Light control element
AssigneeSumitomo Osaka Cement Co., Ltd.
InventorsJunichiro Ichikawa, Futoshi Yamamoto, Takashi Shinriki, Yoshihiro Hashimoto
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Abstract
The present invention intends to control DC drift phenomenon in a light control element having ridge structure, and to provide a light control element with high drive stability in a large area. The present invention has character that, in a light control element being equipped with a base plate that has an electrooptic effect, an optical guide and an electrode for modulation that are formed on said base plate, which has ridge structure, an anti-DC drift layer is installed on the surface of the above mentioned base plate where the optical guide is formed, and annealing treatment is performed after ridge processing.
Claims8
A light control element equipped with a base plate that has an electrooptic effect, an optical guide and an electrode for modulation formed on said base plate, which has ridge structure, wherein:
- an anti-DC drift layer is formed on a surface of the base plate, where the optical guide is formed, by doping anti-drift materials from said base plate.
Dependencies are inferred from the claim text.