Haruo Abe

Title: Haruo Abe: Innovator in Optical Lens Systems

Introduction

Haruo Abe is a notable inventor based in Sakai, Japan, recognized for his contributions to optical lens technology. With a total of four patents to his name, Abe has made significant advancements in the field of photography and optical systems.

Latest Patents

Abe's latest patents include a variable field curvature lens system and a zoom lens system capable of macrophotography. The variable field curvature lens system is designed to selectively vary the peripheral field curvature, enhancing focus for nonplanar objects and enabling special photographic effects. This innovative lens system comprises a first lens group with positive refractive power, a second lens group with negative refractive power, and a third lens group with positive refractive power. The design allows for optical ray traces from an object on the optical axis at infinity to run approximately parallel with the optical axis between the second and third lens groups. The first and second lens groups can move as a unit relative to the third lens group, changing the field curvature without altering the back focal distance.

The zoom lens system capable of macrophotography provides both zooming functionality and an efficient mode for macrophotography. This system includes conventional lens groups such as a focusing lens group, variator lens group, compensator lens group, and relay lens group. During the zooming operation, these lens groups function in a traditional manner. However, in macrophotography mode, the relay lens group elements can coordinate movement with other lens elements, resulting in a compact and economical design. This innovation not only aids in image transmission but also compensates for aberrations that may arise during macrophotography.

Career Highlights

Haruo Abe has made significant strides in the optical industry, particularly through his work at Minolta Camera Kabushiki Kaisha. His expertise in lens design has contributed to the development of advanced photographic equipment.

Collaborations

Abe has collaborated with notable coworkers, including Kayoshi Tsujimoto and Tohru Matsui, further enhancing the innovative capabilities of his projects.

Conclusion

Haruo Abe's contributions to optical lens technology have paved the way for advancements in photography, showcasing his inventive spirit and dedication to innovation. His work continues to influence the field, making him a prominent figure in lens system development.