PROJECTION DEVICE

• US 20160188123A1
• Filed: 12/10/2015
• Published: 06/30/2016
• Est. Priority Date: 12/25/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: FUJIUNE, Kenji
• Granted Patent: US 10,122,976 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G03B 17/54 with projector
• CPC Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: G06F 3/005 Input arrangements through a video camera
• CPC Class Codes: H04N 9/3114 by using a sequential colour filter producing one colour at a time
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026
• CPC Class Codes: H04N 9/3158 for controlling the spectrum
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

A projection device includes: a detection unit configured to detect a specific object; a projection unit configured to project a first projection image; a drive unit configured to change a direction of the projection unit so as to change the projection position of the first projection image; a controller configured to control the drive unit such that the first projection image is projected while following the motion of the detected specific object; and a communication unit configured to receive information of a second projection image projected by another projection device. The controller acquires information relating to a position of the second projection image through the communication unit, and controls a projection method of the first projection image based on the positions of the first projection image and the second projection image such that the first projection image and the second projection image are not overlapped with each other when they are projected.

Claims

1. A projection device projecting an image, comprising:

a detection unit configured to detect a specific object;

a projection unit configured to project a first projection image;

a drive unit configured to change a direction of the projection unit so as to change a projection position of the first projection image;

a controller configured to control the drive unit such that the first projection image is projected while following the motion of the specific object detected by the detection unit; and

a communication unit configured to receive information of a second projection image projected by another projection device,

wherein the controller acquires information relating to a position of the second projection image through the communication unit, and controls a projection method of the first projection image based on the positions of the first projection image and the second projection image such that the first projection image and the second projection image are not overlapped with each other when they are projected.

2. The projection device according to claim 1, wherein

the controller controls the drive unit such that, when a distance between the first projection image and the second projection image becomes smaller than a predetermined distance, the first projection image detours around the second projection image.

3. The projection device according to claim 2, wherein

the controller allows the first projection image to perform a detour operation when the moving speed of the projection position of the first projection image is higher than the moving speed of the projection position of the second projection image.

4. The projection device according to claim 1, wherein

the controller controls the drive unit with respect to the first projection image based on a trajectory in a direction in which the first projection image and the second projection image become farther away from each other, as a distance between the first projection image and the second projection image decreases.

5. The projection device according to claim 1, wherein

the controller generates an image formed by erasing an overlapped part where the first projection image and the second projection image are overlapped with each other from the first projection image, and allows the projection unit to project the generated image.

6. The projection device according to claim 1, wherein

when there is an obstacle interfering with projection light of the first projection image on a trajectory of the first projection image following the motion of the specific object, the controller changes a size of the first projection image to prevent an image from being projected onto the obstacle.