Kabushiki Kaisha Topcon

Reiji Hashimoto

Takashi Takahashi

Nobuo Hori

Shigenori Nagano

A method of patterning an optical device for an optical IC whose purpose is to diffract a light beam incident on one surface of a device substrate to cause a light beam to emerge from another surface of the device. In this method, a layer of a substance of variable refractive index is formed on an optical substrate, coherent light is caused to irradiate the layer from the direction of the normal to the surface which will be the incidence side of the device when it is used or from the opposite side, and coherent light is caused to irradiate the layer from the direction of the normal to the surface which will be the emergence side of the device when it is used or from the opposite side to form an interference pattern on the layer that performs diffraction.

Growing community of inventors

Tokyo, Japan

Reiji Hashimoto