DISPLAY AND DESIGN METHOD THEREOF

• US 20090168030A1
• Filed: 05/29/2008
• Published: 07/02/2009
• Est. Priority Date: 01/02/2008
• Status: Abandoned Application

• Current Assignee: Young Optics, Inc.
• Original Assignee: Young Optics, Inc.
• Inventors: LAI, Ching-Lung, CHOU, Tung-Hua, CHEN, Jung-Yao
• Application Number:
  US12/128,656
• Publication Number:
  US 20090168030A1
• Time in Patent Office: Days
• US Class Current: 353/99
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066

Abstract

A display is provided including a light source, a light valve, a projection lens, a first planer reflector, a second planer reflector, a curved reflector and a projection plane. The light source is capable of emitting a light beam. The light valve is disposed on a light path of the light beam to transform the light beam into an image light beam. The projection lens is disposed on a light path of the image light beam. The first planer reflector reflects the image light beam from the projection lens. The second planer reflector reflects the image light beam from the first planer reflector. The curved reflector reflects the image light beam from the second planer reflector. The image light beam from the curved reflector is projected on the projection plane to form a projection image.

Claims

1. A display, comprising:

a light source, capable of emitting a light beam;

a light valve, disposed on a light path of the light beam to transform the light beam into an image light beam;

a projection lens, disposed on a light path of the image light beam;

a first planer reflector, disposed on the light path of the image light beam to reflect the image light beam from the projection lens;

a second planer reflector, disposed on the light path of the image light beam to reflect the image light beam from the first planer reflector;

a curved reflector, disposed on the light path of the image light beam to reflect the image light beam from the second planer reflector; and

a projection plane, wherein the image light beam from the curved reflector is projected on the projection plane to form a projection image.

2. The display as claimed in claim 1, wherein the curved reflector has a negative refractive power.

3. The display as claimed in claim 1, wherein the projection lens comprises a telecentric lens.

4. The display as claimed in claim 1, wherein the projection lens is capable of generating a pincushion distortion, and the curved reflector is capable of generating a barrel distortion.

5. The display as claimed in claim 1, wherein the projection lens comprises a first lens unit, a second lens unit and a third planer reflector, the third planer reflector is disposed between the first lens unit and the second lens unit, the image light beam passes through the first lens unit to the third planer reflector, the third planer reflector reflects the image light beam from the first lens toward the second lens unit, and the image light beam passes through the second lens unit to the first planer reflector.

6. The display as claimed in claim 5, wherein a rotation of the first planer reflector relates to a rotation of the second planer reflector.

7. The display as claimed in claim 5, wherein the first lens unit and the second lens unit comprise a telecentric lens.

8. The display as claimed in claim 5, wherein the first lens unit and the second lens unit are capable of generating a pincushion distortion, and the curved reflector is capable of generating a barrel distortion.

9. The display as claimed in claim 1, wherein the curved reflector comprises an aspherical reflector.

10. A display design method, comprising:

providing a display, and the display comprising a light source, a light valve, a projection lens, a first planer reflector, a second planer reflector, a curved reflector and a projection plane, wherein the light source is capable of emitting a light beam, the light beam is transmitted to the light valve to be transformed into an image light beam, and the image light beam passes the projection lens, the first planer reflector, the second planer reflector and the curved reflector in sequence so as to be projected to the projection plane; and

rotating the first planer reflector and the second planer reflector to modify a thickness of the display.

11. The display design method as claimed in claim 10, wherein the image light beam travels from the light valve parallel to a first axis and passes through the projection lens.

12. The display design method as claimed in claim 11, wherein the step of rotating the first planer reflector and the second planer reflector comprises rotating the first planer reflector along a second axis and a third axis, and the first axis, the second axis and the third axis are perpendicular to each other.

13. The display design method as claimed in claim 12, wherein the step of rotating the first planer reflector and the second planer reflector further comprises rotating the second planer reflector along the first axis and the third axis.

14. The display design method as claimed in claim 13, wherein a size of the display on the second axis and the third axis is capable of being modified by rotating the first planer reflector.

15. The display design method as claimed in claim 13, wherein a size of the display on the second axis and the third axis is capable of being modified by rotating the second planer reflector.

16. A display design method, comprising:

providing a display, and the display comprising a light source, a light valve, a projection lens, a first planer reflector, a second planer reflector, a curved reflector and a projection plane, wherein the projection lens comprises a first lens unit, a second lens unit and a third planer reflector disposed between the first and second lens units, the light source is capable of emitting a light beam, the light beam is transmitted to the light valve to be transformed into an image light beam, and the image light beam passes the first lens unit, the third planer reflector, the second lens unit, the first planer reflector, the second planer reflector and the curved reflector in sequence so as to be projected to the projection plane; and

rotating the first planer reflector, the second planer reflector and the third planer reflector to modify a thickness of the display.

17. The display design method as claimed in claim 16, wherein the image light beam travels from the light valve parallel to a first axis and passes through the first lens unit.

18. The display design method as claimed in claim 17, wherein the step of rotating the first planer reflector, the second planer reflector and the third planer reflector comprises rotating the third planer reflector along a third axis, and the first axis and the third axis are perpendicular to each other.

19. The display design method as claimed in claim 18, wherein the step of rotating the first planer reflector, the second planer reflector and the third planer reflector further comprises rotating the second planer reflector along the first axis.

20. The display design method as claimed in claim 19, wherein the step of rotating the first planer reflector, the second planer reflector and the third planer reflector further comprises rotating the first planer reflector along the first axis.

21. The display design method as claimed in claim 20, wherein the second planer reflector rotates in a first rotation angle with respect to a base plane, the first planer reflector rotates in a second rotation angle with respect the base plane, a sum of an absolute value of the first rotation angle and an absolute value of the second rotation angle is 90 degrees, the first axis and a second axis are on the base plane, and the first, second and third axes are perpendicular to each other.

22. The display design method as claimed in claim 20, wherein a size of the display on the second axis is capable of being modified by rotating the third planer reflector.

23. The display design method as claimed in claim 20, wherein a size of the display on the second axis and the third axis is capable of being modified by rotating the second planer reflector.

24. The display design method as claimed in claim 20, wherein a size of the display on the second axis and the third axis is capable of being modified by rotating the first planer reflector.