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A projection device is provided, wherein the projection device includes a casing, a plurality of electronic components mounted within the casing, a vent in the casing disposed substantially adjacent to an electronic component, and an injection molded, electrically nonconductive vent screen having on

A projection device is provided, wherein the projection device includes a casing, a plurality of electronic components mounted within the casing, a vent in the casing disposed substantially adjacent to an electronic component, and an injection molded, electrically nonconductive vent screen having one or more mesh portions substantially bordered by a peripheral frame, wherein the vent screen is detachably coupled within the casing and secured against the vent.

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What is claimed is: 1. A projection device, comprising: a casing; a plurality of electronic components mounted within the casing; a vent in the casing disposed substantially adjacent to an electronic component; and an injection molded, electrically nonconductive vent screen having one or more mesh

What is claimed is: 1. A projection device, comprising: a casing; a plurality of electronic components mounted within the casing; a vent in the casing disposed substantially adjacent to an electronic component; and an injection molded, electrically nonconductive vent screen having one or more mesh portions substantially bordered by a peripheral frame; wherein the vent screen is detachably coupled within the casing and secured against the vent. 2. The projection device of claim 1, wherein the electronic component is a power source. 3. The projection device of claim 1, wherein the vent screen includes an integrally formed retention device. 4. The projection device of claim 3, wherein the retention device is adapted to align the vent screen relative to the casing. 5. The projection device of claim 4, wherein the casing includes a retention feature adapted to engage the retention device of the vent screen. 6. The projection device of claim 5, wherein the retention device includes a flange and the retention feature includes a groove configured to accept the flange. 7. The projection device of claim 5, wherein the retention device and the retention feature form a dovetail joint. 8. The projection device of claim 4, wherein the retention device includes a tab and the retention feature includes a latch. 9. The projection device of claim 3, wherein the casing includes a retention feature adapted to engage the retention device of the vent screen. 10. The projection device of claim 3, wherein the retention device is disposed on the peripheral frame. 11. The projection device of claim 1, wherein at least a part of the frame is not visible from the exterior of the projection device when the vent screen is secured against the vent, and wherein at least a part of the mesh portions are visible from the exterior of the projection device when the vent screen is secured against the vent. 12. The projection device of claim 11, wherein the frame is substantially obscured from view from the exterior of the projection device when the vent screen is secured against the vent. 13. The projection device of claim 1, wherein the vent screen further includes a rib interposed between two mesh portions. 14. The projection device of claim 13, wherein at least a part of the frame and at least a part of the rib are not visible from the exterior of the projection device when the vent screen is secured against the vent, and wherein at least a part of the mesh portions are visible from the exterior of the projection device when the vent screen is secured against the vent. 15. The projection device of claim 1, wherein the vent screen further includes a plurality of ribs, each interposed between two mesh portions. 16. The projection device of claim 15, wherein at least one rib is substantially obscured from view from the exterior of the projection device when the vent screen is secured against the vent, and wherein at least a part of the mesh portions are visible from the exterior of the projection device when the vent screen is secured against the vent. 17. The projection device of claim 1, wherein the vent is an inlet vent. 18. The projection device of claim 1, wherein the vent screen is fabricated of Nylon 66. 19. A projection device, comprising: a casing having a vent; and an electrically nonconductive vent screen configured to fit within the casing against the vent, the vent screen further including: a plurality of substantially coplanar mesh portions; at least one rib, each rib disposed between and separating two adjacent mesh portions; and a frame disposed at the periphery of the plurality of mesh portions; wherein at least a portion of the vent screen is not visible through the vent from the exterior of the casing. 20. The projection device of claim 19, wherein the frame is substantially obscured from view through the vent from the exterior of the casing. 21. The projection device of claim 20, wherein the at least one rib is not visible through the vent from the exterior of the casing. 22. The projection device of claim 20, wherein at least a portion of the at least one rib is not visible through the vent from the exterior of the casing. 23. The projection device of claim 20, wherein the vent screen is positioned substantially close to a powered component within the projection device. 24. A nonconductive vent screen for use in a projection device, comprising: a substantially planar mesh portion adapted to direct air through the vent screen; a frame disposed around the periphery of the mesh portion; and an aligning mechanism including a dovetail joint adapted to provide a mechanical interlock between the screen and a mating surface. 25. The vent screen of claim 24, wherein the mesh portion, the frame, and the alignment device are integrally formed. 26. The vent screen of claim 24, wherein the vent screen including the frame and the alignment device is injection molded. 27. The vent screen of claim 24, further comprising a plurality of substantially planar mesh portions and at least one rib, wherein each of the at least one rib is interposed between two mesh portions. 28. The vent screen of claim 24, further comprising a retention device, wherein the retention device is configured to engage a corresponding feature in the projection device. 29. The vent screen of claim 24 wherein the aligning mechanism slidably engages the mating surface.