Three-dimensional image displaying system, method, and apparatus

Patent metadata

Field	Value
Publication number	US-10051261-B2
Application number	US-201414586273-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Feb 21, 2014
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A three-dimensional image displaying system includes a drive controller, a display panel, a refraction variable part, and a lens. The drive controller is configured to display a slice image of a stereoscopic object on the display panel according to a set sequence and control, according to a depth of the slice image in the stereoscopic object, refraction intensity of the refraction variable part for a light ray projected by the display panel when the slice image is displayed on the display panel. A time required for successively displaying all slice images, which are of the stereoscopic object to be imaged and are perpendicular to one visual axis, on the display panel at a time according to the set sequence is less than a time of persistence of vision. The display panel is configured to display the slice image under control of the drive controller. The lens is configured to perform imaging according to a light ray refracted by the refraction variable part.

First claim

What is claimed is:

1. A three-dimensional image displaying system, comprising:
a drive controller;
a display panel operably coupled to the drive controller;
a refraction variable part operably coupled to the display panel, the refraction variable part comprising a disk of uneven thickness, a first side, and a second side; and
a lens operably coupled to the refraction variable part,
wherein the drive controller is configured to display a slice image of a stereoscopic object on the display panel according to a set sequence and control, according to a depth of the slice image in the stereoscopic object, refraction intensity of the refraction variable part for a light ray projected by the display panel when the slice image is displayed on the display panel,
wherein a time required for successively displaying all slice images, which are of the stereoscopic object to be imaged and are perpendicular to one visual axis, on the display panel at a time according to the set sequence is less than a time of persistence of vision,
wherein the display panel is configured to display the slice image under control of the drive controller,
wherein a thickness of the refraction variable part may be changed by rotating the disk,
wherein the refraction variable part is configured to perform, according to the refraction intensity controlled by the drive controller, refraction on the light ray projected by the display panel,
wherein the light ray passes through the refraction variable part by entering the first side and exiting the second side, and
wherein the lens is configured to perform imaging according to a light ray refracted by the refraction variable part.

2. The system according to claim 1 , wherein for two slice images that are of a same stereoscopic object and are perpendicular to one visual axis, a distance between an image formed from a slice image with a larger depth in the stereoscopic object and a three-dimensional image receiving part is greater than a distance between an image formed from a slice image with a smaller depth in the stereoscopic object and the three-dimensional image receiving part, wherein an image formed from one slice image is an image formed after a refracted light ray passes through the lens when the one slice image is displayed on the display panel, and wherein the refracted light ray is obtained after a light ray projected by the display panel is refracted by the refraction variable part according to the refraction intensity controlled by the drive controller.

3. The system according to claim 1 , wherein the drive controller is further configured to display the slice image of the stereoscopic object on the display panel according to the set sequence and control the thickness of the refraction variable part according to the depth of the slice image in the stereoscopic object when the slice image is displayed on the display panel.

4. The system according to claim 1 , wherein the drive controller is further configured to display the slice image of the stereoscopic object on the display panel according to the set sequence and control a refractive index of a material of the refraction variable part according to the depth of the slice image in the stereoscopic object when the slice image is displayed on the display panel.

5. The system according to claim 1 , wherein the system further comprises a projection light source and a projection light source reflector operably coupled to the display panel, and wherein the projection light source reflector is configured to reflect a light ray emitted by the projection light source onto the display panel.

6. The system according to claim 5 , wherein an optical path between the display panel and the refraction variable part passes through the projection light source reflector, and wherein the projection light source reflector is further configured to transmit a light ray between the display panel and the refraction variable part.

7. The system according to claim 6 , wherein the system further comprises:
a photosensitive panel operably coupled to the drive controller;
a light filter operably coupled to the projection light source filter; and
an angle-adjustable reflector operably coupled to the light filter;
wherein the drive controller is further configured to adjust an image formed by a three-dimensional image receiving part or an image formed by performing an operation action on a three-dimensional image onto the photosensitive panel by adjusting the angle-adjustable reflector,
wherein the image formed by the three-dimensional image receiving part is kept in a central position of the photosensitive panel by adjusting the angle-adjustable reflector controlled by the drive controller;
wherein the image formed by a three-dimensional image receiving part is an image formed by the three-dimensional image receiving part by successively using the angle-adjustable reflector, the lens, the refraction variable part, the projection light source reflector, and the light filter,
wherein the image formed by performing an operation action on a three-dimensional image is an image formed by the action by successively using the angle-adjustable reflector, the lens, the refraction variable part, the projection light source reflector, and the light filter, and
wherein the light filter is configured to absorb a light ray that the projection light source irradiates onto the photosensitive panel.

8. The system according to claim 7 , wherein the system further comprises an external light source operably coupled to the angle-adjustable reflector, wherein the external light source is configured to enhance light intensity surrounding the three-dimensional image receiving part or an operator of executing an operation action, wherein the light filter comprises an infrared cut-off filter located between the projection light source and the photosensitive panel and between the projection light source reflector and the photosensitive panel when the external light source is an infrared light source, wherein the light filter comprises two polarizers that are mutually perpendicular in a polarization direction when the external light source is a light source of natural light, and wherein one of the two polarizers is located between the projection light source and the projection light source reflector and the other is located between the projection light source reflector and the photosensitive panel.

9. The system according to claim 7 , wherein the drive controller is further configured to determine an operation instruction according to the image formed by the operation action on the photosensitive panel and re-perform imaging on the stereoscopic object according to the determined operation instruction when the image formed on the photosensitive panel comprises the image formed by performing an operation action on a three-dimensional image.

10. A three-dimensional image displaying method, comprising:
displaying a slice image of a stereoscopic object on a display panel according to a set sequence; and
controlling, according to a depth of the slice image in the stereoscopic object, refraction intensity of a refraction variable part for a light ray projected by the display panel when the slice image is displayed on the display panel,
wherein the light ray passes through the refraction variable part by entering a first side and exiting a second side of the refraction variable part,
wherein the refraction variable part comprises a disk of uneven thickness,
wherein a thickness of the refraction variable part is changed by rotating the disk,
wherein a light ray refracted by the refraction variable part is imaged through a lens, and
wherein a time required for successively displaying all slice

Assignees

• Huawei Device Dongguan Co Ltd

Inventors

• Guo Zejin
• He Feng
• Wu Bin

Classifications

• H04N13/322 Primary

  using varifocal lenses or mirrors · CPC title

• G02B30/35

  using reflective optical elements in the optical path between the images and the observer · CPC title

• G02B30/36

  using refractive optical elements, e.g. prisms, in the optical path between the images and the observer · CPC title

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• G02B30/24

  involving temporal multiplexing, e.g. using sequentially activated left and right shutters · CPC title