CN100502418C - Portable electronic device with digital camera - Google Patents

Abstract

The invention relates to a portable electronic device with a digital camera, comprising a body, a cover, a focusing device and an image sensor, the body and the cover can rotate around an axis, and the focusing device is coaxially installed on the body The common axis with the cover body is composed of a mirror base and a mirror frame for installing the lens group, and the mirror base and the mirror frame are threaded; the mirror base and the image sensor are fixed in the cover body or the body Either; the frame is axially slidably mounted in the other.

Description

Portable electronic device with digital camera

technical field

The present invention relates to a portable electronic device, in particular to a portable electronic device with a digital camera.

Background technique

Digital cameras use digital processing technology to convert the captured optical signals into electrical signals for storage, and can exchange data information such as pictures with computers. They can browse photos without film or printing, and are increasingly popular among consumers. of favor.

A digital camera module mainly includes a lens group, an image sensor, and related circuits and mechanical devices. The image sensor (Sensor) is connected to the relevant circuit in the mobile phone to convert the collected optical signal into an electrical signal. Common image sensors are CCD (Charge Coupled Device, charge coupled device) and CMOS (Complementary Metal-Oxide Semiconductor) , Complementary Metal Oxide Semiconductor).

With the development of technology, various portable electronic devices with digital camera modules embedded in them appear on the market, such as mobile phones, MP3 players, etc., and many functions are integrated into one, so that consumers can take pictures at any time when they go out. In order to increase the viewfinder range, portable electronic devices that can take pictures with focusing function have appeared on the market, that is, when the focal length of the lens group is fixed, the shooting target can be brought into focus by changing the distance between the lens group and the image sensor Within the preset object distance range of the device, the object distance can be changed by changing the image distance. Most current digital camera focusing devices are automatic focusing devices, as shown in Figure 1. The automatic focusing device includes a mirror frame 50 accommodating the lens group 70 and a support base 60, and utilizes the relevant mechanical structure to connect the image sensor 44 and the induction sensor above it. The coil 43 and the surrounding magnetic element 45 are packaged and placed directly under the lens group 70 . The image sensor 44 is energized to generate a magnetic force against the magnetic element 45, thereby pushing the magnetic element 45 to drive the image sensor 44 to move axially relative to the lens group, thereby changing the image distance of the shooting target. For related technologies, please refer to Chinese Patent No. ZL02234511.6. Since auto-focus requires more electric power and related mechanical structure to drive, the structure is more complex, which is not conducive to the development of miniaturization of portable electronic devices.

Contents of the invention

The technical problem to be solved by the present invention is to provide a portable electronic device with a digital camera, which can manually focus on the shooting target without adding relevant buttons, and has a simple structure and is easy to operate.

In order to solve the above technical problems, the present invention provides a portable electronic device with a digital camera, including a body, a cover, a focus device and an image sensor, the body and the cover can rotate around an axis, the focus device It is coaxially installed on the common axis of the body and the cover, and consists of a mirror base and a mirror frame for installing the lens group. The mirror base and the mirror frame are threaded; the mirror base and the image sensor are fixed Either one of the cover or the body; the frame can be axially slidably installed in the other.

Compared with the prior art, since the focusing device of the portable electronic device of the present invention is coaxially installed on the common rotating shaft of the body and the cover, focusing can be carried out during the process of unscrewing the portable electronic device, thereby saving power , The purpose of simplifying the structure, but also saves the relevant focus operation buttons.

Description of drawings

Fig. 1 is an autofocus device in the prior art.

Fig. 2 is an expanded view of the focusing device of the present invention.

Fig. 3 is a sectional view of a swing-off mobile phone with a digital camera according to the present invention.

Fig. 4 is a perspective view of a swing-off mobile phone with a digital camera according to the present invention.

