EYEPIECE FOR HEAD-MOUNTED DISPLAY AND METHOD FOR MAKING THE SAME

EYEPIECE FOR HEAD-MOUNTED DISPLAY AND METHOD FOR MAKING THE SAME

A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Chang, Chieh, Bhargava, Samarth, Li, Ling, Bhagat, Sharad D, Ong, Ryan Jason, Peroz, Christophe
Format: Patent
Sprache:eng
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface grating area and the second surface grating area; and singulating an eyepiece from the wafer, the eyepiece including a portion of the first surface grating area and a portion of the second surface grating area. The first surface grating in the eyepiece corresponds to an input coupling grating for a head-mounted display and the second surface grating corresponds to a pupil expander grating for the head-mounted display.