Patent ID: 11950880
Assignee: ALIGN TECHNOLOGY, INC.
Field: Optics (Instruments)
Classification: CPC A  G | IPC A  F  G

Claim 0:
1. An apparatus for intraoral imaging, the apparatus comprising:
a light source for generating light;
an optics system for focusing the light; and
a light-guiding part having an entrance and an exit,
wherein the light source, the optics system and the light-guiding part are arranged such that the light passes through the optics system, enters the light-guiding part via the entrance, and exits the light-guiding part via the exit, and
wherein the optics system is configured such that, upon entering the light-guiding part, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.