Optical assembly with holographic optics for folded optical path
AssigneeMeta Platforms Technologies, LLC
InventorsAndrew Maimone, Junren Wang, Barry David Silverstein
Life of this patent
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Abstract
An optical device for a head-mounted display device includes a first partial reflector and a second partial reflector positioned relative to the first partial reflector so that the second partial reflector receives first light transmitted through the first partial reflector and reflects at least a portion of the first light toward the first partial reflector as second light. At least a portion of the second light is reflected by the first partial reflector as third light, and at least a portion of the third light is transmitted through the second partial reflector. At least one of the first partial reflector or the second partial reflector includes a reflective holographic element.
Claims1
An optical system, comprising:
- an optical device including:
- a first partial reflector;
- and
- a second partial reflector positioned relative to the first partial reflector so that the second partial reflector receives first light transmitted through the first partial reflector and reflects at least a portion of the first light toward the first partial reflector as second light, wherein:
- at least a portion of the second light is reflected by the first partial reflector as third light, and at least a portion of the third light is transmitted through the second partial reflector, and
- at least one of the first partial reflector or the second partial reflector comprises a reflective holographic element;
- and
- a display device.
Dependencies are inferred from the claim text.