TWI463241B - Portrable electronic device - Google Patents

Description

Portable electronic device

The invention relates to a portable electronic device.

With the continuous development of technology, portable electronic devices, such as mobile phones, are becoming more and more widely used, and at the same time, they are becoming more and more multifunctional. Among them, the projection function is an additional function of the popular mobile phone in recent years. However, portable electronic devices that have both a projection function and a 3D image have not been available yet.

In view of this, it is necessary to provide a portable electronic device that can both project and obtain 3D images.

A portable electronic device includes a casing, a projection unit and an image pickup unit, and the projection unit and the image pickup unit are disposed on the casing. The projection unit includes at least one laser source, a light combining prism, a scanning mirror and a control portion. The at least one laser source is opposite to the light combining prism for mixing at least one color laser emitted by the at least one laser source and forming a laser beam, and the scanning mirror is disposed at the light combining prism The exiting light path is used to reflect the laser beam at a high speed, and the laser beam is scanned line by line at a high speed on a region of the projection screen to form an image. The portable electronic device further includes a mode selection module, an image detector, a 3D image creation unit, and a control device. The mode selection module is used to select a projection mode or an image capture mode. The control device is electrically connected to the mode selection module and the control unit. When the mode selection module selects an image capturing mode, the image capturing unit takes an image of a subject, and at the same time, the control device sends a control signal to the control unit to make the control Controlling one of the at least one laser source to emit a laser. At the same time, the control unit controls the scanning mirror to strike the laser onto the subject taken by the image capturing unit. The image detector receives laser light reflected by the laser emitted by the laser source and reflected by the image taken by the image capturing unit. The 3D image creation unit includes a depth of field calculation module and a 3D image synthesis module. The depth of field calculation module is electrically connected to the image detector. The depth of field calculation module calculates the depth of field of the object according to the time when the laser source is reflected by the image capturing unit to the image detector. The 3D image synthesis module is electrically connected to the depth of field calculation module and the image capture unit. The 3D image synthesizing module synthesizes a 3D based on the image of the subject taken by the image capturing unit and the depth of field of the same subject taken by the image capturing unit calculated by the depth of field calculation module image.

Compared with the prior art, the portable electronic device further includes a mode selection module, an image detector, a 3D image creation unit, and a control device. The portable electronic device not only has a projection function. And when the mode selection module selects an image capturing mode, the image capturing unit takes an image of a subject, and the image detector receives the laser emitted by the laser source to hit the image. a laser that is reflected back on the subject taken by the ingesting unit, and the 3D image creating unit is reflected to the image detection after the laser source hits the object taken by the image capturing unit Calculating the depth of field of the subject, and synthesizing the image according to the image of the subject taken by the image capturing unit and the calculated depth of field of the same subject taken by the image capturing unit A 3D image.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3 , a portable electronic device 100 according to a preferred embodiment of the present invention includes a housing 10 , a projection unit 20 , an image capturing unit 30 , and an image detector 40 . (Photo detector), a 3D image creating unit 50, and an image display unit 60. The housing 10 is configured to house the projection unit 20, the image capturing unit 30, the image detector 40, the 3D image creating unit 50, and the image display unit 60. In this embodiment, the portable electronic device 100 is a mobile phone.

The casing 10 includes a front casing 11 and a casing 12 after being engaged with the front casing 11. The front housing 11 defines an opening 110 for receiving the image display unit 60. A plurality of buttons 13 are also disposed on the front housing 11. A first through hole 121 , a second through hole 122 adjacent to the first through hole 121 , and a third through hole 123 are defined in the rear case 12 .

