WO2020192372A1

WO2020192372A1 - Lamp module and terminal device

Info

Publication number: WO2020192372A1
Application number: PCT/CN2020/077745
Authority: WO
Inventors: 徐大清
Original assignee: 维沃移动通信有限公司
Priority date: 2019-03-28
Filing date: 2020-03-04
Publication date: 2020-10-01
Also published as: CN109981848B; CN109981848A

Abstract

Provided in the present disclosure are a lamp module and terminal device. The lamp module comprises: light sources and a lamp cover. The light sources comprise a first light source and a second light source, and the second light source is arranged around the first light source. The lamp cover comprises a first cover body part and a second cover body part, the second cover body part is arranged around the first cover body part, the first cover body part is arranged corresponding to the first light source, and the second cover body part is arranged corresponding to the second light source. A first surface of the first cover body part facing the first light source is an arc-shaped surface, the arc-shaped surface is an arc-shaped surface in which the first surface is recessed toward a second surface, and the second surface and the first surface are two surfaces facing away from each other on the first cover body part. In the direction from a first end of the second cover body part close to the first cover body part to the other end away from the first cover body part, the thickness of the second cover body part increases.

Description

Lamp module and terminal equipment

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910242369.6 filed in China on March 28, 2019, the entire content of which is incorporated herein by reference.

Technical field

The embodiments of the present disclosure relate to the field of communication technologies, and in particular to a lamp module and terminal equipment.

Background technique

With the continuous improvement of camera performance on mobile terminals, more and more users are accustomed to taking photos in various scenarios. In order to improve the problem of relatively poor image quality at night and in low-light environments, mobile terminals usually use a flash to flash the light at the moment of taking a picture and improve the picture quality.

The flash system commonly used on mobile terminals at present consists of a flash and a flash lens, and the light emitted by the flash is collected by the lens to fill light for the subject. In the related art, in addition to the conventional viewing angle lens, the mobile terminal also has a wide-angle lens in order to be able to shoot larger scenes at close range and bring a better shooting experience to the user. Here, the viewing angle of a conventional viewing angle lens is usually about 76°, and the viewing angle of a wide-angle lens is usually about 120°. Because the viewing angles of the above two lenses are different, the light emitted by the flash in the flash system in the related art is illuminated by the flash lens. The angle is fixed and cannot be adjusted.

Summary of the invention

The embodiments of the present disclosure provide a lamp module and a terminal device to solve the problem of a fixed viewing angle of light when using a flash system to take pictures in the related art.

In order to solve the above technical problems, the present disclosure is implemented as follows:

In the first aspect, embodiments of the present disclosure provide a flash module, including:

The light source includes a first light source and a second light source, and the second light source is arranged around the first light source;

The lamp cover includes a first cover body portion and a second cover body portion, the second cover body portion is arranged around the first cover body portion, the first cover body portion is arranged corresponding to the first light source, the The second cover body is arranged corresponding to the second light source;

The first surface of the first cover body facing the first light source is an arc-shaped surface, and the arc-shaped surface is an arc-shaped surface that is recessed from the first surface to the second surface. The first surface is two opposite surfaces on the first cover body part;

The thickness of the second cover body portion is gradually increased from one end of the second cover body portion close to the first cover body portion toward the other end away from the first cover body portion.

In the second aspect, the embodiments of the present disclosure also provide a terminal device, including:

The lamp module as described in the above embodiment;

The main body, the lamp module is fixed to the main body.

In the above-mentioned solution of the embodiment of the present disclosure, the first light source, the second light source arranged around the first light source, the first cover body part arranged corresponding to the first light source, the second cover body part arranged around the first cover body, The second cover body portion is disposed corresponding to the second light source, wherein the first surface of the first cover body portion facing the first light source is an arc-shaped surface, and the arc-shaped surface is an arc-shaped surface recessed from the first surface to the second surface, The second surface and the first surface are the two opposite surfaces of the first cover body part; the second cover body part is close to the first cover body part in the direction of the other end away from the first cover body part, the second cover body part The thickness of the body is gradually increasing. In this way, the lamp module with the above-mentioned constituent elements and structure is applied to terminal equipment equipped with cameras with different viewing angles, which can selectively supplement the light when taking pictures of cameras with different viewing angles and improve the light. Effective utilization rate, saving terminal power.

