Portable electronic device having built-in projector

• US 20070273848A1
• Filed: 08/14/2006
• Published: 11/29/2007
• Est. Priority Date: 05/29/2006
• Status: Abandoned Application

• Current Assignee: Kinoptics Technologies, Inc.
• Original Assignee: Kinoptics Technologies, Inc.
• Inventors: Fan, Bin, Shao, Jianxin
• Application Number:
  US11/503,669
• Publication Number:
  US 20070273848A1
• Time in Patent Office: Days
• US Class Current: 353/119
• CPC Class Codes: G03B 21/005 Projectors using an electronic spatial light modulator but not peculiar thereto
• CPC Class Codes: G03B 29/00 Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects combinations with flash apparatus G03B15/03
• CPC Class Codes: H04N 13/211 using temporal multiplexing
• CPC Class Codes: H04N 13/337 using polarisation multiplexing
• CPC Class Codes: H04N 13/346 using prisms or semi-transparent mirrors
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/363 using image projection screens volumetric display H04N13/388
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 2213/002 Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices
• CPC Class Codes: H04N 9/3173 wherein the projection device is specially adapted for enhanced portability

Abstract

A portable data processing apparatus includes a storage storing code associated with a computer program that generates at least one of (a) stereoscopic image data and (b) image data associated with images having two groups of primary colors. A keyboard allows a user to input data used by the computer program or entering commands to control execution of the computer program. A built-in digital projector integrated within the portable data processing apparatus projects onto an external display screen at least one of (a) stereoscopic images and (b) images having two groups of primary colors, the built-in digital projector being integrated within the portable data processing apparatus. A microprocessor executes the code and controls the built-in digital projector to project images based on the image data generated by the computer program.

Claims

1. A portable digital image capturing apparatus comprising:

an image sensor to generate image signals;

a focusing lens to focus light onto the image sensor;

a digital projector integrated within the portable digital image capturing apparatus to project images onto an external display screen; and

a digital signal processor to process the image signals from the image sensor to generate image data that can be stored in a storage, and also to control the built-in digital projector to project images associated with the image data.

2. The digital image capturing apparatus of claim 1 wherein the built-in digital projector comprises:

a light source to generate a light beam,

a first light modulator to modulate at least a portion of the light beam, the first light modulator comprising a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range, and

projection optics for projecting images on the external display screen.

3. The digital image capturing apparatus of claim 2 wherein the light source comprises a light emitting diode.

4. The digital image capturing apparatus of claim 2 wherein the light source comprises multilevel binary optics elements.

5. The digital image capturing apparatus of claim 2 wherein the binary optics elements comprise a fly'"'"'s eye integrator comprising a first array of lens fabricated on a first side of a substrate and a second array of lens fabricated on a second side of the substrate.

6. The digital image capturing apparatus of claim 2 wherein the digital projector comprises a second light modulator to modulate a portion of the light beam, the second light modulator having a liquid crystal layer and an array of dichroic filters.

7. The digital image capturing apparatus of claim 6 wherein each of the first and second light modulators comprises pixels, each pixel of the first light modulator being associated with dichroic filters that pass a first set of primary colors, and each pixel of the second light modulator being associated with dichroic filters that pass a second set of primary colors.

8. The digital image capturing apparatus of claim 6 wherein the digital signal processor processes the image signals from the image sensor to generate stereoscopic image data and controls the digital projector to project stereoscopic images based on the stereoscopic image data.

9. A portable data processing apparatus comprising:

a storage for storing code associated with a computer program that generates image data;

a keyboard for inputting data used by the computer program or entering commands to control execution of the computer program;

a built-in digital projector integrated within the portable processing apparatus to project images onto an external display screen, the built-in digital projector comprising

a light source to generate a light beam, and

a first light modulator to modulate at least a portion of the light beam, the light modulator comprising a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range, and

projection optics for projecting images on the external display screen; and

a microprocessor to execute the code and control the built-in digital projector to project images based on the image data generated by the computer program.

