Patent ID: 8395834
Filing Date: 2013-03-12
Classification: G02B,H01L

Abstract:
1. A deflecting mirror comprising: a fixed base member; a mirror having a reflection surface; a support member configured to swingablly support the mirror; a pair of driving beam members, each of which has a first end connected with the fixed base member and a second end connected with the support member to support the support member from both sides thereof; and a piezoelectric member fixed to each of the pair of driving beam members and including first and second piezoelectric members, wherein the first piezoelectric member extends from the first end of each driving beam member while having substantially one third or two thirds of a length of the driving beam member, and the second piezoelectric member extends from the second end of each driving beam member while having substantially two thirds or one third of the length of the driving beam member, wherein the piezoelectric member and the pair of driving beam members constitute a piezoelectric unimorph or bimorph structure, and wherein when a voltage is applied to the piezoelectric member, the pair of driving beam members is driven at a same time in opposite directions, thereby applying a moment to the support member, resulting in swinging of the mirror.