Galvanometer mirror and optical switching device using the same

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising a first coil and a second coil;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• magnetic circuits,
• wherein the first coil and the second coil are respectively disposed at a front side and a back side of the supporting members.

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising a first coil and a second coil;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• magnetic circuits,
• wherein at least a part of a first magnetic circuit acting on the first coil and at least a part of a second magnetic circuit acting on the second coil are respectively disposed at a front side and a back side of the supporting members.

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising a first magnetic member and a second magnetic member;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• coils,
• wherein the first magnetic member and the second magnetic member are respectively disposed at a front side and a back side of the supporting members, and a first coil corresponding to the first magnetic member and a second coil corresponding to the second magnetic member are respectively disposed at the front side and the back side of the supporting members.

An optical switching device having a galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising a first coil and a second coil;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• magnetic circuits,
• wherein the first coil and the second coil are disposed at both sides of a plane which passes through a center of gravity of the moving body and which is parallel to a surface of said mirror, and
• wherein light from a first light conducting member is reflected at the galvanometer mirror so as to be selectively incident on a plurality of second light conducting members by controlling a tilt of the galvanometer mirror.

A galvanometer mirror comprising at least;

• a mirror;
• a moving body comprising a first coil and a second coil;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• magnetic circuits including magnetic members,
• wherein the first coil and the second coil are at least one of:
• (i) respectively disposed at a front side and a back side of the supporting members, (ii) disposed at both sides of a plane which passes through center of gravity of the moving body and which is parallel to a surface of the mirror, and (iii) disposed at both sides of a plane which passes through a rotation axis of the moving body and which is parallel, to the surface of the mirror, and
• wherein a tilt of the mirror is controlled by applying drive signals to at least one of the first coil and the second coil.

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising a first magnetic member and a second magnetic member;
• supporting members for supporting the moving body tiltably around a first axis arid a second axis with respect to a stationary member such that the first magnetic member is adapted to tilt the moving member around the first axis and the second magnetic member is adapted to tilt the moving member around the second axis;
• and
• coils,
• wherein the first magnetic member and the second magnetic member are at least one of:
• (i) respectively disposed at a front side and a back side of the supporting members, (ii) respectively disposed at a front side and a back side of a plane which passes through a center of gravity of the moving body and which is parallel to a surface of the mirror, and (iii) respectively disposed at a front side and a back side of a plane which passes through a rotation axis of the moving body and which is parallel to the surface of the mirror, and
• wherein a tilt of the mirror is controlled by applying drive signals to the coils.

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising coils;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member;
• and
• magnetic circuits respectively including a first magnetic member and a second magnetic member,
• wherein the first magnetic member and the second magnetic member are at least one of:
• (i) respectively disposed at a front side and a back side of the supporting members, (ii) respectively disposed at a front side and a back side of a plane which passes through a center of gravity of the moving body and which is parallel to a surface of the mirror, and (iii) respectively disposed at a front side and a back side of a plane which passes through a rotation axis of the moving body and which is parallel to the surface of the mirror, and
• wherein a tilt of the mirror is controlled by applying drive signals to the coils.

A galvanometer mirror comprising at least:

• a mirror;
• a moving body comprising magnetic members;
• supporting members for supporting the moving body tiltably around at least a first axis with respect to a stationary member, and
• a first coil and a second coil,
• wherein the first coil and the second coil are at least one of (i) respectively disposed at a front side and a back side of the supporting members, (ii) disposed at both sides of a plane which passes through a center of gravity of the moving body and which is parallel to a surface of the mirror, and (iii) disposed at both sides of a plane which passes through a rotation axis of the moving body arid which is parallel to the surface of the mirror, and
• wherein a tilt of the mirror is controlled by applying drive signals to at least one of the first coil and the second coil.