High speed binary compressive light field projection system
AssigneeDisney Enterprises, Inc.
InventorQuinn Yorklun Jen Smithwick
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Abstract
Implementations of a compressive light field projection system are disclosed herein. In one embodiment, the compressive light field projection system utilizes a pair of light modulators, such as digital micromirror devices (DMDs), that interact to produce a light field. The light field is then projected via a projection lens onto a screen, which may be an angle expanding projection screen that includes a Fresnel lens for straightening the views of the light field and either a double lenticular array of Keplerian lens pairs or a single lenticular, for increasing the field of view. In addition, compression techniques are disclosed for generating patterns to place on the pair of light modulators so as to reduce the number of frames needed to recreate a light field.
Claims20
A light field projector, comprising:
- a light source configured to emit light;
- and
- an optical arrangement comprising:
- a first digital micromirror device (DMD), the first DMD being controlled to reflect light incident on the first DMD based, at least in part, on a first pattern,
- a second DMD, the second DMD being controlled to reflect light that has been reflected by the first DMD and is incident on the second DMD based, at least in part, on a second pattern,
- a field lens, and
- a diffuser disposed between the first and the second DMDs and comprising a microlens array including either cylindrical lenses or full spherical lenses, wherein the field lens is arranged to deflect light produced by sides of the microlens array inward, wherein, when diffusing the light, reflected light from each pixel in a row of the first DMD passes through the microlens array and the field lens to be horizontally diffused and distributed to every pixel in a corresponding row of the second DMD.
A light field projector, comprising:
- a light source configured to emit light;
- and
- an optical arrangement comprising:
- a first digital micromirror device (DMD), the first DMD being controlled to reflect light incident on the first DMD based, at least in part, on a first pattern,
- a second DMD, the second DMD being controlled to reflect light that has been reflected by the first DMD and is incident on the second DMD based, at least in part, on a second pattern, and
- a diffuser disposed between the first and the second DMDs, wherein, when diffusing the light, reflected light from each pixel in a row of the first DMD passes through the diffuser to be diffused and distributed to every pixel in a corresponding row of the second DMD.
An apparatus, comprising:
- a first digital micromirror device (DMD), the first DMD being controlled to reflect light incident on the first DMD based, at least in part, on a first pattern,
- a second DMD, the second DMD being controlled to reflect light that has been reflected by the first DMD and is incident on the second DMD based, at least in part, on a second pattern, and
- a diffuser disposed between the first and the second DMDs, wherein, when diffusing the light, reflected light from each pixel in a row of the first DMD passes through the diffuser to be diffused and distributed to every pixel in a corresponding row of the second DMD.
Dependencies are inferred from the claim text.