SECURING A FRESNEL LENS TO A REFRACTIVE OPTICAL ELEMENT

摘要

A headset for virtual reality applications includes an optical element configured to modify light from an electronic display in the headset and to direct the modified light to a user. The optical element may include a Fresnel lens secured to a lens by securing the Fresnel lens to a mold and inserting a casting material into the mold so the casting material forms the lens and a portion of the casting material exists on and past an edge of the Fresnel lens. This encases the edge of the Fresnel lens in the casting material, securing the Fresnel lens to the lens.

主权项

1. A virtual reality headset comprising:
an optical block with one end adjacent to an exit pupil corresponding to a position of a user's eye when using the virtual reality headset, the optical block comprising:
an electronic display element opposite the exit pupil, the electronic display element projecting image light toward the exit pupil;a corrective optics block between the electronic display and the exit pupil, the corrective optics block comprising a diffractive optical element and a refractive optical element, the corrective optics block configured to correct one or more types of optical error in the projected image light.