CN203289497U - Portable electronic device - Google Patents

Abstract

The utility model provides a portable electronic device, which comprises a body, a first lens module, a second lens module and an image processing unit. The body is provided with a flexible circuit board. The first lens module is configured on the flexible circuit board. The first lens module is provided with a first lens. The first lens is used for providing a first photosensitive signal. The second lens module is configured on the flexible circuit board. The second lens module is provided with a second lens. The second lens is used for providing a second photosensitive signal. The first lens and the second lens have different focal lengths. The image processing unit is used for receiving the first photosensitive signal and the second photosensitive signal and generating an image and a comparison image. The image processing unit generates three-dimensional depth data according to the image and the comparison image.

Description

portable electronic device

technical field

The utility model relates to a portable electronic device, in particular to a portable electronic device with two lenses.

Background technique

With the rapid development of technology, many consumer electronic products have gradually evolved from traditional two-dimensional (2Dimension, 2D) images to three-dimensional (3Dimension, 3D) images to meet consumers' higher visual sensory requirements. At present, electronic products with 3D image capabilities have emerged in the market, such as 3D TVs and 3D mobile phones, and it is foreseeable that electronic products with 3D image capabilities will be one of the trends in the future. Electronic products with 3D image capabilities must also be equipped with 3D image content. The 3D image content can be provided by an electronic device with 3D camera capability, such as a 3D digital camera.

Taking 3D digital cameras as an example, manufacturers often adopt the design of dual image acquisition modules to achieve the purpose of acquiring stereoscopic images. In detail, an image acquisition module includes an image sensing element and a lens group. In the prior art, manufacturers usually install two image acquisition modules on both sides of the camera body to simulate the left and right eyes of human beings, and then obtain a stereoscopic image similar to that observed by human eyes. However, the 3D digital camera usually adopts two lenses of the same level, and the lenses are, for example, of a higher-level specification above 5M. As a result, this design will inevitably increase the cost of the 3D digital camera so that the functions of the 3D digital camera can be made. Moreover, the above-mentioned design also makes the volume of this high-end lens relatively large, so if it is to be loaded with a mobile phone with a relatively small volume, it will cause difficulty in assembly.

On the other hand, taking an array camera as an example, manufacturers use R, G, B, and C lenses and match corresponding photosensitive elements (such as CMOS) to produce and achieve the function of an 8M camera module. As a result, this design also inevitably increases the material cost of the array camera, and its image quality is poor.

Utility model content

The utility model provides a portable electronic device, which can reduce the volume of the portable electronic device and save costs.

The portable electronic device of the utility model includes a body, a first lens module, a second lens module and an image processing unit. The body includes a flexible circuit board. The first lens module is configured on the flexible circuit board, and the first lens module has a first lens. The first lens is used for providing a first photosensitive signal. The second lens module is configured on the flexible circuit board, and the second lens module has a second lens. The second lens is used to provide a second photosensitive signal, wherein the first lens and the second lens have different focal lengths. The image processing unit is used for receiving the first light-sensing signal and the second light-sensing signal to generate an image and a comparison image. The image processing unit generates 3D depth data according to the image and the comparison image.

In an embodiment of the present invention, the above-mentioned second lens is used to provide a ranging signal. The image processing unit generates distance measurement data according to the distance measurement signal.

In an embodiment of the present invention, the above-mentioned first lens is a zoom lens.

In an embodiment of the present invention, the above-mentioned second lens is a fixed-focus lens.

In an embodiment of the present invention, the above-mentioned second lens has a VGA module sensor.

In an embodiment of the present invention, the above-mentioned body has a first surface and a second surface. The flexible circuit board is located on the first surface, and the first lens module and the second lens module are configured on the flexible circuit board.

In an embodiment of the present invention, the portable electronic device further includes a flashlight module, wherein the flashlight module is arranged between the first lens and the second lens to increase the The distance between the centers of a photosensitive area between the lens modules.

