US 12,242,228 B2
Systems and methods for holographic projection
Michal Wengierow, Milton Keynes (GB)
Assigned to Envisics Ltd., Milton Keynes (GB)
Filed by Envisics Ltd, Milton Keynes (GB)
Filed on Feb. 15, 2022, as Appl. No. 17/671,710.
Claims priority of application No. 2102613 (GB), filed on Feb. 24, 2021.
Prior Publication US 2023/0116373 A1, Apr. 13, 2023
Int. Cl. G09G 3/00 (2006.01); G03H 1/00 (2006.01); G03H 1/08 (2006.01); G03H 1/22 (2006.01)
CPC G03H 1/2294 (2013.01) [G03H 1/0005 (2013.01); G03H 1/0808 (2013.01); G03H 1/2205 (2013.01); G09G 3/00 (2013.01); G03H 2001/0088 (2013.01); G03H 2226/02 (2013.01); G03H 2240/62 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A holographic system comprising:
a display device;
one or more processors; and
one or more tangible, non-transitory computer-readable media having program instructions stored therein, wherein the program instructions, when executed by the one or more processors, cause the holographic system to:
determine a plurality of secondary images from a primary image, each secondary image formed by sampling pixel values of the primary image at a regular array of sampling positions, wherein a first secondary image is formed using a regular array of first sampling positions and a second secondary image is formed using a regular array of second sampling positions, wherein the second sampling positions are interposed between the first sampling positions in a first direction of the array;
determine a hologram of each secondary image;
cause display of each hologram in rapid succession on the display device comprising a pixel array for a first time so as to reconstruct each secondary image from the respective hologram such that a first array of image pixels, substantially corresponding to the primary image, is perceivable, wherein image pixels of the reconstruction of the second secondary image are interposed between image pixels of the reconstruction of the first secondary image in the first direction;
cause display of each hologram in rapid succession on the display device for a second time, wherein the second time is immediately after the first time, so as to reconstruct each secondary image from the respective hologram such that a second array of image pixels is perceivable, wherein the second array of image pixels is translated in a second direction relative to the first array of images pixels; and
wherein an aperture of the display device is longer in the second direction than the first direction, wherein the second direction is orthogonal to the first direction, and wherein the image pixels formed to reconstruct each secondary image are more elongate and closely-packed in the first direction than the second direction.