10. The portable data processing apparatus of claim 9 wherein the built-in digital projector comprises a second light modulator that modulates a portion of the light beam, the second light modulator having a liquid crystal layer and an array of dichroic filters.

11. The portable data processing apparatus of claim 10 wherein the code is associated with a computer program that generates stereoscopic image data, and the microprocessor executes the code and controls the digital projector to project a stereoscopic image based on the stereoscopic image data.

12. The portable data processing apparatus of claim 10 wherein each of the first and second light modulator comprises pixels, each pixel of the first light modulator being associated with dichroic filters that pass a first set of primary colors, and each pixel of the second light modulator being associated with dichroic filters that pass a second set of primary colors.

13. The portable data processing apparatus of claim 9 wherein the light source comprises at least one light emitting diode.

14. The portable data processing apparatus of claim 9 wherein the light source comprises multilevel binary optics elements.

15. The portable data processing apparatus of claim 9 wherein the portable data processing apparatus comprises at least one of a personal digital assistant, a notebook computer, a mobile phone, a video player, an audio player, and a game console.

16. The portable data processing apparatus of claim 9 wherein the computer program comprises at least one of an operating system and a video game program.

17. A portable data processing apparatus comprising:

a storage storing code associated with a computer program that generates at least one of (a) stereoscopic image data and (b) image data associated with images having two groups of primary colors;

a keyboard for inputting data used by the computer program or entering commands to control execution of the computer program;

a built-in digital projector integrated within the portable data processing apparatus to project onto an external display screen at least one of (a) stereoscopic images and (b) images having two groups of primary colors, the built-in digital projector being integrated within the portable data processing apparatus; and

a microprocessor to execute the code and control the built-in digital projector to project images based on the image data generated by the computer program.

18. The portable data processing apparatus of claim 17 wherein the built-in digital projector comprises:

a light source to generate a light beam,

a first light modulator to modulate a portion of the light beam, the light modulator comprising a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range,

a second light modulator that modulates a portion of the light beam, and

projection optics for projecting images on the external display screen.

19. An apparatus comprising:

a light generating device to generate light;

a fly'"'"'s eye integrator comprising multilevel binary optics elements fabricated on one or more substrates to receive light from the light generating device and provide a light beam having a substantially uniform brightness;

a beam splitter to receive the light beam from the fly'"'"'s eye integrator and to provide a first sub-beam and a second sub-beam;

a first light modulator to modulate the first sub-beam to generate a first modulated sub-beam; and

a second light modulator to modulate the second sub-beam to generate a second modulated sub-beam, wherein the first and second modulated sub-beams are combined to generate an image.

20. The apparatus of claim 19 wherein the fly'"'"'s eye integrator comprises a first array of lenses and a second array of lenses, the first array of lenses being fabricated on a first side of a substrate, the second array of lenses being fabricated on a second side of the substrate, and each lens in the first and second array of lenses comprises a multilevel binary optics element.

21. An apparatus comprising:

a light generating device to generate light; and

one or more substrates each having multilevel binary optics elements fabricated thereon, the one or more substrates processing light from the light generating device to provide a spatially uniform illumination, at least one surface of the one or more substrates having an array of lens, each lens comprising a multilevel binary optics element.

22. The apparatus of claim 21 wherein the multilevel binary optics elements perform a function equivalent to a fly'"'"'s eye integrator.

23. A method of operating a portable digital image capturing device, the method comprising:

sensing light passing through a focusing lens of the portable digital image capturing device to generate an image signal;

generating image data based on the image signal;

storing the image data in a storage of the portable digital image capturing device; and

projecting, using a built-in projector integrated within the portable digital image capturing device, images onto an external display screen, the images being associated with the image data.

24. The method of claim 23 wherein projecting images using the built-in projector comprises:

generating a light beam,

modulating at least a portion of the light beam using a first light modulator, the first light modulator comprising a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range, and

projecting light modulated by the first light modulator through projection optics.

25. The method of claim 24 wherein projecting images using the built-in projector comprises modulating at least a portion of the light beam using a second light modulator, the second light modulator comprising a liquid crystal layer and an array of dichroic filters.