Based on the above, the portable electronic device provided by the present invention adopts two kinds of lenses with different specifications, and the lenses are placed on the same flexible circuit board to have the functions of distance measurement and 3D. Compared with the existing 3D camera, the first lens and the second lens of the present invention have different focal lengths and different specifications, so one of the two lenses can be used as VGA, 720P fixed focus and cheap lens to replace Both of them use high-resolution lenses and costly 3D cameras, so the storage space and production cost of the overall device can be saved.

In addition, since the first lens and the second lens are both configured on the same flexible circuit board, instead of disposing the first lens and the second lens on corresponding flexible circuit boards and then assembling them. This can not only avoid viewing angle tolerance caused by assembly, but also integrate the first lens and the second lens on the same module to save assembly cost.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with illustrations.

Description of drawings

FIG. 1 is a schematic diagram of a portable electronic device according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of the portable electronic device of FIG. 1;

3 is a schematic diagram of a portable electronic device according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of a simulation of the portable electronic device of FIG. 1;

5 is a flowchart of a method of manufacturing the portable electronic device of FIG. 1;

6 and 7 are schematic diagrams of a portable electronic device according to yet another embodiment of the present invention.

Explanation of reference signs:

50: subject;

100: portable electronic device;

110: body;

110a: first surface;

110b: second surface;

112: flexible circuit board;

120: the first lens module;

122: first shot;

122a: the first photosensitive signal;

120y: the first image sensor;

120z: the center of the photosensitive area of the first image sensor;

130: the second lens module;

132: second shot;

132a: the second photosensitive signal;

132b: ranging signal;

130y: a second image sensor;

130z: the center of the photosensitive area of the second image sensor;

140: image processing unit;

150: flashlight module;

160: object to be sensed;

S1: image;

S2: compare images;

S3: 3D depth data;

S4: ranging data;

S510-S550: steps.

Detailed ways

FIG. 1 is a schematic diagram of a portable electronic device according to an embodiment of the present invention. FIG. 2 is a schematic block diagram of the portable electronic device of FIG. 1 . FIG. 3 is a schematic diagram of a portable electronic device according to another embodiment of the present invention. Referring to FIGS. 1 to 3 , in this embodiment, the portable electronic device 100 is, for example, a mobile phone and includes a body 110 , a first lens module 120 , a second lens module 130 and an image processing unit 140 . The body 110 has a flexible circuit board 112 . It should be noted that only a part of the machine body 110 is shown here for ease of description.

The first lens module 120 has a first lens 122 . The first lens 122 is used for providing a first photosensitive signal 122a. The second lens module 130 has a second lens 132 . The second lens 132 is used to provide a second photosensitive signal 132a, wherein the first lens 122 and the second lens 132 have different focal lengths. The first lens 122 and the second lens 132 are, for example, standard lenses, wide-angle lenses, zoom lenses, etc. In this embodiment, the first lens 122 is a high-resolution zoom lens, such as 3.2M, 5M, 8M or above the lens. The second lens adopts a low-resolution fixed-focus lens, which has, for example, a VGA module sensor. In other embodiments, the second lens may also be a 720P lens. Of course, in other embodiments, the first lens may also be a low-resolution fixed-focus lens, and the second lens may be a high-resolution zoom lens, and the present invention is not limited thereto.

In this embodiment, the first lens 122 and the second lens 132 are configured on the flexible circuit board 112 . The image processing unit 140 is configured to receive the first light-sensing signal 122a and the second light-sensing signal 132a and thereby generate an image S1 and a comparison image S2. The image processing unit 140 generates a 3D depth data S3 according to the image S1 and the comparison image S2. Of course, the image processing unit 140 may also include related components such as a 3D depth generator, which will not be repeated here. In addition, the second lens 130 is used to provide a ranging signal 132b. The image processing unit 140 generates a distance measurement data S4 according to the distance measurement signal 132b, so that the portable electronic device 100 has a distance measurement function. It should be noted that the above-mentioned image processing unit 140 also includes a photosensitive element, such as a charge coupled device (Charge Coupled Device, CCD), a complementary metal oxide semiconductor (Complementary Metal-Oxide Semiconductor, CMOS) element or other elements, here No limit.

