US 12,296,549 B2
Methods and apparatuses for casting polymer products
Sharad D. Bhagat, Austin, TX (US); Chieh Chang, Cedar Park, TX (US); and Christophe Peroz, Tokyo (JP)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by MAGIC LEAP, INC., Plantation, FL (US)
Filed on Dec. 1, 2021, as Appl. No. 17/539,969.
Application 17/539,969 is a continuation of application No. 17/285,877, granted, now 11,198,233, previously published as PCT/US2019/056519, filed on Oct. 16, 2019.
Claims priority of provisional application 62/746,414, filed on Oct. 16, 2018.
Prior Publication US 2022/0088839 A1, Mar. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29D 11/00 (2006.01); B29C 35/08 (2006.01); B29C 39/26 (2006.01); B29L 11/00 (2006.01)
CPC B29D 11/00663 (2013.01) [B29C 35/0888 (2013.01); B29C 39/26 (2013.01); B29C 2035/0827 (2013.01); B29L 2011/0075 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for forming a waveguide part, the method comprising:
dispensing a photocurable material between a first mold portion and a second mold portion opposite the first mold portion;
irradiating the photocurable material with radiation suitable for photocuring the photocurable material to form a cured waveguide film so that different portions of the cured waveguide film have different rigidity;
separating the cured waveguide film from the first and second mold portions; and
singulating the waveguide part from the cured waveguide film,
wherein the waveguide part corresponds to portions of the cured waveguide film having a higher rigidity than other portions of the cured waveguide film.