Description of the drawings

FIG. 1 is one of the structural schematic diagrams of a lamp module provided by an embodiment of the disclosure;

2 is the second structural diagram of the lamp module provided by the embodiment of the disclosure;

3 is a schematic diagram of a light source structure in a lamp module provided by an embodiment of the disclosure;

4 is a schematic structural diagram of a lampshade in a lamp module provided by an embodiment of the disclosure;

5 is a schematic diagram of a light refraction line of light emitted by a second light source in the lamp module through the second cover body;

Fig. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

As shown in Figures 1 to 2, the schematic diagrams of the structure of the lamp module provided by the embodiments of the present disclosure. The lamp module includes a light source and a lamp shade. The light source includes a first light source 1 and a second light source 2. The second light source 2 is arranged around the first light source 1; as shown in FIG. 3; the lamp shade includes a first cover body portion 3 and a second light source. Two cover body parts 4, the second cover body part 4 is arranged around the first cover body part 3, the first cover body part 3 is arranged corresponding to the first light source 1, and the second cover body part 4 is arranged corresponding to the second light source 2; The first surface of the body 3 facing the first light source 1 is an arc-shaped surface, the arc-shaped surface is an arc-shaped surface recessed from the first surface to the second surface, and the second surface and the first surface are opposite to the first cover body 3 The two surfaces of the back; the end of the second cover portion 4 close to the first cover portion 3 toward the other end away from the first cover portion 3, the thickness of the second cover portion 4 gradually increases. The thickness of the second cover body portion 4 gradually increases, which may be a linear increase or a sudden increase, and the form of the thickness increase is not limited.

It should be noted that since the first cover portion 3 is provided corresponding to the first light source 1, the first surface of the first cover portion 3 facing the first light source 1 is an arc-shaped surface, and the arc-shaped surface is from the first surface to the second surface. The concave arc-shaped surface will have a light-gathering effect. In this way, the light emitted by the first light source 1 is mainly concentrated to the target area on the side of the first cover 3 away from the first light source 1, as shown in FIG. 1.

Since the second cover part 4 is provided corresponding to the second light source 2, the end of the second cover part 4 close to the first cover part 3 in the direction away from the other end of the first cover part 3, the second cover part 4 The thickness increases, so that after the light emitted by the second light source 2 passes through the air, it is refracted for the first time by the second cover body 4 toward the third surface of the second light source 2, and then passes through the second cover body 4 and the third surface. The fourth surface opposite to the surface undergoes the second refraction, and the light will be refracted at a larger angle, that is, the light emitted by the second light source 2 mainly converges to the side of the second cover 4 away from the second light source 2 The peripheral area of the target area is shown in Figure 2.

Optionally, as shown in FIGS. 1 to 2, the third surface of the second cover portion 4 facing the second light source 2 has a plurality of concentric sawtooth portions 5.

Here, each sawtooth part 5 may be an annular sawtooth part arranged around the first cover body part 3, as shown in FIG. 4. It can also be intermittent curved sawtooth.

Also, a saw-tooth-shaped groove is formed between adjacent saw-tooth portions 5, and the plurality of saw-tooth portions 5 have the same center.

Specifically, each sawtooth portion 5 protrudes away from the center of the circle toward the edge of the second cover portion 4. As shown in FIG. 2, the edge side of the second cover body portion is a flat surface, and the convex direction of the sawtooth portion only needs to face the edge direction, and the fixed angle is not limited.

Here, each zigzag portion 5 has an inner side surface and an outer side surface located outside the inner side surface, wherein the inner side surface is closer to the first cover portion 3 than the outer side surface. That is, the inner side faces the axis where the center of the circle is located, and the outer side faces the edge of the second cover body.

It should be noted that the inner and outer sides of the serrated portion 5 extend in a direction approaching the second light source 2 to form protrusions. The protrusion is the protrusion described in the protrusion of each serrated portion 5 away from the center of the circle toward the edge of the second cover body portion 4.

Here, as shown in FIG. 5, the first included angle θ1 between the inner side surface and the vertical surface is greater than the second included angle θ2 between the outer side surface and the vertical surface.

It should be noted that by adjusting the angle between the first included angle θ1 and the second included angle θ2, the incident light angle θ3 of the second light source 2 can be adjusted, thereby controlling the angle of light refracting outward. Here, when θ1 becomes larger, the incident light angle θ3 becomes smaller.

