Projection Ring

• US 20150341606A1
• Filed: 04/21/2015
• Published: 11/26/2015
• Est. Priority Date: 04/28/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Xu, Qiushi, Chen, Yanshun, Li, Yaohui
• Granted Patent: US 9,477,146 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A44C 9/0053 having special functions
• CPC Class Codes: G03B 17/04 collapsible, foldable or extensible, e.g. book type
• CPC Class Codes: G03B 21/30 adapted to collapse or fold, e.g. for portability
• CPC Class Codes: G06F 2203/0331 Finger worn pointing device
• CPC Class Codes: G06F 3/00 Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
• CPC Class Codes: G06F 3/014 Hand-worn input/output arrangements, e.g. data gloves
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: H04N 9/00 Details of colour television systems
• CPC Class Codes: H04N 9/3173 wherein the projection device is specially adapted for enhanced portability

Abstract

Disclosed is a projection ring, including an annular body; a telescopic portion disposed on the annular body; and a projector disposed on the telescopic portion. The location of the projector on the projection ring is easily adjustable, thus it'"'"'s convenient to adjust the size of the picture as projected or the projection angle.

Claims

1. A projection ring, comprising:

an annular body;

a telescopic portion disposed on the annular body; and

a projector disposed on the telescopic portion.

2. The projection ring of claim 1, wherein a telescopic direction of the telescopic portion is a central axial direction of the annular body.

3. The projection ring of claim 1, wherein the projector is rotatably connected to the telescopic portion.

4. The projection ring of claim 1, wherein the telescopic portion is rotatably connected to the annular body.

5. The projection ring of claim 1, wherein the telescopic portion comprises a telescopic arm and a telescopic head, and the projector is disposed on the telescopic head which is hinged to the telescopic arm.

6. The projection ring of claim 1, wherein the telescopic portion comprises a plurality of thimbles which are movably nested one on top of another, wherein a first thimble is fixedly disposed on the annular body and a last thimble is provided with the projector thereon.

7. The projection ring of claim 1, wherein the telescopic portion comprises a roller, a roller box, and a strip-shaped supporting belt.

8. The projection ring of claim 7, wherein

the roller is disposed within the roller box;

the roller box is provided with an opening thereon, and the supporting belt has one end fixedly connected to the roller and the other end provided with the projector thereon;

in condition that the telescopic portion is in a draw-back state, the supporting belt is bent to wrap around the roller;

in condition that the telescopic portion is in a stretch-out state, the end of the supporting belt that is provided with the projector is penetrating through the opening of the roller box to allow the supporting belt extending as a straight bar.

9. The projection ring of claim 1, further comprising:

a laser generator disposed on the annular body; and

a laser sensor disposed on the annular body or on the telescopic portion.

10. The projection ring of claim 9, wherein the laser generator is an infrared ray generator, and the laser sensor is an infrared ray sensor.

11. The projection ring of claim 9, further comprising a signal processing device disposed on the annular body or on the telescopic portion, and the signal processing device is electrically connected to the laser sensor.

12. The projection ring of claim 1, further comprising a wireless module electrically connected to the projector.

13. The projection ring of claim 2, wherein the projector is rotatably connected to the telescopic portion.

14. The projection ring of claim 2, wherein the telescopic portion is rotatably connected to the annular body.

15. The projection ring of claim 3, wherein the telescopic portion is rotatably connected to the annular body.