David Michael Williamson

This inventor holds 32 USPTO granted patents and 18 published patent applications, plus 1 CIPO patent and 3 EPO patents, primarily in EUV Lithography. Top assignees: Nikon Corporation, Green Water Innovations, LLC, Optos Plc. Active years: 1990-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Michael Williamson. Retrieved from https://idiyas.com/inventor/david-michael-williamson

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 32 (Patent Applications = 18)

% Patents Active = 84.4

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 1)

Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 139(Granted Patents)

Location History:

Bethel, CT (US) (1990)
Fayetteville, AR (US) (2015 - 2017)
Tucson, AZ (US) (2009 - 2024)

Company Filing History:

Green Water Innovations, LLC

4. 1 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 1990-2025

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Areas of Expertise:

EUV Lithography

Optical System

Imaging Technology

Catadioptric

Multispectral

Endoscope

Illumination System

Optical Assembly

Lens

Displacement Data

Microscope Objective

Projection Optics

32 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12383133 - Optical system for convertible imaging of posterior and anterior portions of the eye (2025-08-12),

2. 12156698 - Wide-angle pupil relay for cellphone-based fundus camera (2024-12-03),

3. 12059210 - Ophthalmic optical system, ophthalmic objective lens, and ophthalmic device (2024-08-13),

4. 11934105 - Optical objective for operation in EUV spectral region (2024-03-19),

5. 11717161 - Wide-angle pupil relay for cellphone-based fundus camera (2023-08-08),

6. 11317798 - Catadioptric unit-magnification afocal pupil relay and optical imaging system employing the same (2022-05-03),

7. 11300884 - Illumination system with curved 1d-patterned mask for use in EUV-exposure tool (2022-04-12),

8. 11099483 - Euv lithography system for dense line patterning (2021-08-24),

9. 11054745 - Illumination system with flat 1D-patterned mask for use in EUV-exposure tool (2021-07-06),

10. 10890849 - EUV lithography system for dense line patterning (2021-01-12),

11. 10747117 - Extreme ultraviolet lithography system that utilizes pattern stitching (2020-08-18),

12. 10488638 - Catadioptric imaging systems for digital scanner (2019-11-26),

13. 10386626 - Non-telecentric multispectral stereoscopic endoscope objective (2019-08-20),

14. 10359618 - Multispectral stereoscopic endoscope system and use of same (2019-07-23),

15. 10295911 - Extreme ultraviolet lithography system that utilizes pattern stitching (2019-05-21),

Title: David Michael Williamson: Pioneering Optical Innovations in Tucson, AZ

Introduction

David Michael Williamson, based in Tucson, AZ, is a distinguished inventor with an impressive portfolio of 26 patents. His work primarily focuses on advancements in ophthalmic systems and optical technology, contributing significantly to the fields of optics and vision correction.

Latest Patents

Williamson's latest patents include groundbreaking innovations such as the ophthalmic optical system, ophthalmic objective lens, and ophthalmic device. The ophthalmic optical system is engineered to apply an angular scanning light ray to the eye. It defines the modulation M as the ratio of the output angle to the input angle, where ωin represents the angle of the incident light ray to the system's optical axis, and ωout signifies the angle of the exiting light ray. This system adheres to the conditional expression Mpar

Another notable invention is an optical objective designed for operation within the extreme ultraviolet (EUV) spectral region. This catoptric system features a reference axis and includes three reflectors. The first reflector holds a pattern-source with a substantially one-dimensional pattern. The second and third reflectors are configured to create an optical image of the pattern, achieving a demagnification coefficient greater than one for extreme UV light while utilizing only two light beams originating from the first reflector.

Career Highlights

David Williamson's career has seen him associated with prominent companies in the optics industry. He has worked with Nikon Corporation, a leader in imaging and optics, and Green Water Innovations, LLC, known for its innovative approach to optical devices. His expertise and contributions have helped pave the way for advancements in optical technology.

Collaborations

Throughout his career, Williamson has collaborated with several talented professionals, including Daniel Gene Smith and Michael B Binnard. These partnerships have facilitated the exchange of ideas and innovations, reinforcing the importance of teamwork in the field of invention and design.

Conclusion

David Michael Williamson's extensive experience and innovative spirit place him at the forefront of optical invention in Tucson, AZ. His 26 patents reflect a commitment to advancing technology in ophthalmic systems and optical devices. As he continues to push the boundaries of the field, Williamson stands as a testament to the impact of creativity and innovation in solving complex problems.

Profile summary based on public USPTO records.