Ling Chen Li

US Patent:

20100111908, May 6, 2010

Filed:

Nov 2, 2009

Appl. No.:

12/610623

Inventors:

Fangming Lin - Dallas TX, US
Ling Li - Dallas TX, US
Peter Igarashi - Plano TX, US

International Classification:

A61K 35/23
C12N 5/02
C12M 1/00

US Classification:

424 937, 435375, 435325, 4352891

Abstract:

Methods and systems for the generation of induced renal cells are provided. For example, methods for inducing renal cells from lineage undifferentiated hematopoietic stem and/or progenitor cell incubated with growth factors are described. Furthermore, the invention provides methods for using induced renal cells for treating a renal disease and/or injury.

US Patent:

20220229290, Jul 21, 2022

Filed:

Apr 7, 2022

Appl. No.:

17/715730

Inventors:

- Plantation FL, US
David Carl Jurbergs - Austin TX, US
Ryan Jason Ong - Austin TX, US
Christophe Peroz - San Francisco CA, US
Chieh Chang - Cedar Park TX, US
Ling Li - Cedar Park TX, US

International Classification:

G02B 27/00
G02B 5/22
F21V 8/00
B29D 11/00

Abstract:

Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.

US Patent:

20210268756, Sep 2, 2021

Filed:

Feb 26, 2021

Appl. No.:

17/186902

Inventors:

- Plantation FL, US
Chieh Chang - Cedar Park TX, US
Ling Li - Cedar Park TX, US
Melanie Maputol West - San Francisco CA, US
Christophe Peroz - San Francisco CA, US
Ali Karbasi - Coral Gables FL, US
Sharad D. Bhagat - Austin TX, US
Brian George Hill - Duxbury MA, US

International Classification:

B29D 11/00
G02B 6/136
G02B 6/12

Abstract:

Methods are disclosed for fabricating molds for forming eyepieces having waveguides with integrated spacers. The molds are formed by etching deep holes (e.g., 5 μm to 1000 μm deep) into a substrate using a wet etch or dry etch. The etch masks for defining the holes may be formed with a thick metal layer and/or multiple layers of different metals. A resist layer may be disposed over the etch mask. The resist layer may be patterned to form a pattern of holes, the pattern may be transferred to the etch mask, and the etch mask may be used to transfer the pattern into the underlying substrate. The patterned substrate may be utilized as a mold onto which a flowable polymer may be introduced and allowed to harden. Hardened polymer in the holes may form integrated spacers. The hardened polymer may be removed from the mold to form a waveguide with integrated spacers.

US Patent:

20210109278, Apr 15, 2021

Filed:

Apr 1, 2019

Appl. No.:

17/044754

Inventors:

- Plantation FL, US
Chieh Chang - Cedar Park TX, US
Sharad D. Bhagat - Austin TX, US
Victor Kai Liu - Mountain View CA, US
Roy Matthew Patterson - Hutto TX, US
David Carl Jurbergs - Austin TX, US
Ling Li - Cedar Park TX, US
Michael Nevin Miller - Austin TX, US
Charles Scott Carden - Austin TX, US

International Classification:

F21V 8/00
G02B 5/00
G02B 27/01

Abstract:

In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and/or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and/or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.

US Patent:

20210103142, Apr 8, 2021

Filed:

Oct 8, 2020

Appl. No.:

17/065905

Inventors:

- Plantation FL, US
David Carl Jurbergs - Austin TX, US
Ryan Jason Ong - Austin TX, US
Christophe Peroz - San Francisco CA, US
Chieh Chang - Cedar Park TX, US
Ling Li - Cedar Park TX, US

International Classification:

G02B 27/00
G02B 5/22
F21V 8/00
B29D 11/00

Abstract:

Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.

US Patent:

20210011305, Jan 14, 2021

Filed:

Jul 10, 2020

Appl. No.:

16/926352

Inventors:

- Plantation FL, US
Victor Kai Liu - Mountain View CA, US
Samarth Bhargava - Saratoga CA, US
Ling Li - Austin TX, US
Sharad D. Bhagat - Austin TX, US
Christophe Peroz - San Francisco CA, US
Jason Donald Mareno - Raleigh NC, US

Assignee:

Magic Leap, Inc. - Plantation FL

International Classification:

G02B 30/52
G02B 27/00

Abstract:

A dynamic eyepiece for projecting an image to an eye of a viewer includes a waveguide layer having an input surface, an output surface opposing the input surface, and a periphery. The waveguide layer is configured to propagate light therein. The dynamic eyepiece also includes a mechanical structure coupled to at least a portion of the periphery of the waveguide layer. The mechanical structure is operable to apply a first mechanical force to the at least a portion of the periphery of the waveguide layer to impose a first surface profile on the output surface of the waveguide layer and apply a second mechanical force to the at least a portion of the periphery of the waveguide layer to impose a second surface profile different from the first surface profile on the output surface of the waveguide layer.