US 11,054,643 B2
Holographic image projection with holographic correction
Jamieson Christmas, Knowlhill (GB); and Dackson Masiyano, Knowlhill (GB)
Assigned to Envisics Ltd, Knowlhill (GB)
Filed by Envisics Ltd, Knowlhill (GB)
Filed on Jan. 25, 2019, as Appl. No. 16/257,497.
Application 16/257,497 is a continuation of application No. 15/683,443, filed on Aug. 22, 2017, granted, now 10,228,559.
Application 15/683,443 is a continuation of application No. 14/654,275, granted, now 9,766,456, issued on Sep. 19, 2017, previously published as PCT/GB2013/053403, filed on Dec. 20, 2013.
Claims priority of application No. 1223416 (GB), filed on Dec. 21, 2012.
Prior Publication US 2019/0155030 A1, May 23, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G06T 11/60 (2006.01); G06T 5/20 (2006.01); H04N 9/31 (2006.01); G03H 1/08 (2006.01); G03H 1/16 (2006.01); G03H 1/22 (2006.01); G03H 1/30 (2006.01)
CPC G02B 27/0103 (2013.01) [G03H 1/0808 (2013.01); G03H 1/0841 (2013.01); G03H 1/16 (2013.01); G03H 1/2205 (2013.01); G03H 1/2294 (2013.01); G06T 5/20 (2013.01); G06T 11/60 (2013.01); H04N 9/3185 (2013.01); G02B 2027/011 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0107 (2013.01); G02B 2027/0109 (2013.01); G03H 2001/085 (2013.01); G03H 2001/0816 (2013.01); G03H 2001/0825 (2013.01); G03H 2001/0833 (2013.01); G03H 2001/221 (2013.01); G03H 2001/2218 (2013.01); G03H 2001/2242 (2013.01); G03H 2001/2271 (2013.01); G03H 2001/2284 (2013.01); G03H 2001/306 (2013.01); G03H 2223/14 (2013.01); G03H 2225/32 (2013.01); G03H 2225/60 (2013.01); G03H 2225/61 (2013.01); G03H 2226/05 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/10024 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of projection comprising:
combining Fourier domain data representative of a 2D image with Fourier domain data having a first lensing effect to produce first holographic data; and
providing a first spatially modulated light beam to a first region of a viewing plane by a method comprising
spatially modulating light with the first holographic data to form the first spatially modulated light beam;
redirecting the first spatially modulated light beam using an optical combiner having a first region having a first optical power resulting from a curvature of the combiner in the first region thereof, and a second region having a second optical power resulting from a curvature of the combiner in the second region thereof, the second optical power being different from the first optical power as a result of the curvature in the second region being different than the curvature in the first region, the redirecting being performed by illuminating the first region of the optical combiner with the first spatially modulated beam, the optical combiner redirecting the first spatially modulated light beam to the first region of a viewing plane to provide a first image corresponding to the 2D image at the first region of the viewing plane,
wherein the first lensing effect compensates at the first region of the viewing plane for the first optical power of the first region of the optical combiner.