Optical scanning-type touch panel

An optical scanning-type touch panel comprising:

• an optical scanner for angularly scanning light in a plane substantially parallel to a predetermined region;
• and an optical transceiver for projecting light onto said optical scanner and receiving part of scanning light of said optical scanner;
• for measuring a scanning light cut-off position, which is produced in said predetermined region by an indicator, based on a light receiving output of said optical transceiver that corresponds to a scanning angle, said optical scanning-type touch panel being characterized in that
• said optical scanner and said optical transceiver are mounted on a single base body as one unit, and
• a polygon mirror and a motor constituting said optical scanner are fixed with a single mounting member by interposing a movement adjusting ring and a polygon mirror pressing member between said polygon mirror and motor.

An optical scanning-type touch panel comprising:

• an optical scanner for angularly scanning light in a plane substantially parallel to a predetermined region;
• and an optical transceiver for projecting light onto said optical scanner and receiving part of scanning light of said optical scanner;
• for measuring a scanning light cut-off position, which is produced in said predetermined region by an indicator, based on a light receiving output of said optical transceiver that corresponds to a scanning angle, said optical scanning-type touch panel being characterized in that
• said optical scanner and said optical transceiver are mounted on a single base body as one unit,
• said optical transceiver comprises a light emitting element, a collimation lens for changing light from said light emitting element into parallel light and a lens holder for fixing said collimation lens, said lens holder having a groove running in a direction perpendicular to an optical axis, and
• a collimate adjustment is performed by inserting a deflecting jig into said groove from a direction perpendicular to the optical axis and moving said lens holder in a direction parallel to the optical axis to make a fine adjustment to a distance between said light emitting element and said collimation lens.

An optical scanning-type touch panel comprising:

• an optical scanner for angularly scanning light in a plane substantially parallel to a predetermined region;
• and an optical transceiver for projecting light onto said optical scanner and receiving part of scanning light of said optical scanner;
• for measuring a scanning light cut-off position, which is produced in said predetermined region by an indicator, based on a light receiving output of said optical transceiver that corresponds to a scanning angle, said optical scanning-type touch panel being characterized in that
• said optical scanner and said optical transceiver are mounted on a single base body as one unit, and
• said optical transceiver comprises a light emitting element, a collimation lens for changing light from said light emitting element into parallel light, and an aperture for limiting a size of light from said collimation lens, said aperture being formed in two or more stages.

An optical scanning-type touch panel comprising:

• an optical scanner for angularly scanning light in a plane substantially parallel to a predetermined region;
• and an optical transceiver for projecting light onto said optical scanner and receiving part of scanning light of said optical scanner;
• for measuring a scanning light cut-off position, which is produced in said predetermined region by an indicator, based on a light receiving output of said optical transceiver that corresponds to a scanning angle, said optical scanning-type touch panel being characterized in that
• said optical scanner and said optical transceiver are mounted on a single base body as one unit,
• said optical transceiver comprises a light receiving element for receiving part of scanning light, a light receiving lens for focusing light on said light receiving element, and a lens holder for fixing said light receiving lens, said lens holder having a groove running in a direction perpendicular to an optical axis, and
• a fine adjustment is made to a distance between said light receiving element and said light receiving lens by inserting a deflecting jig into said groove from a direction perpendicular to the optical axis and moving said lens holder in a direction parallel to the optical axis.