US 12,235,473 B2
Curved shell and manufacturing method thereof
Shih-Kan Lin, Hsin-Chu (TW); and Chia-Tien Chen, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Jul. 1, 2021, as Appl. No. 17/364,908.
Claims priority of application No. 202010637249.9 (CN), filed on Jul. 3, 2020.
Prior Publication US 2022/0004019 A1, Jan. 6, 2022
Int. Cl. G02B 30/50 (2020.01); B29C 59/02 (2006.01); G02B 1/11 (2015.01); G02B 1/14 (2015.01); B29C 35/08 (2006.01); B29K 105/00 (2006.01)
CPC G02B 30/50 (2020.01) [B29C 59/022 (2013.01); G02B 1/11 (2013.01); G02B 1/14 (2015.01); B29C 35/0805 (2013.01); B29C 2035/0827 (2013.01); B29C 2059/023 (2013.01); B29K 2105/0097 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A curved shell configured to receive a projection light beam provided by a projection device, the curved shell comprising a curved main body, a microstructure layer and a plurality of light-resistant layers, wherein
the curved main body has an inner surface and an outer surface opposite to each other, and the outer surface has different curvatures,
the microstructure layer is disposed on the outer surface and comprises a plurality of first inclined surfaces and a plurality of second inclined surfaces distributed in alternation, and any two adjacent ones of the first inclined surfaces and the second inclined surfaces have an included angle, and
the light-resistant layers are disposed on the first inclined surfaces, wherein the light-resistant layers are configured to reflect or absorb ambient light beams from outside of the curved main body, the inner surface receives the projection light beam, and the projection light beam passes through the second inclined surfaces to form a projection image.