Device and method for adjusting object illumination

1. A method for adjusting illumination for capturing an image of an object using a mobile device having a display device and one or more slits separate from a screen of the display device being defined in a housing of the mobile device, the method comprising:

detecting, by the mobile device, ambient illumination of the object and generating illumination data indicating the ambient illumination of the object; and

adjusting, by the mobile device, a sustained luminance of the mobile device by adjusting illumination emitted from the one or more slits, in response to the illumination data, wherein a waveguide diffuses light from a light source and the diffused light is emitted as illumination from the one or more slits.

2. The method of claim 1 wherein detecting the ambient illumination of the object comprises detecting incident light information from an ambient light photosensor of the mobile device.

3. The method of claim 1 wherein detecting the ambient illumination of the object comprises detecting proximity information associated with the object from a proximity sensor, the method further comprising adjusting the luminance of the mobile device by adjusting the illumination emitted from the one or more slits in dependence on the detected proximity information.

4. The method of claim 1 wherein detecting the ambient illumination of the object comprises detecting an illuminance or a color temperature of incident light.

5. The method of claim 1 further comprising providing messages on the display device, based on the illumination data, directing movement of the object into the illumination emitted by the one or more slits.

6. The method of claim 1 wherein adjusting the luminance of the mobile device comprises adjusting any one of an intensity and a tint of the illumination emitted from the one or more slits.

7. The method of claim 1 wherein the illumination emitted from the one or more slits is channeled to the one or more slits from a backlight of the display device via the waveguide.

8. The method of claim 1 wherein the mobile device comprises an image capture device and the display device and image capture device are each mounted in a common face of the mobile device and the method includes the image capture device capturing the image of the object after the luminance of the mobile device is adjusted.

9. A mobile device comprising:

a display device having a screen;

a housing defining one or more slits separate from the screen;

a waveguide diffuses light from a light source and the diffused light is emitted as illumination from the one or more slits; and

a processor configured to:

detect ambient illumination of an object whose image is to be captured by the mobile device and generate illumination data indicating the ambient illumination of the object; and

adjust a sustained luminance of the mobile device by adjusting illumination emitted from the one or more slits, in response to the illumination data.

10. The mobile device of claim 9 comprising an ambient light photosensor, wherein the illumination data is based on incident light information detected from the ambient light photosensor.

11. The mobile device of claim 9 comprising a proximity sensor, wherein the illumination data is based on proximity information associated with the object detected by the proximity sensor, and wherein the processor is configured to adjust the luminance of the mobile device by adjusting the illumination emitted by the one or more slits in dependence on the proximity information.

12. The mobile device of claim 9 wherein the processor is configured to display a message on the screen based on the illumination data, wherein the message contains an instruction for movement of the object into the illumination emitted by the one or more slits.

13. The mobile device of claim 9 wherein the processor is configured to adjust the luminance of the mobile device by adjusting any one of an intensity and a tint of the illumination emitted by the one or more slits.

14. The mobile device of claim 9 , wherein the waveguide is further configured to channel light from a backlight for backlighting the display device to the one or more apertures.

15. The mobile device of claim 9 comprising an image capture device, wherein the display device and image capture device are each mounted in a common face of the mobile device and the processor is configured to capture the image of the object using the image capture device after the luminance of the mobile device has been adjusted.

16. The method of claim 1 wherein at least one of the one or more slits is positioned directly adjacent the screen.

17. The method of claim 1 wherein the luminance of the mobile device is continually adjusted while a real-time image of the object is displayed on the screen.

18. The method of claim 1 wherein at least one of the one or more slits is positioned spaced apart from and along an edge of the screen.

19. The mobile device of claim 9 at least one of the one or more slits is positioned directly adjacent the screen.

20. The mobile device of claim 9 wherein the processor is further configured to continually adjust the luminance of the mobile device while a real-time image of the object is displayed on the screen.

21. The mobile device of claim 9 wherein at least one of the one or more slits is positioned spaced apart from and along an edge of the screen.