Mark D Gehisen

Title: Mark D Gehisen: Innovator in Optical Devices

Introduction

Mark D Gehisen is a notable inventor based in Eagan, MN (US). He has made significant contributions to the field of optical devices, particularly in enhancing display technologies. His innovative work has led to the development of a unique patent that addresses illumination uniformity in displays.

Latest Patents

Mark D Gehisen holds a patent for a "Brightness enhancing film and film based diffuser for improved illumination uniformity of displays." This optical device features a first film with a first side and a second side. When illuminated by light at the first side, the first film is characterized by a first fraction of broadly diffused transmitted light and a second fraction of narrowly diffused transmitted light. A second film is positioned on the second side of the first film, which has at least one free surface that diverts light. In some embodiments, the first film has a diffuse scattering optical density between 0.5 and 3. This device is particularly useful in spreading and making light uniform in a backlight for displays such as liquid crystal displays.

Career Highlights

Mark D Gehisen is associated with 3M Innovative Properties Company, where he has been able to apply his expertise in optical technologies. His work has contributed to advancements in display illumination, enhancing the visual experience for users.

Collaborations

Throughout his career, Mark has collaborated with notable colleagues, including Kenneth A Epstein and Eric Wayne Nelson. These collaborations have fostered innovation and development in the field of optical devices.

Conclusion

Mark D Gehisen's contributions to optical device technology exemplify the impact of innovation in enhancing display systems. His patent for brightness enhancing films showcases his commitment to improving illumination uniformity, making significant strides in the industry.