26. The method of claim 25, further comprising generating a first image having a first set of primary colors from light modulated by the first light modulator and generating a second image having a second set of primary colors from light modulated by the second light modulator.

27. The method of claim 25, further comprising generating a first image from light modulated by the first light modulator, generating a second image from light modulated by the second light modulator, and combining the first and second images into a stereoscopic image that is projected through the projection optics onto the external display screen.

28. A method of operating a portable data processing apparatus, the method comprising:

executing, using a data processor of the portable data processing apparatus, code associated with a computer program to generate image data;

generating a light beam using a built-in light source of the portable data processing apparatus;

modulating at least a portion of the light beam by using a first built-in light modulator of the portable data processing apparatus based on the image data, the first built-in light modulator having a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range;

projecting, using built-in projection optics of the portable data processing apparatus, images based on light modulated by the first built-in light modulator onto an external display screen; and

inputting data or commands through a keyboard of the portable data processing apparatus, the data for use by the computer program, the commands for controlling execution of the computer program to control the images projected onto the external display screen.

29. The method of claim 28, further comprising modulating a portion of the light beam using a second built-in light modulator of the portable data processing apparatus, the second light modulator comprising a liquid crystal layer and an array of dichroic filters.

30. The method of claim 29 wherein the computer program generates stereoscopic image data, and projecting images comprises projecting stereoscopic images based on the stereoscopic image data.

31. The method of claim 29, further comprises generating a first image having a first set of primary colors from light modulated by the first built-in light modulator, generating a second image having a second set of primary colors from light modulated by the second built-in light modulator, and combining the first and second images into a combined image that is projected onto the external display screen.

33. The method of claim 29 wherein modulating at least a portion of the light beam by using a first built-in light modulator comprises directing the portion of the light beam towards a liquid crystal layer and an array of dichroic filters, each dichroic filter passing portions of the light beam having wavelengths within a specified range and reflecting portions of the light beam having wavelengths outside of the specified range.

32. A method of operating a portable data processing apparatus, the method comprising:

executing code associated with a computer program to generate at least one of (a) stereoscopic image data and (b) image data associated with images having two groups of primary colors;

generating a light beam using a built-in light source of the portable data processing apparatus;

modulating at least a portion of the light beam by using a first built-in light modulator and a second built-in light modulator based on the image data, the first and second built-in light modulators being integrated within the portable data processing apparatus;

projecting, using built-in projection optics of the portable data processing apparatus, light modulated by the first and second built-in light modulators to project at least one of (a) stereoscopic images and (b) images having two groups of primary colors onto an external display screen; and

inputting, using a keyboard of the portable data processing apparatus, data for use by the computer program or commands for controlling execution of the computer program.

34. A method comprising:

passing light through a fly'"'"'s eye integrator, the fly'"'"'s eye integrator comprising multilevel binary optics elements fabricated on one or more substrates to provide a light beam having a substantially uniform brightness;

separating the light beam from the fly'"'"'s eye integrator into a first sub-beam and a second sub-beam;

modulating the first sub-beam using a first light modulator to generate a first modulated beam;

modulating the second sub-beam using a second light modulator to generate a second modulated beam; and

combining the first modulated beam and the second modulated beam to generate a combined beam representing an image.

35. The method of claim 34 wherein passing light through a fly'"'"'s eye integrator comprises passing light through a first array of multilevel binary optics elements that are fabricated on a first side of a substrate, and passing light through a second array of multilevel binary optics element that are fabricated on a second side of the substrate.

36. A method comprising:

generating light using a light source;

passing the light through one or more substrates each having multilevel binary optics elements fabricated thereon, at least one surface of the one or more substrates having an array of lens, each lens comprising a multilevel binary optics element; and

processing the light, using the multilevel binary optics elements, to provide a spatially uniform illumination.

37. The method of claim 36 wherein processing the light comprises spreading and integrating the light to generate the spatially uniform illumination.