Shigenori Ohi is a notable inventor based in Omiya, Japan. He has made significant contributions to the field of optical engineering, particularly in holographic interferometry. With a total of 4 patents to his name, Ohi's work has advanced the capabilities of optical inspection technologies.

Latest Patents

Ohi's latest patents include an apparatus for holographic interferometry suitable for the inspection of cylindrical optical surfaces. This innovative device utilizes a holographic optical element to split laser light into regular reflection light and diffraction light. A reference reflector plate captures the regular reflection light, while the object with a cylindrical optical surface receives the diffraction light. The object is held on a specimen holder table equipped with a four-axis adjustment mechanism, allowing precise adjustments in the X, Y, Z, and θ directions. Interference fringes are formed through the interference of light reflected from the object and the reflector plate.

Another significant patent is an interferometric surface inspection machine designed to facilitate the inspection of finished spherical lens surfaces. This machine features a surface plate with a through light guide opening and an up-down guide means suspended from the lower side of the surface plate. An interferometer is liftably supported on the up-down guide means, with a reference lens positioned in face-to-face relation with the light guide opening. Additionally, a lens mount portion is adjustably located above the light guide opening to support the peripheral edge portions of a spherical lens element.

Career Highlights

Shigenori Ohi is currently associated with Fuji Photo Optical Co., Ltd., where he continues to innovate in the field of optical technologies. His work has been instrumental in enhancing the precision and efficiency of optical inspections.

Collaborations

Ohi has collaborated with notable colleagues, including Kenichi Noguchi and Yukio Kondou, contributing to advancements in their shared field of expertise.

Conclusion

Shigenori Ohi's contributions to holographic interferometry and optical inspection technologies have established him as a prominent figure in the industry. His innovative patents reflect a commitment to advancing optical engineering, making significant impacts on the field.

Profile summary based on public USPTO records.

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