Projection device

• US 20030137639A1
• Filed: 01/21/2003
• Published: 07/24/2003
• Est. Priority Date: 01/21/2002
• Status: Active Grant

• Current Assignee: Beauty Up Co., Ltd.
• Original Assignee: Beauty Up Co., Ltd.
• Inventors: Yang, Liang-Ta
• Granted Patent: US 6,866,388 B2
• Time in Patent Office: Days
• US Class Current: 353/30
• CPC Class Codes: H04N 9/3141 Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026

Abstract

A projection device is provide, including a projection module having at least an optical lens, the projection module receiving data and converting display data into an optical image to be projected on a display area by the optical lens. The projection device can be positioned substantially close to the display area. This allows the projection device to directly project the optical image on the display area without having to adjust a projection angle, and also makes the projected image free of obstruction from movement of a user. Therefore, data display and projection operation can be conveniently and efficiently implemented.

Claims

1. A projection device comprising a projection module having at least an optical lens, the projection module receiving and converting display data into an optical image to be projected on a display area by the optical lens.

2. The projection device of claim 1, further comprising a computer connected with the projection module, for processing and converting data into the display data.

3. The projection device of claim 1, wherein an optic axis of the optical lens is directed toward a same direction as the display area, and the projection module further comprises an optical reflector formed on the optic axis of the optical lens, for reflecting the optical image from the optical lens on the display area.

4. The projection device of claim 1, wherein the optical lens is directed toward the display area to project the optical image on the display area.

5. The projection device of claim 2, further comprising at least one communication interface for receiving the display data from the computer.

6. The projection device of claim 2, further comprising at least one communication interface connected to an external peripheral device, for downloading data to be displayed on the display area.

7. The projection device of claim 1, further comprising a data storage unit for storing data to be displayed on the display area.

8. The projection device of claim 2, wherein the computer is connected to a digitizing tablet by a connection interface.

9. The projection device of claim 3, further comprising a data storage unit for storing data to be displayed on the display area.

10. The projection device of claim 4, further comprising a data storage unit for storing data to be displayed on the display area.

11. A projection device, comprising:

a computer for processing and converting data into display data; and

a projection module having at least an optical lens and an optical reflector, the projection module being connected to the computer for converting the display data from the computer into an optical image, and for projecting the optical image on a display area via the optical lens.

12. The projection device of claim 11, wherein an optic axis of the optical lens is directed toward a same direction as the display area, and the optical reflector is formed on the optic axis of the optical lens, for reflecting the optical image from the optical lens on the display area.

13. The projection device of claim 11, further comprising at least one communication interface connected to an external peripheral device, for downloading data to be displayed on the display area.

14. The projection device of claim 11, further comprising a data storage unit for storing data to be displayed on the display area.

15. The projection device of claim 11, wherein the computer is connected to a digitizing tablet by a connection interface.

16. A projection device, comprising:

a computer for processing and converting data into display data; and

a projection module having at least an optical lens directed toward a display area, the projection module being connected to the computer for converting the display data from the computer into an optical image and for projecting the optical image on the display area via the optical lens.

17. The projection device of claim 16, further comprising at least one communication interface connected to an external peripheral device, for downloading data to be displayed on the display area.

18. The projection device of claim 16, further comprising a data storage unit for storing data to be projected on the display area.

19. The projection device of claim 16, wherein the computer is connected to a digitizing tablet by a connection interface.