opening of the through hole 204 ' in the cover plate 202 ' can cause the camera 206 ' to leak, which affects the integrity and the aesthetic appearance of the product, especially the trend of the electronic device toward multiple cameras at present, which makes the electronic device generate an appearance effect similar to a "bathroom warmer" and seriously affects the aesthetic degree of the electronic device.

Disclosure of Invention

The application aims to provide an optical assembly and an electronic device, and at least solves the technical problem that the cover plate needs a through hole to influence appearance integrity and reliability.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an optical assembly, including: the cover plate is provided with a light inlet part, a light outlet part, a first reflecting piece and a second reflecting piece; the first reflecting piece and the light inlet part are arranged oppositely, the second reflecting piece and the light outlet part are arranged oppositely, and when light rays are emitted into the cover plate through the light inlet part, the light rays are transmitted in the cover plate after being reflected by the first reflecting piece and are emitted from the light outlet part after being reflected by the second reflecting piece.

In a second aspect, an embodiment of the present application provides an electronic device, including: a camera; and an optical assembly as in the embodiment of the first aspect; the camera is arranged opposite to the light-emitting part, and light enters the camera under the condition that the light is emitted out of the cover plate from the light-emitting part.

In the embodiment of the application, the light can be emitted into the cover plate through the light inlet part and is emitted to the position of the first reflecting piece; the light rays are reflected and change the transmission direction after striking the first reflecting piece, and are transmitted towards the position of the second reflecting piece; the light rays can be reflected again after striking the second reflecting piece, change the transmission direction and spread towards the position of the light emergent part; the light can directly emit out of the cover plate after being emitted to the light emitting part. Through the change of the first reflecting piece and the second reflecting piece to the light propagation path, the light inlet part and the light outlet part can be arranged at different positions of the cover plate, light can be transmitted inside the cover plate, and a through hole does not need to be formed in the cover plate. By the design, the cover plate is prevented from being provided with the through hole, the integrity of the whole cover plate is ensured, the defect that the strength of the whole structure of the cover plate is reduced due to the arrangement of the through hole is avoided, and the integrity of the surface of the cover plate is ensured.

More importantly, when this optical assembly is applied to electronic equipment such as cell-phone, can guarantee that optical assembly's apron covers camera isotructure completely, realizes that camera isotructure is hidden completely in the apron below, and camera isotructure can not be seen completely to the outward appearance face, has avoided the condition emergence that camera isotructure leaks outward to greatly having promoted electronic equipment's aesthetic property, also having played certain guard action to the camera.

Additional aspects and advantages of the present application 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 present application.

Drawings

The above and/or additional aspects and advantages of the present application 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 view of an optical assembly in the related art.

Reference numerals in fig. 1:

202 ' cover plate, 204 ' through hole, 206 ' camera, 208 ' glass baffle plate and 210 ' decorative ring.

FIG. 2 is a schematic view of an optical assembly according to one embodiment of the present application;

FIG. 3 is a schematic diagram of a light guiding layer and a light transmitting layer in an optical assembly according to one embodiment of the present application;

FIG. 4 is a schematic diagram of a portion of the optical assembly of FIG. 2;

FIG. 5 is a schematic diagram of a portion of an electronic device according to one embodiment of the present application;

FIG. 6 is a schematic diagram of a portion of an electronic device according to another embodiment of the present application;

FIG. 7 is a schematic diagram of the use of the electronic device of FIG. 5;

fig. 8 is a schematic diagram of the use of the electronic device of fig. 6.

Reference numerals in fig. 2 to 8:

102 cover plate, 106 light inlet part, 108 light outlet part, 108a light inlet side light outlet part, 108b middle light outlet part, 108c light outlet side light outlet part, 110 light transmitting layer, 112 light guiding layer, 114 light shielding layer, 116 first reflecting piece, 118 second reflecting piece, 118a light inlet side second reflecting piece, 118b middle second reflecting piece, 118c light outlet side second reflecting piece, 120 camera, 120a light inlet side camera, 120b middle camera and 120c light outlet side camera.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description and claims of this application, the term "plurality" means two or more unless otherwise specified. Further, "and/or" in the specification and claims means at least one of the connected objects.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An optical module and an electronic apparatus according to an embodiment of the present application are described below with reference to fig. 2 to 8, in which arrows indicate light traveling directions.

