Patent ID: 7993209

Claim:
A golf address deviation detecting apparatus for detecting inaccuracies in loft angle, lie angle, and face orientation upon address by a stationary golf club, the apparatus comprising: multiple light reflecting sections attached to a pedestal; said pedestal being detachably mounted on an existing striking face of the golf club; said multiple light reflecting sections being attached to the pedestal so as to be concavely bent so as to form an angle therebetween ranging from one degree to five degrees and in a top to bottom direction with respect to the existing striking face of the golf club; a light receiving area, said light receiving area comprising a light source and a light receiving grid; and said light source irradiating specific position focused light-beams onto the light reflecting sections, respectively; said light source being a laser light source and said focused light-beam being a line laser: wherein the light reflecting sections are arranged in positions where extensions of the planes of the light reflecting sections are intersected with each other; and wherein the apparatus detects inaccuracies in loft angle, lie angle, and face orientation and distinguishes them from one another upon a stationary address by the golf club based on differences among the position of the line laser, reflected by the light reflecting sections, on the light receiving grid of the light receiving area.