Hitoshi Ohashi is a prominent inventor based in Hachioji, Japan. He has made significant contributions to the field of optical systems, holding a total of 6 patents. His work focuses on innovative solutions for cutting infrared light and enhancing illumination efficiency in projection devices.

Latest Patents

Ohashi's latest patents include an illuminating optical system designed to cut infrared light using a relief type optical element. This system features a light source and a relief type diffraction optical element with a rectangular sectional-shaped grating. The design allows primarily zero order light to be utilized for illumination while filtering out higher order and infrared light. The relief pattern is characterized by a specific ratio of concave to convex portions, ensuring effective light management without the need for an infrared cutter. Another notable patent is an illuminating optical system for use in a projection exposure device. This system boasts high utilization efficiency of light from the source and is constructed simply, comprising a light source, a light flux separating optical system, and a condenser optical system.

Career Highlights

Hitoshi Ohashi is currently employed at Olympus Optical Company, Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of illumination systems used in various applications.

Collaborations

Ohashi has collaborated with notable colleagues, including Yasuhiro Kamihara and Ayami Imamura. Their combined expertise has contributed to the development of cutting-edge optical solutions.

Conclusion

Hitoshi Ohashi's contributions to optical systems demonstrate his commitment to innovation and excellence in technology. His patents reflect a deep understanding of light management and efficiency, positioning him as a key figure in the field.

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