Tomoo Doi

Title: Tomoo Doi: Innovator in Optical Systems

Introduction

Tomoo Doi is a notable inventor based in Wakayama-Ken, Japan. He has made significant contributions to the field of optical systems, holding a total of 2 patents. His work focuses on enhancing the design and functionality of lens systems, which are crucial in various optical applications.

Latest Patents

Doi's latest patents include a lens holding structure in a lens block that forms all or part of an optical system. This innovative structure allows for a compact lens block with inexpensive and simple construction. It utilizes a holding barrel with an outer diameter smaller than that of the largest lens element included in the lens block. The largest lens element is fixed to another lens element or the holding barrel by a face that has a predetermined angle with respect to the optical axis of the lens block. Another significant patent is for a zoom lens system that features two lens units. The first lens unit has a negative optical power, while the second lens unit has a positive optical power. This design allows for a variable air space between the two units, facilitating zooming capabilities.

Career Highlights

Tomoo Doi is currently associated with Minolta Company, Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing lens design and functionality, contributing to the company's reputation for quality optical products.

Collaborations

Doi has collaborated with notable coworkers such as Tetsuo Kohno and Hiroyuki Matsumoto. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge optical solutions.

Conclusion

Tomoo Doi's contributions to optical systems through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the design and functionality of lens systems, making a lasting impact on optical technology.