Under this configuration, the portable electronic device 100 provided in this embodiment adopts two lenses of different specifications (the first lens 122 and the second lens 132 shown in FIG. 1 ), and they are placed side by side on the On the same flexible circuit board 112, it has functions of ranging and 3D. Compared with existing 3D cameras, the first lens 120 and the second lens 130 of this implementation have different focal lengths and different specifications, so one of them can be used as a VGA, 720P fixed-focus and cheap lens in the two lenses. Instead of two 3D cameras with high-resolution lenses and high cost, the volume of the overall device can be reduced and the production cost can be saved. In addition, since the first lens 122 and the second lens 132 are both configured on the same flexible circuit board 112, instead of disposing the first lens 122 and the second lens 132 on the corresponding flexible circuit board 112, and then Assemble it. This can not only avoid viewing angle tolerance caused by assembly, but also integrate the first lens 122 and the second lens 132 on the same module to save assembly cost.

In detail, the body 110 has a first surface 110 a and a second surface 110 b, the flexible circuit board 112 is located on the first surface 110 a, and the first lens module 120 and the second lens module 130 are disposed on the flexible circuit board 112 . In addition, this embodiment does not limit the distance between the first lens module 120 and the second lens module 130. As shown in FIG. The size of the distance can be adjusted according to the requirement of the actual product, for example, the flashlight module is disposed between the first lens module 120 and the second lens module 130 . However, the present invention is not limited thereto. As shown in FIG. 3 , the first lens module 120 and the second lens module 130 are closely adjacent to each other.

FIG. 4 is a schematic diagram of a simulation of the portable electronic device of FIG. 1 . In this embodiment, the image processing unit 140 can generate the 3D depth data S3 of the image through the technology of stereo matching (Stereo Matching), and thereby achieve the effect of instant focus and shallow depth of field, that is, the image processing unit 140 performs the first The images received by the first lens 122 and the second lens 132 are analyzed and processed, thereby generating an image with a shallow depth of field. For example, as shown in FIG. 4 , some objects (such as a big tree) of the subject 50 are blurred, while the characters of the subject 50 are relatively clear.

The manufacturing process of how to place the first lens module 120 and the second lens module 130 on the same flexible circuit board 112 will be introduced below.

FIG. 5 is a flowchart of a manufacturing method of the portable electronic device shown in FIG. 1 . Please refer to Figure 5. First, go to step 510 , providing a flexible circuit board 112 . Next, proceed to step 520, adhering the first lens 122 and the second lens 132 on the same flexible circuit board 112 by surface mount technology (Surface Mounting Technology, SMT). In this embodiment, the first lens 122 is a high-resolution zoom lens, such as a 3.2M, 5M, 8M or above lens. The second lens adopts a low-resolution fixed-focus lens, which has a VGA module sensor, for example.

Afterwards, step 530 is performed to perform optical-assisted alignment, and align the higher-resolution second lens 132 with the lower-resolution first lens 122 , and the error must be controlled within 2%. Then, proceed to step 540 , using optical glue (UV glue) to attach the photosensitive element to the first lens 122 and the second lens 132 to form the first lens module 120 and the second lens module 130 . Moreover, the optical auxiliary alignment is performed again to ensure that the alignment between the first lens module 120 and the second lens module 130 needs to be controlled within an error of 2%. Finally, proceed to step 550 , using UV light to cure the optical glue, and the general manufacturing process of the portable electronic device 100 is completed.

6 and 7 are schematic diagrams of a portable electronic device according to yet another embodiment of the present invention, wherein FIG. 7 is a schematic top view of FIG. 6 . 6 and 7, the portable electronic device 100 is, for example, a mobile phone and includes a body 110, a first lens module 120, a second lens module 130, a flash module 150 and a first image sensor of the first lens module 120. The center 120z of the photosensitive area of the first image sensor 120y and the center 130z of the photosensitive area of the second image sensor 130y of the second lens module 130 and an image processing unit. The body 110 has a flexible circuit board 112 . It should be noted that the image processing unit is not shown here for ease of description.

