1. An apparatus, comprising:
a scanning platform capable of scanning an input beam fed off axis to the scanning platform to provide a scanned beam output to display a projected image; and
a optic element capable of altering distortion of the projected image along at least one or more axes, the distortion being a result of a trajectory of the scanned beam caused by the off axis input beam and a transform from a scanning mirror to an image plane.
2. An apparatus as claimed in claim 1, wherein the optic element capable of altering distortion of the projected image comprises a distortion grating, a GRIN optic, or a wedge optic, or combinations thereof, the wedge optic comprising a prism, a cone, a pyramid, a frustum, or one or more surfaces of optical material, or combinations thereof, the wedge optic comprising a first surface and a second surface disposed at a non-parallel angle with respect to the first surface.
3. An apparatus as claimed in claim 1, wherein the optic element capable of altering distortion of the projected image comprises two or more optic elements in combination.
4. An apparatus as claimed in claim 2, wherein the non-parallel angle of the first surface with respect to the second surface is selected as a function of the angle at which the input beam is fed off axis to the scanning platform.
5. An apparatus as claimed in claim 1, wherein the scanning platform comprises a microelectromechanical system (MEMS) scanner, a diffractive optic grating, a moving optic grating, a light valve, a rotating mirror, a spinning silicon device, or a flying spot projector, or combinations thereof.
6. An apparatus as claimed in claim 1, wherein the optic element capable of altering distortion of the projected image is capable of reducing or eliminating smile distortion or keystone distortion, or combinations thereof, in the projected image.
7. An apparatus as claimed in claim 1, wherein the optic element capable of altering distortion of the projected image is capable of increasing distortion, decreasing distortion, correcting distortion, or eliminating distortion, or combinations thereof, in the projected image.
8. An apparatus as claimed in claim 2, wherein the input beam is fed about 12.5 degrees off axis from the scanning platform, the non-parallel angle of the first surface with respect to the second surface is about 8.5 degrees, and the scanning platform is disposed at an angle of about 4 degrees with respect to a horizontal reference plane.
9. An apparatus as claimed in claim 1, wherein the optic element capable of altering distortion of the projected image is disposed entirely before the input beam is fed to the scanning platform, or at least in part before the input beam is fed to the scanning platform, or is disposed entirely after the input beam is fed to the scanning platform, or at least in part after the input beam is fed to the scanning element, or combinations thereof.
10. A scanned beam display, comprising:
a light source capable of generating a light beam as an input beam for scanning;
a scanning platform capable of scanning an input beam fed off axis to the scanning platform to provide a scanned beam output to display a projected image;
a display controller to control the scanning platform and the light source to generate the projected image in response to scanning action of the scanning platform and modulation of the light source; and
a wedge optic capable of altering distortion of the projected image, the distortion being a result of a trajectory of the scanned beam caused by the off axis input beam and a transform from a scanning mirror to an image plane, the wedge optic comprising a first surface and a second surface disposed at a non-parallel angle with respect to the first surface.
11. A scanned beam display as claimed in claim 10, wherein the wedge optic comprises a prism, a cone, a pyramid, a frustum, or one or more surfaces of optical material, or combinations thereof.
12. A scanned beam display as claimed in claim 10, wherein the wedge optic comprises two or more optic elements in combination.
13. A scanned beam display as claimed in claim 10, wherein the non-parallel angle of the first surface with respect to the second surface is selected as a function of the angle at which the input beam is fed off axis to the scanning platform.
14. A scanned beam display as claimed in claim 10, wherein the scanning platform comprises a microelectromechanical system (MEMS) scanner, a diffractive optic grating, a moving optic grating, a light valve, a rotating mirror, a spinning silicon device, or a flying spot projector, or combinations thereof.
15. A scanned beam display as claimed in claim 10, wherein wedge optic is capable of reducing or eliminating smile distortion or keystone distortion, or combinations thereof, in the projected image.
16. A scanned beam display as claimed in claim 10, wherein the wedge optic is capable of increasing distortion, decreasing distortion, correcting distortion, or eliminating distortion, or combinations thereof, in the projected image.
17. A scanned beam display as claimed in claim 10, wherein the input beam is fed about 12.5 degrees off axis from the scanning platform, the non-parallel angle of the first surface with respect to the second surface is about 8.5 degrees, and the scanning platform is disposed at an angle of about 4 degrees with respect to a horizontal reference plane.
