TWM499577U - Handheld electronic device having camera module having vibration compensation function - Google Patents

Description

Handheld electronic device with camera module with vibration compensation function

The present invention relates to a handheld electronic device with a camera module, and more particularly to a handheld electronic device with a camera module with vibration compensation function.

With the advancement of digital technology and the development of the electronics industry, Image Stabilization Technology is not only applied to digital cameras, but also rapidly popularized in other digital devices, such as digital cameras, mobile phones with camera functions, etc. In view of the expansion of the field of digital camera devices, in addition to the performance of autofocus and multi-magnification zoom, the need for image vibration compensation (ie, image stabilization technology) is increasingly apparent. When a photographer is holding a digital camera or a camera with a camera function, if the operation is unstable or the object to be photographed is a moving object, the image blurring problem often occurs. The reason for this phenomenon is that when the light source is converted into digital electronic signal imaging by the CCD/CMOS image sensor of the digital camera, photoelectric conversion requires a certain process, in the process, if the camera vibrates or photographs the object When the movement causes abnormal light displacement, the captured image will be very blurred, and most users of the camera device will shoot in a handheld manner, which will inevitably cause the picture to shake due to the user's unstable grip. The image vibration compensation function of the digital camera device (ie, image stabilization technology) is an important key.

The image stabilization technology of today's digital camera devices is basically divided into two types: optical anti-shake technology and electronic anti-shake technology. In 1994, Nikon introduced the first digital camera with Vibration Reduction technology. In 1995, Canon of Japan introduced the world's first digital camera with an Image Stabilizer lens.

Representative manufacturers of optical anti-shake technology include: Canon, Nikon, and Panasonic. The optical anti-shake technology detects the minute movement by using the gyroscope set in the camera lens, and transmits the movement signal to the microprocessor, and immediately calculates the displacement amount of the required compensation, and passes through the image stabilizer lens group. The vibration direction and displacement of the lens are compensated to overcome the blurring of the image caused by camera shake. In order to compensate for the vibration of the camera body by the movement of the image stabilizer lens group, the image quality of the image is better, but the compensation displacement calculated by the image stabilizer of the optical anti-shake technology is still limited to a certain degree. The vibration of the shutter time in the range is limited, and an image stabilizer lens set must be additionally disposed in the lens, which will increase the cost of the digital camera and increase the volume of the lens.

The representative of the electronic anti-shake technology is: Olympus' Anti-Vibration Program, which reduces the shooting by adjusting the shutter speed and ISO sensitivity according to the actual shooting conditions. The impact of camera shake on the camera. In addition, the best shooting selector (Best-Shot Selector, BSS) used in Nikon digital cameras is also one of the electronic anti-shake techniques. The Best Shot Selector (BSS) is a software that compensates for images. The function of blurring, that is, when the function is activated, the digital camera can continuously take about 10 photos, and pick a photo with the highest sharpness (ie, the best detail shot). The main principle is to use a clear photo capacity. Larger and sharper, relatively, the photo capacity of the vibration is smaller and the sharpness is poor. Compared with the optical anti-shake technology, the anti-shock program or the best shooting selector can relatively reduce the cost of the digital camera, but the electronic anti-shake technology is not as effective as the optical anti-shock technology. It is easy to produce image noise and reduce the image quality. It also needs to support the image sensor with a large effective area. In addition, it only needs to select a photo with higher overall sharpness among several photos taken continuously, instead of The image correction is comprehensively performed, so that the vibration compensation effect is also limited.

In summary, the optical anti-shake technology utilizes a gyroscope in the lens group to drive a corresponding special lens, adjusts the position and angle of the lens due to vibration, and performs image compensation; and electronic anti-shake technology The vibration is compensated by using a larger effective area image sensor, adjusting the shutter speed and ISO sensitivity. However, the optical anti-shake technology requires an optical compensation lens set to increase the cost of the digital camera and increase the volume of the lens. The electronic anti-shake technology does not need to be optically compensated for the lens device, but is in the light. In a shooting environment where conditions are not good enough, adjusting the shutter speed and ISO sensitivity causes the image quality to deteriorate.

The main purpose of the present invention is to solve the following problems: the digital camera device of the conventional optical anti-shock technology, the compensation displacement is still limited to the vibration of the shutter time within a certain range, and the compensation effect is limited, and the image stabilizer lens group The installation results in increased cost and volume. In addition, digital camera devices using electronic anti-shake technology are prone to image noise and degrade image quality, and must also support image sensors with a large effective area.