As shown in fig. 2, 5 and 6, an optical assembly according to some embodiments of the present application includes: a cover plate 102, wherein the cover plate 102 is provided with a light inlet part 106, a light outlet part 108, a first reflecting member 116 and a second reflecting member 118; the first reflective member 116 is disposed opposite to the light inlet portion 106, and the second reflective member 118 is disposed opposite to the light outlet portion 108, so that when the light enters the cover plate 102 through the light inlet portion 106, the light is reflected by the first reflective member 116, transmitted in the cover plate 102, and reflected by the second reflective member 118, and then emitted from the light outlet portion 108.

According to the optical assembly of the embodiment of the present application, the cover plate 102 is provided with the light inlet portion 106, the light outlet portion 108, the first reflective member 116, and the second reflective member 118, which are used in cooperation. Wherein, the light can be emitted into the cover plate 102 through the light inlet portion 106, and emitted to the position of the first reflection member 116; the light rays reflected and changed the transmission direction after striking the first reflecting member 116, and spread toward the position of the second reflecting member 118; after the light rays strike the second reflecting member 118, the light rays are reflected again and change the transmission direction, and are transmitted towards the position where the light emergent portion 108 is located; the light directly exits the cover plate 102 after striking the light emergent portion 108. Through the change of the first reflective member 116 and the second reflective member 118 to the light propagation path, the light inlet portion 106 and the light outlet portion 108 can be disposed at different positions of the cover plate 102, and the light can be transmitted inside the cover plate 102, so that a through hole does not need to be formed in the cover plate 102.

That is, based on the cooperation of the light inlet part 106, the light outlet part 108, the first reflecting member 116 and the second reflecting member 118, the light is transmitted inside the cover plate 102, and the light path of the light is adjusted, so that the incident position and the emitting position of the light on the cover plate 102 are not overlapped. Due to the design, the cover plate 102 is prevented from being provided with the through holes, the integrity of the whole cover plate 102 is ensured, and the defect that the strength of the whole structure of the cover plate 102 is reduced due to the arrangement of the through holes is overcome. More importantly, when the cover plate 102 is applied to electronic equipment such as a mobile phone, the cover plate 102 can be ensured to completely cover the camera 120, the camera 120 is completely hidden under the cover plate 102, the camera 120 can not be seen from the appearance surface, the situation that the camera 120 leaks outside is avoided, and therefore the attractiveness of the electronic equipment is improved to a great extent.

As a possible implementation manner, as shown in fig. 5 and 6, the light inlet portion 106 and the light outlet portion 108 are respectively located at two opposite sides of the cover plate 102. That is, the light inlet portion 106 and the light outlet portion 108 are disposed on opposite sides of the cover plate 102, so that light is incident from one side of the cover plate 102 and emitted from the other side.

Specifically, as shown in fig. 5 and 6, the light inlet portion 106 and the light outlet portion 108 are respectively disposed on two opposite sides of the cover plate 102, such that the light inlet portion 106 is used in cooperation with the first reflective member 116, and the light outlet portion 108 is used in cooperation with the second reflective member 118, so as to realize light inlet on one side and light outlet on the other side of the cover plate 102. So set up, guaranteed the effect of sheltering from of apron 102 on the one hand, on the other hand has guaranteed the printing opacity effect of apron 102. That is, on the basis of ensuring that the cover plate 102 can cover and cover the structure below the cover plate, the light rays penetrate through the cover plate 102.

As one possible embodiment, as shown in fig. 5 and 6, the light entrance part 106 is located at a side of the light exit part 108. That is, the light incident portion 106 and the light emitting portion 108 are disposed at different positions of the cover plate 102, so that light is incident and emitted from different positions.

In particular, the light inlet portion 106 and the light outlet portion 108 are both light-transmitting members, and if the light inlet portion 106 and the light outlet portion 108 are disposed at corresponding positions of the cover plate 102, the cover plate 102 is made to be completely light-transmitting at the corresponding positions, so that a user can directly observe the structure below the cover plate 102 through the light inlet portion 106 and the light outlet portion 108. In this embodiment, the light incident portion 106 and the light emergent portion 108 are disposed at different positions of the cover plate 102, so as to ensure a structure that the cover plate 102 can be completely covered and covered, and ensure the integrity of the appearance of the cover plate 102, so that a user cannot directly see the structure below the cover plate 102 from the top of the cover plate 102.

