John D Bradbrook

Title: The Innovations of John D. Bradbrook

Introduction

John D. Bradbrook is a notable inventor based in Royston, GB. He holds a total of four patents, showcasing his contributions to the field of technology and innovation. His work primarily focuses on advancements in optical systems, particularly in camera technology.

Latest Patents

One of his latest patents is a sophisticated zoom lens for cameras. This innovative camera zoom lens system includes several key components. It features means for generating and storing a first information signal that represents a predetermined position of the first movable lens group. Additionally, it has means for generating a second information signal that determines the relationship between the respective positions of the first and second movable lens groups. The system employs first computing means to derive a third signal from the stored first information signal, representing the position to which the second movable lens group must move to produce an in-focus image of an object at infinity. Furthermore, it includes second computing means that generate a correction signal, which, when combined with the third signal, produces an output signal indicating the position for the second movable lens group to achieve focus at a specified distance. The system also incorporates third computing means for generating and storing a fourth signal for the second movable lens group, along with sensing means for producing additional information signals related to the actual positions of the lens groups. A central processor unit is responsive to these signals, producing error signals to correct any discrepancies in the lens positions.

Career Highlights

Throughout his career, John D. Bradbrook has made significant contributions to the field of optics. His innovative designs and patents have advanced camera technology, making it more efficient and effective for users. His work reflects a deep understanding of optical systems and their applications.

Collaborations

John has collaborated with notable individuals in his field, including Robert M. Pettigrew and John H. Fisher. These collaborations have likely contributed to the development and refinement of his innovative ideas.

Conclusion

John D. Bradbrook's contributions to camera technology through his patents demonstrate his expertise and innovative spirit. His work continues to influence the field of optics and inspire future advancements.