公开(公告)号：US20210215536A1

公开(公告)日：2021-07-15

申请号：US17154895

申请日：2021-01-21

Applicant: Magic Leap, Inc.

Inventor： Miller Harry Schuck, III ,  Lei Zhang ,  Etienne Gregoire Grossmann ,  Nukul Sanjay Shah ,  Ohad Zohar ,  Robert Zito ,  Nicholas Ihle Morley ,  Jason Schaefer ,  Zhiheng Jia ,  Eric C. Browy ,  Marshall Charles Capps ,  Kazunori Tanaka ,  Grace Vesom ,  John Monos

IPC: G01J3/02 ,  G01J3/46 ,  G06T7/80 ,  G06T7/90

Abstract: A method for characterizing a digital color camera includes, for each of three primary colors used in a field sequential color virtual image, determining a conversion model for each color using RGB values and the color-measurement values. For each primary color, the method includes illuminating a display device using an input light beam of a primary color having spectral properties representative of a light beam in a virtual image in a wearable device. The method includes capturing, with the digital color camera, an image of the display device, and determining, from the image, RGB values for each primary color. The method includes capturing, with a color-measurement device, a color-measurement value associated with each corresponding primary color at the display device, thereby acquiring a color-measurement value in an absolute color space. A conversion model for each color is determined using RGB values and the color-measurement values.

公开(公告)号：US10444419B2

公开(公告)日：2019-10-15

申请号：US15683702

申请日：2017-08-22

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Robert D. TeKolste ,  Victor K. Liu ,  Christophe Peroz ,  Pierre St. Hilaire ,  Evgeni Poliakov ,  Jason Schaefer ,  Mauro Melli ,  Melanie West ,  Kang Luo ,  Vikramjit Singh ,  Frank Y. Xu

IPC: F21V8/00 ,  G02B5/30 ,  G02B5/18 ,  G02B27/00 ,  G02B27/28 ,  G02B27/01 ,  H04N9/31 ,  G02C11/00 ,  G02C5/16 ,  G06F1/16 ,  G06F1/20 ,  G09G3/00 ,  G02B27/10 ,  H05K7/20 ,  G06F3/01 ,  G06F3/147 ,  G09G3/20 ,  G02B27/30

Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.

公开(公告)号：US20180275410A1

公开(公告)日：2018-09-27

申请号：US15927808

申请日：2018-03-21

Applicant: Magic Leap, Inc.

Inventor： Ivan Li Chuen Yeoh ,  Lionel Ernest Edwin ,  Nicole Elizabeth Samec ,  Nastasja U. Robaina ,  Vaibhav Mathur ,  Tim Dalrymple ,  Jason Schaefer ,  Clinton Carlisle ,  Hui-Chuan Cheng ,  Chulwoo Oh ,  Philip Premysler ,  Xiaoyang Zhang ,  Adam Carlson

IPC: G02B27/01 ,  G02B27/00 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B2027/0134 ,  G02B2027/0147 ,  G02B2027/0178 ,  G02B2027/0185 ,  G06T15/00 ,  G06T19/006 ,  G06T2210/36 ,  H04N13/279 ,  H04N13/341 ,  H04N13/344 ,  H04N13/383 ,  H04N13/395 ,  H04N13/398 ,  H04N2213/002

Abstract: Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of a display system based on detected sensor information. A fixation point is determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual objects to present is obtained, with the location information indicating three-dimensional positions of the virtual objects. Resolutions of at least one virtual object is adjusted based on a proximity of the at least one virtual object to the fixation point. The virtual objects are presented to a user by display system with the at least one virtual object being rendered according to the adjusted resolution.

公开(公告)号：US20180180875A1

公开(公告)日：2018-06-28

申请号：US15851330

申请日：2017-12-21

Applicant: Magic Leap, Inc.

Inventor： Timothy Mark Dalrymple ,  Clinton Carlisle ,  Jason Schaefer ,  Andrew C. Duenner ,  Vaibhav Mathur

IPC: G02B26/10 ,  G02B6/02

Abstract: Described are optical fibers and scanning fiber displays comprising optical fibers. The disclosed optical fibers include a plurality of mass adjustment regions, such as gas-filled regions, positioned between a central waveguiding element and an outer periphery for reducing a mass of the optical fiber as compared to an optical fiber lacking the plurality of mass adjustment regions.