Location History:
- Kawasaki, JP (2003 - 2020)
- Kanagawa, JP (2020 - 2022)
Company Filing History:
Years Active: 2003-2022
Title: Shiro Igasaki: Innovator in Variable Focal Length Lens Technology
Introduction
Shiro Igasaki is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical technology, particularly in the development of variable focal length lens devices. With a total of 16 patents to his name, Igasaki's work has advanced the capabilities of lens systems used in various applications.
Latest Patents
Igasaki's latest patents include a variable focal length lens device and a variable focal length lens control method. The variable focal length lens device features a lens system of a liquid resonant type, which changes its refractive index in response to a drive signal. It is equipped with a temperature sensor that acquires temperature information of the lens system, along with a drive controller that manages the lens system's operation. The drive controller includes a resonant frequency estimation unit that calculates an estimated value of the resonant frequency based on the temperature information, and a starting frequency setting unit that establishes a starting frequency based on this estimated value. Additionally, the variable focal length lens apparatus comprises a liquid lens apparatus where the refractive index changes according to an input drive signal, along with a refractive power controller that adjusts the voltage of the drive signal in accordance with the effective power supplied to the liquid lens apparatus.
Career Highlights
Shiro Igasaki is currently employed at Mitutoyo Corporation, a company renowned for its precision measuring instruments and optical technology. His work at Mitutoyo has allowed him to focus on innovative lens technologies that enhance optical performance and versatility.
Collaborations
Igasaki has collaborated with notable colleagues, including Masaoki Yamagata and Yuki Kurahashi. These collaborations have contributed to the advancement of lens technology and the successful development of new optical devices.
Conclusion
Shiro Igasaki's contributions to the field of variable focal length lens technology have established him as a key figure in optical innovation. His patents and work at Mitutoyo Corporation continue to influence advancements in this area.