18. A scanned beam display as claimed in claim 10, wherein the wedge optic is disposed entirely before the input beam is fed to the scanning platform, or at least in part before the input beam is fed to the scanning platform, or is disposed entirely after the input beam is fed to the scanning platform, or at least in part after the input beam is fed to the scanning element, or combinations thereof.
19. A method to alter remapping distortion in a scanned beam display, the method comprising:
feeding an input beam to be scanned off axis to a scanning platform to generate an output beam in a scan pattern representing a projected image; and
redirecting the input beam, or the output beam, or combinations thereof, using a wedge optic to alter remapping distortion of the projected image, the distortion being a result of a trajectory of the scanned beam caused by the off axis input beam and a transform from a scanning mirror to an image plane.
20. A method as claimed in claim 19, said redirecting comprising redirecting the input beam at entirely before the input beam is fed to the scanning platform, or at least in part before the input beam is fed to the scanning platform, or redirecting the output beam entirely after the input beam is fed to the scanning platform, or at least in part after the input beam is fed to the scanning platform, or combinations thereof.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An energy capture system for transforming wave energy of a body of water into harnessable mechanical energy comprising:
a. a flotation device including a rotatably mounted rod having at least one paddle wheel or propeller at least partially submerged beneath a surface of the body of water such that flowing water impinging on said paddle wheel imparts harnessable rotational-mechanical-energy motion to said rod;
b. a substantially vertical, support shaft anchored underneath the body of water, said flotation device being slidingly connected with said support shaft so as to ascend and descend along said support shaft as the height of a wave carrying said flotation device varies;
c. a linkage arrangement connected with said flotation device for transforming vertical motion of said flotation device into harnessable, linear-mechanical-energy.
2. The system of claim 1, further comprising:
d. at least one flow deflection structure placed in proximity to said paddle wheel or said propeller of said flotation device, said flow deflection structure having a slight convex upper surface so as to accelerate a flow of water deflected by said upper surface prior to impinging on said paddle wheel or said propeller.
3. The system of claim 2, wherein the flow deflection structure is connected to said energy capture system.
4. The system of claim 2, wherein said flow deflection structure is connected to said support shaft.
5. The energy capture system of claim 1, wherein said linkage arrangement is implemented as said rotably mounted rod.
6. The energy capture system of claim 1, wherein said linkage arrangement protrudes from said flotation device.
7. The energy capture system of claim 1, wherein said linkage arrangement includes a universal joint.
8. The energy capture system of claim 1, further comprising at least one platform, defined as a substantially planar structure on its superior aspect, inferior to the rotational turbine, and attached to the support shaft.
9. The energy capture system of claim 8 further comprising at least a second platform, substantially parallel to the direction of fluid flow in the x-axis and inferior to the first platform.
10. The energy capture system of claim 9, further comprising at least a second, adjacent system of claim 9.
11. The energy capture system of claim 8 further comprising a microprocessor controller, operative to adjust said at least one platform to a depth below the level of causing breaking of the majority of the waves at the location of the rotational turbine and close enough to the surface to be functionally adjacent to the rotational turbine (or blades).
12. The energy capture system of claim 11, wherein the microprocessor controls the platform movement in accordance with input of at least one of the group of distance from the surface, distance from the wave energy capture system, wave amplitude, wave speed, wave direction, wave length, and angle of the ramp in relation to the horizontal.
13. The energy capture system of claim 1, further comprising a depth-adjusting device attached to the flotation device, operative to adjust the depth to which the rotational device sits in the water.
14. The energy capture system of claim 1, wherein the paddle contains a means for mechanical extension and retraction.
15. A method of transforming wave energy of a body of water into harnessable mechanical-energy comprising:
(a) causing at least one paddle wheel or a propeller connected with a rod mounted in a flotation device to be at least partially submerged in the body of water so that flowing water of the body impinging on said paddle wheel or said propeller imparts harnessable rotational-mechanical-energy to said rod; and
(b) moving a linkage arrangement connected with said flotation device vertically in accordance with changes in height of a wave in the body of water carrying said flotation device so as to provide harnessable, linear-mechanical-energy.
16. The method of claim 15 further comprising a step of accelerating the flowing water prior to impinging on said paddle wheel or said propeller as the flowing water is deflected by a slightly convex upper surface of a flow deflection structure disposed in proximity to said paddle wheel or said propeller.