WO2019096088A1

WO2019096088A1 - Lampshade and mobile terminal

Info

Publication number: WO2019096088A1
Application number: PCT/CN2018/115007
Authority: WO
Inventors: 齐永红; 黄攀
Original assignee: 维沃移动通信有限公司
Priority date: 2017-11-20
Filing date: 2018-11-12
Publication date: 2019-05-23
Also published as: CN107940403A

Abstract

A lampshade and a mobile terminal. The lampshade comprises a lampshade body (101) and multiple micro lenses (102) that are provided on a light-injecting surface (1011) of the lampshade body (101) and that are distributed in an array or arranged crisscrossingly, each micro lens (102) forming a light-injecting texture on the light-injecting surface (1011), wherein the texture structure of the light-injecting texture in a first direction is different from that in a second direction, and the first direction is perpendicular to the second direction.

Description

Lampshade and mobile terminal

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201711159888.3, filed on Jan.

Technical field

The present disclosure relates to the field of electronic product technologies, and in particular, to a lampshade and a mobile terminal.

Background technique

Generally speaking, the picture of the mobile phone camera is a rectangle of 4:3. The entrance surface of the conventional Fresnel lens is a Fresnel surface, which is a circle of concentric peaks and valleys undulating structure, which can only be in a rotationally symmetrical radial direction. The spot is modulated, so the spot is circularly distributed, and the uniformity of the long side (X direction) and the short side (Y direction) of the picture is greatly different, resulting in low contrast of the four corner areas. To improve the uniformity of illumination and adjust the Fresnel texture, the spot will expand outward along the X direction and the Y direction at the same time. When the X direction uniformity reaches the standard, the Y direction light falls outside the effective picture, which reduces the utilization of light energy. Usually the light energy utilization rate is below 40%. Therefore, the traditional Fresnel fill light structure, it is contradictory to improve the uniformity of illumination and improve the utilization of light energy. It is difficult to balance the two.

Summary of the invention

The present disclosure is implemented in that the lamp cover includes a lamp cover body and a plurality of microlenses arranged in an array or staggered on the light incident surface of the lamp cover body, and each of the microlenses forms light into the light incident surface. a texture, the texture structure in the first direction is different from the texture structure in the second direction, and the first direction is perpendicular to the second direction.

In a first aspect, an embodiment of the present disclosure provides a lamp cover including a lamp cover body and a plurality of microlenses arranged in an array or staggered on a light incident surface of the lamp cover body, each of the microlenses being The light incident surface is formed into a light texture, and the texture structure of the light incident texture in the first direction is different from the texture structure in the second direction, and the first direction is perpendicular to the second direction.

In a second aspect, the embodiment of the present disclosure further provides a mobile terminal, the mobile terminal includes a lamp cover, and the lamp cover includes a lamp cover body and a plurality of microlenses arranged in an array or staggered on a light incident surface of the lamp cover body. Each of the microlenses forms a light texture on the light incident surface, and the texture structure of the light incident texture in the first direction is different from the texture structure in the second direction, the first direction and the second direction vertical.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments of the present disclosure will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a structural diagram of a lampshade provided by an embodiment of the present disclosure;

2 is a structural view of a microlens in a lamp cover according to an embodiment of the present disclosure;

3 is a second structural diagram of a lampshade provided by an embodiment of the present disclosure;

FIG. 4 is a structural diagram of a mobile terminal according to an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

Embodiments of the present disclosure provide a lampshade and a mobile terminal to solve the problem that illumination uniformity and light energy utilization cannot be simultaneously considered.

Referring to FIG. 1 and FIG. 2, an embodiment of the present disclosure provides a lampshade, as shown in the figure, the lampshade body 101 and the light-emitting surface 1011 disposed on the light-emitting surface 1011 of the lampshade body 101 are arranged in an array or staggered. a microlens 102, each of the microlenses 102 forming a light texture on the light incident surface 1011, the texture structure of the light incident texture in the first direction is different from the texture structure in the second direction, One direction is perpendicular to the second direction.

In the embodiment of the present disclosure, the first direction may be an X direction, and the second direction may be a Y direction. The structure of the microlens 102 can be set according to actual needs. For example, in the embodiment, the microlens 102 is a pyramid or a prism structure, and the bottom surface of the microlens 102 is coincident with the light incident surface 1011. The light incident texture has a plurality of microlenses formed by an incident surface formed in the X direction and the Y direction. For example, the texture structure of the light incident texture in the first direction includes a first incident of the microlens distributed in the first direction. The surface 1021, the texture structure of the light incident texture in the second direction includes a second incident surface 1022 in which the microlens is distributed in the second direction.

Specifically, the texture structure of the light-incorporating texture in the first direction is different from the texture structure in the second direction, and may be represented by various forms. For example, in an embodiment, the first incident surface 1021 and the second incident may be disposed. In the present embodiment, the first incident surface 1021 and the light incident surface 1011 form a first angle, and the second incident surface 1022 and the light incident surface are different from each other. 1011 forms a second angle, and the first angle is different from the angle of the second angle.

