Three-dimensional image display apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorTakao Tomono
Life of this patent
Estimating the term…
Abstract
A three-dimensional image display apparatus is provided. The three-dimensional image display apparatus, which includes an image forming display flat panel and a lens unit that is disposed in front of the image forming display flat panel and converts images projected from the image forming display flat panel into three-dimensional images. The lens unit includes a set of diffractive optical devices, each of which includes a plurality of diffractive grating elements that are parallel to one another and are disposed above the image forming display flat panel. Accordingly, the three-dimensional image display apparatus uses diffractive optical devices, each of which is composed of diffractive grating elements having very narrow widths, thereby displaying two- and three-dimensional images of good quality.
Claims21
A three-dimensional image display apparatus comprising an image forming display flat panel and a lens unit, which is disposed in front of the image forming display flat panel and converts images projected from the image forming display flat panel into three-dimensional images, wherein the lens unit comprises a set of diffractive optical devices, all of which are in the same plane and each of which comprises a plurality of diffractive grating elements that are parallel to one another and are disposed above the image forming display flat panel, wherein a width of each adjacent diffractive grating element is smaller than a width of the adjacent grating element that is closer to the center of the diffractive optical device.
A three-dimensional image display apparatus comprising:
- an image forming display flat panel;
- and
- a lens unit disposed in front of the image forming display flat panel, wherein the lens unit converts images projected from the image forming display flat panel into three-dimensional images and comprises a plurality of identical adjacent diffractive optical devices, each diffractive optical device comprising a plurality of adjacent diffractive grating elements that are parallel to one another, wherein a width of each adjacent diffractive grating element is smaller than a width of the adjacent diffractive grating element that is closer to the center of the diffractive optical device.
A three-dimensional image display apparatus comprising an image forming display flat panel and a lens unit, which is disposed in front of the image forming display flat panel and converts images projected from the image forming display flat panel into three-dimensional images, wherein the lens unit comprises a set of diffractive optical devices, all of which are substantially the same size and in substantially the same plane and each of which comprises a plurality of diffractive grating elements that are parallel to one another and are disposed above the image forming display flat panel, wherein a width of each adjacent diffractive grating element is smaller than a width of the adjacent diffractive grating element that is closer to the center of the diffractive optical device.
A three-dimensional image display apparatus comprising:
- an image forming display flat panel;
- and
- a lens unit disposed in front of the image forming display flat panel, wherein the lens unit converts images projected from the image forming display flat panel into three-dimensional images and comprises a plurality of identical adjacent diffractive optical devices, each diffractive optical device comprising a plurality of adjacent diffractive grating elements that are parallel to one another, and wherein a diffractive grating element located at a center of each respective diffractive optical device is wider than the other diffractive grating elements and a width of each adjacent diffractive grating element is smaller than a width of the adjacent diffractive grating element that is closer to the center of the diffractive optical device and the height of each adjacent diffractive grating element is equal.
Dependencies are inferred from the claim text.