Patent ID: 8619250
Filing Date: 2013-12-31
Classification: G01C

Abstract:
1. A rotary laser emitting apparatus comprising: a rotary body; a foundation configured to rotatably support the rotary body about an axis; a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body; a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal; an absolute slope detecting mechanism disposed in the foundation to detect a slope of the axis of the foundation in relation to a horizontal plane as an absolute slope signal; and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism, wherein the transmitting section is configured to transmit the absolute slope signal detected by the absolute slope detecting mechanism.