IMAGE PROJECTION APPARATUS AND METHOD FOR CONTROLLING THE SAME

• US 20120249501A1
• Filed: 06/15/2012
• Published: 10/04/2012
• Est. Priority Date: 07/07/2009
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yonishi, Osamu
• Granted Patent: US 8,851,685 B2
• Time in Patent Office: Days
• US Class Current: 345/204
• CPC Class Codes: G03B 21/53 Means for automatic focusing, e.g. to compensate thermal effects
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: H04N 9/317 Convergence or focusing systems electronic adjustment of convergence H04N9/3185; convergence or focusing arrangements for cathode ray tubes H04N9/28; means for automatic focusing of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/53
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

There is provided an image projection apparatus comprising: a measuring unit that measures a distance from the image projection apparatus to a projection surface; a generating unit that generates a first operation image if the measured distance is less than a threshold value and generates a second operation image if the measured distance is not less than the threshold value, wherein the first operation image is an image with respect to which an operation can be input by pointing on the first operation image that is being projected with a body part of a user, and the second operation image is an image with respect to which an operation can be input by operating a cursor displayed in the second operation image that is being projected using a predetermined operating unit; and a projecting unit that projects an operation image generated by the generating unit onto the projection surface.

Claims

1. An image display apparatus comprising:

an image display unit that displays a GUI image on a display surface; and

a control unit that controls the image display unit, in response to predetermined signal, to display a first GUI image or a second GUI image.

2. The image display apparatus according to claim 1,

wherein the first GUI image is a GUI for finger operation.

3. The image display apparatus according to claim 1,

wherein the second GUI image is a GUI for a button operation.

4. The image display apparatus according to claim 1,

wherein the predetermined signal is a focus adjustment operation signal.

5. The image display apparatus according to claim 1,

wherein the predetermined signal is a detection signal which indicates movement of the image display apparatus.

6. The image display apparatus according to claim 1,

wherein the predetermined signal is an activation signal.

7. The image display apparatus according to claim 1, further comprising

a communication unit.

8. The image display apparatus according to claim 1, further comprising

a detection unit that detects an operation object.

9. The image display apparatus according to claim 8,

wherein the detection unit detects the operation object based on an image taken by a camera unit.

10. The image display apparatus according to claim 1, further comprising

a measurement unit that measures a distance between the display surface and the image display apparatus.

11. The image display apparatus according to claim 1, further comprising:

a camera unit; and

a measurement unit;

wherein the image display unit, the camera unit, and the measurement unit are located in the same plane of the image display apparatus.

12. The image display apparatus according to claim 8,

wherein the control unit controls the image display apparatus based on the detection result of the detection unit.

13. The image display apparatus according to claim 12,

wherein when the first GUI image is displayed by the image display unit, the control unit controls the image display apparatus based on the detection result of the detection unit.

14. The image display apparatus according to claim 12,

wherein when the second GUI image is displayed by the image display unit, the control unit does not control the image display apparatus based on the detection result of the detection unit.

15. The image display apparatus according to claim 12,

wherein the control unit controls the image display apparatus based on a button operation.

16. The image display apparatus according to claim 15,

wherein when the first GUI image is displayed by the image display unit, the control unit does not control the image display apparatus based on a button operation.

17. The image display apparatus according to claim 15,

wherein when the second GUI image is displayed by the image display unit, the control unit controls the image display apparatus based on a button operation.

18. A method for controlling an image display apparatus, comprising:

an image display step of displaying a GUI image on a display surface; and

a control step of controlling the image display step, in response to predetermined signal, to display a first GUI image or a second GUI image.