Specifically, since the light inlet portion 106 and the light outlet portion 108 are disposed at different positions of the cover plate 102, the light can travel only in a straight line. For this reason, in the present embodiment, through the arrangement of the first reflective member 116 and the second reflective member 118, the optical path is adjusted, so that after the light enters the cover plate 102 through the light inlet portion 106, the light can be emitted through the light outlet portion 108 under the action of the first reflective member 116 and the second reflective member 118. That is, the user cannot directly view the structure under the cover plate 102 from above the cover plate 102, thereby completely obscuring the structure under the cover plate 102.

As a possible implementation manner, as shown in fig. 3, the cover plate 102 is further provided with a light guide layer 112 and two light transmissive layers 110, the light guide layer 112 is located between the two light transmissive layers 110, and the light inlet portion 106 and the light outlet portion 108 are respectively disposed on two opposite sides of the light guide layer 112 and respectively disposed through the light transmissive layers 110; the refractive index of the light guide layer 112 is greater than that of the light transmission layer 110, and the incident angle α when the light is emitted from the light guide layer 112 to the light transmission layer 110 is greater than the critical angle.

In this embodiment, as shown in fig. 3, at least two light-transmitting layers 110 are disposed on the cover plate at intervals, and the light-guiding layer 112 is disposed between the two light-transmitting layers 110 at intervals. As shown in fig. 3, the light inlet portion 106 and the light outlet portion 108 are disposed on opposite sides of the light guide layer 112 and are disposed to extend into the two light transmission layers 110, respectively. It is understood that the light guide layer 112 and the light transparent layer 110 are both structures that can allow light to pass through.

In addition, as shown in fig. 3, the refractive index of the light guide layer 112 is greater than that of the light transmissive layer 110, and it is ensured that the incident angle α when light is emitted from the light guide layer 112 to the light transmissive layer 110 is greater than the critical angle during use. That is, in the use process of the optical assembly, the light firstly enters the light inlet 106 and the light guiding layer 112, and then is emitted from the light guiding layer 112 to the light transmitting layer 110 under the action of the first reflecting member 116. When light is emitted from the light guide layer 112 to the light transmissive layer 110, the refractive index of the light guide layer 112 is larger than that of the light transmissive layer 110, and the incident angle α of the light is larger than the critical angle of the light transmissive layer 110. Based on the total reflection principle, the light rays emitted to the light-transmitting layer 110 are totally reflected at the junction of the light-transmitting layer 110 and the light guide layer 112, so that all the light rays are still transmitted in the light guide layer 112 after the light path is changed; the above-mentioned steps are repeated until the light finally changes the propagation path again under the reflection of the second reflecting member 118, and is totally emitted through the light emitting portion 108.

In particular, as shown in fig. 3, due to the cooperation of the transparent layer 110 and the light guide layer 112, the light is totally reflected inside the cover plate 102, so that the intensity of the incident light is equal to that of the emergent light, and the light is prevented from being attenuated when being transmitted inside the cover plate 102. It should be noted that when the light is applied to the image display, the image display effect can be ensured, which is very important to ensure the definition of the image display.

Specifically, the cover plate 102 may have the light-transmitting layer 110 and the light-guiding layer 112, or the light-transmitting layer 110 and the light-guiding layer 112 may be attached to the cover plate 102.

As one possible embodiment, as shown in fig. 5 and 6, the light guide layer 112 protrudes outward toward two opposite sides to form the light incident portion 106 and the light emergent portion 108. That is, the light inlet portion 106 and the light outlet portion 108 may be formed by protruding the light guide layer 112. By such design, the refractive indexes of the light inlet part 106, the light outlet part 108 and the light guide layer 112 can be ensured to be the same, and the integrated design can simplify the preparation process of the optical component, thereby reducing the cost of the optical component.

As one possible embodiment, the light-transmitting layer 110 includes, but is not limited to, the following: a coated light-transmitting layer, a resin light-transmitting layer and a glass light-transmitting layer. The light-transmitting layer 110 made of the above materials can ensure light transmission.

As one possible implementation, the light guide layer 112 includes, but is not limited to, the following: a glass light-transmitting layer and a resin light-transmitting layer. The light guide layer 112 made of the above materials can ensure light transmission.

Specifically, the transparent layer 110 and the light guide layer 112 should be made of different materials, and the refractive index of the light guide layer 112 is ensured to be greater than that of the transparent layer 110, so as to ensure that the light can be totally reflected when being emitted from the transparent layer 110 to the light guide layer 112.

