Mark A Ellis

Title: Mark A Ellis - Innovator in Video Camera Technology

Introduction

Mark A Ellis is a notable inventor based in Lancaster, PA (US). He has made significant contributions to the field of video camera technology, particularly with his innovative focusing systems. His work has paved the way for advancements in closed circuit video cameras.

Latest Patents

Mark A Ellis holds a patent for a "Dual focus range apparatus for TV camera." This invention features a focusing system designed for closed circuit video cameras. The system utilizes a carrier block that moves parallel to the lens axis to focus images at close range. This is achieved through the use of lenses that are typically focused at infinity, accommodating changes in focus required by system tolerances. The motion of the carrier block is facilitated by two cams on a single shaft, which press against the carrier block and guide it along rods as the cam shaft is turned. To achieve two focusing ranges, the cam shaft is positioned within two pivoting saddles, allowing the entire mechanism to shift between two preset positions suitable for different lenses.

Career Highlights

Mark A Ellis is currently employed at Burle Technologies, Inc., where he continues to innovate in the field of video technology. His work has been instrumental in enhancing the functionality and versatility of video camera systems.

Collaborations

One of his notable coworkers is David T Frederick, with whom he has likely collaborated on various projects within the company.

Conclusion

Mark A Ellis is a distinguished inventor whose contributions to video camera technology have had a lasting impact. His innovative patent demonstrates his commitment to advancing the field and improving the functionality of video systems.