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1. WO2006096962 - OVERHEAD PROJECTION SYSTEM

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[ EN ]

What is claimed is:

1. An overhead proj ection system comprising:
a generally horizontal projector assembly;
a display screen having a display surface disposed beneath said overhead projector assembly, said overhead projector assembly comprising a projector aimed to project images onto the display surface of said display screen; and at least one tether acting between said overhead projector assembly and at least one structural element above said projector assembly.

12. An overhead projection system according to claim 1 wherein said projector assembly is pivotable relative to a generally vertical support surface on which said display screen is mounted.

3. An overhead projection system according to claim 2 wherein said projector assembly is pivotally mounted on a bracket secured to said support surface.

4. An overhead projection system according to claim 3 wherein said display screen is also mounted on said bracket below said projector assembly.

5. An overhead projection system according to claim 4 wherein said projector assembly comprises at least one elongate member having one end pivotally coupled to said bracket and a distal end adjacent which said projector is mounted.

6. An overhead projection system according to claim 5 wherein said projector assembly comprises a pair of elongate members arranged generally to form an A-frame structure, said projector being mounted adjacent the distal ends of said elongate members.

7. An overhead projection system according to claim 6 wherein at least one of said elongate members is tubular.

8. An overhead projection system according to claim 7 wherein the tubular elongate member accommodates cabling running to said projector.

9. An overhead projection system according to claim 8 wherein the length of said tether is adjustable.

10. An overhead projection system according to claim 1 wherein the length of said tether is adjustable.

11. An overhead proj ection system according to claim 10 further comprising a level indicator on said projector assembly.

12. A proj ector assembly comprising:
a frame structure adapted to extend outwardly from a generally vertical support surface and to support a projector at a location spaced from said support surface;
a bracket to which said frame is pivotally coupled, said bracket being adapted to be secured to said support surface; and
at least one tether connected at one end to said frame and having an opposite end adapted to be secured to an overhead structural element to orient said frame structure.

13. A projector assembly according to claim 12 wherein said frame structure includes a pair of tubular members generally forming an A-frame structure.

14. A projector assembly according to claim 12 wherein distal ends of said tubular members are connected, said frame structure further including support structure for said projector adjacent said distal ends.

15. A projector assembly according to claim 12 wherein the length of said tether is adjustable.

16. A projector assembly according to claim 15 further comprising a level indicator on said frame structure.

17. A projector assembly according to claim 15 further comprising a display screen mounted on said bracket below said frame structure.