In order to achieve the above object, the present invention provides a handheld electronic device with a vibration compensation function camera module, which is suitable for a shutter time operation in a shaking state, the handheld electronic device includes a body and an image capturing device. a processing unit, the body has a first plane and a second plane opposite to the first plane, the first plane has a display screen, and the image capturing device is located at the second plane; the image capturing device The invention comprises a lens module orthogonal to an optical axis and a detection module, wherein the lens module captures a plurality of images that are off the optical axis due to the shaking state during the shutter time, and the images are separated from each other by a sub-image The detection time of the shutter module, the detection module has an accelerometer and a magnetometer, the accelerometer outputs a plurality of movement offset signals for the image to deviate from the optical axis during the shutter time, and the magnetometer outputs a plurality of The image is offset from the optical axis by the angular offset signal during the shutter time, and the processing unit is electrically connected to the image capturing device, and the processing unit receives Mobile offset signal and the angular deviation signal and the synthesized image, a clear image of a complete turn of the correction already presented to the display screen.

Accordingly, the present invention obtains a plurality of images deviating from the optical axis during the shutter time in the shaking state, and receives the movement offset signals from the accelerometer and the magnetometer respectively through the processing unit. After the signal is offset from the angle, the image is corrected and a complete and clear image is synthesized on the display screen, without adjusting the shutter speed and ISO sensitivity, and there is no need to separately set the gyro in the lens module. The instrument drives the corresponding image stabilizer lens group to compensate for image shaking, so that a clear picture can still be taken in the shaking state.

The detailed description and technical content of this new model are described below with the following diagram:

Please refer to the "FIG. 1", "FIG. 2", "FIG. 3", "FIG. 4" and "FIG. 5A" to "FIG. 5D", respectively, which are schematic front view and appearance of the present embodiment. A schematic diagram, a schematic diagram of a system block, a schematic diagram of a three-dimensional structure of a lens module, and a schematic diagram of image correction. As shown in the figure, the present invention is a handheld electronic device with a vibration compensation function camera module, which can be applied to correct a blurred image caused by a photographer holding the handheld electronic device to shake during a shutter time. The handheld electronic device includes: a body (1), an image capturing device (11), and a processing unit (13) electrically connected to the image capturing device (11), the body (1) having a first A plane (S1) and a second plane (S2) opposite the first plane (S1), the first plane (S1) having a display screen (10). The image capturing device (11) is located on the second plane (S2) of the body (1), and the image capturing device (11) has a lens module (110) orthogonal to an optical axis and a Detector The test module (111) includes an accelerometer (1110) and a magnetometer (1111).

Further, the lens module (110) includes a lens holder (1100), a lens (1101), a filter (1102), and an image sensor (1103), the lens (1101), the filter ( 1102) and the image sensor (1103) is sequentially arranged along the optical axis on the lens holder (1100), the lens (1101) can be a plastic lens or an aspherical glass lens, the image sensor ( 1103) Here, it can be a CCD image sensor or a CMOS image sensor. In addition, in this embodiment, the handheld electronic device may further include a flash module (12) located on the second plane (S2), and the flash module (12) and the image capturing device (11) Electrically connected, the flash module (12) is supplemented with LEDs or other illuminants, that is, when the natural light conditions are insufficient, the illumination is increased for the subject to achieve a better photographing effect.

In operation, if the photographer holds the handheld electronic device and causes the camera to be shaken, the light source will deviate from the optical axis when entering the lens module (110), and the lens module (110) is tied to the shutter. A plurality of images that deviate from the optical axis due to the shaking state are captured during the time, and the images are separated from each other by a sub-shutter time. At the same time, the accelerometer (1110) and the magnetometer (1111) respectively output a plurality of shifting signals and angles offset from the optical axis during the shutter time of the shutter time. a mobile signal, thereby defining a shaking state caused by the photographer holding the handheld electronic device unstable, and transmitting the mobile offset signal and the angular offset signal to the processing unit (13) for immediate Receiving the movement offset signal and the angle offset signal, thereby correcting the image, and presenting a corrected clear image to the display screen (10).

In the present invention, the lens module (110) preferably captures between 3 and 10 images deviating from the optical axis during the shutter time, and each of the images deviating from the optical axis respectively has a plurality of clear images. Information and a number of fuzzy image information. Continuing with the embodiment of FIG. 5A to FIG. 5D, the lens module (110) continuously captures three images deviating from the optical axis during the shutter time, and each of the images is a first image (please Refer to the figure "5A"), a second image (see Figure 5B), and a third image (see Figure 5C), and each of the images includes a first subject (21), a first a second subject (22) and a third subject (23), wherein in the first image, the first subject (21) is a blurred image, and the second subject (22) is The blurred image and the third subject (23) are clear images; in the second image, the first subject (21) is a blurred image, the second subject (22) is a clear image, and the first The third subject (23) is a blurred image; in the third image, the first subject (21) is a clear image, the second subject (22) is a blurred image, and the third subject ( 23) Blur image.

