Patent ID: 8337201
Filing Date: 2012-12-25
Classification: A61C,G02B

Abstract:
1. A self-positioning dental light filtering device, comprising a transparent filter member for blocking optically harmful light emitted from a tip of a dental curing device, a support for supporting the filter member in an upright position above the tip of the curing device, a rotational bearing having concentric outer and inner components rotatable relative to one another about an axis of rotation, the outer component being immovable relative to the support and the inner component defining an opening for receiving the tip or other component of the dental curing device, a retaining device for holding the tip or other component of the dental curing device substantially centered inside the rotational bearing and substantially rotationally stationary relative to the inner component of the rotational bearing when the tip or other component is received in the opening, and a counterweight below the rotational bearing for causing the filter member to remain in said upright position when the tip of the curing device and/or curing device itself is rotated about said axis of rotation.