Douglas H Harrison

Title: Douglas H Harrison: Innovator in Optical Systems

Introduction

Douglas H Harrison is a notable inventor based in Redwood City, CA (US). He has made significant contributions to the field of optics, particularly in the design of video projectors. His innovative approach has led to the development of a high-efficiency optical system that enhances the performance of liquid-crystal light-valve video projectors.

Latest Patents

Douglas H Harrison holds 1 patent for his invention titled "Optics for a single-lens video projector with color-specific." This patent describes a high-efficiency optical system that separates high-intensity, unpolarized white light into primary color components using color-selective filters. The design ensures that light of each primary color is characterized by a specific wavelength passband, optimizing the projector's performance. The system utilizes low f/# optics in conjunction with absorptive polarizers to enhance brightness and efficiency without sacrificing contrast.

Career Highlights

Harrison is associated with Greyhawk Systems, Inc., where he applies his expertise in optical systems. His work has been instrumental in advancing the technology used in video projection, making it more efficient and effective for various applications.

Collaborations

Throughout his career, Douglas has collaborated with talented individuals such as Duane A Haven and David W Vollmer. These partnerships have contributed to the successful development of innovative optical solutions.

Conclusion

Douglas H Harrison's contributions to optical technology, particularly in video projectors, highlight his role as a significant inventor in the field. His innovative designs continue to influence the industry and improve the quality of visual presentations.