Paul A Greco

US Patent:

20180231771, Aug 16, 2018

Filed:

Feb 15, 2018

Appl. No.:

15/897971

Inventors:

- Plantation FL, US
Kevin Richard CURTIS - Boulder CO, US
Hui-Chuan CHENG - Cooper City FL, US
Bradley Jay SISSOM - Boulder CO, US
Paul M. GRECO - Parkland FL, US
William Hudson WELCH - Fort Lauderdale FL, US
Eric C. BROWY - Coral Springs FL, US

Assignee:

Magic Leap, Inc. - Plantation FL

International Classification:

G02B 27/00
F21V 8/00
G03B 21/20
G03B 21/00
G02B 27/28

Abstract:

An eyepiece unit with optical filters includes a set of waveguide layers including a first waveguide layer and a second waveguide layer. The first waveguide layer is disposed in a first lateral plane and includes a first incoupling diffractive element disposed at a first lateral position, a first waveguide, and a first outcoupling diffractive element. The second waveguide layer is disposed in a second lateral plane adjacent to the first lateral plane and includes a second incoupling diffractive element disposed at a second lateral position, a second waveguide, and a second outcoupling diffractive element. The eyepiece unit also includes a set of optical filters including a first optical filter positioned at the first lateral position and operable to attenuate light outside a first spectral band and a second optical filter positioned at the second lateral position and operable to attenuate light outside a second spectral band.