Detailed ways

The digital camera module can be embedded in various portable electronic devices, so that the portable electronic devices have functions such as digital photography and focusing. In this embodiment, a mobile phone is taken as an example to illustrate:

Please refer to FIG. 2 , the focusing device 1 includes a lens frame 12 , a lens base 14 and a lens barrel 16 . Wherein the mirror frame 12 is cylindrical, and is used to install the lens group (not shown in the figure), and its upper end outer surface is provided with sliders 122 on both sides, and the lower end outer surface is provided with external threads 124; the mirror holder 14 is a stepped cylinder , the inner surface of which is provided with an internal thread 142; the inside of the lens barrel 16 is provided with a sliding groove 162. The mirror frame 12 is sleeved in the lens barrel 16, and the slider 122 on it is placed in the chute 162 of the lens barrel 16 and can slide along the chute. Screw together. The mirror frame 12, the mirror base 14 and the mirror barrel 16 are coaxially assembled together.

Referring to FIG. 3 again, the mobile phone 2 includes a body 22 and a cover 24 , and the body 22 can rotate around an axis a relative to the cover 24 . A hole 222 and a slot 242 are respectively defined on the body 22 and the cover 24 along their co-axis a, and the hole 222 and the slot 242 jointly accommodate the focusing device 1 . The mirror base 14 is fixed in the groove 242 of the cover body 24, the image sensor 3 is fixed on the relevant circuit board in the cover body 24 facing the mirror base 14; the lens barrel 16 is fixed in the hole 222 of the body 22, and the mirror frame 12 is set In the lens barrel 16 , the slider 122 on it is placed in the slide groove 162 in the lens barrel 16 .

Please refer to FIG. 4 together. After the mobile phone cover 24 is unscrewed (that is, rotated 180 degrees), the keypad 26 is exposed. For axial sliding, the mirror frame 12 and the mirror base 14 are screwed together, so when the body 22 or the cover 24 is manually rotated, the mirror frame 12 and the mirror base 14 will rotate relative to each other, causing the mirror frame 12 to slide on the lens barrel 16 through the slider 122 sliding in the chute 162 of the mirror frame 162 to make an axial linear movement, so that the distance between the lens group installed in the mirror frame 12 and the image sensor 3 changes, that is, the image distance of the shooting target changes. Under the condition that the focal length remains unchanged, the object distance of the shooting target can be within the preset object distance range of the focusing device 1, and a clear image can be obtained.

Similarly, the mirror base 14 and the image sensor 3 can also be fixed in the body 22, and the mirror frame 12 can be axially slidably installed in the cover body 24, and the relative rotation of the body 22 and the cover body 24 can still Implement the focus function.

Claims (7)

1. portable electron device with digital camera, comprise a body, a lid, a focusing mechanism and an image sensor, this body and lid can be around rotational, it is characterized in that: described focusing mechanism is co-axially mounted on body and the common axis place of lid, being made up of a microscope base and a mirror holder that lens set is installed, is threaded engagement between this microscope base and the mirror holder; Described microscope base and image sensor are fixed in lid or the body any; Mirror holder can be installed in another axially slidably.

2. according to the described portable electron device with digital camera of claim 1, it is characterized in that: described microscope base and image sensor are fixed in lid; Mirror holder can be installed in the body axially slidably.

3. according to the described portable electron device with digital camera of claim 2, it is characterized in that: the inner surface of described microscope base offers internal thread, and the outer surface of described mirror holder offers external screw thread.

4. according to the described portable electron device with digital camera of claim 3, it is characterized in that: described focusing mechanism also comprises a lens barrel, and this lens barrel is installed in the body, and its inner surface offers chute; Offer slide block on the described mirror holder, this mirror holder is sleeved in the lens barrel, and its slide block places the chute of lens barrel slidably.

5. according to the described portable electron device of claim 2, it is characterized in that: on the described lid display screen is installed, utilizes this display screen to find a view when taking pictures with digital camera.

6. according to the described portable electron device with digital camera of claim 1, it is characterized in that: described microscope base and image sensor are fixed in the body; Mirror holder can be installed in the lid axially slidably.

7. according to the described portable electron device with digital camera of claim 1, it is characterized in that: described portable electron device is a mobile phone.

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