Three-dimensional representation method and an apparatus thereof

A three-dimensional display comprising:

• a first means for generating two-dimensional images in which an object to be presented is projected along the line of sight of an observer, onto a plurality of image planes located at different depth positions as seen from the observer;
• a second means for displaying the two-dimensional images generated by the first means on the plurality of image planes located at different depth positions as seen from the observer;
• and
• a third means for changing brightness levels of the two-dimensional images displayed on the plurality of image planes individually for each image plane.

A three-dimensional representation method comprising the steps of:

• generating two-dimensional images by in which an object is projected along the line of sight of an observer, onto a plurality of image planes located at different depth positions as seen from an observer;
• changing brightness levels of the generated two-dimensional images and displaying them on the respective image planes;
• and
• detecting the movement of a viewing point of the observer in longitudinal, horizontal and vertical directions to change the two-dimensional images displayed on respective displays according to the detected movement of the viewing point.

A three-dimensional representation method comprising the steps of:

• generating two-dimensional images in which an object is projected along the line of sight of an observer, onto a plurality of image planes located at different depth positions as seen from an observer;
• distributing the generated two-dimensional images to respective displays and changing brightness levels of the two-dimensional images according to depth positions where the two-dimensional images are to be displayed, and displaying them on the respective image planes;
• and
• detecting the movement of a viewing point of the observer in longitudinal, horizontal and vertical directions to change the two-dimensional images displayed on the respective displays according to the detected movement of the viewing point.

A three-dimensional display comprising:

• a two-dimensional image generating device for generating two-dimensional images in which an object is projected along the line of sight of an observer, onto a plurality of image planes located at different positions as seen from the observer;
• a brightness level changing device for changing brightness levels of the two-dimensional images and displaying them on the image planes;
• a viewing point movement detecting device for detecting the movement of a viewing point of the observer in longitudinal, horizontal and vertical directions;
• a two-dimensional image transformation device for changing the two-dimensional images according to the detected movement of the viewing point;
• and
• displays for displaying the transformed two-dimensional images.

A three-dimensional display comprising:

• a two-dimensional image generating device for generating two-dimensional images in which an object is projected along the line of sight of an observer, onto a plurality of image planes located at different positions as seen from the observer;
• a distribution device for distributing the generated two-dimensional images to displays according to depth positions where the two-dimensional images are to be displayed, the displays corresponding to the respective depth positions;
• a brightness level changing device for changing brightness levels of the two-dimensional images and displaying them on the image planes;
• a viewing point movement detecting device for detecting the movement of a viewing point of the observer in longitudinal, horizontal and vertical directions;
• a two-dimensional image transformation device for changing the two-dimensional images according to the detected movement of the viewing point;
• and
• displays for displaying the transformed two-dimensional images.

A three-dimensional representation method which generates a three-dimensional image in which an object to be presented onto planes is projected along the line of sight of an observer, by displaying the two-dimensional images on a plurality of image planes simultaneously and at desired brightness levels, the plurality of image planes being located at different depth positions, the three-dimensional representation method comprising the steps of:

• selecting one of the plurality of objects when the object to be presented comprises a plurality of objects having different depth positions;
• generating two-dimensional images by in which the selected object is projected onto planes along the line of sight of the observer;
• displaying the generated two-dimensional images on the plurality of image planes simultaneously;
• and
• repeating the above three steps for all of the plurality of objects within an after image time of human eye to successively display three-dimensional images of the plurality of objects on a time division basis within the after image time of human eye.

A three-dimensional display comprising:

• a two-dimensional image generating means for generating two-dimensional images in which one object of a plurality of objects to be presented, the plurality of objects having different depth positions, is selected one by one and selected object is projected onto the planes along the line of sight of an observer;
• a display means for displaying the two-dimensional images generated by the two-dimensional image generating means simultaneously on a plurality of image planes for one selected object after another, the image planes being located at different depth positions as seen from the observer, the display means being adapted to repetitively display all of the two-dimensional images generated by the two-dimensional image generating means successively within an after image time of human eye;
• and
• a brightness level adjusting means for adjusting brightness levels of the two-dimensional images displayed on the image planes of the display means in synchronism with the displaying of the two-dimensional images on the image planes of the display means.

A three-dimensional display comprising:

• a two-dimensional image generating means for generating two-dimensional images in which one object of a plurality of objects to be presented is selected one by one the plurality of objects having different depth positions, and the selected object is projected on to the planes along the line of sight of an observer;
• and
• a display means for displaying the two-dimensional images generated by the two-dimensional image generating means simultaneously on a plurality of image planes at predetermined brightness levels for one selected object after another, the image planes being located at different depth positions as seen from the observer, the display means being adapted to repetitively display all of the two-dimensional images generated by the two-dimensional image generating means successively within an after image time of human eye;
• wherein the display means includes:
• a two-dimensional display means located at each image plane to display two-dimensional images generated by the two-dimensional image generating means;
• and
• a brightness level adjusting means disposed in front of the two-dimensional display means.

