US 12,265,357 B2
Displaying three-dimensional objects
Stephen John Hart, San Juan Capistrano, CA (US); Robert Alan Hess, Mesa, AZ (US); Kamran Qaderi, San Gabriel, CA (US); and Jonathan Seamus Blackley, South Pasadena, CA (US)
Assigned to Pacific Light & Hologram, Inc., San Gabriel, CA (US)
Filed by Pacific Light & Hologram, Inc., San Gabriel, CA (US)
Filed on Dec. 12, 2022, as Appl. No. 18/079,788.
Application 18/079,788 is a continuation of application No. 17/478,234, filed on Sep. 17, 2021, abandoned.
Application 17/478,234 is a continuation of application No. PCT/US2021/050275, filed on Sep. 14, 2021.
Application 17/478,234 is a continuation of application No. PCT/US2021/050271, filed on Sep. 14, 2021.
Claims priority of provisional application 63/149,964, filed on Feb. 16, 2021.
Claims priority of provisional application 63/079,707, filed on Sep. 17, 2020.
Prior Publication US 2023/0142054 A1, May 11, 2023
Int. Cl. G03H 1/26 (2006.01); G02B 5/18 (2006.01); G02B 5/30 (2006.01); G02B 27/01 (2006.01); G02B 27/09 (2006.01); G02B 27/30 (2006.01); G02B 27/42 (2006.01); G02B 30/10 (2020.01); G02B 30/40 (2020.01); G02B 30/52 (2020.01); G02F 1/133 (2006.01); G02F 1/1335 (2006.01); G03H 1/00 (2006.01); G03H 1/22 (2006.01); G06T 19/00 (2011.01); H04N 13/275 (2018.01); H04N 13/30 (2018.01); H04N 13/346 (2018.01)
CPC G03H 1/2202 (2013.01) [G02B 5/1814 (2013.01); G02B 5/3025 (2013.01); G02B 27/0103 (2013.01); G02B 27/0927 (2013.01); G02B 27/30 (2013.01); G02B 27/4205 (2013.01); G02B 30/10 (2020.01); G02B 30/40 (2020.01); G02B 30/52 (2020.01); G02F 1/13306 (2013.01); G02F 1/133514 (2013.01); G02F 1/133528 (2013.01); G03H 1/0005 (2013.01); G03H 1/2205 (2013.01); G03H 1/2286 (2013.01); G03H 1/2294 (2013.01); G03H 1/268 (2013.01); G06T 19/006 (2013.01); H04N 13/275 (2018.05); H04N 13/30 (2018.05); H04N 13/346 (2018.05); G03H 2001/0088 (2013.01); G03H 2001/2215 (2013.01); G03H 2001/2221 (2013.01); G03H 2223/20 (2013.01); G03H 2223/22 (2013.01); G03H 2223/23 (2013.01); G03H 2223/24 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An optical device comprising:
a first optically diffractive component comprising a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle;
a second optically diffractive component comprising a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle;
a first reflective layer configured to totally reflect non-diffracted first color of light having the first incident angle and transmit the second color of light; and
a second reflective layer configured to totally reflect non-diffracted second color of light,
wherein the first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers,
wherein the first diffractive structure is configured to transmit the second color of light, and the second diffractive structure is configured to transmit the diffracted first color of light,
wherein at least one of the first diffractive structure or the second diffractive structure comprises a reflective Bragg grating configured to transmit non-diffracted light of one of the first color of light and the second color of light, wherein the transmitted non-diffracted light is being totally reflected by a corresponding reflective layer of the first reflective layer and the second reflective layer onto the reflective Bragg grating and being diffracted along a same direction as diffracted light of another one of the first color of light and the second color of light by another one of the first diffractive structure and the second diffractive structure, and
wherein a first wavelength of the first color of light is less than a second wavelength of the second color of light, and the second incident angle is less than the first incident angle.