As a possible implementation manner, as shown in fig. 5 and 6, the optical assembly further includes a light shielding layer 114, and the light shielding layer 114 is disposed on the cover plate 102 and disposed to be free from the light inlet portion 106 and the light outlet portion 108.

In this embodiment, the light-shielding layer 114 is disposed on the cover plate 102, and it is ensured that the light-shielding layer 114 does not cover the light-entering portion 106 and the light-exiting portion 108, that the light-shielding layer 114 does not affect the light-entering of the light-entering portion 106, and that the light-shielding layer 114 does not affect the light-exiting of the light-exiting portion 108. It is understood that the light-shielding layer 114 is a non-transparent material, i.e. light cannot pass through the light-shielding layer 114. The light-shielding layer 114 ensures non-light-transmission properties of the entire cover plate 102.

That is, the light-shielding layer 114 itself has the function of blocking light, and light can only enter the cover plate 102 through the light-entering portion 106 and exit the cover plate 102 through the light-exiting portion 108. The light inlet part 106 and the light outlet part 108 are arranged on the cover plate 102 at intervals, so that the cover plate 102 can completely shield and cover the structure below, and the effect of appearance shielding is achieved.

Specifically, the light shielding layer 114 may be formed by applying a design ink or other non-transparent material.

As a possible embodiment, as shown in fig. 4 and 5, the first and second reflecting

members

116 and 118 are gratings. The grating is selected as the first reflecting member 116 and the second reflecting member 118, and the structures of the first reflecting member 116 and the second reflecting member 118 are simplified on the basis of ensuring the change of the propagation direction of the light. And the cost of the grating is lower, which can further reduce the cost of the first reflector 116 and the second reflector 118.

As a possible embodiment, as shown in fig. 5 and 7, the number of the light incoming portions 106 is one, and the number of the light outgoing portions 108 is one; the number of the first reflecting members 116 is one, and the first reflecting members are arranged opposite to the light inlet part 106; the number of the second reflecting members 118 is one, and the second reflecting members are arranged opposite to the light emergent portion 108; the light reflected by the first reflecting member 116 is reflected by the second reflecting member 118 and propagates toward the light exit portion 108.

In this embodiment, the number of the first reflective member 116 and the light incident portion 106 is one, and the light incident portion 106 and the first reflective member 116 are used together, so that the light incident from the light incident portion 106 is reflected for the first time by the first reflective member 116. The number of the second reflecting members 118 and the number of the light emitting portions 108 are both one, and the light emitting portions 108 are used in cooperation with the second reflecting members 118, so that the light rays are emitted through the light emitting portions 108 under the action of the second reflecting members 118. And, the second reflecting member 118 is a total reflection grating. That is, when the light is emitted to the second reflecting member 118, all the light is emitted to the light emitting portion 108.

Specifically, as shown in fig. 5, light firstly enters the cover plate 102 through the light inlet portion 106 and contacts the first reflective member 116, and the light is reflected for the first time by the first reflective member 116 and is emitted to the second reflective member 118; then, the light is reflected again by the second reflecting member 118, and all of the light is emitted through the light emitting portion 108. That is, in this embodiment, a beam of light can be emitted by a beam of light under the action of the second reflecting member 118.

Specifically, when the first reflecting member 116 is closer to the second reflecting member 118, the light reflected by the first reflecting member 116 is directly emitted to the second reflecting member 118; when the first reflective member 116 is far away from the second reflective member 118, the light reflected by the first reflective member 116 is reflected to the second reflective member 118 after multiple total reflections.

As one possible embodiment, as shown in fig. 6 and 8, the number of the light inlet portions 106 is one, the number of the light outlet portions 108 is multiple, and the light outlet portions 108 are distributed at intervals; the number of the first reflecting members 116 is one, and the first reflecting members are arranged opposite to the light inlet part 106; the number of the second reflecting members 118 is plural, and the plural second reflecting members 118 are respectively arranged opposite to the plural light emergent portions 108; in the distribution direction of the plurality of light-emitting portions 108, the light reflected by the first reflective member 116 partially propagates toward the first light-emitting portion 108 under the action of the first second reflective member 118, and partially propagates toward the next second reflective member 118, until the light is directed toward the last light-emitting portion 108 under the action of the last second reflective member 118.