A three-dimensional display comprising:

• a two-dimensional image generating means for generating two-dimensional images in which one object of a plurality of objects is selected one by one, the plurality of objects having different depth positions, and the selected object is projected on to the planes along the line of sight of an observer;
• and
• a display means for displaying the two-dimensional images generated by the two-dimensional image generating means simultaneously on a plurality of image planes at predetermined brightness levels for one selected object after another, the image planes being located at different depth positions as seen from the observer, the display means being adapted to repetitively display all of the two-dimensional images generated by the two-dimensional image generating means successively within an after image time of human eye;
• wherein the display means includes:
• a plurality of two-dimensional display means located at each image plane to display predetermined two-dimensional images of a plurality of two-dimensional images generated by the two-dimensional image generating means;
• and
• a brightness level adjusting means disposed in front of the plurality of two-dimensional display means.

A three-dimensional display comprising:

• a two-dimensional image generating means for generating two-dimensional images in which one object of a plurality of objects is selected one by one, the plurality of objects having different depth positions, the selected object is projected on to along the line of sight of an observer;
• and
• a display means for displaying the two-dimensional images generated by the two-dimensional image generating means simultaneously on a plurality of image planes at predetermined brightness levels for one selected object after another, the image planes being located at different depth positions as seen from the observer, the display means being adapted to repetitively display all of the two-dimensional images generated by the two-dimensional image generating means successively within an after image time of human eye;
• wherein the display means includes:
• a two-dimensional display means located at each image plane to display two-dimensional images generated by the two-dimensional image generating means at the predetermined brightness levels.

A three-dimensional display comprising:

• a two-dimensional image generating means for generating two-dimensional images in which one object after of a plurality of objects is selected one by one, the plurality of objects having different depth positions, and selected object is projected on to the planes along the line of sight of an observer;
• and
• a display means for displaying the two-dimensional images generated by the two-dimensional image generating means simultaneously on a plurality of image planes at predetermined brightness levels for one selected object after another, the image planes being located at different depth positions as seen from the observer, the display means being adapted to repetitively display all of the two-dimensional images generated by the two-dimensional image generating means successively within an after image time of human eye;
• wherein the display means includes:
• a plurality of two-dimensional display means located at each image plane to display at predetermined brightness levels predetermined two-dimensional images of a plurality of two-dimensional images generated by the two-dimensional image generating means.

A three-dimensional display comprising:

• a two-dimensional image display means for displaying two-dimensional images;
• a polarization varying means for controlling a polarization direction of display light of the two-dimensional images entering from the two-dimensional image display means and then outputting the display light;
• and
• a polarization type bifocal optical system for splitting the display light exiting from the polarization varying means into two independent polarization directions and focusing the two independent polarization direction beams on two different image planes;
• wherein the two-dimensional image display means, the polarization varying means and the polarization type bifocal optical system are arranged so that the two-dimensional images focused on the two different image planes overlap each other on the line of sight of an observer and have different depth positions.

A three-dimensional representation method which generates a three-dimensional image by arranging a plurality of image planes at different depth positions for each of left and right eyes of an observer and by displaying two-dimensional images on the plurality of image planes for each of the left and right eyes of the observer, the three-dimensional representation method comprising the steps of:

• generating two-dimensional images in which an object to be presented is projected from a point on a line passing through the left and right eyes of the observer onto the plurality of image planes;
• changing brightness levels of the generated two-dimensional images individually for each image plane for the left eye and for the right eye of the observer;
• and
• displaying the generated two-dimensional images on the plurality of image planes for the left eye and for right eye of the observer.

A head-mounted display for displaying a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions as seen by an observer, the head-mounted display comprising:

• a first means for fixing relative positions between the plurality of image planes and left and right eyes of the observer;
• a second means for generating two-dimensional images in which an object to be presented from one point on a line passing through the left and right eyes of the observer onto the plurality of image planes;
• a third means for displaying the two-dimensional images generated by the image generating means on at least two of the plurality of image planes;
• and
• a fourth means for changing brightness levels of the two-dimensional images displayed on the at least two image planes individually for each image plane.

A head-mounted display for displaying a three-dimensional image by displaying two-dimensional images on a plurality of image planes located at different depth positions as seen from a left eye of an observer and on a plurality of image planes located at different depth positions as seen from a right eye of the observer, the head-mounted display comprising:

• a first means for fixing relative positions between the plurality of image planes for the left eye and the left eye of the observer and between the plurality of image planes for the right eye and the right eye of the observer;
• a second means for generating two-dimensional images in which an object to be projected from one point on a line passing through the left and right eyes of the observer onto the plurality of image planes for the left eye and for the right eye;
• a third means for displaying the two-dimensional images generated by the image generating means on at least two of the plurality of image planes for the left eye and for the right eye;
• and
• a fourth means for changing brightness levels of the two-dimensional images displayed on the at least two image planes individually at least two image planes at a time for the left eye and for the right eye.