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US 2026/0103376 A1Published application
Light deflector
AssigneeStanley Electric Co., Ltd.
InventorHaruki TANAKA
Life of this patent
Estimating the term…
Abstract
A light deflector includes a mirror portion, torsion bars and extending from each side of the mirror portion along a rotation axis, inner actuators and coupling to outer coupling regions of the torsion bars and from both sides and reciprocally rotating the torsion bars and around the rotation axis, and a slit and a slit formed in the torsion bars and having closed both ends and extending along the rotation axis over a length range that reaches an inner coupling region and an outer coupling region.
Claims8
A light deflector comprising:
- a mirror portion having a mirror surface on one side in a thickness direction and configured to reciprocally rotate around a rotation axis (Da) perpendicular to the thickness direction;
- a pair of torsion bars configured to extend along the rotation axis from inner coupling positions of both ends of the mirror portion in an extending direction of the rotation axis;
- actuators coupling to the torsion bars from both sides in a width direction at an outer coupling position apart from the inner coupling position in the extending direction and reciprocally rotating the torsion bars around the rotation axis at the outer coupling position;
- and
- slits formed in the torsion bars such that both ends in the extending direction are closed in a front view as a direction view when the mirror surface is viewed from the one side in the thickness direction and the slits extend along the rotation axis in a length range included between the inner coupling position and the outer coupling position in the extending direction, wherein
- a dimension of the torsion bar between both ends in the front view is Wa, and a thickness in the front view is Ta,
- a width of the slit in the front view is Wb, and
- (Wa−Wb)/Ta<1 is satisfied.
5 more elements
Dependencies are inferred from the claim text.