In the embodiment, the projection unit 20 is a micro laser projector installed in the first through hole 121. The projection unit 20 includes a red laser source 21, a green laser source 22, a blue laser source 23, a light combining prism 24, a scanning mirror 25, a projection lens 26, a light source driving portion 27, and a scanning reflection. The mirror drive unit 28 and a control unit 29. The light source driving unit 27 is electrically connected to the red laser source 21, the green laser source 22, and the blue laser source 23. The red laser source 21, the green laser source 22, and the blue laser source 23 are all relatively positive with respect to the light combining prism 24. The light source driving unit 27 is configured to drive the red laser source 21, the green laser source 22, and the blue laser source 23 to emit red, green, and blue lasers, respectively. The light combining prism 24 is used to mix the red, green, and blue lasers emitted by the red laser source 21, the green laser source 22, and the blue laser source 23. The three laser beams are mixed by the light combining prism 24 to form a single laser beam, and the mixed laser beam is transmitted to the scanning mirror 25. The scanning mirror driving unit 28 is provided on the outgoing light path of the light combining prism 24 for driving the scanning mirror 25 to operate. The scanning mirror 25 is for reflecting the laser beam from the light combining prism 24 to the projection lens 26, and scanning the laser beam at a high speed on the area of the projection screen S to form an image. In the present embodiment, the scanning mirror 25 is a MEMS (Micro Electro Mechanical System) mirror.

The image capturing unit 30 is a digital camera that is mounted in the second through hole 122. The image capturing unit 30 is for taking a 2D image of a subject. The image taken by the image capturing unit 30 is transmitted to the 3D image creating unit 50. In this embodiment, the 3D image creating unit 50 is a digital signal processor (DSP).

The portable electronic device 100 further includes a mode selection module 35 and a control device 70. The mode selection module 35 is connected to the button 13 for selecting a projection mode or an image pickup mode according to a user input. The control device 70 is electrically connected to the mode selection module 35, the control unit 29, and the image capturing unit 30. When the mode selection module 35 selects the projection mode, the control device 70 sends a control signal to the control portion 29 to cause the control portion 29 to control the projection unit 20 to project in the manner described above. . When the mode selection module 35 selects the image pickup mode, the control device 70 sends a control signal to the image pickup unit 30 to cause the image pickup unit 30 to take an image of a subject. At the same time, the control device 70 sends a control signal to the control unit 29 to cause the control unit 29 to control the light source driving unit 27 to drive the red laser source 21, the green laser source 22, and the blue laser source 23. One of them emits a laser. At the same time, the control unit 29 controls the scanning mirror driving unit 28 to drive the scanning mirror 25 to strike laser light onto the subject taken by the image pickup unit 30. In the present embodiment, when the mode selection module 35 selects the image pickup mode, the control unit 29 controls the light source driving unit 27 to drive the red laser source 21 to be taken up by the image pickup unit 30. The camera emits a laser.

The third through hole 123 is configured to receive the image detector 40. The image detector 40 is configured to receive a laser of a specific wavelength. In the embodiment, when the portable electronic device 100 is in the shooting mode, the red laser source 21 emits laser light to the object taken by the image capturing unit 30, and the image detector 40 It is used to receive only the red laser reflected by the red laser emitted by the red laser source 21 and reflected by the image taken by the image capturing unit 30. It can be understood that when the portable electronic device 100 is in the shooting mode, when the green laser source 22 or the blue laser source 23 emits laser light to the same subject taken by the image capturing unit 30, The image detector 40 is correspondingly configured to receive only green laser or blue laser.

Referring to FIG. 4 , the 3D image creation unit 50 includes a depth of field calculation module 51 and a 3D image synthesis module 52 . The depth of field calculation module 51 is electrically connected to the image detector 40. The depth of field calculation module 51 calculates the depth of field of the object according to the time when the laser emitted by the red laser source 21 is reflected by the image capturing unit 30 to the image detector 40. . The 3D image synthesis module 52 is electrically connected to the depth of field calculation module 51 and the image capture unit 30. The 2D image synthesizing module 52 calculates the depth of field of the same subject taken by the image capturing unit 30 based on the 2D image of the subject taken by the image capturing unit 30 and the depth of field calculating module 51. , a 3D image is synthesized.

In the embodiment, the image display unit 60 is a 3D image display screen for displaying a 3D image created by the 3D image creating unit 50.

In addition, those skilled in the art can make other changes in the spirit of the present invention. Of course, these changes in accordance with the spirit of the present invention should be included in the scope of the present invention.

