Image generator having an improved illumination system
First Claim
Patent Images
1. An illumination system which includes:
- a plurality of illuminators radiating light over an area of an object to be illuminated, having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity and wherein the intensity of the light at one of the outer regions is substantially equal to the intensity of the light at the other outer region;
such that illumination of the area of a head-mounted display is provided.
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Abstract
The invention provides an illumination system for a head-mounted display. The illumination system includes a plurality of illuminators which irradiate light over an area. The area has a central region where the light has a selective intensity, and outer regions on opposing sides of the central regions where the light has higher intensities than the selective intensity.
74 Citations
16 Claims
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1. An illumination system which includes:
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a plurality of illuminators radiating light over an area of an object to be illuminated, having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity and wherein the intensity of the light at one of the outer regions is substantially equal to the intensity of the light at the other outer region;
such that illumination of the area of a head-mounted display is provided. - View Dependent Claims (7, 8, 9)
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2. An illumination system which includes:
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a plurality of illuminators radiating light over an area, of an object to be illuminated, having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity and wherein the intensity of the light at one of the outer regions is substantially equal to the intensity of the light at the other outer region;
at least a first illuminator and a second illuminator, the first illuminator creating light having a first color and the second illuminator creating light having a second color which is different from the first color, the light from the first illuminator and the second illuminator being radiated over the area of the object to be illuminated;
such that illumination of the area of a head-mounted display is provided. - View Dependent Claims (3, 4)
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5. An illumination system which includes:
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a plurality of illuminators radiating light over an area, of an object to be illuminated, having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity and wherein the intensity of the light at one of the outer regions is substantially equal to the intensity of the light at the other outer region;
at least a first illuminator which creates red light, a second illuminator which creates green light, and a third illuminator which creates blue light, the light from the first, second, and third illuminators being radiated over the area of the object to be illuminated;
such that illumination of the area of a head-mounted display is provided. - View Dependent Claims (6)
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10. An illumination system which includes:
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a housing defining an enclosure having a reflective inner surface, the housing having an opening out of the enclosure;
one illuminator located on a first side of the opening in a position wherein light radiated from that illuminator reflects off the reflective surface at least once and then passes through the opening and out of the enclosure;
another illuminator located on a second side of the opening in a position wherein light radiated from that illuminator reflects off the reflective surface at least once and then passes through the opening and out of the enclosure, the light leaving the opening has an intensity distribution over an area wherein the distribution of the intensity on one side of the area is substantially a mirror image of the distribution of the intensity on an opposing side of the area;
such that illumination of the area of a head-mounted display is provided. - View Dependent Claims (11, 12)
a first group of illuminators, on the first side of the opening, comprising a first illuminator, a second illuminator, and a third illuminator, at least one of the first, second, and third illuminators creating red light, one creating green light, and one creating blue light; and
a second group of illuminators, on the second side of the opening, comprising a fourth illuminator, a fifth illuminator, and a sixth illuminator, at least one of the fourth, fifth, and sixth illuminators creating red light, one creating green light, and one creating blue light.
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12. An illumination system according to claim 11 wherein the first, second, third, fourth, fifth, and sixth illuminators are each located by a respective distance from a center of the opening, the distances being substantially equal.
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13. An illumination system for a head-mounted display, which includes:
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a first illuminator which creates red light;
a second illuminator which creates green light;
a third illuminator which creates blue light, the first second and third illuminators being located in a first group;
a fourth illuminator which creates red light;
a fifth illuminator which creates green light;
a sixth illuminator which creates blue light, the fourth, fifth, and sixth illuminators being located in a second group, the illuminators being located in a circle, the first and fourth illuminators being spaced by a distance which is substantially the same as the distance by which the second and fifth illuminators are spaced, which is substantially the same as a distance by which the third and sixth illuminators are spaced;
a reflective surface from which light from the first, second, third, fourth, fifth, and sixth illuminators reflects, whereafter the light passes through a space between the first and second groups, whereafter the light passes through an area over which the light from the first, second, third, fourth, fifth, and sixth illuminators is radiated, the area having a central region where the light has a selected intensity, and the outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity, the intensity of the light at one of the outer regions is substantially equal to the intensity of the light at the other outer region, and light having an intensity distribution in the one outer region which is substantially a mirror image of an intensity distribution of the light in the other outer region.
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14. An image generator for a head-mounted display, which includes:
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a plurality of illuminators wherein light radiated from the illuminators reflects off a reflective surface at least once and then radiates over an area having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity;
a lens located in a position wherein the light passes therethrough; and
a display which the light illuminates after leaving the lens. - View Dependent Claims (15)
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16. A method of generating an image in a head-mounted display, comprising:
creating light, utilizing a plurality of illuminators, wherein light created therefrom reflects off a reflective surface at least once and radiates over an area having a central region where the light has a selected intensity, and outer regions, on opposing sides of the central region, where the light has higher intensities than the selected intensity whereafter the light passes through a lens and then illuminates a display.
Specification