Isao Tomisawa

Title: Isao Tomisawa: Innovator in Projection Technology

Introduction

Isao Tomisawa is a notable inventor based in Yamanshi-ken, Japan. He has made significant contributions to the field of projection technology, particularly through his innovative designs and patents. His work has had a lasting impact on how images are displayed in various applications.

Latest Patents

One of Isao Tomisawa's key patents is for a "Projection type picture display apparatus." This invention includes a light source and a polarizing beam splitter that can reflect or transmit incident light. The apparatus features a decomposing/synthesizing prism assembly that receives reflected light from the polarizing beam splitter to decompose the incident light into red, green, and blue lights. It also synthesizes these colors to produce a cohesive image. The design incorporates a plurality of reflective type liquid crystal displays that modulate and reflect the colored lights, along with a projection optical system that enlarges the picture for display on a screen. Notably, the prism assembly utilizes dichroic mirrors to manage the color light transmission effectively.

Career Highlights

Isao Tomisawa is associated with Pioneer Electronic Corporation, where he has contributed to advancements in electronic display technologies. His work has been instrumental in enhancing the quality and efficiency of projection systems.

Collaborations

Throughout his career, Isao Tomisawa has collaborated with notable colleagues, including Hideki Yamamoto and Tadashi Yoshida. These partnerships have fostered innovation and development in their respective fields.

Conclusion

Isao Tomisawa's contributions to projection technology exemplify the spirit of innovation. His patent for the projection type picture display apparatus showcases his expertise and commitment to advancing visual display systems. His work continues to influence the industry and inspire future inventors.