Generally, the value range of θ1 is between 17° and 60°, and the value range of θ2 is between 15° and 30°.

It should be noted that when only the second light source 2 is turned on, the light emitted by the second light source 2 passes through the second cover portion 4 to form an annular aperture with a dark center.

Optionally, the refractive index of the second cover portion 4 is greater than the refractive index of air.

Here, optionally, the first cover body portion 3 and the second cover body portion 4 are integrally formed, and the material thereof is polymethyl methacrylate, commonly known as acrylic.

It should be noted that the refractive index of acrylic material with respect to air is usually 1.4965, and the incident light angle θ3 of the light entering the second cover 4 from the air from the second cover 4 toward the third surface of the second light source 2 is and The angle of refracted light θ4 satisfies: sinθ3/sinθ4=1.4965; the refractive index of air relative to the acrylic material is usually 1/1.4965, then the light enters the air from the fourth surface of the second cover part 4 opposite to the third surface. The angle θ5 and the refracted light angle θ6 satisfy: sinθ5/sinθ6=1/1.4965.

In other words, when the second light source 2 is turned on, the emitted light passes through the air, and then passes through the second cover body 4 after being refracted for the first time toward the third surface of the second light source 2 The fourth surface opposite to the third surface undergoes the second refraction, and the light rays will be refracted at a larger angle to cover a larger angle.

Optionally, the lamp module further includes: a driving circuit (not shown in the figure) respectively connected with the first light source 1 and the second light source 2 for driving the first light source 1 and/or the second light source 2 to light up.

It should be noted that the driving circuits can be arranged separately, that is, the first driving circuit is connected to the first light source 1 and is only used to drive the first light source 1 to turn on; the second driving circuit is connected to the second light source 2 and is only used to drive the first light source 1. The second light source 2 lights up.

Of course, the driving circuit can also be integrated, including two connection terminals, the first connection terminal is connected to the first light source 1, and the second connection terminal is connected to the second light source 2, for driving the first light source 1 and/or the second light source 1. Light source 2 lights up. The drive circuit can be set according to the actual situation, and there is no specific limitation here.

Here, in addition to driving the first light source 1 and/or the second light source 2 to turn on, the driving circuit is also used to control the magnitude and timing of the current.

The flash module provided by the embodiment of the present disclosure uses a first light source, a second light source arranged around the first light source, a first cover body part arranged corresponding to the first light source, and a second cover body part arranged around the first cover body part , The second cover body portion is arranged corresponding to the second light source, wherein the first surface of the first cover body portion facing the first light source is an arc-shaped surface, and the arc-shaped surface is an arc-shaped surface recessed from the first surface to the second surface , The second surface and the first surface are two opposite surfaces on the first cover body part; the second cover body part is close to the first cover body part in the direction of the other end away from the first cover body part, the second The thickness of the cover body is gradually increasing. In this way, applying the lamp module with the above-mentioned constituent elements and structures to terminal equipment equipped with cameras with different viewing angles can selectively supplement the light when taking pictures of cameras with different viewing angles. Light efficiency utilization, save terminal power.

As shown in FIG. 6, an embodiment of the present disclosure also provides a terminal device, including: the lamp module as described in the above embodiment; a body, and the lamp module is fixed to the body.

Optionally, the terminal device further includes:

A first camera and a second camera, the viewing angle of the second camera is larger than the viewing angle of the first camera;

A controller, which is respectively connected to the light module, the first camera and the second camera;

Wherein, the controller is used for controlling the first light source to turn on the supplementary light during the shooting process of the first camera;

During the shooting process of the second camera, the first light source and the second light source are controlled to simultaneously light up supplementary light.

Specifically, when the controller detects that the first camera is turned on, the controller controls the first light source 1 corresponding to the first camera to light up, and the light emitted by the first light source 1 is converged to the first cover body part 3 away from the first In a target area on one side of the light source 1, the target area is a first supplementary light area covering the viewing angle of the first camera;

In the case of detecting that the second camera is turned on, the first light source 1 and the second light source 2 corresponding to the second camera are controlled to light up at the same time, and the light emitted by the first light source 1 is condensed to the first cover 3 away from the first In the target area on one side of the light source 1, the light emitted by the second light source 2 is condensed to the peripheral area of the target area on the side of the second cover portion 4 away from the second light source 2, wherein the target area and the peripheral area jointly constitute A second supplementary light area covering the viewing angle of the second camera.

