Location History:
- Saint Paul, MN (US) (1989 - 1992)
- Grant Township, Washington County, MN (US) (1976 - 1996)
- White Bear Lake, MN (US) (1979 - 1997)
- Grant Township, County of Washington, MN (US) (1997)
Company Filing History:
Years Active: 1976-1997
Title: Roger H Appeldorn: Innovating Light with Optical Fiber Technologies
Introduction
Roger H Appeldorn, an accomplished inventor based in White Bear Lake, Minnesota, holds an impressive portfolio of 17 patents. His work primarily focuses on advancements in optical fiber technologies, which have significant implications for the field of illumination and light extraction.
Latest Patents
Among Roger's latest innovations, two noteworthy patents stand out. The first is the **Notched Fiber Array Illumination Device**. This invention introduces an optical fiber with a core that features a unique notch extending into the core. Light traveling at specific angles interacts with the notch, allowing for total internal reflection when the angle exceeds a predetermined threshold. If not, some light will enter the notch and emerge at a new angle, enhancing the versatility of light propagation through the fiber.
The second innovative patent is the **Structured Surface Light Extraction Overlay and Illumination System**. This system comprises a light extraction overlay designed to efficiently extract light from a light guide. The overlay utilizes an optically transparent substrate with a structured surface featuring optical elements coated with a reflective material. The architecture ensures optimal transmission of light rays, which can either continue propagation in the fiber or be emitted from the surface of the light guide.
Career Highlights
Roger is notably affiliated with the Minnesota Mining and Manufacturing Company, commonly known as 3M. His contributions to the company's research and development teams have been essential in harnessing the potential of optical technologies, leading to innovations that benefit various applications.
Collaborations
Throughout his career, Roger has collaborated with esteemed colleagues, including Michael C Lea and John C Nelson. Their joint efforts have propelled numerous projects, combining their expertise to drive innovation in optics and light manipulation.
Conclusion
Roger H Appeldorn is a distinguished inventor whose work in optical fiber technologies has set new standards for illumination systems. With a robust list of patents and valuable collaborations, his contributions continue to inspire advancements in the field, paving the way for future innovations.