In an embodiment, as shown in fig. 6, the number of the first reflective member 116 and the light incident portion 106 is one, and the light incident portion 106 and the first reflective member 116 are used together, so that the light incident from the light incident portion 106 is reflected for the first time by the first reflective member 116. The number of the second reflecting pieces 118 and the light emitting parts 108 is multiple, the multiple second reflecting pieces 118 are arranged at intervals, and the multiple light emitting parts 108 are opposite to the multiple second reflecting pieces 118, so that the matching use of one second reflecting piece 118 and one light emitting part 108 is ensured.

In particular, the materials of the second reflective members 118 disposed at intervals are different, and the second reflective member 118 farthest from the light incident portion 106 is a total reflection grating. That is, the light reflected by the total reflection grating is totally emitted to the light emitting portion 108 farthest from the light incident portion 106. The plurality of gratings lower from the light incident portion 106 are semi-reflective gratings. That is, a part of the light reflected by the semi-reflective grating is emitted to an exit portion 108 opposite to the semi-reflective grating, and another part of the light is continuously transmitted toward the next second reflective member 118 under the action of the semi-reflective grating, and the process is repeated until the light passes through the last total-reflective grating and is all emitted to an exit portion 108 farthest from the entrance portion 106.

In the specific embodiment, as shown in fig. 6 and 8, the three light emitting portions 108 and the three second reflecting members 118 are provided as an example, and the above embodiment is further explained.

As shown in fig. 6, three second reflectors 118 are disposed on the light inlet portion 106, which are a light inlet side second reflector 118a, a middle second reflector 118b, and a light outlet side second reflector 118 c; the middle second reflecting member 118b is located between the light-entering side second reflecting member 118a and the light-exiting side second reflecting member 118c, and the light-entering side second reflecting member 118a is disposed close to the first reflecting member 116. Correspondingly, three light-out parts 108 are correspondingly arranged, namely a light-in side light-out part 108a, a middle light-out part 108b and a light-out side light-out part 108 c; the light incident side light emergent portion 108a is opposite to the light incident side second reflecting member 118a, the intermediate light emergent portion 108b is opposite to the intermediate second reflecting member 118b, and the light emergent side light emergent portion 108c is opposite to the light emergent side second reflecting member 118 c. Three cameras 120 are correspondingly arranged, namely a light inlet side camera 120a, a middle camera 120b and a light outlet side camera 120 c; the light-entering side camera 120a is opposed to the light-entering side light-exiting portion 108a, the middle camera 120b is opposed to the middle light-exiting portion 108b, and the light-exiting side camera 120c is opposed to the light-exiting side light-exiting portion 108 c.

Specifically, as shown in fig. 6, during use, light enters the cover plate 102 through the light entering portion 106, and is emitted to the light entering side second reflecting member 118a by the reflection of the first reflecting member 116; the light is divided into two light beams under the action of the light inlet side second reflecting piece 118a, one light beam is emitted to the light inlet side camera 120a through the light inlet side light outlet part 108a, and a part of light beam is continuously emitted to the middle second reflecting piece 118 b; then, under the action of the middle second reflecting member 118b, a part of the light is emitted to the middle camera 120b through the middle light-emitting portion 108b, and a part of the light continues to be emitted to the light-emitting side second reflecting member 118 c; then, the light is emitted to the light-emitting side camera 120c through the light-emitting side light-emitting portion 108c by the light-emitting side second reflecting member 118 c.

In particular, based on the above arrangement, a light beam emitted to the inside of the cover plate 102 can be divided into a plurality of light beams. Similar to the "pupil expanding principle", the requirement of multiple light outgoing positions can be satisfied on the basis of one light incoming portion 106.

Specifically, as shown in fig. 6 and 8, when the optical assembly is applied to an electronic terminal having a plurality of cameras 120, it is possible to avoid providing a plurality of through holes on the cover plate 102, further reduce the influence of the plurality of cameras 120 on the appearance of the whole device, make the arrangement of the cameras 120 under the cover plate 102 more flexible, reduce the difficulty of stacking the structure, and improve the commonality of the cameras 120 in different projects.

Specifically, when the distance between two adjacent reflecting pieces is short, the light reflected by the first reflecting piece is directly emitted to the second reflecting piece; when the distance between two adjacent reflecting pieces is long, the light reflected by the first reflecting piece is reflected to the second reflecting piece after multiple total reflections.

As shown in fig. 5, 6, 7, and 8, an electronic device according to some embodiments of the present application includes: a camera 120; and an optical assembly as in any of the embodiments above; the camera 120 is disposed opposite to the light emitting portion 108, and when the light is emitted from the light emitting portion 108 to the cover plate 102, the light enters the camera 120.