It should be noted that when it is detected that the first camera is turned on, the driving circuit of the lamp module controls the first light source 1 corresponding to the first camera to light up.

When detecting that the second camera is turned on, the driving circuit of the lamp module controls the first light source 1 and the second light source 2 corresponding to the second camera to light up at the same time.

Here, in conjunction with the lamp modules shown in Figures 1 to 2, when the first light source 1 is turned on, the light emitted by the first light source 1 passes through the first cover portion 3 and is used to form a lens covering the viewing angle of the first camera. The first fill light area.

When the second light source 2 is turned on, the light emitted by the second light source 2 passes through the second cover part 4 to form a circular aperture with a dark center, which is used to cover the angle outside the angle of view of the first camera and within the angle of view of the second camera. Fill light area.

When the first light source 1 and the second light source 2 are turned on at the same time for taking photos, a second light supplement area covering the entire viewing angle of the second camera will be formed.

Here, generally, the first camera is a camera with a regular angle of view; the second camera is a camera with a wide angle of view.

It should be noted that the terminal device of the embodiment of the present disclosure, due to the lamp module in the above embodiment, can selectively control the lighting of the first light source and the second light source, so as to selectively control cameras with different viewing angles. That is, the first camera and the second camera are used to supplement light when taking pictures. In this way, the light efficiency utilization rate can be improved and the power of the terminal can be saved.

Optionally, the terminal device further includes:

Circuit board

The lamp module, the first camera, the second camera, and the controller are all arranged on the circuit board.

In the terminal device provided by the embodiment of the present disclosure, the first light source in the lamp module, the second light source arranged around the first light source, the first cover body part arranged corresponding to the first light source, and the second light source arranged around the first cover body part Two cover body parts, the second cover body part is arranged corresponding to the second light source, wherein the first surface of the first cover body facing the first light source is an arc-shaped surface, and the arc-shaped surface is recessed from the first surface to the second surface The second surface and the first surface are the two opposite surfaces of the first cover body part; the first end of the second cover body part close to the first cover body part is away from the other side of the first cover body part In the direction of one end, the thickness of the second cover body is increased, so that the terminal device can selectively control the lighting of the first light source and the second light source, so as to selectively control cameras with different viewing angles, that is, the first camera and the second camera. , Fill light when taking pictures, in this way, can improve the utilization rate of light efficiency and save terminal power.

The above are only optional implementations of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present disclosure, several improvements and modifications can be made. These improvements and modifications The protection scope of this disclosure should also be considered.

Claims

A lamp module includes a light source and a lampshade,

The light source includes a first light source and a second light source, and the second light source is arranged around the first light source;

The lamp cover includes a first cover body portion and a second cover body portion, the second cover body portion is arranged around the first cover body portion, the first cover body portion is arranged corresponding to the first light source, the The second cover body is arranged corresponding to the second light source;

The first surface of the first cover body facing the first light source is an arc-shaped surface, and the arc-shaped surface is an arc-shaped surface that is recessed from the first surface to the second surface. The first surface is two opposite surfaces on the first cover body part;

The thickness of the second cover body portion is gradually increased from one end of the second cover body portion close to the first cover body portion toward the other end away from the first cover body portion.
The lamp module according to claim 1, wherein the third surface of the second cover body facing the second light source has a plurality of concentric serrations.
3. The lamp module according to claim 2, wherein each of the serrated parts protrudes away from the center of the circle toward the edge direction of the second cover body part.
The lamp module according to claim 1, wherein the refractive index of the second cover part is greater than the refractive index of air.
The lamp module according to claim 1, further comprising:

The driving circuits respectively connected with the first light source and the second light source are used to drive the first light source and/or the second light source to light up.
A terminal device, including:

The lamp module according to any one of claims 1 to 5;

The main body, the lamp module is fixed to the main body.
The terminal device according to claim 6, further comprising:

A first camera and a second camera, the viewing angle of the second camera is larger than the viewing angle of the first camera;

A controller, which is respectively connected to the light module, the first camera and the second camera;

Wherein, the controller is used for controlling the first light source to turn on the supplementary light during the shooting process of the first camera;

During the shooting process of the second camera, the first light source and the second light source are controlled to simultaneously light up the supplementary light.
The terminal device according to claim 7, further comprising:

Circuit board

The lamp module, the first camera, the second camera and the controller are all arranged on the circuit board.