Location History:
- Rancho Palos Verdes, CA (US) (2000 - 2010)
- Ranchos Palos Verdes, CA (US) (2011)
Company Filing History:
9 out of 16 
1 out of 6 
1 out of 1 Years Active: 2000-2011
Title: **Thomas A. Balch: Innovator in Optical Lens Technology**
Introduction
Thomas A. Balch, a prominent inventor based in Rancho Palos Verdes, California, holds an impressive portfolio with 12 patents to his name. His contributions significantly advance the field of ophthalmic lens technology, showcasing his commitment to innovation and improvement of eyewear functionality.
Latest Patents
Among Balch's latest inventions is a patent for a *Lens with Continuous Power Gradation*. This innovative ophthalmic lens features a first surface that exhibits a gradual increase in optical power across the entire usable optical area. This design eliminates discontinuities, ensuring a smooth transition in prescription values. The lens configuration includes an opposite surface designed to complement the power gradation, providing a stabilized optical power area suitable for both near and distance viewing.
Another notable patent is the *Dispersion Demonstrator for Eyewear Lenses*. This invention supports comparative demonstrations of the optical properties of different eyewear lenses, focusing on dispersion characteristics. The apparatus is equipped with an illumination source emitting a spectrum of visible light and a target that creates images on the light path. This feature allows interchangeable test lenses to be assessed, facilitating a comprehensive comparison of each lens's optical performance through simultaneous viewing.
Career Highlights
Throughout his career, Thomas A. Balch has worked with reputable companies such as Younger Manufacturing Company and Younger Manufacturing Co., Inc. His tenure at these organizations has allowed him to apply his inventive expertise and contribute to the development of advanced lens technologies.
Collaborations
In his professional journey, Balch has collaborated with notable peers, including Nancy L. S. Yamasaki and Russell E. Evans. These collaborations have enriched his innovation process, helping him to refine his ideas and introduce groundbreaking products to the market.
Conclusion
In summary, Thomas A. Balch stands out as a key innovator in optical lens technology. His patents reflect a deep understanding of the practical needs of eyewear users, leading to advancements that enhance the functionality and comfort of lenses. Through his ongoing work and collaborations, Balch continues to influence the eyewear industry positively.