In detail, the body 110 has a first surface 110a and a second surface 110b, the flexible circuit board 112 is located on the first surface 110a, and the first lens module 120, the second lens module 130 and the flash module 150 are disposed on the flexible circuit board 112.

It should be explained in detail that the resolution of the depth data obtained by using the first lens module 120 and the second lens module 130 is proportional to the distance between the center of the photosensitive area 120z of the first image sensor of the first lens module 120 and the second lens module 130. The distance between the center of the photosensitive area of the second image sensor 130z, so when the distance between the center of the photosensitive area of the first image sensor 120z and the center of the photosensitive area of the second image sensor 130z is greater, the resolution of the acquired depth data can be finer , and can reduce the distance detection error of the first lens module 120 and the second lens module 130 to an object 160 to be sensed. In addition, the resolution of the depth data is inversely proportional to the viewing angle of the second camera module 130 , so when the viewing angle of the second camera module 130 is smaller, the resolution of the obtained depth data is higher. Therefore, the electronic device with a flashlight module 150 disposed between the first lens module 120 and the second lens module 130 with different specifications can be applied to light and thin electronic devices such as smartphones and tablet computers with camera functions. The product can greatly reduce the volume of the overall device without increasing the overall use area, reduce the cost of production and adjustment, and can improve the effect of the image sensor of the electronic device on the resolution of the stereoscopic image.

To sum up, the portable electronic device provided by the present invention adopts two types of lenses with different specifications, and places them on the same flexible circuit board to achieve distance measurement and 3D functions. Compared with the existing 3D camera, the first lens and the second lens in this implementation have different focal lengths and different specifications, so one of the two lenses can be VGA, 720P fixed-focus and cheap lens to replace the 2 All of them are 3D cameras with high-resolution lenses, so the production cost can be saved.

In addition, since the first lens and the second lens are both configured on the same flexible circuit board, instead of disposing the first lens and the second lens on corresponding flexible circuit boards and then assembling them. This can not only avoid viewing angle tolerance caused by assembly, but also integrate the first lens and the second lens on the same module to save assembly cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (7)

1. a portable electron device, is characterized in that, comprising:

One body, comprise a flexible PCB;

One first mirror head module, be disposed on this flexible PCB, and this first mirror head module has one first camera lens, and this first camera lens is in order to provide one first photoreceptor signal;

One second camera lens module, be disposed on this flexible PCB, and this second camera lens module has one second camera lens, and this second camera lens is in order to provide one second photoreceptor signal, and wherein this first camera lens and this second camera lens have different focal; And

One graphics processing unit, in order to receive this first photoreceptor signal and this second photoreceptor signal and to produce thus an image, a comparison chart picture;

Wherein, this graphics processing unit produces a range data according to this image and this comparison chart picture.

2. portable electron device according to claim 1, is characterized in that, this second camera lens is in order to a distance measuring signal to be provided, and this graphics processing unit produces a ranging data according to this distance measuring signal.

3. portable electron device according to claim 1, is characterized in that, this first camera lens is a zoom lens.

4. portable electron device according to claim 1, is characterized in that, this second camera lens is a tight shot.

5. portable electron device according to claim 1, is characterized in that, this second camera lens has a Video Graphics Array VGA module sensors.

6. portable electron device according to claim 1, it is characterized in that, this body has a first surface and a second surface, and this flexible PCB is positioned on this first surface, and this first mirror head module and this second camera lens module are configured on this flexible PCB.

7. portable electron device according to claim 1, also comprise a flash modules, it is characterized in that, this flash modules is to be configured between this first camera lens and this second camera lens, in order to increase the photosensitive area center distance between this first mirror head module and this second camera lens module.

Images