Method and/or apparatus for projecting an image
View Patent ↗Methods, apparatuses and systems for projecting an image, such as a diffused image, are disclosed herein.
1. A method for projecting an image, comprising:
defining an object plane relative to a relay lens; and
providing light through a light path modifier offset from the object plane and through the relay lens to form an image having a fade out transition region on a display device.
2. The method of claim 1 , further comprising:
positioning the light path modifier such that a distance between an exit end of the light path modifier and the relay lens is shorter than a distance between the object plane and the relay lens.
3. The method of claim 1 , further comprising:
positioning the light path modifier such that a distance between an exit of the light path modifier and the relay lens is longer than a distance between the object plane and the relay lens.
4. The method of claim 1 , wherein said providing of light further comprises:
generating light with a light source; and
directing the light from the light source to an entry end of the light path modifier.
5. The method of claim 1 , further comprising:
modulating the light with the display device, and projecting an image of the modulated light from the display device with a projection lens, the image including a border and a fade out transition region on an interior perimeter of the border.
6. An apparatus, comprising:
a relay lens defining an object plane;
a light path modifier having an exit positioned offset from the defined object plane; and
a display device designed to receive light from the light path modifier and the relay lens, the light forming an image having a fade out transition region.
7. The apparatus of claim 6 , wherein the light path modifier comprises an integrator tunnel or a pair of fly eye panels.
8. The apparatus of claim 6 , further comprising at least one condensing lens.
9. A system comprising:
a light source designed to generate light;
a light path modifier designed to receive the light generated from the light source at an entry end, and to transmit the light at an exit end; and
a relay lens, defining an object plane that is offset from the exit end, designed to receive the light from the exit end and to transmit the light to a display device to form an image having a fade out transition region on the display device.
10. The system of claim 9 , wherein the display is further adapted to receive the light from the relay lens and to modulate the light into a first image.
11. The system of claim 10 , further comprising:
a projection lens adapted to project the first image of the display onto a screen at a first location.
12. The system of claim 11 , wherein the light source, the light path modifier, the relay lens, the display, and the projection lens comprise a first projection device, the system further comprising:
a second projection device, designed to project a second image onto the screen at a second location, the first and the second locations at least partially overlapping.
13. The system of claim 12 , wherein the first image includes a border and a fade-out transition region around an interior perimeter of the border.