Location History:
- San Diego, CA (US) (2010 - 2012)
- Del Mar, CA (US) (2011 - 2013)
Company Filing History:
7 out of 7 
1 out of 832,718 Years Active: 2010-2013
Title: Innovations of David A Johnson
Introduction
David A Johnson is a notable inventor based in Del Mar, California. He holds a total of 8 patents, showcasing his significant contributions to the field of optical technology. His work primarily focuses on advanced lens designs that enhance the decoding of three-dimensional content.
Latest Patents
Among his latest patents is a groundbreaking invention titled "Curved lenses configured to decode three-dimensional content." This patent details a method of fabricating lenses that comprise a polyvinylalcohol polarizer film laminated with triacetate on both sides. The polarizer film boasts a polarizing efficiency equal to or exceeding 99% and a transmittance percentage equal to or exceeding 35%. Additionally, a retarder film, such as norbornene copolymer resin, is laminated on the front surface of the polarizer film to produce a desired circular polarization responsive to specified retardation wavelengths. Thermoforming and press polishing techniques are employed to fabricate and curve the blanks into lenses, which can be utilized in an injection molding process to add thickness.
Career Highlights
David has worked with Mei 3D, LLC, where he applied his expertise in optical technologies. His innovative approach to lens design has positioned him as a key figure in the development of advanced optical elements.
Collaborations
David has collaborated with James E Pritts, further enhancing his work in the field of optical innovations.
Conclusion
David A Johnson's contributions to the field of optical technology through his patents and collaborations highlight his role as a significant inventor. His innovative lens designs continue to push the boundaries of three-dimensional content decoding.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.