Furthermore, the electronic device according to the embodiments of the present application includes the imaging apparatus according to some embodiments as described above. Therefore, all the advantages of the above-mentioned image pickup apparatus are obtained, and are not discussed herein.

Specifically, as shown in fig. 5 and 6, during the use of the electronic device, light can be incident into the cover plate 102 through the light incident portion 106 and then incident into the position where the first reflection member 116 is located; the light rays reflected and changed the transmission direction after striking the first reflecting member 116, and spread toward the position of the second reflecting member 118; after the light rays strike the second reflecting member 118, the light rays are reflected again and change the transmission direction, and are transmitted towards the position where the light emergent portion 108 is located; after being emitted to the light emitting part 108, the light rays directly emit out of the cover plate 102 and enter the camera 120, so that the optical requirements of the camera 120 in use are met.

Moreover, due to the change of the light propagation path by the first reflective member 116 and the second reflective member 118, the light incoming portion 106 and the light outgoing portion 108 can be disposed at different positions of the cover plate 102, and a through hole does not need to be formed in the cover plate 102, thereby ensuring that the cover plate 102 can completely cover the internal structure of the electronic device.

Specifically, the cover plate 102 of the optical assembly covers the body of the electronic device, thereby shielding the internal structure of the body. Due to the arrangement of the first reflector 116 and the second reflector 118, the optical assembly meets the optical requirements of the light source element on the body.

In one possible design, the electronic device further includes: and the power supply device is arranged in the body, and the cover plate 102 of the optical component is covered on the power supply device. That is, the cover plate 102 of the optical assembly is directly used as a battery cover, thereby protecting the battery.

Specifically, the electronic devices include, but are not limited to, the following: handheld terminal, panel computer, notebook computer. The handheld terminal can be a mobile phone.

As shown in fig. 4, 5 and 6, in the embodiment of the present application, the light inlet portion 106, the light outlet portion 108, the first reflective member 116 and the second reflective member 118 are disposed on the cover plate 102, so as to change the propagation direction of light, and hide the camera 120 under the cover plate 102, thereby implementing an integrated design of the cover plate 102, and the camera 120 cannot be directly seen from the external surface. Specifically, a first reflecting member 116 is added on a part of the lower surface of the cover plate 102 to change an incident light path, so that the light path enters the cover plate 102; after the light enters the designated position, the light is incident into the camera 120 through the second reflecting member 118 on the cover plate 102.

In the embodiment, the first reflector 116 and the second reflector 118 are disposed at the positions of the cover plate 102 where the light enters and exits, the incident light angle is changed by the optical design of the first reflector 116, so that the light enters the light guide layer 112, the light is transmitted to the vicinity of the camera 120 through the light guide layer 112, and the light in the light guide layer 112 is reflected to the camera 120 through the second reflector 118. As shown in fig. 4 and 5, the first reflective member 116 and the second reflective member 118 may be gratings, and the gratings may be printed on the surface of the cover plate 102 by nano-imprinting using organic resin, and then cured and fixed on the surface of the cover plate 102 by glue.

In the embodiment shown in fig. 3, the light is transmitted without loss during the transmission process, and two conditions need to be satisfied: the refractive index of the light guide layer 112 is greater than that of the light transmission layer 110, and the incident angle α of the light emitted from the light guide layer 112 to the light transmission layer 110 is greater than the critical angle. Based on the total reflection principle, the total reflection of the light inside the cover plate 102 can be realized.

In addition, the light-transmitting layer 110 may be one of a coated light-transmitting layer, a resin light-transmitting layer, and a glass light-transmitting layer; the light guide layer 112 may be one of a glass light guide layer and a resin light guide layer; the light-transmitting layer 110, the cover plate 102 and the grating are further provided with a light-shielding layer 114, and the light-shielding layer 114 is prepared by coating appearance ink or other non-transparent materials, so that the appearance shielding effect is achieved.

Further, as shown in fig. 6 and 8, a "pupil expanding" principle of the grating in the application of the AR technology (an Augmented Reality, a technology that combines virtual information with the real world) may be adopted, and the cover plate 102 is provided with the light inlet portion 106 and the light outlet portions 108, so as to meet the working requirements of the cameras 120, further reduce the influence of the cameras 120 on the appearance of the whole machine, make the arrangement of the cameras 120 inside the whole machine more flexible by adjusting the grating design, reduce the difficulty of the structure stacking, and improve the commonality of the cameras 120 on different projects.