As shown in FIG. 2, the microlens 102 has two first incident surfaces 1021 and two second incident surfaces 1022 in a first direction, and the first angle formed by the two first incident surfaces 1021 and the light incident surface 1011 is respectively Α1 and α2, the second angle formed by the two second incident surfaces 1022 and the light incident surface 1011 is β1 and β2, respectively, wherein when α1=α2=β1=β2, the microlenses are in the X direction and the Y direction. The degree of modulation is the same. In this embodiment, (α1=α2)≠(β1=β2), so that the texture structure of the light-incorporating texture in the first direction is different from the texture structure in the second direction, thereby realizing the spot in the X direction and the Y direction. There are different intensity distributions.

In another embodiment, the bottom surface of the microlens is quadrangular, and the length of the bottom surface in the first direction is different from the length of the bottom surface in the second direction. In this embodiment, the bottom surface of the microlens is respectively connected to the first incident surface 1021 and the second incident surface 1022, wherein the length of the bottom surface in the first direction corresponds to the width of the bottom of the first incident surface 1021, and the bottom surface is in the second direction. The length corresponds to the width of the bottom of the second incident surface 1022. In this embodiment, since the widths of the bottoms of the first incident surface 1021 and the second incident surface 1022 are different, the texture structure of the light entering texture in the first direction is The texture structure in the two directions is different, and thus the spot has different intensity distributions in the X direction and the Y direction.

Thus, in the embodiment of the present disclosure, since the plurality of microlenses 102 are disposed on the incident surface of the lampshade body 101, each of the microlenses 102 forms a light texture on the light incident surface 1011, and the light entrance texture is first. The texture structure in the direction is different from the texture structure in the second direction, thereby improving the utilization of light energy while ensuring the uniformity of the illumination.

In addition, the length of the bottom surface of the microlens 102 in different directions may be used as an adjustment variable, or the angle between the first incident surface and the second incident surface relative to the light incident surface 1011 may be used as an adjustment variable to adjust the modulation degree of the light, since the microlens may The number of variables to be adjusted is relatively large, which greatly improves the design flexibility. For the same spot distribution form, there are various structural options to choose from, and under the same uniformity requirement, the parameter tolerance is large and can be made into a universal Designed to avoid wasting costs and time for multiple developments.

It should be understood that the specific structure of the above-mentioned microlens 102 may be set according to actual needs. For example, in an embodiment, the microlens 102 may be a quadrangular pyramid structure, and in another embodiment, the microlens 102 may also be It is a quadrangular boss structure having a top surface parallel to the bottom surface.

Specifically, the arrangement of the plurality of microlenses 102 can be set according to actual needs. In this embodiment, a plurality of microlenses 102 can be distributed in an array on the light incident surface 1011 (as shown in FIG. 1). In addition, a plurality of microlenses 102 may be arranged alternately with each other (as shown in FIG. 3).

In this embodiment, the distance between the adjacent two microlenses 102 can be set according to actual needs. For example, the spacing between two adjacent microlenses can be set to 0, thereby causing the plurality of microlenses 102. Tightly connected.

Further, the shape of the lamp cover may be set according to actual needs. For example, in the embodiment, preferably, the lamp cover is arranged in a square shape. For example, it can be set as a rectangular lampshade structure, that is, the light-incident surface is rectangular; it can also be set as a square lampshade structure, that is, the light-incident surface is square.

It should be understood that the heights of the plurality of microlenses 102 disposed on the light incident surface 1011 may be set to be uniform, and different heights may be set according to the positions where the microlenses 102 are located.

Further, the size of the microlens 102 described above may be set according to actual needs, for example, the size is set between 100 μm and 200 μm, and specifically, the globe body and the microlens are integrally molded by injection molding. For example, optical plastics (such as PMMA, PC) can be fabricated by an injection molding process, which has no process and cost challenges compared to conventional Fresnel fill lenses. In order to enhance the illumination effect, preferably, when the ratio of the length of the bottom surface in the first direction to the length of the bottom surface in the second direction is 2/1, the first angle is 45°. The second angle is 30°.

Thus, in the embodiment of the present disclosure, since a plurality of microlenses are disposed on the incident surface of the lampshade body, each of the microlenses forms a light texture on the light incident surface, and the texture of the light incident texture in the first direction The structure is different from the texture structure in the second direction, thereby improving the utilization of light energy while ensuring uniformity of illumination.

Further, the present disclosure further provides a mobile terminal, which includes the lamp cover in the above embodiment, and the structure of the lamp cover can be referred to the above embodiment, and details are not described herein again, which are provided by the mobile terminal provided by the embodiment of the present disclosure. The lampshade structure in the above embodiment has all the beneficial effects of the lampshade structure in the above embodiment, and details are not described herein again.

Please refer to FIG. 4. FIG. 4 is a structural diagram of a mobile terminal provided by an implementation of the present disclosure.

