Xuan T Phan

US Patent:

7229741, Jun 12, 2007

Filed:

May 29, 2003

Appl. No.:

10/446772

Inventors:

Songvit Setthachayanon - Longmont CO, US
Xuan T. Phan - Raleigh NC, US
Mark David Michaels - Colorado Springs CO, US
Benjamin C. Ihas - Boulder CO, US

Assignee:

InPhase Technologies, Inc. - Longmont CO

International Classification:

G03C 1/72
G03H 1/02

US Classification:

4302811, 430 1, 430 2, 4302881, 359 3

Abstract:

A novel liquid photoreactive asymmetric acrylate compound containing sulfur, aromatic moieties, and optionally bromine, and having high dynamic range sensitivity is disclosed. The acrylate compound is a monomer for a photoimageable system. In one embodiment, when about 2–8% by weight of the acrylate compound is dissolved in a two-component urethane matrix system and incorporated in an optical article formed by reacting the two-component urethane matrix system, the optical article shows a sensitivity of about 4 or more and a shrinkage during the formation of the optical article of about 0. 05% versus a sensitivity of 2. 26 and a shrinkage of 0. 13% when tribromophenyl acrylate, a commercial monomer, was used.

US Patent:

7282322, Oct 16, 2007

Filed:

May 29, 2003

Appl. No.:

10/446771

Inventors:

Songvit Setthachayanon - Longmont CO, US
Xuan T. Phan - Raleigh NC, US
Mark David Michaels - Colorado Springs CO, US
Benjamin C. Ihas - Boulder CO, US

International Classification:

G03C 1/72
G03H 1/02

US Classification:

4302811, 430 1, 430 2, 4302881, 359 3

Abstract:

A novel photoimageable system for a two-chemistry system containing liquid photoreactive asymmetric acrylate compound containing sulfur, aromatic moieties, and optionally bromine, and an aluminum salt compound is disclosed. The photoimageable system has high dynamic range (M/#) and sensitivity and unexpectedly high temperature and high humidity resistance. The photoimageable system retains its dynamic range when exposed to 60 C. for 4 weeks while a composition without the aluminum salt compound lost 75% of its dynamic range under similar exposure conditions. In one embodiment, 2-10 weight % of a thio-butylacrylate dissolved in a two-component urethane matrix containing 0. 002 to 1 weight % of the aluminum salt compound showed a dynamic range of greater than 5 for a 200 microns thick sample and retained more than 80% of the dynamic range after 4 weeks exposure at 60 C.

US Patent:

7521154, Apr 21, 2009

Filed:

Apr 11, 2003

Appl. No.:

10/411380

Inventors:

Timothy Trentler - Longmont CO, US
Melinda Schnoes - Longmont CO, US
Michael Coles - Longmont CO, US
Xuan Phan - Raleigh NC, US

Assignee:

Inphase Technologies, Inc. - Longmont CO

International Classification:

G03H 1/02

US Classification:

430 1, 430 2, 359 3

Abstract:

Described are holographic storage mediums and method of making holographic storage mediums. The holographic storage mediums may have write components that bind to the matrix to form a pattern in the media. The holographic storage mediums may also be rewriteable.

US Patent:

8062809, Nov 22, 2011

Filed:

Apr 17, 2009

Appl. No.:

12/426016

Inventors:

Timothy J. Trentler - Longmont CO, US
Melinda Schnoes - Longmont CO, US
Michael C. Cole - Longmont CO, US
Xuan T. Phan - Raleigh NC, US

Assignee:

InPhase Technologies, Inc. - Longmont CO

International Classification:

G03H 1/02

US Classification:

430 1, 430 2, 4302801, 359 3

Abstract:

Described are holographic storage mediums and method of making holographic storage mediums. The holographic storage mediums may have write components that bind to the matrix to form a pattern in the media. The holographic storage mediums may also be rewriteable.