Nikon Corporation

Yasuhiro Iwaguchi

Tetsuo Hattori

Masaaki Kusano

Kiyoshi Numazaki

Kazufumi Ishibashi

Shuichi Sugai

Tadaaki Nakamura

A cross dichroic prism comprises four triangular prisms having isosceles right triangular cross sections identical in shape, opposing side faces thereof being bonded and secured together with rectangular portions thereof facing each other; and a dichroic film having an X-shaped cross section formed between the bonding faces of the triangular prisms; wherein, of the four triangular prisms, a given prism and at least one of the prisms adjacent thereto have a refractive index difference therebetween of 0.00005 or less, and the remaining two prisms opposed thereto have a refractive index difference therebetween of 0.00005 or less.

Cross dichroic prism, method of making the same, and full-color projector using the same

Cross dichroic prism, method of making the same, and full-color

Growing community of inventors

Kanagawa, Japan

Yasuhiro Iwaguchi