As shown in FIG. 4, the mobile terminal 400 includes a radio frequency (RF) circuit 410, a memory 420, an input unit 430, a display unit 440, a processor 450, an audio circuit 460, a communication module 470, a power supply 480, and a lampshade. a plurality of microlenses arranged in an array or staggered on the light incident surface 1011 of the lampshade body, each of the microlenses forming a light texture on the light incident surface, the light entrance texture The texture structure in the first direction is different from the texture structure in the second direction, the first direction being perpendicular to the second direction.

Optionally, the microlens is a pyramid or a prismatic structure, and a bottom surface of the microlens coincides with the light incident surface.

Optionally, the microlens is a quadrangular vertebral structure.

Optionally, the microlens is a quadrangular boss structure having a top surface parallel to the bottom surface.

Optionally, the texture structure of the light incident texture in the first direction comprises a first incident surface of the microlens distributed in a first direction, and the texture structure of the light incident texture in the second direction comprises the a second incident surface of the microlens distributed in the second direction, the first incident surface forms a first angle with the light incident surface, and the second incident surface forms a second angle with the light incident surface, The first angle is different from the angle of the second angle.

Optionally, the bottom surface of the microlens is quadrangular, and the length of the bottom surface in the first direction is different from the length of the bottom surface in the second direction.

Optionally, the spacing between two adjacent microlenses is zero.

Optionally, the lampshade body and the microlens are integrally molded by injection molding.

The input unit 430 can be used to receive digital or character information input by the user, and generate signal input related to user setting and function control of the mobile terminal 400. Specifically, in the embodiment of the present disclosure, the input unit 430 may include a touch panel 431. The touch panel 431, also referred to as a touch screen, can collect touch operations on or near the user (such as the operation of the user using any suitable object or accessory such as a finger or a stylus on the touch panel 431), and according to the preset The programmed program drives the corresponding connection device. Alternatively, the touch panel 431 may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 450 is provided and can receive commands from the processor 450 and execute them. In addition, the touch panel 431 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 431, the input unit 430 may further include other input devices 432, which may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like. One or more of them.

The display unit 440 can be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 400. The display unit 440 can include a display panel 441. Alternatively, the display panel 441 can be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).

It should be noted that the touch panel 431 can cover the display panel 441 to form a touch display screen, and when the touch display screen detects a touch operation on or near it, it is transmitted to the processor 450 to determine the type of the touch event, and then the processor 450 provides a corresponding visual output on the touch display depending on the type of touch event.

The touch display includes an application interface display area and a common control display area. The arrangement manner of the application interface display area and the display area of the common control is not limited, and the arrangement manner of the two display areas can be distinguished by up-and-down arrangement, left-right arrangement, and the like. The application interface display area can be used to display the interface of the application. Each interface can contain interface elements such as at least one application's icon and/or widget desktop control. The application interface display area can also be an empty interface that does not contain any content. The common control display area is used to display controls with high usage, such as setting buttons, interface numbers, scroll bars, phone book icons, and the like.

The processor 450 is a control center of the mobile terminal 400, and connects various parts of the entire mobile phone by using various interfaces and lines, by running or executing software programs and/or modules stored in the first memory 421, and calling the second storage. The data in the memory 422 performs various functions and processing data of the mobile terminal 400, thereby performing overall monitoring of the mobile terminal 400. Alternatively, processor 450 may include one or more processing units.

The mobile terminal may include at least one of a mobile terminal, a tablet computer, a laptop portable computer, a SLR camera, a micro single camera, a handheld game console, and the like.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure, and should cover It is within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosure should be determined by the scope of the claims.

Claims

A lampshade includes a lampshade body and a plurality of microlenses arranged in an array or staggered on a light incident surface of the lampshade body, each of the microlenses forming a light texture on the light incident surface, The texture structure of the light entrance texture in the first direction is different from the texture structure in the second direction, the first direction being perpendicular to the second direction.
The lampshade according to claim 1, wherein said microlens is a pyramid or a prismatic structure, and a bottom surface of said microlens coincides with said light incident surface.
The lampshade of claim 2 wherein said microlenses are quadrangular vertebral structures.
The lampshade according to claim 2, wherein said microlens is a quadrangular boss structure having a top surface parallel to said bottom surface.
The lampshade of claim 2, wherein the texture structure of the light incident texture in the first direction comprises a first incident surface of the microlens distributed in a first direction, and the incoming light texture is in a second direction The texture structure includes a second incident surface of the microlens distributed in a second direction, the first incident surface forming a first angle with the light incident surface, the second incident surface and the light incident surface Forming a second angle, the first angle being different from the angle of the second angle.
The lampshade according to claim 5, wherein the bottom surface of the microlens is disposed in a quadrangular shape, and a length of the bottom surface in the first direction is different from a length of the bottom surface in the second direction.
The lampshade according to claim 6, wherein the ratio of the length of the bottom surface in the first direction to the length of the bottom surface in the second direction is 2/1, the first angle is 45 °, the second angle is 30°.
The lampshade according to any one of claims 1 to 7, wherein a spacing between two adjacent microlenses is zero.
A lampshade according to any one of claims 1 to 7, wherein the lampshade is arranged in a square shape.
A mobile terminal comprising the lampshade according to any one of claims 1 to 9.