The processing unit (13) after the accelerometer (1110) and the magnetometer (1111) respectively output the shift offset signal corresponding to the first image, the second image, and the third image and the angle offset signal Obtaining the clear image information and the blurred image information respectively formed by the first image, the second image, and the third image by using the moving offset signal and the angle offset signal, and then capturing the blurred image information The first subject (21), the clear second subject (22), and the clear third subject (23) are clearly defined in each of the images, and are combined to form a complete and clear image (please refer to The picture "5D") is reappeared on the display screen (10) to compensate for the effect of the image being shaken by the photographer due to the unstable grip.

In summary, the present invention uses the image capturing device (11) and the processing unit (13) to correct a blurred image caused by the photographer's holding the handheld electronic device to be unstable, and the principle of operation is utilized. The lens module (110) captures a plurality of images that are off the optical axis due to a shaking state during a shutter time, and outputs a plurality of images about the image via the accelerometer (1110) and the magnetometer (1111). Deviating from the movement offset signal and the angle offset signal of the optical axis, the processing unit (13) performs correction and synthesis on the image, and forms a complete and clear image to be presented on the display screen (10), which is achieved in a shaking state. Still have to take a clear photo effect.

Accordingly, the present invention is different from the image vibration compensation technology of today's digital camera devices, and overcomes the shock of the optical anti-shock technique that the compensation displacement is still limited to a certain range of shutter time, and an image stabilizer lens is required. The cost of the digital camera is increased and the volume of the lens is increased. The vibration compensation effect of the electronic anti-shake technology is not good, and the image noise is easily generated to reduce the image quality.

The present invention has been described in detail above, but the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited. That is, the equal changes and modifications made in accordance with the scope of this new application shall remain within the scope of the patent of this new type.

1‧‧‧ Ontology
10‧‧‧ display screen
11‧‧‧Image capture device
110‧‧‧Lens module
1100‧‧ ‧ mirror base
1101‧‧‧Lens
1102‧‧‧ filter
1103‧‧‧Image Sensor
111‧‧‧Detection module
1110‧‧‧Accelerometer
1111‧‧‧ magnetometer
12‧‧‧Flash module
13‧‧‧Processing unit
21‧‧‧The first subject
22‧‧‧second subject
23‧‧‧ Third subject
S1‧‧‧ first plane
S2‧‧‧ second plane

Figure 1 is a front elevational view showing the appearance of an embodiment of the present invention. Figure 2 is a rear elevational view of the appearance of an embodiment of the present invention. 3 is a block diagram of a system of an embodiment of the present invention. 4 is a perspective view of a lens module according to an embodiment of the present invention. FIG. 5A is a schematic diagram of a first image of an embodiment of the present invention. FIG. FIG. 5B is a schematic diagram of a second image of an embodiment of the present invention. FIG. FIG. 5C is a schematic diagram of a third image of an embodiment of the present invention. FIG. 5D is a schematic view of a complete and clear image of one embodiment of the present invention.

10‧‧‧ display screen

110‧‧‧Lens module

111‧‧‧Detection module

1110‧‧‧Accelerometer

1111‧‧‧ magnetometer

13‧‧‧Processing unit

Claims (6)

A handheld electronic device with a vibration compensation function, suitable for a shutter time operation in a shaking state, comprising: a body having a first plane and a first surface opposite to the first plane a second plane having a display screen; an image capturing device on the second plane, the image capturing device comprising a lens module orthogonal to an optical axis and a detecting module, the lens The module captures a plurality of images that deviate from the optical axis due to the shaking state during the shutter time, and the images are separated from each other by a sub-shutter time. The detecting module has an accelerometer and a magnetometer, and the accelerometer outputs a plurality of shifting signals for the image to deviate from the optical axis during the shutter time, and the magnetometer outputs a plurality of angular offset signals for the image to deviate from the optical axis during the shutter time; and a processing unit, The processing unit is electrically connected to the image capturing device, and the processing unit combines the moving offset signal and the angle offset signal to synthesize the image. A corrected image will appear in the display screen. The hand-held electronic device of the camera module with vibration compensation function according to claim 1, wherein the body comprises a flash module located on the second plane, and the flash module and the image capturing device are electrically Sexual connection. The handheld electronic device of the camera module with vibration compensation function according to claim 1, wherein the lens module comprises a lens holder, a lens, a filter and an image sensor, the lens, The filter and the image sensor are sequentially arranged on the lens holder along the optical axis. The hand-held electronic device of the camera module with vibration compensation function according to claim 3, wherein the lens is a plastic lens or an aspherical glass lens. The handheld electronic device of the camera module with vibration compensation function according to claim 3, wherein the image sensor is a CCD image sensor or a CMOS image sensor. The handheld electronic device of the camera module with vibration compensation function as claimed in claim 1, wherein the image has a plurality of clear image information and a plurality of blurred image information.