Specifically, as shown in fig. 6 and 8, when a plurality of cameras 120 are provided, the light inlet portion 106 is used in cooperation with the first reflecting member 116, so that the light rays incident from the light inlet portion 106 are reflected for the first time by the first reflecting member 116; the plurality of second reflecting members 118 are arranged at intervals, and the plurality of light emergent portions 108 are opposite to the plurality of second reflecting members 118, so that the cooperation of one second reflecting member 118 and one light emergent portion 108 is ensured.

The second reflective members 118 disposed at intervals are made of different materials, and the second reflective member 118 farthest from the light incident portion 106 is a total reflection grating. The light beams reflected by the total reflection grating all emit to the light emitting portion 108 farthest from the light entering portion 106. The plurality of gratings lower from the light incident portion 106 are semi-reflective gratings. That is, a part of the light reflected by the semi-reflective grating is emitted to an exit portion 108 opposite to the semi-reflective grating, and another part of the light is continuously transmitted toward the next second reflective member 118 under the action of the semi-reflective grating, and the process is repeated until the light passes through the last total-reflective grating and is all emitted to an exit portion 108 farthest from the entrance portion 106.

Other configurations of …, such as … and …, and the like and operation according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 application. 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.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical assembly, comprising:

the cover plate is provided with a light inlet part, a light outlet part, a first reflecting piece and a second reflecting piece;

the first reflecting piece is arranged opposite to the light inlet part, the second reflecting piece is arranged opposite to the light outlet part, and when light enters the cover plate through the light inlet part, the light is reflected by the first reflecting piece, transmitted in the cover plate and reflected by the second reflecting piece and then emitted from the light outlet part.

2. The optical assembly of claim 1,

the light inlet part and the light outlet part are respectively positioned at two opposite sides of the cover plate.

3. The optical assembly of claim 1,

the light inlet part is positioned on the side of the light outlet part.

4. Optical assembly according to one of claims 1 to 3,

the cover plate is also provided with a light guide layer and two light transmission layers, the light guide layer is positioned between the two light transmission layers, and the light inlet part and the light outlet part are respectively arranged at two opposite sides of the light guide layer and respectively penetrate through the light transmission layers;

the refractive index of the light guide layer is larger than that of the euphotic layer, and the incident angle of the light rays emitted to the euphotic layer from the light guide layer is larger than a critical angle.

5. The optical assembly of claim 4,

the light guide layer protrudes outwards towards two opposite sides to form the light inlet part and the light outlet part.

6. The optical assembly of claim 4,

the light-transmitting layer includes one of: a coated euphotic layer, a resin euphotic layer and a glass euphotic layer;

the light guiding layer includes one of: a glass light-transmitting layer and a resin light-transmitting layer.

7. Optical assembly according to one of claims 1 to 3,

the cover plate is further provided with a light shielding layer, and the light shielding layer is arranged to avoid the light inlet portion and the light outlet portion.

8. Optical assembly according to one of claims 1 to 3,

the first reflecting piece is a grating;

the second reflector is a grating.

9. Optical assembly according to one of claims 1 to 3,

the number of the light inlet part is one, and the number of the light outlet part is one;

the number of the first reflecting pieces is one, and the first reflecting pieces are arranged opposite to the light inlet part;

the number of the second reflecting pieces is one, and the second reflecting pieces are arranged opposite to the light emergent part;

the light reflected by the first reflecting member is reflected by the second reflecting member and propagates toward the light emitting portion.

10. Optical assembly according to one of claims 1 to 3,

the number of the light inlet parts is one, the number of the light outlet parts is multiple, and the light outlet parts are distributed at intervals;

the number of the second reflecting pieces is multiple, and the second reflecting pieces are respectively opposite to the light emergent parts;

in the distribution direction of the plurality of light-emitting parts, the light rays reflected by the first reflecting member partially propagate towards the first light-emitting part under the action of the first second reflecting member, and partially propagate towards the next second reflecting member until the light rays are emitted towards the last light-emitting part under the action of the last second reflecting member.

11. An electronic device, comprising:

a camera; and

the optical assembly of any one of claims 1 to 10;

the camera is arranged opposite to the light-emitting part, and the light enters the camera under the condition that the light is emitted out of the cover plate from the light-emitting part.