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US 2021/0063733 A1Published application
Optical system including light-guide optical element with partially-reflective internal surfaces
AssigneeLumus Ltd.
InventorEitan RONEN
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Abstract
An optical system includes a light-guide optical element (LOE) (100) having a pair of parallel major external surfaces (102, 104) and a set of mutually-parallel reflector surfaces (106a, 106b, 106c) obliquely angled within the LOE. At least one of the reflector surfaces has high reflectivity for angles of incidence above 60 degrees to the normal and partial reflectivity for angles of incidence less than 35 degrees to the normal.
Claims12
An optical system comprising:
- (a) a light-guide optical element (LOE) having a pair of parallel major external surfaces;
- and
- (b) a plurality of mutuahy-parahel reflector surfaces within said LOE, said reflector surfaces being obliquely angled relative to said major external surfaces,
- wherein at least one of said reflector surfaces is configured to have high reflectivity for angles of incidence above 60 degrees to the normal and partial reflectivity for angles of incidence less than 35 degrees to the normal.
1 more element
Dependencies are inferred from the claim text.