100. . . Portable electronic device

10. . . case

20. . . Projection unit

30. . . Image capture unit

40. . . Image detector

50. . . 3D image production unit

60. . . Image display unit

11. . . Front shell

12. . . Back shell

13. . . button

110. . . Opening

121. . . First through hole

122. . . Second through hole

123. . . Third through hole

twenty one. . . Red laser source

twenty two. . . Green laser source

twenty three. . . Blue laser source

twenty four. . . Light combining prism

25. . . Scanning mirror

26. . . Projection lens

27. . . Light source drive unit

28. . . Scanning mirror drive unit

29. . . Control department

S. . . Projection screen

35. . . Mode selection module

70. . . Control device

51. . . Depth of field calculation module

52. . . 3D image synthesis module

1 is a perspective view of a portable electronic device according to an embodiment of the present invention;

2 is another perspective view of the portable electronic device of FIG. 1;

3 is a schematic structural view of a projection unit of the portable electronic device of FIG. 2;

4 is a functional block diagram of a 3D image creation unit of the portable electronic device of FIG. 1.

100. . . Portable electronic device

10. . . case

50. . . 3D image production unit

60. . . Image display unit

11. . . Front shell

12. . . Back shell

13. . . button

110. . . Opening

Claims (8)

A portable electronic device includes a casing, a projection unit and an image pickup unit, wherein the projection unit and the image pickup unit are disposed on the casing, and the projection unit includes at least one a laser source, a light combining prism, a scanning mirror and a control unit, wherein the at least one laser source is opposite to the light combining prism, and is configured to mix and form at least one color laser emitted by the at least one laser source a laser beam, the scanning mirror is disposed on an outgoing light path of the light combining prism for reflecting the laser beam at a high speed, and scanning the laser beam line by line at a high speed on a region of the projection screen Forming an image, the improvement is that the portable electronic device further includes a mode selection module, an image detector, a 3D image creation unit, and a control device, wherein the mode selection module is configured to select In the projection mode or the image capturing mode, the control device is electrically connected to the mode selection module and the control unit, and when the mode selection module selects an image capturing mode, the image capturing unit Taking an image of a subject, and at the same time, the control device sends a control signal to the control unit, so that the control unit controls one of the at least one laser source to emit laser light, and at the same time, The control unit controls the scanning mirror to direct the laser to the object taken by the image capturing unit, and the image detector receives the laser emitted by the laser source and is taken by the image capturing unit The laser is reflected by the camera, the 3D image forming unit includes a depth of field calculation module and a 3D image synthesis module, and the depth of field calculation module is electrically connected to the image detector, the depth of field The calculation module calculates the depth of field of the object according to the time when the laser source is reflected by the image capturing unit to the image detector, and the 3D image synthesis module is electrically Connecting to the depth of field calculation module and the image capturing unit, the 3D image synthesis module calculates the image ingestion according to the image of the object taken by the image capturing unit and the depth of field calculation module Depth of field of the same subject taken by the unit, synthesized A 3D image. The portable electronic device of claim 1, wherein the casing comprises a front casing and a casing that is engaged with the front casing, and a first through hole is defined in the rear casing And a second through hole disposed adjacent to the first through hole, wherein the projection unit and the image pickup unit are respectively disposed in the first through hole and the second through hole. The portable electronic device of claim 2, wherein the portable electronic device further includes an image display unit, and the front case defines an opening for receiving the image. a display unit for displaying a 3D image produced by the 3D image creation unit. The portable electronic device of claim 1, wherein the scanning mirror is a MEMS mirror. The portable electronic device of claim 1, wherein the image capturing unit is a digital camera. The portable electronic device of claim 1, wherein the 3D image making unit is a digital signal processor. The portable electronic device of claim 1, wherein the at least one laser source comprises a red laser source, a green laser source, and a blue laser source, and the light combining mirror portion is used for mixing. The red laser source, the green laser source, and the blue laser source emit red, green, and blue lasers, and the three laser beams are mixed by the combined mirror portion to form a single laser beam, and the laser beam is mixed. The beam is transmitted to the scanning mirror. The portable electronic device of claim 2, wherein the rear case further defines a third through hole for receiving the image detector.